Self-cleaning antifouling anti-static floor coating and preparation method thereof

Abstract

The invention relates to the technical field of petrochemical chemical materials, in particular to a self-cleaning antifouling anti-static floor coating and a preparation method thereof.The formula of the self-cleaning antifouling anti-static floor coating comprises a base material, a curing agent, a modifier, conductive graphene, nano TiO2, fluorosilicone modified acrylate, conductive carbon black, a silane coupling agent, a flatting agent, a defoaming agent and a solvent. Wherein epoxy resin is selected as the base material, diethylenetriamine is selected as the curing agent, polyurethane is selected as the modifying agent, gamma-aminopropyltriethoxysilane is selected as the silane coupling agent, polyether modified polydimethylsiloxane is selected as the flatting agent, nonionic polysiloxane-polyether copolymer emulsion is selected as the defoaming agent, and a solvent is selected as the solvent. Propylene glycol methyl ether acetate is selected as the solvent. The anti-static and self-cleaning capabilities of the floor coating are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of petrochemical materials, and in particular to a self-cleaning, anti-fouling and anti-static floor coating and a preparation method thereof. Background Art

[0002] The current floor coatings on the market have insufficient self-cleaning and anti-fouling properties. The surface of ordinary floor coatings easily absorbs pollutants such as dust and stains, and is difficult to clean. In addition, existing floor coatings cannot effectively conduct static electricity, which makes static electricity easily accumulate on the ground, increasing the risk of electrostatic discharge. Existing floor coatings cannot effectively conduct static electricity, which makes static electricity easily accumulate on the ground, increasing the risk of electrostatic discharge. In addition, the current preparation process of floor coatings mostly relies on manual operation and has a low degree of automation.

[0003] Chinese Patent Publication No. CN102925041A discloses a floor coating and its preparation method. The coating comprises components A and B. Component A comprises, by weight, 25-40% polyaspartic acid ester resin, 5-10% hydroxy acrylic resin, 0.2-0.5% dispersant, 3-10% wear-resistant additive, 10-15% anti-rust pigment, 20-40% pigment and filler, 0.2-0.5% defoamer, 0.2-0.5% leveling agent, and 5-10% solvent. The preparation process includes weighing the components according to the formula, preparing component A, and packaging. However, this invention fails to improve the antistatic and self-cleaning properties of the floor coating. Summary of the Invention

[0004] To this end, the present invention provides a self-cleaning, anti-fouling and anti-static floor coating and a preparation method thereof, so as to overcome the problems of low anti-static and self-cleaning capabilities of floor coatings in the prior art.

[0005] To achieve the above object, the present invention provides a self-cleaning, anti-fouling and anti-static floor coating, the formula of the self-cleaning, anti-fouling and anti-static floor coating includes a base material, a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone-modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent and a solvent, wherein:

[0006] The base material is epoxy resin, the curing agent is diethylenetriamine, the modifier is polyurethane, the silane coupling agent is γ-aminopropyltriethoxysilane, the leveling agent is polyether-modified polydimethylsiloxane, the defoaming agent is non-ionic polysiloxane-polyether copolymer emulsion, and the solvent is propylene glycol methyl ether acetate.

[0007] Furthermore, the epoxy resin is denoted by M1 in parts by mass, M1 is set as a preset first part by mass, and 40 parts ≤ M1 ≤ 50 parts;

[0008] The mass parts of the diethylenetriamine are M2, and M2 is set to the preset second mass parts, 3.04 parts≤M2≤3.80 parts;

[0009] The mass parts of the polyurethane are M3, and M3 is set as the preset third mass parts, 5 parts≤M3≤10 parts;

[0010] The conductive graphene has a mass of M4, where M4 is a preset fourth mass, and 3 parts ≤ M4 ≤ 5 parts;

[0011] The mass of the nano-TiO2 is M5, which is set as the preset fifth mass, and 2 parts ≤ M5 ≤ 4 parts;

[0012] The mass part of the fluorosilicone modified acrylate is M6, and M6 is set as the preset sixth mass part, 4 parts≤M6≤6 parts;

[0013] The mass part of the conductive carbon black is M7, which is set to be the seventh mass part, and 1 part ≤ M7 ≤ 2 parts;

[0014] The mass part of the γ-aminopropyltriethoxysilane is M8, and M8 is set as the preset eighth mass part, 1 part ≤ M8 ≤ 2 parts;

[0015] The mass part of the polyether-modified polydimethylsiloxane is M9, and M9 is set to the preset ninth mass part, 0.5 part≤M9≤1 part;

[0016] The mass part of the nonionic polysiloxane-polyether copolymer emulsion is M10, and M10 is set to be the preset tenth mass part, 0.3 part≤M10≤0.5 part;

[0017] The mass part of the propylene glycol methyl ether acetate is M11, and M11 is set as the preset eleventh mass part, 60 parts≤M11≤70 parts.

[0018] On the other hand, the present invention also provides a method for preparing a self-cleaning, antifouling, and antistatic floor coating, the preparation method comprising:

[0019] Step S1, weighing raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating to obtain raw materials of target mass;

[0020] Step S2, dispersing the base material in the target mass raw material to obtain a dispersed base material;

[0021] Step S3, mixing the dispersed base material with the additives in the target mass raw material to obtain a mixed coating;

[0022] Step S4, filtering the mixed coating to obtain a self-cleaning, anti-fouling, and anti-static floor coating.

[0023] Furthermore, in step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling, anti-static floor coating, the formula of the self-cleaning, anti-fouling, anti-static floor coating is input into the programmable logic controller, and the programmable logic controller controls the feed valve to transfer each raw material in the formula of the self-cleaning, anti-fouling, anti-static floor coating to the batching scale one by one, and the batching scale weighs each raw material one by one to obtain the target quality raw material;

[0024] In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weight Wi of each raw material in the batching scale is monitored in real time, and the feed valve is controlled in real time according to the feed valve control algorithm u(t), and the setting is:

[0025] The feed valve control algorithm u(t) is:

[0026]

[0027] umax is the maximum opening of the feed valve;

[0028] υ is the threshold coefficient for starting precise feeding, 0≤υ≤1;

[0029] δ is the adjustment coefficient;

[0030] W(t) is the current weight of raw materials at time t;

[0031] t is the weighing time

[0032] Wset is the preset weight of the current raw material.

[0033] Furthermore, in step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weighing time t and the current raw material weight W(t) at time t are obtained in real time, and the current raw material weight W(t) at time t is compared with the preset target raw material weight, and the current weighing stage is judged according to the comparison result, and the feed valve is controlled according to the judgment result, wherein:

[0034] Setting the preset target raw material weight includes the first transition preset mass W1, the second transition preset mass W2 and each preset raw material weight Wset, W1 = 0.8 × Wset, W2 = 0.9 × Wset;

[0035] When W(t) < W1, the current weighing stage is determined to be a fast feeding stage, the feeding valve is controlled, and the symmetrical feeding speed Vt is calculated according to the weighing time t and the current raw material weight W(t) at time t, and Vt = W(t) / t is set. The programmable logic controller controls the feeding valve according to the weighing speed Vt;

[0036] When W1≤W(t)<W2, the current weighing stage is determined to be a slow approach stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / t. The programmable logic controller controls the feed valve according to the weighing speed Vt;

[0037] When W2≤W(t)<Wset, the current weighing stage is determined to be the micro-compensation stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / 2t. The programmable logic controller controls the feed valve according to the weighing speed Vt;

[0038] When W(t)=Wset, it is determined that the current weighing stage is the weighing completion stage, and the feed valve is controlled, and the programmable logic controller controls the feed valve to be closed.

[0039] Furthermore, in step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weighing accuracy A of the batching scale is obtained, the weighing accuracy A is compared with the preset weighing accuracy A0, and the weighing accuracy of the batching scale is judged according to the comparison result, and the process of controlling the feed valve is adjusted according to the judgment result, wherein:

[0040] When A>A0, the weighing accuracy of the batching scale is judged to be low, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×α, α is the low precision coefficient, α=0.8-0.3×e -(A-A0) ;

[0041] When A=A0, the weighing accuracy of the batching scale is judged to be moderate, and the process of controlling the feed valve is not adjusted;

[0042] When A<A0, the weighing accuracy of the batching scale is determined to be high, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×β, β is the high precision coefficient, β=1.32-0.2×e -0.7×(A0-A) .

[0043] Furthermore, in step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the angle of repose Bi of each raw material is obtained, and the angle of repose Bi of each raw material is compared with the preset angle of repose Bi0 of each raw material. According to the comparison result, the compliance of the fluidity of the raw material and the effectiveness of the process of adjusting and controlling the feed valve are judged, and the process of adjusting and controlling the feed valve is optimized according to the judgment result, wherein:

[0044] When Bi≤Bi0, it is determined that the fluidity of the raw material meets the standard, the process of adjusting the control feed valve is effective, and the process of adjusting the control feed valve is not optimized;

[0045] When Bi>Bi0, it is determined that the fluidity of the raw material does not meet the standard, and the process of adjusting the control feed valve is invalid. The process of adjusting the control feed valve is optimized, and the high-precision coefficient after optimization is set to β`, β`=Bi / (Bi-Bi0)×β.

[0046] Furthermore, in step S2, when dispersing the base material in the target mass raw material, the base material in the target mass raw material is transferred to a high-speed disperser for dispersion treatment to obtain a dispersed base material, and the dispersion treatment includes initial dispersion, secondary dispersion and final dispersion. The initial dispersion speed of the high-speed disperser is set to Vfc, Vfc = (Wset / 10) rpm, the initial dispersion time is Tfs, Tfs = 30 minutes, the secondary dispersion speed is Vec, Vec = (Wset / 5×Vfc) rpm, the secondary dispersion time is Tec, Tec = 40 minutes, the final dispersion speed is Vzz, Vzz = (Wset / 2×Vfc) rpm, and the final dispersion time is Tzz, Tzz = 5 minutes;

[0047] In step S2, when the base material in the target quality raw material is dispersed, a dispersion temperature C is obtained, the dispersion temperature C is compared with a preset dispersion temperature C0, the effectiveness of the dispersion treatment is judged according to the comparison result, and the dispersion treatment is corrected according to the judgment result, wherein:

[0048] When C≤C0, the effectiveness of the decentralized processing is determined to be effective, and no correction is performed on the decentralized processing;

[0049] When C>C0, the dispersion process is judged to be invalid, and the dispersion process is corrected and set. The initial dispersion speed after correction is Vfc`=γ×Vfc, γ is the temperature coefficient, γ=0.74+0.16 / e c-c0 .

[0050] Furthermore, in step S3, when the dispersed base material and the additive in the target mass raw material are mixed, the dispersed base material and the additive in the target mass raw material are transferred to a planetary mixer, and the dispersed base material and the additive in the target mass raw material are mixed by the planetary mixer to obtain a mixed coating, and the mixing process includes a pre-mixing stage, a main mixing stage and a fine mixing stage. The additive in the target mass raw material includes a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent and a solvent. It is set as follows:

[0051] Premixing stage: premixing rotation speed is Vyh, 30rpm≤Vyh≤50rpm, premixing revolution speed is Vyh2, 10rpm≤Vyh≤15rpm, premixing time is Tyh, 5min≤Tyh≤15min;

[0052] Main mixing stage: the rotation speed increase rate is ΔVt, ΔVt=20rpm, the main mixing final rotation speed is Vzmax, Vzmax=3×Vyh, the main mixing revolution speed is Vzh, Vzh=Vyh2, the main mixing time is Tzh, 15min≤Tzh≤60min;

[0053] Fine mixing stage: the rotation speed reduction rate is ΔVj, ΔVj=10rpm, the final rotation speed of fine mixing is Vjxmin, Vjxmax=1.5×Vyh, the fine mixing revolution speed is Vjx2, Vjx2=Vyh2, and the fine mixing time is Tjx, 5min≤Tjx≤15min.

[0054] Furthermore, in step S3, when the dispersed base material is mixed with the additive in the target mass raw material, the mixed coating viscosity H within the sampling period is obtained, and the mixed coating viscosity H is compared with the preset mixed coating viscosity H0, and the effectiveness of the mixing process is judged according to the comparison result, and the mixing process is corrected according to the judgment result, wherein:

[0055] When H>H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(1.23-0.16×e H0-H );

[0056] When H = H0, the mixing process is determined to be effective and no correction is performed on the mixing process;

[0057] When H<H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(0.76+0.18×e H-H0).

[0058] Compared with the prior art, the beneficial effects of the present invention are that the self-cleaning, anti-fouling and anti-static floor coating ensures rapid charge dissipation and avoids static electricity accumulation by introducing a dual conductive system of conductive graphene and conductive carbon black. The self-cleaning, anti-fouling and anti-static floor coating also photocatalytically degrades pollutants by introducing nano-TiO2, and at the same time introduces fluorosilicone-modified acrylate to repel pollution, thereby reducing the frequency of cleaning. The self-cleaning, anti-fouling and anti-static floor coating provides a coating main structure by introducing epoxy resin to ensure that the floor does not fall off during long-term use. The self-cleaning, anti-fouling and anti-static floor coating introduces two Ethylenetriamine reacts with epoxy resin to form a three-dimensional cross-linked network, thereby improving the hardness and chemical resistance of the self-cleaning, anti-fouling, anti-static floor coating and shortening the curing time of the self-cleaning, anti-fouling, anti-static floor coating. The self-cleaning, anti-fouling, anti-static floor coating introduces polyurethane to toughen the epoxy resin to improve flexibility, reduce the risk of cracking, and adapt to temperature difference deformation. The self-cleaning, anti-fouling, anti-static floor coating introduces fluorosilicone-modified acrylate to form a hydrophobic and oleophobic film on the surface of the self-cleaning, anti-fouling, anti-static floor coating, thereby enabling the self-cleaning, anti-fouling, anti-static floor coating to achieve the function of preventing stain penetration.

[0059] In particular, the preparation method achieves high-precision and high-efficiency weighing of complex formulas through staged dynamic control, multi-parameter feedback compensation and adaptive optimization of raw material characteristics in step S1, providing a solid foundation for the stability of the subsequent mixing process and the conductivity and self-cleaning properties of the final coating. The preparation method achieves efficient and uniform dispersion of the base material through the intelligent staged dispersion strategy, temperature-sensitive speed correction and adaptive parameter design of the formula quantity in step S2, while ensuring the structural integrity of the nanofunctional material, significantly improving production safety and process repeatability. The preparation method achieves efficient dispersion and performance optimization of complex formulas through the staged mixing strategy and intelligent feedback correction in step S3, further improving the conductivity and self-cleaning properties of the self-cleaning, anti-fouling and anti-static floor coating. The preparation method protects the activity of functional ingredients while efficiently removing impurities through the synergistic effect of primary filtration and fine filtration in step S4, so as to improve the construction performance, coating quality and long-term stability of the coating, thereby further improving the conductivity and self-cleaning properties of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a structural schematic diagram of the preparation method of the self-cleaning, anti-fouling and anti-static floor coating of this embodiment. DETAILED DESCRIPTION

[0061] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0062] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0063] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0064] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0065] A self-cleaning, anti-fouling, and anti-static floor coating, the formula of which includes a base material, a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone-modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent, and a solvent, wherein:

[0066] The base material is epoxy resin, the curing agent is diethylenetriamine, the modifier is polyurethane, the silane coupling agent is γ-aminopropyltriethoxysilane, the leveling agent is polyether-modified polydimethylsiloxane, the defoaming agent is nonionic polysiloxane-polyether copolymer emulsion, and the solvent is propylene glycol methyl ether acetate;

[0067] The mass parts of the epoxy resin are M1, and M1 is set as the preset first mass parts, 40 parts≤M1≤50 parts;

[0068] The mass parts of the diethylenetriamine are M2, and M2 is set to the preset second mass parts, 3.04 parts≤M2≤3.80 parts;

[0069] The mass parts of the polyurethane are M3, and M3 is set as the preset third mass parts, 5 parts≤M3≤10 parts;

[0070] The conductive graphene has a mass of M4, where M4 is a preset fourth mass, and 3 parts ≤ M4 ≤ 5 parts;

[0071] The mass of the nano-TiO2 is M5, which is set as the preset fifth mass, and 2 parts ≤ M5 ≤ 4 parts;

[0072] The mass part of the fluorosilicone modified acrylate is M6, and M6 is set as the preset sixth mass part, 4 parts≤M6≤6 parts;

[0073] The mass part of the conductive carbon black is M7, which is set to be the seventh mass part, and 1 part ≤ M7 ≤ 2 parts;

[0074] The mass part of the γ-aminopropyltriethoxysilane is M8, and M8 is set as the preset eighth mass part, 1 part ≤ M8 ≤ 2 parts;

[0075] The mass part of the polyether-modified polydimethylsiloxane is M9, and M9 is set to the preset ninth mass part, 0.5 part≤M9≤1 part;

[0076] The mass part of the nonionic polysiloxane-polyether copolymer emulsion is M10, and M10 is set to be the preset tenth mass part, 0.3 part≤M10≤0.5 part;

[0077] The mass part of the propylene glycol methyl ether acetate is M11, and M11 is set as the preset eleventh mass part, 60 parts≤M11≤70 parts.

[0078] Specifically, the self-cleaning, anti-fouling and anti-static floor coating ensures rapid charge dissipation and avoids static electricity accumulation by introducing a dual conductive system of conductive graphene and conductive carbon black. The self-cleaning, anti-fouling and anti-static floor coating also photocatalytically degrades pollutants by introducing nano-TiO2, and at the same time introduces fluorosilicone-modified acrylate to repel pollution, thereby reducing the frequency of cleaning. The self-cleaning, anti-fouling and anti-static floor coating provides a coating main structure by introducing epoxy resin to ensure that the floor does not fall off during long-term use. The self-cleaning, anti-fouling and anti-static floor coating introduces diethylenetriamine and epoxy The resin reaction forms a three-dimensional cross-linked network, thereby improving the hardness and chemical resistance of the self-cleaning, anti-fouling and anti-static floor coating and shortening the curing time of the self-cleaning, anti-fouling and anti-static floor coating. The self-cleaning, anti-fouling and anti-static floor coating introduces polyurethane to toughen the epoxy resin to improve flexibility, reduce the risk of cracking, and adapt to temperature difference deformation. The self-cleaning, anti-fouling and anti-static floor coating introduces fluorosilicone-modified acrylate to form a hydrophobic and oleophobic film on the surface of the self-cleaning, anti-fouling and anti-static floor coating, thereby enabling the self-cleaning, anti-fouling and anti-static floor coating to achieve the function of preventing stain penetration.

[0079] Specifically, the conductive graphene refers to a graphene material with conductive properties, the nano-TiO2 refers to titanium dioxide with a particle size at the nanometer level, the fluorosilicone-modified acrylate refers to a modified material obtained by introducing fluorine-containing groups and silicon-containing groups into an acrylate polymer, the conductive carbon black refers to carbon black with resistive properties, and the diethylenetriamine refers to a material with a molecular formula of C4H13 N3 is a slightly yellow viscous liquid. The polyurethane is a polymer material with a repeating structural unit of urethane segments prepared by the reaction of isocyanate and polyol. The γ-aminopropyltriethoxysilane is a polymer with a molecular formula of C9H 23 The silane coupling agent of NO3Si, the polyether-modified polydimethylsiloxane refers to an organic silicone surfactant formed by chemically connecting polydimethylsiloxane segments and polyether segments, the non-ionic polysiloxane-polyether copolymer emulsion refers to a non-ionic emulsion obtained by copolymerization of polysiloxane and polyether, and the propylene glycol methyl ether acetate refers to a propylene glycol methyl ether acetate with a molecular formula of C6H 12 O3 is a colorless transparent liquid.

[0080] See also Figure 1 As shown, it is a schematic flow chart of the preparation method of the self-cleaning, anti-fouling and anti-static floor coating of this embodiment, and the preparation method includes:

[0081] Step S1, weighing raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating to obtain raw materials of target mass;

[0082] Step S2, dispersing the base material in the target mass raw material to obtain a dispersed base material;

[0083] Step S3, mixing the dispersed base material with the additives in the target mass raw material to obtain a mixed coating;

[0084] Step S4, filtering the mixed coating to obtain a self-cleaning, anti-fouling, and anti-static floor coating.

[0085] Specifically, the preparation method is applied to the preparation process of self-cleaning, anti-fouling and anti-static floor coatings. The preparation method realizes efficient dispersion of conductive fillers, synergistic effect of functional components and balanced optimization of coating performance through precise raw material ratio control, multi-stage dispersion and mixing process and refined filtration treatment, thereby ensuring that the coating has the effects of anti-static, self-cleaning and anti-fouling, weather resistance and construction stability. In particular, the preparation method realizes high-precision and high-efficiency weighing of complex formulas through staged dynamic control, multi-parameter feedback compensation and adaptive optimization of raw material characteristics in step S1, providing a solid foundation for the stability of subsequent mixing process and the conductivity and self-cleaning properties of the final coating. The preparation method is intelligent in step S2. The staged dispersion strategy, temperature-sensitive speed correction and formula quantity adaptive parameter design are used to achieve efficient and uniform dispersion of the base material, while ensuring the structural integrity of the nanofunctional material, significantly improving production safety and process repeatability. The preparation method realizes efficient dispersion and performance optimization of complex formulas through the staged mixing strategy and intelligent feedback correction in step S3, further improving the conductivity and self-cleaning properties of the self-cleaning, anti-fouling and anti-static floor coating. The preparation method protects the activity of functional ingredients while efficiently removing impurities through the synergistic effect of primary filtration and fine filtration in step S4, so as to improve the construction performance, coating quality and long-term stability of the coating, thereby further improving the conductivity and self-cleaning properties of the coating.

[0086] Specifically, in step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling, anti-static floor coating, the formula of the self-cleaning, anti-fouling, anti-static floor coating is input into the programmable logic controller, and the programmable logic controller controls the feed valve to transmit each raw material in the formula of the self-cleaning, anti-fouling, anti-static floor coating to the batching scale one by one, and the batching scale weighs each raw material one by one to obtain the target quality raw material;

[0087] In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weight Wi of each raw material in the batching scale is monitored in real time, and the feed valve is controlled in real time according to the feed valve control algorithm u(t), and the setting is:

[0088] The feed valve control algorithm u(t) is:

[0089]

[0090] umax is the maximum opening of the feed valve;

[0091] υ is the threshold coefficient for starting precise feeding, 0≤υ≤1;

[0092] δ is the adjustment coefficient;

[0093] W(t) is the current weight of raw materials at time t;

[0094] t is the weighing time

[0095] Wset is the preset weight of the current raw material;

[0096] In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weighing time t and the current raw material weight W(t) at time t are obtained in real time, the current raw material weight W(t) at time t is compared with the preset target raw material weight, the current weighing stage is judged according to the comparison result, and the feed valve is controlled according to the judgment result, wherein:

[0097] Setting the preset target raw material weight includes the first transition preset mass W1, the second transition preset mass W2 and each preset raw material weight Wset, W1 = 0.8 × Wset, W2 = 0.9 × Wset;

[0098] When W(t) < W1, the current weighing stage is determined to be a fast feeding stage, the feeding valve is controlled, and the symmetrical feeding speed Vt is calculated according to the weighing time t and the current raw material weight W(t) at time t, and Vt = W(t) / t is set. The programmable logic controller controls the feeding valve according to the weighing speed Vt;

[0099] When W1≤W(t)<W2, the current weighing stage is determined to be a slow approach stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / t. The programmable logic controller controls the feed valve according to the weighing speed Vt;

[0100] When W2≤W(t)<Wset, the current weighing stage is determined to be the micro-compensation stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / 2t. The programmable logic controller controls the feed valve according to the weighing speed Vt;

[0101] When W(t)=Wset, the current weighing stage is determined to be the weighing completion stage, and the feed valve is controlled, and the programmable logic controller controls the feed valve to be closed;

[0102] In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weighing accuracy A of the batching scale is obtained, the weighing accuracy A is compared with the preset weighing accuracy A0, the weighing accuracy of the batching scale is judged according to the comparison result, and the process of controlling the feed valve is adjusted according to the judgment result, wherein:

[0103] When A>A0, the weighing accuracy of the batching scale is judged to be low, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×α, α is the low precision coefficient, α=0.8-0.3×e -(A-A0) ;

[0104] When A=A0, the weighing accuracy of the batching scale is judged to be moderate, and the process of controlling the feed valve is not adjusted;

[0105] When A<A0, the weighing accuracy of the batching scale is determined to be high, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×β, β is the high precision coefficient, β=1.32-0.2×e -0.7×(A0-A) ;

[0106] In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the angle of repose Bi of each raw material is obtained, and the angle of repose Bi of each raw material is compared with the preset angle of repose Bi0 of each raw material. According to the comparison result, the compliance of the fluidity of the raw material and the effectiveness of the process of adjusting and controlling the feed valve are judged, and the process of adjusting and controlling the feed valve is optimized according to the judgment result, wherein:

[0107] When Bi≤Bi0, it is determined that the fluidity of the raw material meets the standard, the process of adjusting the control feed valve is effective, and the process of adjusting the control feed valve is not optimized;

[0108] When Bi>Bi0, it is determined that the fluidity of the raw material does not meet the standard, and the process of adjusting the control feed valve is invalid. The process of adjusting the control feed valve is optimized, and the high-precision coefficient after optimization is set to β`, β`=Bi / (Bi-Bi0)×β.

[0109] Specifically, the programmable logic controller refers to a digital computing and operating electronic system used in an industrial environment, the feed valve refers to a control component used to control the inflow and flow rate of raw materials, the batching scale refers to a weighing device used to accurately weigh the weight of various raw materials, the target mass raw materials refer to the specific mass of raw materials that need to be weighed for each raw material according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the raw materials refer to the various components that constitute the self-cleaning, anti-fouling and anti-static floor coating, including base material, curing agent, modifier, conductive graphene, nano-TiO2, fluorosilicone modified acrylate, conductive carbon black, silane coupling agent, leveling agent, defoaming agent and solvent, and the weight of each raw material Wi refers to the real-time display on the batching scale during the weighing process. The weight of each raw material, for example, W1 represents the weight of the base material, and W2 represents the weight of the curing agent diethylenetriamine. This embodiment does not limit the method of real-time monitoring of the weight Wi of each raw material in the batching scale. For example, it can be set to install a high-precision weighing sensor on the batching scale to monitor the weight Wi of each raw material in the batching scale in real time. The maximum opening of the feed valve refers to the maximum degree to which the feed valve can be opened. The threshold coefficient for starting precise feeding refers to a coefficient between 0 and 1 for determining when to switch from the fast feeding stage to the slow approach stage. The adjustment coefficient refers to a parameter in the feed valve control algorithm for adjusting the rate of change of the valve opening. The current raw material weight at time t refers to the current raw material weight at time t during the weighing process. The weight of the raw material currently being weighed displayed on the batching scale at point t, the weighing time refers to the time elapsed from the start of weighing the raw material to the current moment, the current raw material preset weight refers to the target weight that the current raw material needs to be weighed according to the formula of the self-cleaning, anti-fouling and anti-static floor coating. This embodiment does not limit the method of obtaining the weighing time t and the current raw material weight W(t) at time t. For example, it can be set to obtain the weighing time t through a timer, and obtain the current raw material weight W(t) at time t through a weighing sensor. The first transition preset mass W1 refers to the intermediate mass value determined by the preset raw material weight Wset, and the second transition preset mass W2 refers to the intermediate mass determined according to the preset raw material weight Wset. value, the weighing speed Vt refers to the weight of the raw material weighed per unit time during the weighing process, the current raw material weight W(t-1) at time t-1 refers to the weight of the raw material currently being weighed displayed on the batching scale at time t-1 before the current weighing time t, this embodiment does not limit the way in which the programmable logic controller controls the feed valve according to the weighing speed Vt, for example, it can be set to map the weighing speed Vt to the valve opening, and control the feed valve according to the mapping result, the weighing accuracy A refers to the accuracy of the batching scale when weighing the raw material, this embodiment does not limit the way in which the weighing accuracy A of the batching scale is obtained, for example, it can be set to be obtained by consulting the batching scale parameter table,The preset weighing accuracy A0 refers to the target value of the weighing accuracy of the batching scale set according to the production requirements and quality standards of the self-cleaning, anti-fouling and anti-static floor coating, for example, the preset weighing accuracy A0 = 0.01 mg. The low-precision coefficient refers to the coefficient used to adjust the weighing speed. The high-precision coefficient refers to the coefficient used to adjust the weighing speed. The angle of repose Bi of each raw material refers to the maximum angle formed by the free surface of the pile body of each raw material in a static equilibrium state with the horizontal plane in a natural stacking state. This embodiment does not limit the method of obtaining the angle of repose Bi of each raw material. For example, the natural stacking method can be used to obtain the angle of repose Bi of each raw material. The preset angle of repose Bi0 of each raw material refers to the standard value of the angle of repose of each raw material set according to the production process and quality requirements of the self-cleaning, anti-fouling and anti-static floor coating, for example, the preset angle of repose Bi0 of each raw material is 45°.

[0110] Specifically, step S1 achieves high-precision and high-efficiency weighing of complex formulas through staged dynamic control, multi-parameter feedback compensation and adaptive optimization of raw material characteristics, providing a solid foundation for the stability of the subsequent mixing process and the conductivity and self-cleaning properties of the final coating.

[0111] Specifically, in step S2, when dispersing the base material in the target mass raw material, the base material in the target mass raw material is transferred to a high-speed disperser for dispersion treatment to obtain a dispersed base material, and the dispersion treatment includes initial dispersion, secondary dispersion and final dispersion. The initial dispersion speed of the high-speed disperser is set to Vfc, Vfc = (Wset / 10) rpm, the initial dispersion time is Tfs, Tfs = 30 minutes, the secondary dispersion speed is Vec, Vec = (Wset / 5×Vfc) rpm, the secondary dispersion time is Tec, Tec = 40 minutes, the final dispersion speed is Vzz, Vzz = (Wset / 2×Vfc) rpm, and the final dispersion time is Tzz, Tzz = 5 minutes;

[0112] In step S2, when the base material in the target quality raw material is dispersed, a dispersion temperature C is obtained, the dispersion temperature C is compared with a preset dispersion temperature C0, the effectiveness of the dispersion treatment is judged according to the comparison result, and the dispersion treatment is corrected according to the judgment result, wherein:

[0113] When C≤C0, the effectiveness of the decentralized processing is determined to be effective, and no correction is performed on the decentralized processing;

[0114] When C>C0, the dispersion process is judged to be invalid, and the dispersion process is corrected and set. The initial dispersion speed after correction is Vfc`=γ×Vfc, γ is the temperature coefficient, γ=0.74+0.16 / e c-c0 .

[0115] Specifically, the high-speed disperser refers to a device for high-speed stirring and dispersing liquids, pastes and solid particulate materials. The initial dispersion speed refers to the rotation speed of the stirring shaft of the high-speed disperser in the initial stage of dispersing the base material. The initial dispersion time refers to the time when the high-speed disperser runs at the initial dispersion speed Vfc when the base material is dispersed. The secondary dispersion speed refers to the rotation speed of the stirring shaft of the high-speed disperser when the base material is dispersed for the second time. The secondary dispersion time refers to the time when the high-speed disperser runs at the secondary dispersion speed Vec when the base material is dispersed. The final dispersion speed refers to the time when the base material is dispersed for the final time. , the rotation speed of the stirring shaft of the high-speed disperser, the final dispersion time refers to the time during which the high-speed disperser runs at the final dispersion speed Vzz when the base material is dispersed, the dispersion temperature C refers to the temperature of the material in the high-speed disperser during the dispersion process of the base material, this embodiment does not limit the method of obtaining the dispersion temperature C, such as installing a temperature sensor in the stirring container of the high-speed disperser to measure the temperature of the material in real time, the preset dispersion temperature C0 refers to the temperature value in the dispersion process pre-set according to the properties of the base material and the requirements of the dispersion process, for example, the preset dispersion temperature C0 = 23 ° C, and the temperature coefficient refers to the coefficient used to adjust the initial dispersion speed.

[0116] Specifically, step S2 achieves efficient and uniform dispersion of the base material through an intelligent phased dispersion strategy, temperature-sensitive speed correction, and adaptive parameter design of the formulation quantity, thereby significantly improving production safety and process repeatability while ensuring the structural integrity of the nanofunctional material.

[0117] Specifically, in step S3, when mixing the dispersed base material with the additives in the target mass raw material, the dispersed base material and the additives in the target mass raw material are transferred to a planetary mixer, and the dispersed base material and the additives in the target mass raw material are mixed by the planetary mixer to obtain a mixed coating. The mixing process includes a pre-mixing stage, a main mixing stage and a fine mixing stage. The additives in the target mass raw material include a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent and a solvent. It is set as follows:

[0118] Premixing stage: premixing rotation speed is Vyh, 30rpm≤Vyh≤50rpm, premixing revolution speed is Vyh2, 10rpm≤Vyh≤15rpm, premixing time is Tyh, 5min≤Tyh≤15min;

[0119] Main mixing stage: the rotation speed increase rate is ΔVt, ΔVt=20rpm, the main mixing final rotation speed is Vzmax, Vzmax=3×Vyh, the main mixing revolution speed is Vzh, Vzh=Vyh2, the main mixing time is Tzh, 15min≤Tzh≤60min;

[0120] Fine mixing stage: the rotation speed reduction rate is ΔVj, ΔVj=10rpm, the final rotation speed of fine mixing is Vjxmin, Vjxmax=1.5×Vyh, the fine mixing revolution speed is Vjx2, Vjx2=Vyh2, and the fine mixing time is Tjx, 5min≤Tjx≤15min;

[0121] In step S3, when the dispersed base material is mixed with the additive in the target mass raw material, the viscosity H of the mixed coating within the sampling period is obtained, and the viscosity H of the mixed coating is compared with the preset viscosity H0 of the mixed coating, and the effectiveness of the mixing process is judged according to the comparison result, and the mixing process is corrected according to the judgment result, wherein:

[0122] When H>H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(1.23-0.16×e H0-H );

[0123] When H = H0, the mixing process is determined to be effective and no correction is performed on the mixing process;

[0124] When H<H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(0.76+0.18×e H-H0 ).

[0125] Specifically, the planetary mixer refers to a mixing device in which the stirring member rotates around its own axis and revolves around the central axis of the container. The premixing rotation speed refers to the speed at which the stirring member rotates around its own axis when the planetary mixer performs premixing of the dispersed base material and the additive. The premixing revolution speed refers to the speed at which the stirring member rotates around the central axis of the container during the premixing stage of the planetary mixer. The premixing time refers to the time during which the planetary mixer operates at the premixing rotation speed Vyh and the premixing revolution speed Vyh2 during the premixing stage. The rotation speed Vyh is the rotation speed of the planetary mixer. The increase rate refers to the rate of increase of the self-rotation speed of the stirring component around its own axis during the main mixing stage of the planetary mixer. The main mixing final self-rotation speed refers to the maximum speed that the stirring component can reach when rotating around its own axis during the main mixing stage of the planetary mixer. The main mixing revolution speed refers to the speed at which the stirring component rotates around the central axis of the container during the main mixing stage of the planetary mixer. The main mixing time refers to the time during which the planetary mixer runs at a gradually increasing self-rotation speed and a fixed revolution speed Vzh during the main mixing stage. The rotation speed reduction rate refers to the time during which the planetary mixer runs at a gradually increasing self-rotation speed and a fixed revolution speed Vzh during the main mixing stage. The fine mixing stage of the mixer is the rate of decrease of the rotation speed of the stirring member around its own axis. The final fine mixing rotation speed refers to the speed finally reached by the stirring member rotating around its own axis during the fine mixing stage of the planetary mixer. The fine mixing revolution speed refers to the speed at which the stirring member rotates around the central axis of the container during the fine mixing stage of the planetary mixer. The fine mixing time refers to the time during which the planetary mixer operates at a gradually decreasing rotation speed and a fixed revolution speed Vjx2 during the fine mixing stage. The sampling period refers to the time interval for periodically extracting mixed coating samples for testing during the mixing process of the dispersed base material and additives by the planetary mixer. The mixed coating viscosity H refers to the viscosity of the mixed coating obtained during the sampling period. This embodiment does not limit the method for obtaining the mixed coating viscosity H during the sampling period. For example, a rotational viscometer can be used to obtain the mixed coating viscosity H during the sampling period. The preset mixed coating viscosity H0 refers to an ideal viscosity value of the mixed coating preset based on the performance requirements and construction process of the self-cleaning, anti-fouling and anti-static floor coating. For example, the preset mixed coating viscosity H0 = 1000 mPa·s.

[0126] Specifically, step S3 achieves efficient dispersion and performance optimization of complex formulas through a phased mixing strategy and intelligent feedback correction, further improving the conductivity and self-cleaning properties of the self-cleaning, anti-fouling and anti-static floor coating.

[0127] Specifically, in step S4, when filtering the mixed coating, the mixed coating is transferred to a filtering device, and the mixed coating is filtered by the filtering device to obtain a self-cleaning, anti-fouling, and anti-static floor coating. The filtering process includes a primary filtration stage and a fine filtration stage, and is set as follows:

[0128] Primary filtration stage: The specification of the primary filter is Pc, 100 mesh ≤ Pc ≤ 200 mesh;

[0129] Fine filtration stage: The specification of the fine filtration filter is Pj, 300 mesh ≤ Pj ≤ 500 mesh.

[0130] Specifically, the filtering device refers to a device used to separate solid particles, impurities and large particles that do not meet the requirements in the mixed paint to improve the purity and quality of the paint. The specifications of the primary filter screen refer to the parameters used to describe the density of the primary filter screen, and the specifications of the fine filter screen refer to the parameters used to describe the density of the fine filter screen.

[0131] Specifically, step S4, through the synergistic effect of primary filtration and fine filtration, effectively removes impurities while protecting the activity of functional components, so as to improve the construction performance, coating quality and long-term stability of the coating, thereby further improving the conductivity and self-cleaning properties of the coating.

[0132] Specifically, the implementation method of the Qushi Paichan granule traditional Chinese medicine composition and preparation method in this embodiment is as follows:

[0133] Example 1:

[0134] The formula of embodiment 1 is as follows:

[0135] The base material is epoxy resin, 40 parts by mass;

[0136] The curing agent is diethylenetriamine, 3.04 parts by mass;

[0137] The modifier is polyurethane, 5 parts by mass;

[0138] 3 parts by mass of conductive graphene;

[0139] 2 parts by mass of nano-TiO2;

[0140] 4 parts by mass of fluorosilicone modified acrylate;

[0141] 1 part by mass of conductive carbon black;

[0142] γ-aminopropyltriethoxysilane was used for silane coupling, 1 part by mass;

[0143] The leveling agent is polyether modified polydimethylsiloxane, 0.5 parts by mass;

[0144] The defoaming agent is a nonionic polysiloxane-polyether copolymer emulsion, 0.3 parts by mass;

[0145] The solvent is propylene glycol methyl ether acetate, 60 parts by mass;

[0146] The preparation method of Example 1 is:

[0147] Step S1, inputting the formula of the self-cleaning, anti-fouling and anti-static floor coating into a programmable logic controller, controlling the feed valve by the programmable logic controller to transfer each raw material in the formula of the self-cleaning, anti-fouling and anti-static floor coating to a batching scale one by one, and weighing each raw material one by one by the batching scale to obtain the target quality raw material;

[0148] Step S2: monitor the weight Wi of each raw material in the batching scale in real time, and control the feed valve in real time according to the feed valve control algorithm u(t), setting:

[0149] The feed valve control algorithm u(t) is:

[0150]

[0151] umax is the maximum opening of the feed valve;

[0152] υ is the threshold coefficient for starting precise feeding, 0≤υ≤1;

[0153] δ is the adjustment coefficient;

[0154] W(t) is the current weight of raw materials at time t;

[0155] t is the weighing time

[0156] Wset is the preset weight of the current raw material;

[0157] Step S3, real-time acquisition of the weighing time t and the current raw material weight W(t) at time t, comparing the current raw material weight W(t) at time t with the preset target raw material weight, judging the current weighing stage according to the comparison result, and controlling the feed valve according to the judgment result, wherein:

[0158] Setting the preset target raw material weight includes the first transition preset mass W1, the second transition preset mass W2 and each preset raw material weight Wset, W1 = 0.8 × Wset, W2 = 0.9 × Wset;

[0159] When W(t) < W1, the current weighing stage is determined to be a fast feeding stage, the feeding valve is controlled, and the symmetrical feeding speed Vt is calculated according to the weighing time t and the current raw material weight W(t) at time t, and Vt = W(t) / t is set. The programmable logic controller controls the feeding valve according to the weighing speed Vt;

[0160] When W1≤W(t)<W2, the current weighing stage is determined to be a slow approach stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / t. The programmable logic controller controls the feed valve according to the weighing speed Vt;

[0161] When W2≤W(t)<Wset, the current weighing stage is determined to be the micro-compensation stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / 2t. The programmable logic controller controls the feed valve according to the weighing speed Vt;

[0162] When W(t)=Wset, the current weighing stage is determined to be the weighing completion stage, and the feed valve is controlled, and the programmable logic controller controls the feed valve to be closed;

[0163] Step S4, obtaining the weighing accuracy A of the batching scale, comparing the weighing accuracy A with the preset weighing accuracy A0, judging the weighing accuracy of the batching scale according to the comparison result, and adjusting the process of controlling the feed valve according to the judgment result, wherein:

[0164] When A>A0, the weighing accuracy of the batching scale is judged to be low, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×α, α is the low precision coefficient, α=0.8-0.3×e -(A-A0) ;

[0165] When A=A0, the weighing accuracy of the batching scale is judged to be moderate, and the process of controlling the feed valve is not adjusted;

[0166] When A<A0, the weighing accuracy of the batching scale is determined to be high, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×β, β is the high precision coefficient, β=1.32-0.2×e -0.7×(A0-A) ;

[0167] Step S5, obtaining the repose angle Bi of each raw material, comparing the repose angle Bi of each raw material with the preset repose angle Bi0 of each raw material, judging the compliance of the fluidity of the raw material with the standard and the effectiveness of the process of adjusting and controlling the feed valve based on the comparison results, and optimizing the process of adjusting and controlling the feed valve based on the judgment results, wherein:

[0168] When Bi≤Bi0, it is determined that the fluidity of the raw material meets the standard, the process of adjusting the control feed valve is effective, and the process of adjusting the control feed valve is not optimized;

[0169] When Bi>Bi0, it is determined that the fluidity of the raw material does not meet the standard, and the process of adjusting the control feed valve is invalid. The process of adjusting the control feed valve is optimized, and the high-precision coefficient after optimization is set to β`, β`=Bi / (Bi-Bi0)×β;

[0170] Step S6, transferring the base material in the target mass raw material to a high-speed disperser for dispersion treatment to obtain a dispersed base material, wherein the dispersion treatment includes initial dispersion, secondary dispersion and final dispersion, and setting the initial dispersion speed of the high-speed disperser to Vfc, Vfc = (Wset / 10) rpm, the initial dispersion time to Tfs, Tfs = 30 minutes, the secondary dispersion speed to Vec, Vec = (Wset / 5×Vfc) rpm, the secondary dispersion time to Tec, Tec = 40 minutes, the final dispersion speed to Vzz, Vzz = (Wset / 2×Vfc) rpm, and the final dispersion time to Tzz, Tzz = 5 minutes;

[0171] In step S7, a dispersion temperature C is obtained, and the dispersion temperature C is compared with a preset dispersion temperature C0. The effectiveness of the dispersion process is judged according to the comparison result, and the dispersion process is corrected according to the judgment result, wherein:

[0172] When C≤C0, the effectiveness of the decentralized processing is determined to be effective, and no correction is performed on the decentralized processing;

[0173] When C>C0, the dispersion process is judged to be invalid, and the dispersion process is corrected and set. The initial dispersion speed after correction is Vfc`=γ×Vfc, γ is the temperature coefficient, γ=0.74+0.16 / e c-c0 ;

[0174] Step S8: The dispersed base material and the additives in the target mass raw material are transferred to a planetary mixer, and the dispersed base material and the additives in the target mass raw material are mixed by the planetary mixer to obtain a mixed coating. The mixing process includes a pre-mixing stage, a main mixing stage, and a fine mixing stage. The additives in the target mass raw material include a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone-modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent, and a solvent. The following are set:

[0175] Premixing stage: premixing rotation speed is Vyh, 30rpm≤Vyh≤50rpm, premixing revolution speed is Vyh2, 10rpm≤Vyh≤15rpm, premixing time is Tyh, 5min≤Tyh≤15min;

[0176] Main mixing stage: the rotation speed increase rate is ΔVt, ΔVt=20rpm, the main mixing final rotation speed is Vzmax, Vzmax=3×Vyh, the main mixing revolution speed is Vzh, Vzh=Vyh2, the main mixing time is Tzh, 15min≤Tzh≤60min;

[0177] Fine mixing stage: the rotation speed reduction rate is ΔVj, ΔVj=10rpm, the final rotation speed of fine mixing is Vjxmin, Vjxmax=1.5×Vyh, the fine mixing revolution speed is Vjx2, Vjx2=Vyh2, and the fine mixing time is Tjx, 5min≤Tjx≤15min;

[0178] Step S9, obtaining the mixed coating viscosity H within the sampling period, and comparing the mixed coating viscosity H with the preset mixed coating viscosity H0, judging the effectiveness of the mixing process based on the comparison result, and correcting the mixing process based on the judgment result, wherein:

[0179] When H>H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(1.23-0.16×e H0-H );

[0180] When H = H0, the mixing process is determined to be effective and no correction is performed on the mixing process;

[0181] When H<H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(0.76+0.18×e H-H0 );

[0182] Step S10: The mixed coating is transferred to a filtering device, and the mixed coating is filtered by the filtering device to obtain a self-cleaning, anti-fouling, and anti-static floor coating. The filtering process includes a primary filtration stage and a fine filtration stage, and is set as follows:

[0183] Primary filtration stage: The specification of the primary filter is Pc, 100 mesh ≤ Pc ≤ 200 mesh;

[0184] Fine filtration stage: The specification of the fine filtration filter is Pj, 300 mesh ≤ Pj ≤ 500 mesh.

[0185] Example 2:

[0186] The formula of embodiment 2 is as follows:

[0187] The base material is epoxy resin, 50 parts by mass;

[0188] The curing agent is diethylenetriamine, 3.80 parts by mass;

[0189] The modifier is polyurethane, 10 parts by mass;

[0190] 5 parts by mass of conductive graphene;

[0191] 4 parts by mass of nano-TiO2;

[0192] 6 parts by mass of fluorosilicone modified acrylate;

[0193] 2 parts by mass of conductive carbon black;

[0194] Silane coupling uses γ-aminopropyltriethoxysilane, 2 parts by mass;

[0195] The leveling agent is polyether modified polydimethylsiloxane, 1 part by mass;

[0196] The defoaming agent is a nonionic polysiloxane-polyether copolymer emulsion, 0.5 parts by mass;

[0197] The solvent is propylene glycol methyl ether acetate, 70 parts by mass;

[0198] The preparation method of Example 2;

[0199] The preparation method of Example 2 is consistent with that of Example 1.

[0200] Example 3:

[0201] The formula of embodiment 3 is as follows:

[0202] The base material is epoxy resin, 45 parts by mass;

[0203] The curing agent is diethylenetriamine, 3.42 parts by mass;

[0204] The modifier is polyurethane, 7.5 parts by mass;

[0205] 4 parts by mass of conductive graphene;

[0206] 3 parts by mass of nano-TiO2;

[0207] 5 parts by mass of fluorosilicone modified acrylate;

[0208] 1.5 parts by mass of conductive carbon black;

[0209] Silane coupling uses γ-aminopropyltriethoxysilane, 1.5 parts by mass;

[0210] The leveling agent is polyether modified polydimethylsiloxane, 0.75 parts by mass;

[0211] The defoaming agent is a nonionic polysiloxane-polyether copolymer emulsion, 0.4 parts by mass;

[0212] The solvent is propylene glycol methyl ether acetate, 65 parts by mass;

[0213] The preparation method of Example 3;

[0214] The preparation method of Example 3 is consistent with that of Example 1.

[0215] Example 4:

[0216] The formula of embodiment 4 is as follows:

[0217] Choose Lasjia LSJ-HYDPQ epoxy resin floor paint, manufacturer: Chengdu Fubaile Decoration Materials Industrial Co., Ltd., model: LSJ-HYDPQ, origin: Chengdu, Sichuan, solvent type: oil-based paint.

[0218] Specifically, performance test experiments were conducted on Examples 1-4, and the experimental data are shown in Table 1 below:

[0219] Table 1:

[0220] Example 1 Example 2 Example 3 Example 4

[0221] Continued Table 1:

[0222]

[0223] Among them, the visual observation score is tested according to the ASTM D3274 standard, the percentage of stain residual area is tested according to the ISO27448:2009 standard, and the contact angle is tested according to the ISO 19403-3:2017 standard.

[0224] Specifically, it can be concluded from the experimental data that Example 3 is better than Example 1, Example 2 and Example 4 in terms of visual observation score and percentage of residual stain area, indicating that the cleaning performance of Example 3 is better than Example 1, Example 2 and Example 4, which shows that Example 3 significantly improves the self-cleaning and anti-fouling properties of the coating, and obtains the optimal northern composition and optimal preparation method of the self-cleaning, anti-fouling and anti-static floor coating in this embodiment.

[0225] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A self-cleaning, anti-fouling and anti-static floor coating, characterized in that: The formula of the self-cleaning, anti-fouling and anti-static floor coating includes a base material, a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone-modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent and a solvent, wherein: The base material is epoxy resin, the curing agent is diethylenetriamine, the modifier is polyurethane, the silane coupling agent is γ-aminopropyltriethoxysilane, the leveling agent is polyether-modified polydimethylsiloxane, the defoaming agent is non-ionic polysiloxane-polyether copolymer emulsion, and the solvent is propylene glycol methyl ether acetate.

2. The self-cleaning, antifouling and antistatic floor coating according to claim 1, characterized in that: The mass parts of the epoxy resin are M1, and M1 is set as the preset first mass parts, 40 parts≤M1≤50 parts; The mass parts of the diethylenetriamine are M2, and M2 is set to the preset second mass parts, 3.04 parts≤M2≤3.80 parts; The mass parts of the polyurethane are M3, and M3 is set as the preset third mass parts, 5 parts≤M3≤10 parts; The conductive graphene has a mass of M4, where M4 is a preset fourth mass, and 3 parts ≤ M4 ≤ 5 parts; The mass of the nano-TiO2 is M5, which is set as the preset fifth mass, and 2 parts ≤ M5 ≤ 4 parts; The mass part of the fluorosilicone modified acrylate is M6, and M6 is set as the preset sixth mass part, 4 parts≤M6≤6 parts; The mass part of the conductive carbon black is M7, which is set to be the seventh mass part, and 1 part ≤ M7 ≤ 2 parts; The mass part of the γ-aminopropyltriethoxysilane is M8, and M8 is set as the preset eighth mass part, 1 part ≤ M8 ≤ 2 parts; The mass part of the polyether-modified polydimethylsiloxane is M9, and M9 is set to the preset ninth mass part, 0.5 part≤M9≤1 part; The mass part of the nonionic polysiloxane-polyether copolymer emulsion is M10, and M10 is set to be the preset tenth mass part, 0.3 part≤M10≤0.5 part; The mass part of the propylene glycol methyl ether acetate is M11, and M11 is set as the preset eleventh mass part, 60 parts≤M11≤70 parts.

3. A method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 1-2, characterized in that: The preparation method comprises: Step S1, weighing raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating to obtain raw materials of target mass; Step S2, dispersing the base material in the target mass raw material to obtain a dispersed base material; Step S3, mixing the dispersed base material with the additives in the target mass raw material to obtain a mixed coating; Step S4, filtering the mixed coating to obtain a self-cleaning, anti-fouling, and anti-static floor coating.

4. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 3, wherein: In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling, anti-static floor coating, the formula of the self-cleaning, anti-fouling, anti-static floor coating is input into the programmable logic controller, and the programmable logic controller controls the feed valve to transfer each raw material in the formula of the self-cleaning, anti-fouling, anti-static floor coating to the batching scale one by one, and the batching scale weighs each raw material one by one to obtain the target quality raw material; In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weight Wi of each raw material in the batching scale is monitored in real time, and the feed valve is controlled in real time according to the feed valve control algorithm u(t), and the setting is: The feed valve control algorithm u(t) is: umax is the maximum opening of the feed valve; υ is the threshold coefficient for starting precise feeding, 0≤υ≤1; δ is the adjustment coefficient; W(t) is the current weight of raw materials at time t; t is the weighing time Wset is the preset weight of the current raw material.

5. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 4, wherein: In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weighing time t and the current raw material weight W(t) at time t are obtained in real time, the current raw material weight W(t) at time t is compared with the preset target raw material weight, the current weighing stage is judged according to the comparison result, and the feed valve is controlled according to the judgment result, wherein: Setting the preset target raw material weight includes the first transition preset mass W1, the second transition preset mass W2 and each preset raw material weight Wset, W1 = 0.8 × Wset, W2 = 0.9 × Wset; When W(t) < W1, the current weighing stage is determined to be a fast feeding stage, the feeding valve is controlled, and the symmetrical feeding speed Vt is calculated according to the weighing time t and the current raw material weight W(t) at time t, and Vt = W(t) / t is set. The programmable logic controller controls the feeding valve according to the weighing speed Vt; When W1≤W(t)<W2, the current weighing stage is determined to be a slow approach stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / t. The programmable logic controller controls the feed valve according to the weighing speed Vt; When W2≤W(t)<Wset, the current weighing stage is determined to be the micro-compensation stage, the feed valve is controlled, and the symmetrical weighing speed Vt is calculated according to the weighing time t, the current raw material weight W(t) at time t, and the current raw material weight W(t-1) at time t-1, and Vt is set to be (W(t)-W(t-1)) / 2t. The programmable logic controller controls the feed valve according to the weighing speed Vt; When W(t)=Wset, it is determined that the current weighing stage is the weighing completion stage, and the feed valve is controlled, and the programmable logic controller controls the feed valve to be closed.

6. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 5, characterized in that: In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the weighing accuracy A of the batching scale is obtained, the weighing accuracy A is compared with the preset weighing accuracy A0, the weighing accuracy of the batching scale is judged according to the comparison result, and the process of controlling the feed valve is adjusted according to the judgment result, wherein: When A>A0, the weighing accuracy of the batching scale is judged to be low, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×α, α is the low precision coefficient, α=0.8-0.3×e -(A-A0) ; When A=A0, the weighing accuracy of the batching scale is judged to be moderate, and the process of controlling the feed valve is not adjusted; When A<A0, the weighing accuracy of the batching scale is determined to be high, and the process of controlling the feed valve is adjusted. The weighing speed after adjustment is set to Vat, Vat=Vt×β, β is the high precision coefficient, β=1.32-0.2×e -0.7×(A0-A) .

7. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 6, wherein: In step S1, when weighing the raw materials according to the formula of the self-cleaning, anti-fouling and anti-static floor coating, the angle of repose Bi of each raw material is obtained, and the angle of repose Bi of each raw material is compared with the preset angle of repose Bi0 of each raw material. According to the comparison result, the compliance of the fluidity of the raw material and the effectiveness of the process of adjusting and controlling the feed valve are judged, and the process of adjusting and controlling the feed valve is optimized according to the judgment result, wherein: When Bi≤Bi0, it is determined that the fluidity of the raw material meets the standard, the process of adjusting the control feed valve is effective, and the process of adjusting the control feed valve is not optimized; When Bi>Bi0, it is determined that the fluidity of the raw material does not meet the standard, and the process of adjusting the control feed valve is invalid. The process of adjusting the control feed valve is optimized, and the high-precision coefficient after optimization is set to β`, β`=Bi / (Bi-Bi0)×β.

8. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 3, wherein: In step S2, when the base material in the target mass raw material is dispersed, the base material in the target mass raw material is transferred to a high-speed disperser for dispersion treatment to obtain a dispersed base material, and the dispersion treatment includes initial dispersion, secondary dispersion and final dispersion. The initial dispersion speed of the high-speed disperser is set to Vfc, Vfc=(Wset / 10) rpm, the initial dispersion time is Tfs, Tfs=30 minutes, the secondary dispersion speed is Vec, Vec=(Wset / 5×Vfc) rpm, the secondary dispersion time is Tec, Tec=40 minutes, the final dispersion speed is Vzz, Vzz=(Wset / 2×Vfc) rpm, and the final dispersion time is Tzz, Tzz=5 minutes; In step S2, when the base material in the target quality raw material is dispersed, a dispersion temperature C is obtained, the dispersion temperature C is compared with a preset dispersion temperature C0, the effectiveness of the dispersion treatment is judged according to the comparison result, and the dispersion treatment is corrected according to the judgment result, wherein: When C≤C0, the effectiveness of the decentralized processing is determined to be effective, and no correction is performed on the decentralized processing; When C>C0, the dispersion process is judged to be invalid, and the dispersion process is corrected and set. The initial dispersion speed after correction is Vfc`=γ×Vfc, γ is the temperature coefficient, γ=0.74+0.16 / e c-c0 .

9. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 3, wherein: In step S3, when the dispersed base material and the additives in the target mass raw material are mixed, the dispersed base material and the additives in the target mass raw material are transferred to a planetary mixer, and the dispersed base material and the additives in the target mass raw material are mixed by the planetary mixer to obtain a mixed coating. The mixing process includes a pre-mixing stage, a main mixing stage and a fine mixing stage. The additives in the target mass raw material include a curing agent, a modifier, conductive graphene, nano-TiO2, fluorosilicone-modified acrylate, conductive carbon black, a silane coupling agent, a leveling agent, a defoaming agent and a solvent. The following are set: Premixing stage: premixing rotation speed is Vyh, 30rpm≤Vyh≤50rpm, premixing revolution speed is Vyh2, 10rpm≤Vyh≤15rpm, premixing time is Tyh, 5min≤Tyh≤15min; Main mixing stage: the rotation speed increase rate is ΔVt, ΔVt=20rpm, the main mixing final rotation speed is Vzmax, Vzmax=3×Vyh, the main mixing revolution speed is Vzh, Vzh=Vyh2, the main mixing time is Tzh, 15min≤Tzh≤60min; Fine mixing stage: the rotation speed reduction rate is ΔVj, ΔVj=10rpm, the final rotation speed of fine mixing is Vjxmin, Vjxmax=1.5×Vyh, the fine mixing revolution speed is Vjx2, Vjx2=Vyh2, and the fine mixing time is Tjx, 5min≤Tjx≤15min.

10. The method for preparing the self-cleaning, antifouling and antistatic floor coating according to claim 2, characterized in that: In step S3, when the dispersed base material is mixed with the additive in the target mass raw material, the viscosity H of the mixed coating within the sampling period is obtained, and the viscosity H of the mixed coating is compared with the preset viscosity H0 of the mixed coating, and the effectiveness of the mixing process is judged according to the comparison result, and the mixing process is corrected according to the judgment result, wherein: When H>H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(1.23-0.16×e H0-H ); When H = H0, the mixing process is determined to be effective and no correction is performed on the mixing process; When H<H0, the mixing process is determined to be invalid, and the mixing process is corrected. The pre-mixing rotation speed after correction is set to Vyh`, Vyh`=Vyh×(0.76+0.18×e H-H0 ).

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