High-suspension sand-containing continuous phase fluid composition, coating and preparation method

Abstract

The invention provides a high-suspension sand-containing continuous phase fluid composition, a coating and a preparation method, and belongs to the technical field of coating preparation, the high-suspension sand-containing continuous phase fluid composition comprises the following components by weight: 10-15 parts of deionized water; 0.5 to 0.7 part of a bactericide; 0.02 to 0.03 part of xanthan gum; 0.24 to 0.3 part of magnesium lithium silicate; 0.3 to 0.5 part of a defoaming agent; 0.3 to 0.5 part of a preservative; 2 to 2.5 parts of ethylene glycol; 2 to 3 parts of dodecanol ester; 65 to 75 parts of a continuous phase emulsion; 0.2-0.3 part of an associative thickener and 8-15 parts of quartz sand, and the particle size of the quartz sand is 80-120 meshes. The high-suspension sand-containing continuous-phase fluid composition provided by the embodiment of the invention has good fluidity and suspension stability, and can keep quartz sand in a suspension state without sinking to the bottom.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paint preparation, in particular to a high-suspension sand-containing continuous phase fluid composition, paint and preparation method. BACKGROUND

[0002] With the rapid development of exterior wall decoration coatings in China, the high quality, simulation, excellent building weight reduction characteristics and weather resistance of water-based stone-like paint have been recognized by consumers, especially the unique color point of water-based multi-color building paint, which makes the number of multi-color paint samples much higher than that of traditional stone-like paint imitation stone paint. However, only by introducing quartz sand in the color point and spraying on the wall, the texture degree and the board effect observed by the naked eye still need to be improved. Therefore, a sand-in-sand multi-color paint with better texture and appearance simulation than water-in-sand multi-color paint is designed, wherein, in a formula system, quartz sand is added to the original dispersed phase, and then part of the quartz sand is introduced into the continuous phase, and mixed to obtain a semi-finished product. However, the current semi-finished product continuous phase viscosity and suspension are not well matched, and will settle when left still, thereby affecting the stability of the semi-finished product. SUMMARY

[0003] Therefore, the present application provides a high-suspension sand-containing continuous phase fluid composition, paint and preparation method, which can solve the problem that the composition or paint will settle when left still, thereby affecting the effect.

[0004] The first aspect of the present application provides a high-suspension sand-containing continuous phase fluid composition, which comprises, by weight: deionized water: 10-15 parts; bactericide: 0.5-0.7 parts; xanthan gum: 0.02-0.03 parts; magnesium lithium silicate: 0.24-0.3 parts; defoaming agent: 0.3-0.5 parts; preservative: 0.3-0.5 parts; ethylene glycol: 2-2.5 parts; dodecanol ester: 2-3 parts; continuous phase emulsion: 65-75 parts, associative thickener: 0.2-0.3 parts, and quartz sand: 8-15 parts, the particle size of the quartz sand is 80-120 mesh.

[0005] In one embodiment of the first aspect of the present application, the ratio of the xanthan gum and the magnesium lithium silicate is 1-(8-12).

[0006] In one embodiment of the first aspect of the present application, the viscosity range of the xanthan gum is based on its 2% water dispersion, the Brookfield viscosity is between 11000 cP and 12000 cP, and the Stormer viscosity is between 70 KU and 80 KU.

[0007] In one embodiment of the first aspect of the present application, the viscosity range of the lithium magnesium silicate is between 5000 cP and 6000 cP, based on a 2% aqueous dispersion thereof, and the Brookfield viscosity is between 45 KU and 50 KU.

[0008] In one embodiment of the first aspect of the present application, the viscosity range of the lithium magnesium silicate is between 5000 cP and 6000 cP.

[0009] In one embodiment of the first aspect of the present application, the continuous phase emulsion is a pure acrylic emulsion.

[0010] In one embodiment of the first aspect of the present application, the associative thickener is a hydrophobically modified alkali-swellable associative thickener.

[0011] In a second aspect, the present application also discloses an aqueous sand-packed sand multi-color paint, which comprises, by weight parts: a dispersed phase: 65-70 parts; a continuous phase: 10-15 parts, the continuous phase being the high-suspended sand-containing continuous phase fluid composition explained in the embodiment of the first aspect; and a sand-packed sand granulation solution: 15-20 parts.

[0012] As an embodiment of the second aspect, the dispersed phase comprises, by weight parts: deionized water: 18-22 parts; preservative: 0.15-0.2 parts; ethylene glycol: 0.3-0.8 parts; defoaming agent: 0.1-0.15 parts; dispersant: 0.1-0.15 parts; titanium white: 0.4-0.6 parts; kaolin: 2.5-3 parts; 10K cellulose: 0.2-0.25 parts; 250HHBR cellulose: 0.4-0.5 parts; ammonia water: 0.03-0.05 parts; bactericide: 0.1-0.15 parts; dodecanol ester: 0.5-0.6 parts; styrene-acrylic emulsion: 13-15 parts; 8% protective glue dispersion: 10-11 parts; and quartz sand: 50-55 parts, the particle size of the quartz sand being 80-120 mesh.

[0013] As an embodiment of the second aspect, the sand-packed sand granulation solution comprises, by weight parts: deionized water: 92-95 parts; bactericide: 0.05-0.06 parts; protective glue powder: 5-5.2 parts; and protective glue suspending agent: 0.2-0.25 parts.

[0014] In a third aspect, the application further discloses a preparation method of the high-suspension sand-containing continuous phase fluid composition, comprising the following steps: providing raw materials, wherein each raw material comprises the following components in parts by weight: deionized water 10-15 parts; bactericide 0.5-0.7 parts; xanthan gum 0.02-0.03 parts; magnesium lithium silicate 0.24-0.3 parts; defoaming agent 0.3-0.5 parts; preservative 0.3-0.5 parts; ethylene glycol 2-2.5 parts; dodecanol ester 2-3 parts; continuous phase emulsion 65-75 parts; associated thickening agent 0.2-0.3 parts, and quartz sand 8-15 parts, wherein the particle size of the quartz sand is 80-120 mesh; mixing the deionized water and the bactericide, stirring, then adding the xanthan gum, the magnesium lithium silicate, the defoaming agent and the preservative, and uniformly mixing to obtain a first mixed solution; adding the ethylene glycol, the dodecanol ester and the continuous phase emulsion into the first mixed solution, dispersing, then adding the associated thickening agent to obtain a second mixed solution; and adding the quartz sand with a particle size of 80-120 mesh into the second mixed solution, and dispersing to obtain the high-suspension sand-containing continuous phase fluid composition.

[0015] As an embodiment of the third aspect, the mixing the deionized water and the bactericide, stirring, then adding the xanthan gum, the magnesium lithium silicate, the defoaming agent and the preservative, and uniformly mixing to obtain a first mixed solution comprises: adding the deionized water and the bactericide into a dispersing tank, stirring at a rotating speed of 400-500 r / min, then adding the xanthan gum, the magnesium lithium silicate, the defoaming agent and the preservative, and increasing the rotating speed to 1200-1500 r / min, and dispersing for 20-30 minutes.

[0016] As an embodiment of the third aspect, the adding the ethylene glycol, the dodecanol ester and the continuous phase emulsion into the first mixed solution, dispersing, then adding the associated thickening agent to obtain a second mixed solution comprises:

[0017] adjusting the rotating speed to 800-1000 r / min, then adding the ethylene glycol, the dodecanol ester and the continuous phase emulsion, and dispersing for 5-8 minutes.

[0018] As an embodiment of the third aspect, the adding the quartz sand with a particle size of 80-120 mesh into the second mixed solution, and dispersing to obtain the high-suspension sand-containing continuous phase fluid composition comprises:

[0019] adjusting the rotating speed to 500-600 r / min, then slowly adding the quartz sand with a particle size of 80-120 mesh into the dispersing tank, and dispersing for 5-10 minutes to obtain the high-suspension sand-containing continuous phase fluid composition.

[0020] The embodiment of the application has at least the following beneficial effects:

[0021] The high-suspension sand-containing continuous phase fluid composition according to the embodiment of the present application greatly improves the filler anti-settling performance of the system while ensuring the fluidity by compounding xanthan gum, magnesium lithium silicate and a hydrophobically modified alkali-swellable associative thickener. The water dispersion of magnesium lithium silicate provides a very low shear viscosity, which is the main function of the suspension aid for suspending quartz sand. Meanwhile, the water dispersion of the material has high transparency and has little effect on the color of the color dots. However, if magnesium lithium silicate is used alone, in order to achieve the suspension performance of quartz sand, the overall low shear viscosity of the continuous phase will be too high, resulting in gelation and greatly reduced fluidity, which is not conducive to subsequent pipeline transportation and dispersion in the granulation liquid. Therefore, a small amount of magnesium lithium silicate is replaced by xanthan gum which has excellent fluidity and still has a relatively high low shear viscosity. Since xanthan gum is an anionic polysaccharide, its anionic properties can synergize with the cage structure of magnesium lithium silicate to act on the continuous phase system, solving the contradiction between suspension and fluidity. In addition, the use of only these two rheological aids still does not meet the viscosity value of the semi-finished continuous phase. In order to ensure the appropriate viscosity of the continuous phase, a hydrophobically modified alkali-swellable associative thickener is added to adjust the final viscosity of the continuous phase with a high emulsion ratio. The composition has good fluidity and can keep the quartz sand from settling. DETAILED DESCRIPTION

[0022] The technical solution of the high-suspension sand-containing continuous phase fluid composition according to the embodiment of the present application is described below.

[0023] In order to better understand the high-suspension sand-containing continuous phase fluid composition according to the embodiment of the present application, the technical problem to be solved by the present application is first described.

[0024] As described above, the viscosity and suspension of the continuous phase of the current sand-packed multi-color coating semi-finished product are not well adjusted, and sedimentation occurs when it is left still, thereby affecting the stability of the semi-finished product. After analysis, although this semi-finished product sprayed on the wall surface plays a synergistic role, the continuous phase quartz sand of this formula system has a sedimentation problem. If larger particle quartz sand of 80-120 mesh is used, although the sand gravel on the sprayed plate is more obvious, the viscosity and suspension of the continuous phase of the semi-finished product are not well adjusted, and sedimentation occurs when it is left still, thereby affecting the stability of the semi-finished product. If the viscosity is greatly increased, the fluidity of the continuous phase will be affected, thereby affecting the pipeline transportation of the semi-finished product. On the contrary, if 120 mesh-160 mesh quartz sand is used, the sprayed plate effect will not be obvious.

[0025] To solve the above technical problem, the present application provides a high-suspension sand-containing continuous phase fluid composition. This high-suspension sand-containing continuous phase fluid composition has high suspension, good fluidity, can ensure that the quartz sand does not settle, and is uniformly dispersed, and the water-based sand-packed multi-color coating prepared has a strong texture and stereoscopic effect.

[0026] The high-suspension sand-containing continuous phase fluid composition and the preparation method thereof are described below.

[0027] The high-suspension sand-containing continuous phase fluid composition according to the embodiment of the application comprises, by weight: deionized water: 10-15 parts, for example, 11 parts, 12 parts, 13 parts, or 14 parts, etc.; bactericide: 0.5-0.7 parts, for example, 0.52 parts, 0.54 parts, 0.56 parts, 0.58 parts, 0.6 parts, 0.62 parts, 0.64 parts, 0.66 parts, or 0.68 parts, etc.; xanthan gum: 0.02-0.03 parts; magnesium lithium silicate: 0.24-0.3 parts, for example, 0.25 parts, 0.26 parts, 0.27 parts, 0.28 parts, or 0.29 parts, etc.; defoaming agent: 0.3-0.5 parts, for example, 0.32 parts, 0.34 parts, 0.36 parts, 0.38 parts, 0.4 parts, 0.42 parts, 0.44 parts, 0.46 parts, or 0.48 parts, etc.; preservative: 0.3-0.5 parts, for example, 0.32 parts, 0.34 parts, 0.36 parts, 0.38 parts, 0.40 parts, 0.42 parts, 0.44 parts, 0.46 parts, or 0.48 parts, etc.; ethylene glycol: 2-2.5 parts, for example, 2.1 parts, 2.2 parts, 2.3 parts, or 2.4 parts, etc.; dodecanol ester: 2-3 parts, for example, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts, 2.5 parts, 2.6 parts, 2.7 parts, 2.8 parts, or 2.9 parts, etc.; continuous phase emulsion: 65-75 parts, for example, 66 parts, 67 parts, 68 parts, 69 parts, 70 parts, 71 parts, 72 parts, 73 parts, or 74 parts, etc.; associative thickening agent: 0.2-0.3 parts, for example, 0.21 parts, 0.22 parts, 0.23 parts, 0.24 parts, 0.25 parts, 0.26 parts, 0.27 parts, 0.28 parts, or 0.29 parts, etc.; and quartz sand: 8-15 parts, for example, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, or 14 parts, etc., the particle size of the quartz sand being 80-120 mesh, for example, 90 mesh, 100 mesh, or 110 mesh.

[0028] The high-suspension sand-containing continuous phase fluid composition (referred to as continuous phase) of the embodiment of the present application is compounded with xanthan gum, magnesium lithium silicate and hydrophobically modified alkali-swellable associative thickener (referred to as TT935 thickener), which greatly improves the filler anti-settling performance of the system, while ensuring the fluidity. The water dispersion of magnesium lithium silicate provides a very low shear viscosity, which becomes the main functional suspension aid for suspending quartz sand, and the water dispersion of the material has high transparency and little effect on the color of the color dots. However, if magnesium lithium silicate is used alone, in order to achieve the suspension performance of quartz sand, the overall low shear viscosity of the continuous phase will be too high, leading to gelation and greatly reducing the fluidity, which is not conducive to subsequent pipeline transportation and dispersion in the granulation liquid. Therefore, a small amount of magnesium lithium silicate is replaced with xanthan gum, which has excellent fluidity and still has a relatively high low shear viscosity. Since xanthan gum is an anionic polysaccharide, its anionic properties can synergize with the cardo structure of magnesium lithium silicate to act on the continuous phase system, solving the contradictory problem of suspension and fluidity. However, using only these two rheological aids still does not meet the viscosity value of the semi-finished continuous phase, in order to ensure the appropriate viscosity of the continuous phase, a hydrophobically modified alkali-swellable associative thickener is added to adjust the final viscosity of the continuous phase with a high emulsion ratio.

[0029] Therefore, due to the excellent suspension and fluidity of the continuous phase, it can stably suspend 80-120 mesh quartz sand, and stably disperse it without settling to the bottom. After mixing the dispersed phase and the granulation liquid, the prepared water-based sand bag sand multi-color coating has obvious texture and quality on the spray board, and the appearance decoration effect is higher than the traditional water-based sand stone simulation.

[0030] In an embodiment of the present application, the ratio of xanthan gum and magnesium lithium silicate is 1:(8-12). For example, the ratio of xanthan gum and magnesium lithium silicate can be 1:8, 1:9, 1:10, 1:11 or 1:12, etc. Among them, the viscosity range of xanthan gum is based on its 2% water dispersion, the Brookfield viscosity is between 11000 cP-12000 cP, for example, it can be 11100 cP, 11200 cP, 11300 cP, 11400 cP, 11500 cP, 11600 cP, 11700 cP, 11800 cP or 11900 cP, etc., the Stormer viscosity is between 70KU-80KU, for example, it can be 71KU, 72KU, 73KU, 74KU, 75KU, 76KU, 77KU, 78KU or 79KU, etc. The viscosity range of magnesium lithium silicate is based on its 2% water dispersion, the Brookfield viscosity is between 5000 cP-6000 cP, for example, it can be 5100 cP, 5200 cP, 5300 cP, 5400 cP, 5500 cP, 5600 cP, 5700 cP, 5800 cP or 5900 cP, etc., the Stormer viscosity is between 45KU-50KU, for example, it can be 46KU, 47KU, 48KU or 49KU, etc.

[0031] Specifically, the viscosity parameters of 2% aqueous dispersions of different proportions of xanthan gum and magnesium lithium silicate were observed to observe the viscosity performance of different proportions in aqueous solution, as shown in Table 1.

[0032] Among them, xanthan gum and magnesium lithium silicate as two rheological auxiliary materials, the viscosity parameters of their respective 2% aqueous dispersion standing for 24h are as follows:

[0033] 1) Xanthan gum: BOOKFILED viscosity (6# rotor-6r / min) (referred to as Brookfield viscosity): 11000 cP; STM-IV viscosity (referred to as Stormer viscosity): 80KU.

[0034] 2) Magnesium lithium silicate: BOOKFILED viscosity (6# rotor-6r / min): 5500 cP; STM-IV viscosity: 50KU.

[0035] Table 1 Viscosity parameters of 2% aqueous dispersions of different proportions of xanthan gum and magnesium lithium silicate

[0036]

[0037] From Table 1, the flowability of the 2% aqueous dispersion is explained: when the ratio of xanthan gum and magnesium lithium silicate is 1:1 (such as Comparative Example 1), the overall viscosity is too high, although the xanthan gum does not have the obvious gelation characteristics of magnesium lithium silicate, but its high viscosity still limits the overall flowability, making it discontinuous, which is not conducive to subsequent dispersion with other semi-finished products. However, as the ratio of magnesium lithium silicate gradually increases, the flowability of the overall aqueous dispersion gradually improves, such as Examples 1-3, the Brookfield viscosity (6# rotor-6r / min) is 6700cp-7100cp, and the Stormer viscosity is 54KU-57KU. However, when the ratio of magnesium lithium silicate is too high, such as Comparative Example 4, the ratio of xanthan gum to magnesium lithium silicate is 1:15, the overall aqueous dispersion is gel-like to magnesium lithium silicate, so the flowability is again limited.

[0038] It should be noted that when the ratio of xanthan gum and magnesium lithium silicate is too high, for example, in Comparative Example 4, the overall aqueous dispersion has a low viscosity, but it is "jelly-like" as a whole, which is caused by the too dense cutting of the card house structure of magnesium lithium silicate, which can reduce the viscosity after a little shearing. However, the flowability cannot be observed by the naked eye, that is, when pouring the liquid, it is scattered into lumps of liquid and does not form a good flowability of the drawn shape. As can be seen, the ratio of xanthan gum and magnesium lithium silicate is crucial.

[0039] As can be seen from Table 1, when the ratio of xanthan gum and magnesium lithium silicate is 1:8-12, it has higher transparency, fluidity and low shear viscosity (Brookfield 6r / min viscosity), while the Stormer viscosity is relatively low, and the overall compounding formula meets the high suspension and low viscosity characteristics.

[0040] In the embodiment of the present application, the continuous phase emulsion is a pure acrylic emulsion. The pure acrylic emulsion is polymerized from acrylic ester monomers, and can form a continuous and transparent film after drying, providing excellent adhesion. As the main component of the continuous phase, it can effectively coat the dispersed phase such as pigments, quartz sand, etc., and impart uniform mechanical strength and adhesion to the coating or adhesive layer. In addition, the pure acrylic emulsion can maintain system stability, prevent the dispersed phase from settling or flocculating, and the pure acrylic emulsion is resistant to ultraviolet light and hydrolysis, and as the continuous phase, it can protect the dispersed phase components from environmental degradation, prolong the service life of the material, and is especially suitable for outdoor coatings.

[0041] In the embodiment of the present application, the associative thickener is a hydrophobically modified alkali-swellable associative thickener. This thickener realizes intelligent rheological control in the pure acrylic emulsion system through the dual mechanisms of alkali swelling and hydrophobic association, and is especially suitable for water-based formulations that require storage stability.

[0042] In the embodiment of the present application, the bactericide can be selected from one or more of isothiazolinones, such as 5-chloro-2-methyl-4-isothiazolin-3-one, benzisothiazolinone and bromonitromethanol.

[0043] In an embodiment of the present application, the defoaming agent can be selected from silica, polyether-modified siloxane, acrylate / fluorocarbon, etc. The preservative can be selected from benzisothiazolinone, zinc pyrithione, iodoallyl aminocarbamate, octenidine, etc. The present application is not limited thereto.

[0044] The preparation method of the high-suspension sand-containing continuous phase fluid composition of the embodiment of the present application is described below.

[0045] The preparation method of the high-suspension sand-containing continuous phase fluid composition of the embodiment of the present application comprises:

[0046] S10, providing raw materials.

[0047] The raw materials include, in terms of weight parts: deionized water: 10-15 parts, for example, 11 parts, 12 parts, 13 parts, or 14 parts, etc.; bactericide: 0.5-0.7 parts, for example, 0.52 parts, 0.54 parts, 0.56 parts, 0.58 parts, 0.6 parts, 0.62 parts, 0.64 parts, 0.66 parts, or 0.68 parts, etc.; xanthan gum: 0.02-0.03 parts, for example, 0.022 parts, 0.024 parts, 0.026 parts, or 0.028 parts, etc.; magnesium lithium silicate: 0.24-0.3 parts, for example, 0.25 parts, 0.26 parts, 0.27 parts, 0.28 parts, or 0.29 parts, etc.; defoaming agent: 0.3-0.5 parts, for example, 0.32 parts, 0.34 parts, 0.36 parts, 0.38 parts, 0.4 parts, 0.42 parts, 0.44 parts, 0.46 parts, or 0.48 parts, etc.; preservative: 0.3-0.5 parts, for example, 0.32 parts, 0.34 parts, 0.36 parts, 0.38 parts, 0.4 parts, 0.42 parts, 0.44 parts, 0.46 parts, or 0.48 parts, etc.; ethylene glycol: 2-2.5 parts, for example, 2.1 parts, 2.2 parts, 2.3 parts, or 2.4 parts, etc.; dodecanol ester: 2-3 parts, for example, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts, 2.5 parts, 2.6 parts, 2.7 parts, 2.8 parts, or 2.9 parts, etc.; continuous phase emulsion: 65-75 parts, for example, 66 parts, 67 parts, 68 parts, 69 parts, 70 parts, 71 parts, 72 parts, 73 parts, or 74 parts, etc.; associative thickener: 0.2-0.3 parts, for example, 0.21 parts, 0.22 parts, 0.23 parts, 0.24 parts, 0.25 parts, 0.26 parts, 0.27 parts, 0.28 parts, or 0.29 parts, etc.; and quartz sand: 8-15 parts, for example, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, or 14 parts, etc., the particle size of the quartz sand being 80-120 mesh.

[0048] S20, mixing the deionized water and the bactericide, stirring, then adding the xanthan gum, the magnesium lithium silicate, the defoaming agent, and the preservative, and mixing uniformly to obtain a first mixed solution;

[0049] S30, adding the ethylene glycol, the dodecanol ester, and the continuous phase emulsion into the first mixed solution, dispersing, then adding the associative thickener to obtain a second mixed solution;

[0050] S40, adding the quartz sand with a particle size of 80-120 mesh into the second mixed solution, dispersing to obtain the high-suspension sand-containing continuous phase fluid composition.

[0051] The preparation method of the high-suspension sand-containing continuous phase fluid composition of the embodiment has a simple preparation process, and the high-suspension sand-containing continuous phase fluid composition prepared by the method has good suspension performance, which is beneficial to realizing the storage stability of the quartz sand in the finished paint.

[0052] In an embodiment of the present application, the deionized water and the bactericide are added into the dispersion tank, and stirred at a rotation speed of 400 r / min-500 r / min, then the xanthan gum, the magnesium lithium silicate, the defoaming agent and the preservative are added, and the rotation speed is increased to 1200 r / min-1500 r / min, for example, it can be 1300 r / min or 1400 r / min, etc., and dispersed for 20-30 min, for example, it can be 22 min, 24 min, 26 min or 28 min, etc.

[0053] In an embodiment of the present application, the ethylene glycol, the dodecanol ester and the continuous phase emulsion are added into the first mixed solution, and dispersed, then the associated thickening agent is added to obtain a second mixed solution, comprising: adjusting the rotation speed to 800 r / min-1000 r / min, then adding the ethylene glycol, the dodecanol ester and the continuous phase emulsion, and dispersing for 5-8 min.

[0054] In an embodiment of the present application, the quartz sand with a particle size of 80-120 mesh is added into the second mixed solution, and dispersed to obtain a high-suspension sand-containing continuous phase fluid composition, comprising: adjusting the rotation speed to 500 r / min-600 r / min, for example, it can be 510 r / min, 520 r / min, 530 r / min, 540 r / min, 550 r / min, 560 r / min, 570 r / min, 580 r / min or 590 r / min, etc., slowly adding the quartz sand with a particle size of 80-120 mesh in the dispersion tank, and dispersing for 5-10 min to obtain the high-suspension sand-containing continuous phase fluid composition.

[0055] The high-suspension sand-containing continuous phase fluid composition of the present application can be applied to paint, therefore, the present application also discloses a water-based sand-encapsulated sand multi-color paint. The water-based sand-encapsulated sand multi-color paint comprises, by weight parts: a dispersed phase: 65-70 parts, for example, it can be 66 parts, 67 parts, 68 parts or 69 parts, etc., a continuous phase: 10-15 parts, for example, it can be 11 parts, 12 parts, 13 parts or 14 parts, etc., and a sand-encapsulated sand granulation solution: 15-20 parts, for example, it can be 16 parts, 17 parts, 18 parts or 19 parts, etc. The continuous phase is the high-suspension sand-containing continuous phase fluid composition described in the above embodiments.

[0056] Since the continuous phase has excellent suspension and flow properties, it can stably suspend 80-120 mesh quartz sand, and stably disperse it without sinking to the bottom. After mixing the dispersed phase and the granulation solution, the prepared water-based sand-encapsulated sand multi-color paint has obvious spray plate effect and texture, and has a higher stone simulation degree compared to traditional water-sand stone.

[0057] In an embodiment of the present application, the dispersing phase can include, by weight parts: deionized water: 18-22 parts, for example, 19 parts, 20 parts, or 21 parts, etc.; preservative: 0.15-0.2 parts, for example, 0.16 parts, 0.17 parts, 0.18 parts, or 0.19 parts, etc.; ethylene glycol: 0.3-0.8 parts, for example, 0.16 parts, 0.17 parts, 0.18 parts, or 0.19 parts, etc.; antifoaming agent: 0.1-0.15 parts, for example, 0.11 parts, 0.12 parts, 0.13 parts, or 0.14 parts, etc.; dispersant: 0.1-0.15 parts, for example, 0.11 parts, 0.12 parts, 0.13 parts, or 0.14 parts, etc.; titanium white: 0.4-0.6 parts, for example, 0.42 parts, 0.44 parts, 0.46 parts, 0.48 parts, 0.5 parts, 0.52 parts, 0.54 parts, 0.56 parts, or 0.58 parts, etc.; kaolin: 2.5-3 parts, for example, 2.6 parts, 2.7 parts, 2.8 parts, or 2.9 parts, etc.; 10K cellulose: 0.2-0.25 parts, for example, 0.21 parts, 0.22 parts, 0.23 parts, or 0.24 parts, etc.; 250HHBR cellulose: 0.4-0.5 parts, for example, 0.42 parts, 0.44 parts, 0.46 parts, or 0.48 parts, etc.; ammonia water: 0.03-0.05 parts, for example, 0.032 parts, 0.034 parts, 0.036 parts, 0.038 parts, 0.04 parts, 0.042 parts, 0.044 parts, 0.046 parts, or 0.048 parts, etc.; bactericide: 0.1-0.15 parts, for example, 0.11 parts, 0.12 parts, 0.13 parts, or 0.14 parts, etc.; dodecanol ester: 0.5-0.6 parts, for example, 0.52 parts, 0.54 parts, 0.56 parts, or 0.58 parts, etc.; styrene-acrylic emulsion: 13-15 parts, for example, 13.5 parts, 14 parts, or 14.5 parts, etc.; 8% protective colloid dispersion: 10-11 parts, for example, 10.2 parts, 10.4 parts, 10.6 parts, or 10.8 parts, etc.; and quartz sand: 50-55 parts, for example, 51 parts, 52 parts, 53 parts, or 54 parts, etc. Among them, the particle size of the quartz sand is 80-120 mesh. The dispersing phase of the present application is the color point in the multicolor paint semi-finished product, and the color point prepared by the component and the content has a Brinell viscosity of about 85000 at 6 revolutions and 9700 at 60 revolutions. The component and the corresponding content are more conducive to the smooth progress of the color point granulation process, and the preparation of medium-sized color points.

[0058] In one embodiment of the present application, the sand bag sand granulation solution comprises, by weight parts: deionized water: 92-95 parts, for example, it can be 93 parts or 94 parts, etc.; bactericide: 0.05-0.06 parts, for example, it can be 0.052 parts, 0.054 parts, 0.056 parts or 0.058 parts, etc.; protective glue powder: 5-5.2 parts, for example, 5.1 parts; and protective glue suspending agent: 0.2-0.25 parts, for example, 0.21 parts, 0.22 parts, 0.23 parts or 0.24 parts, etc. The KU value of the sand bag sand granulation solution of the embodiment of the present application is 53, the Brookfield viscosity 3 rotor 6 turns, the viscosity 1200, 60 turns viscosity 170. The components and component contents compared with the existing ordinary granulation solution formula can make the dispersion phase color point granulation more smooth.

[0059] The performance of the high-suspension sand-containing continuous phase fluid composition and the water-based sand bag sand multi-color paint based on the high-suspension sand-containing continuous phase fluid composition of the embodiment of the present application will be further described below in combination with specific examples.

[0060] The proportions in the seven examples in Table 1 above are applied in the sand-containing continuous phase, and the amount of TT935 thickener in the sand-containing continuous phase is preliminarily set to 0.3 parts. The amount of 80-120 mesh quartz sand is set to 10 parts, and the total amount of xanthan gum and magnesium lithium silicate is set to 0.33 parts. The influence of different proportions of rheological additives in the semi-finished product on the suspension performance of quartz sand is tested. Among them, the examples of different xanthan gum / magnesium lithium silicate complex ratios are shown in Table 2, and the anti-settling effect of different xanthan gum / magnesium lithium silicate complex ratios on quartz sand is shown in Table 3.

[0061] Table 2 Formulas corresponding to different xanthan gum / magnesium lithium silicate complex ratios

[0062]

[0063]

[0064] Table 3 Anti-settling effect test table of quartz sand corresponding to different xanthan gum / magnesium lithium silicate complex ratios

[0065]

[0066] As can be seen from Tables 2 and 3 above, under the same amount, the viscosity parameters of the semi-finished product and the settling of the quartz sand are different when the ratio of xanthan gum and magnesium lithium silicate is different, and the fluidity is also different. In the control group experiment without using xanthan gum and magnesium lithium silicate complex (Comparative Example 5), it can be clearly seen that although the fluidity of the sand-containing continuous phase is normal, the low shear viscosity (24h Brookfield 6r / min viscosity / cP) is too low, and the quartz sand cannot be stably suspended in the system.

[0067] By introducing xanthan gum and magnesium lithium silicate in the continuous phase system, for example, from Comparative Example 6 to Comparative Example 9, the Brookfield 6r / min viscosity / cP is obviously improved, but when the xanthan gum content is high (Comparative Examples 6-8), the KU viscosity is high, and although the whole can suspend quartz sand, the fluidity is very poor. As a semi-finished product, the actual operation is very difficult during later pipeline transportation and other semi-finished product dispersion. When the proportion of magnesium lithium silicate is gradually increased, the fluidity is relieved, and when the ratio of xanthan gum to magnesium lithium silicate is 1:8-12 (i.e., Examples 7-9), the KU viscosity parameter of the sand-containing continuous phase is relatively ideal, the fluidity is good, and the Brookfield 6r / min viscosity parameter is sufficient to make 80-120 mesh quartz sand not settle or settle very slightly within a week, and the sand is stably dispersed, basically meeting the storage requirements of semi-finished products. Therefore, under this proportion, it is suitable for preparing a high-suspension sand-containing continuous phase.

[0068] According to the water-based sand-containing semi-finished product continuous phase corresponding to the formula provided above, the prepared dispersion phase semi-finished product and protective glue granulation liquid are mixed, and the ratio of dispersion phase: continuous phase: granulation liquid is 68:12:20, to prepare a water-based multi-color sand-containing finished product, and test the corresponding performance effects of the finished product of the examples and comparative examples. See Table 4.

[0069] Table 4 Test results of water-based multi-color sand-containing finished product

[0070]

[0071] Among them, the ratio in the examples and comparative examples is the ratio of xanthan gum and magnesium lithium silicate in the semi-finished product examples and comparative examples in Table 2;

[0072] The dispersion phase 24h Brookfield 6r / min viscosity / cP is about 85000cP, and the granulation color point diameter is about 2-4mm.

[0073] The sand-containing granulation liquid 24h Stormer viscosity / KU is about 52-55KU, and the coating-4 cup viscosity is about 40 seconds.

[0074] Among them, the comparison of the storage, construction, and board efficiency of the water-based sand-containing multi-color finished product is shown in Table 5 as follows:

[0075] Table 5 Comparison data table of water-based sand-containing multi-color finished product storage, construction, and board efficiency.

[0076]

[0077]

[0078] It should be noted that due to the storage and sedimentation of a part of the quartz sand in the system of some examples, the construction spraying is immediately sprayed after the finished product is prepared for 24h to avoid the quartz sand from settling and being unable to be uniformly dispersed again.

[0079] From Table 5 above, it can be seen that the water-based sand-packed sand multi-color paint product has great differences in storage, construction and spraying board efficiency due to different collocations of rheological additives in the system. As shown in Table 5, by comparing Comparative Example 10 with Comparative Examples 11-14 and Examples 7-9, it can be seen that when xanthan gum and lithium magnesium silicate are not used, the storage performance is greatly limited by the settlement of quartz sand, and other aspects such as the Stormer viscosity, product fluidity, spraying construction and traditional water-sand system are not different. In Comparative Examples 11-13, when the proportion of xanthan gum is high, the viscosity of the system is high, and the spraying construction is not smooth, but the quartz sand does not settle at the bottom. When the proportion of lithium magnesium silicate is high, such as in Examples 7-9 and Comparative Example 14, the viscosity decreases, thereby improving the smoothness of the spraying construction. In Comparative Example 14, the quartz sand only slightly settles at the bottom, and the overall sand-packed sand paint of Examples 7, 8 and 9, whether it is a semi-finished product containing sand continuous phase or a finished product, has the most balanced comprehensive performance. When the xanthan gum: lithium magnesium silicate = 1:8-12 in Example 8, the overall comprehensive performance is optimal.

[0080] The following is a comparison of the use of other types of rheological additives, under the same dosage conditions as Example 8, to observe the related performance of the sand-containing continuous phase semi-finished product and the related performance of the finished product. Among them, the semi-finished product refers to the continuous phase. The finished product refers to the sand-packed sand multi-color paint.

[0081] Table 6 Comparison of the performance of semi-finished products and finished products prepared by using the proportion corresponding to Example 8 and other rheological additives

[0082]

[0083]

[0084]

[0085] From Table 6, it can be seen that the use of cellulose-based rheological additives has the characteristic of significantly higher viscosity, such as Comparative Examples 15-17, and the fluidity of the semi-finished product and the fluidity and construction of the finished product are limited. When sodium-based bentonite is used alone, such as Comparative Example 19, although the viscosity is low, the 2% water dispersion has poor low viscosity (i.e. suspension) and cannot suspend the quartz sand. When alkali-swollen non-associative thickener ASE-60 is used, such as Comparative Example 18, the effect is close to that of Example 8, but the fluidity and construction are slightly worse.

[0086] In summary, from the effects of the comparative examples, the comprehensive performance of the high-suspension sand-containing continuous phase and the water-based sand-packed sand multi-color paint of Example 8 of the present application is the best.

[0087] It should be noted that in the specific embodiments of the present application, the components and contents not mentioned are within the scope described in the above examples, and the present application is not listed one by one.

[0088] The preparation method of the high-suspension-sand continuous phase and the application of the water-based sand-packed sand multi-color coating of the present application are not limited to the above-mentioned embodiments. It should be pointed out that for ordinary skilled persons in the technical field, some changes, improvements and decorations can be made without departing from the principles of the present application. The technical solutions after the changes, improvements and decorations should also be considered as the protection scope of the present application.

Claims

1. A highly suspended sand-containing continuous phase fluid composition, characterized in that, Included by weight: Deionized water: 10-15 parts; Fungicide: 0.5-0.7 parts; Xanthan gum: 0.02-0.03 parts; Lithium magnesium silicate: 0.24-0.3 parts; Defoamer: 0.3-0.5 parts; Preservative: 0.3-0.5 parts; Ethylene glycol: 2-2.5 parts; Dodecyl ester: 2-3 parts; Continuous phase emulsion: 65-75 parts; Associative thickener: 0.2-0.3 parts, and Quartz sand: 8-15 parts, wherein the particle size of the quartz sand is 80-120 mesh.

2. The composition according to claim 1, characterized in that, The ratio of xanthan gum to lithium magnesium silicate is 1:(8-12).

3. The composition according to claim 1, characterized in that, The viscosity range of the xanthan gum is based on its 2% aqueous dispersion, with a Brookfield viscosity between 11,000 cP and 12,000 cP and a Stormer viscosity between 70 KU and 80 KU.

4. The composition according to claim 1, characterized in that, The viscosity range of the lithium magnesium silicate is based on its 2% aqueous dispersion, with a Brookfield viscosity between 5000 cP and 6000 cP and a Stormer viscosity between 45 KU and 50 KU.

5. The composition according to claim 1, characterized in that, The continuous phase emulsion is a pure acrylic emulsion.

6. The composition according to claim 1, characterized in that, The associative thickener is a hydrophobically modified alkali-swellable agent.

7. A water-based sand-textured multicolor coating, characterized in that, Included by weight: Dispersed phase: 65-70 parts; Continuous phase: 10-15 parts, wherein the continuous phase is the highly suspended sand-containing continuous phase fluid composition according to any one of claims 1-6; and Sand-filled granulation solution: 15-20 parts.

8. The water-based sand-textured multicolor coating according to claim 7, characterized in that, The dispersed phase comprises, by weight, the following: Deionized water: 18-22 parts; Preservative: 0.15-0.2 parts; Ethylene glycol: 0.3-0.8 parts; Defoamer: 0.1-0.15 parts; Dispersant: 0.1-0.15 parts; Titanium dioxide: 0.4-0.6 parts; Kaolin: 2.5-3 parts; 10K cellulose: 0.2-0.25 parts; 250HHBR cellulose: 0.4-0.5 parts; Ammonia solution: 0.03-0.05 parts; Fungicide: 0.1-0.15 parts; Dodecyl alcohol ester: 0.5-0.6 parts; Styrene-acrylic emulsion: 13-15 parts; 8% protective colloid dispersion: 10-11 parts; and Quartz sand: 50-55 parts, wherein the particle size of the quartz sand is 80-120 mesh.

9. The water-based sand-textured multicolor coating according to claim 7 or 8, characterized in that, The sand-bag granulation solution comprises, by weight, the following: Deionized water: 92-95 parts; Fungicide: 0.05-0.06 parts; Protective adhesive powder: 5-5.2 parts; and Protective colloid suspension: 0.2-0.25 parts.

10. A method for preparing a highly suspended sand-containing continuous phase fluid composition, characterized in that, include: The raw materials provided include, by weight, the following: deionized water: 10-15 parts; bactericide: 0.5-0.7 parts; xanthan gum: 0.02-0.03 parts; lithium magnesium silicate: 0.24-0.3 parts; defoamer: 0.3-0.5 parts; preservative: 0.3-0.5 parts; ethylene glycol: 2-2.5 parts; dodecyl alcohol ester: 2-3 parts; continuous phase emulsion: 65-75 parts; associative thickener: 0.2-0.3 parts; and quartz sand: 8-15 parts, wherein the quartz sand has a particle size of 80-120 mesh. The deionized water and the bactericide are mixed and stirred. Then, the xanthan gum, the magnesium lithium silicate, the defoamer and the preservative are added and mixed well to obtain the first mixture. Ethylene glycol, dodecyl alcohol ester, and continuous phase emulsion are added to the first mixture, dispersed, and then the associative thickener is added to obtain a second mixture. The quartz sand with a particle size of 80-120 mesh is added to the second mixture and dispersed to obtain the highly suspended sand-containing continuous phase fluid composition.

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