89 results about "Fluorocarbon coating" patented technology

The invention belongs to the technical field of composite materials and radomes, and particularly relates to a layer structure of a radome body and a manufacturing method. The skin comprises a first skin layer, an interlayer, a second skin layer and a polyvinyl fluoride film layer which are sequentially arranged from top to bottom. Through collaborative design of a micro-nano composite structure and a low-surface-energy material, a self-cleaning surface skin layer with super-hydrophobicity, high wave transmission and weather resistance is constructed. Compared with a traditional fluorocarbon coating, the wave transmission rate is 60-70% and is improved by more than 25%, the signal transmission loss is remarkably reduced, and the harsh requirement for the wave transmission performance of the antenna housing is met. The cleaning cost of a traditional antenna housing can be saved by more than 80%, especially for high-altitude and complex-structure antenna housings, high-altitude operation or special equipment is not needed, and the maintenance safety risk is reduced. The replacement frequency of the radome caused by aging and abrasion of the coating can be reduced, and the overall life cycle cost of equipment is reduced.

This invention relates to the field of coating technology, specifically to a low-temperature curing fluorocarbon coating for aluminum alloys and its preparation method. The invention involves adding eugenol, potassium carbonate, and decafluorobiphenyl to obtain modified biphenyl; then adding m-chloroperoxybenzoic acid to prepare a reinforcing agent. Next, γ-epoxypropoxypropyltrimethoxysilane is used to surface modify linear silica fillers, lamellar silica fillers, and dendritic silica fillers to obtain epoxy-modified wear-resistant fillers. Epoxy resin and epoxy-modified wear-resistant fillers are added to xylene, ultrasonically stirred, and then fluorocarbon resin, reinforcing agent, and curing agent are added, followed by continued ultrasonic stirring to obtain the fluorocarbon coating. The fluorocarbon coating prepared by this invention exhibits excellent adhesion, wear resistance, and mechanical strength, thus showing broad application prospects in the field of coating technology.

The invention discloses an ultrathin flexible ceramic plate as well as a preparation method and application thereof. The ultrathin flexible ceramic plate is prepared from the following raw materials: cordierite powder, PAN (Polyacrylonitrile) fiber, polysiloxane, nano Al2O3, aluminum dihydrogen phosphate sol and a fluorocarbon resin composite coating. The preparation method comprises the following steps: 1) pretreatment; 2) freezing and casting; 3) heat treatment and carbonization; 4) fluorocarbon coating process and hot isostatic pressing; the preparation method comprises the following steps: firstly, carrying out freeze casting to obtain a ceramic plate matrix, and carrying out hot pressed sintering on the ceramic plate matrix to carbonize PAN fibers into carbon fibers to obtain high-strength single-layer ceramic sheets and composite ceramic sheets, so as to obtain the flexible ceramic plate. The obtained ultra-thin flexible ceramic plate is high in strength and toughness, resistant to high temperature and good in sound insulation and heat insulation effect, through precise configuration and chemical coupling of the components, the problem that a ceramic material is crisp if being strong and weak if being thin is solved, and a new scheme is provided for industrialization of flexible ceramics.

This invention belongs to the field of resin synthesis technology and discloses a phase change energy storage and thermal insulation fluorocarbon coating and its preparation method. The coating comprises 23-25% PVDF fluorocarbon resin, 8-9% acrylic resin, 10-20% phase change material, and a specific composite solvent system. Through a stepwise dispersion process, the inorganic filler is first ground to ≤15μm, and then the phase change material is slowly dispersed under controlled temperature conditions, solving the technical problems of easy breakage and unstable dispersion of phase change material in solvent-based systems. This invention innovatively combines the thermal management capabilities of phase change material with the extreme durability of solvent-based fluorocarbon resin, and with optimized formulation and refined dispersion process, achieves excellent and long-lasting dynamic thermal insulation performance, providing a high-performance coating solution for building energy conservation and emission reduction. By maintaining the integrity of the PCM microcapsule structure in the solvent-based system, the coating is endowed with dynamic temperature buffering capability, matching the phase change functional lifespan with the weather resistance lifespan of the fluorocarbon resin.

The invention discloses a flexible modified water-based fluorocarbon concrete protective coating and a preparation method thereof, and belongs to the field of coatings. Water-based fluorocarbon resin main film-forming matter resin containing 20% of active hydroxyl is selected, the flexibility of a coating is provided by adding a self-made SiO2 modified flexible chain segment-containing prepolymer, and the flexibility of the resin is enhanced by introducing flexible chain segments such as polyester polyol and the like into the flexible prepolymer; meanwhile, the SiO2 inorganic part is introduced, so that the strength of the coating can be enhanced, the antifouling performance of the surface of the fluorocarbon coating is further enhanced, and meanwhile, the ultraviolet aging resistance of the coating is further improved by adding the inorganic nano ultraviolet light absorber into the polymer. A water-dispersed isocyanate curing agent is selected as a curing agent to realize further cross-linking and film forming of the space of the coating, and finally, the flexible modified water-based fluorocarbon concrete protective coating with super weather resistance, dirt resistance and high elongation at break is prepared and can provide more durable anti-corrosion protection for the surface of concrete.

The invention relates to the technical field of luminescent coatings, in particular to modified isocyanate resin containing aggregation-induced emission groups as well as a preparation method and application of the modified isocyanate resin. According to the preparation method, tromethamine is adopted to introduce tetraphenyl ethylene-isothiocyanate containing an aggregation-induced emission group into 4, 4 '-dicyclohexylmethane diisocyanate, so that the modified isocyanate resin is obtained. Luminescent paint can be obtained by using the modified isocyanate resin as a curing agent. The fluorocarbon coating prepared by taking the modified isocyanate resin as a curing agent and matching the modified isocyanate resin with fluorocarbon resin has the advantages of luminescence property, excellent weather resistance and excellent stain resistance.

The utility model discloses a kind of high-stability corrosion-resistant single-point mooring ultra-thin wall bearing devices, including outer ring body, reinforcing support plate inner wall middle position is equipped with oil filler, and reinforcing support plate inside upper and lower edge is equipped with splicing slot, splicing slot inner wall is inserted and is installed with mounting block, and mounting block one side is rotatably embedded and installed with sliding bead, mounting block and reinforcing support plate one side are inserted and installed with first fixed bolt.This kind of high-stability corrosion-resistant single-point mooring ultra-thin wall bearing device can be side supported by reinforcing support plate, and can be stably rotated by sliding bead, mounting block, and the effect is good, and high-efficiency corrosion-resistant treatment can be carried out by the zirconia ceramic ball material quality of ball and the double-layer structure of nano ceramic coating and organic fluorocarbon coating coating, can adapt to complex marine environment, and high-efficiency heat dissipation can be carried out while being fixed by bolt seat, heat-conducting block and second fixed bolt, and the effect is good.

The utility model relates to the technical field of mixer blade, especially to an explosion -proof submersible mixer blade, including the mounting bush, the mounting bush is the cylinder structure, the surface of mounting bush is equipped with a plurality of mounting holes for connecting with motor shaft, the mounting hole is along the both ends of mounting bush symmetry distribution setting, a plurality of blades are fixedly arranged on the outer wall of mounting bush, the end of blade is provided with curved end head. This scheme provides high -strength support through stainless steel base layer, polyurethane buffer layer absorbs fluid impact vibration, aluminium alloy reinforcing framework promotes compression resistance and torsion resistance, carbon fiber surface layer ensures form stability, fluorocarbon coating enhances corrosion resistance, the synergistic effect of the multiple materials makes the blade effectively resist deformation, fracture and corrosion in high -speed rotation or high resistance fluid environment, greatly prolongs the service life, the spiral head and the positioning block structure set up on the blade surface can form complex turbulence in the stirring process, and the fluid mixing effect is significantly improved.

The utility model discloses a novel bailey truss which comprises a main frame body, a reinforcing rod is fixedly connected to the middle position in the main frame body, second inserting blocks are fixedly connected to the two ends of one side of the main frame body, and reinforcing strips are fixedly connected to the two ends of the side, away from the second inserting blocks, of the main frame body. Second inserting grooves are formed in the two sides of one side of the reinforcing strip. The strength layer, the composite layer and the protective layer are arranged in the bailey truss, the strength layer has excellent tensile strength and compression resistance and is suitable for various complex terrains or bearing external impact, the composite layer is arranged outside the strength layer, the weight of the bailey truss is further reduced, meanwhile, larger bearing capacity is provided, and the service life of the bailey truss is prolonged. Meanwhile, the protective layer is arranged outside the composite layer and has very high corrosion resistance, and the external fluorocarbon coating has very high high-temperature resistance, ultraviolet resistance and chemical corrosion resistance, so that the overall strength of the bailey truss is improved, and the use stability of the bailey truss is improved.

The utility model provides a kind of marine corrosion-resistant anti-vibration intelligent high-low voltage switch cabinet, including shell, the shell includes front plate, back plate, left side plate, right side plate, top plate and bottom plate, between left side plate and right side plate still be equipped with baffle, the baffle will switch cabinet inside be divided into two areas of front and back, multiple wire slots are equipped on the front and back of baffle, wire slot is evenly equidistant and is transversely parallel arrangement, shock-absorbing support is equipped between wire slot, electric appliance module is installed on shock-absorbing support;By corrosion-proof design in switch cabinet shell, shell is made of 316L stainless steel, and is coated with fluorocarbon coating etc., can effectively resist the corrosion of marine environment, prolong the service life of switch cabinet, reduce maintenance cost, and inside by setting shock-absorbing support, anti-vibration rib and reinforcing rib etc. Structure, can effectively buffer and absorb vibration energy, reduce the influence of vibration on electric element, protect the normal work of electric element, improve the reliability of switch cabinet.

The invention provides a device and a method for preparing a high-weather-resistance fluorocarbon coating through VDF soap-free emulsion polymerization. The device comprises a reaction kettle, a deionized water metering tank, a monomer storage tank, an initiator storage tank, a constant-pressure funnel and a coating preparation unit. The method comprises the following steps: preparing a resin emulsion by adopting a double-bond emulsifier dodecafluoroheptyl methacrylate and a silane coupling agent KH-550 through a soap-free emulsion polymerization process, and then adding an auxiliary agent to prepare the coating. The obtained coating is environment-friendly and free of PFOA, and the color difference is delta Elt after QUV aging is conducted for 2500 h; the hardness is greater than or equal to 2H, and the weather resistance is improved by 67% or above.

The invention relates to the technical field of navigation station escalator structures, in particular to a navigation station escalator mounting structure which comprises a truss, a bottom plate and side plates. A mechanical locking system of the snap fastener and the L-shaped connecting plate replaces traditional welding, lossless disassembly and assembly are achieved, and the hidden danger of open fire is eliminated; the cellular board and the galvanized square tube are cooperatively stressed, dependence on civil engineering precision is reduced, welding or pouring is not needed in construction through a modular fast-assembly system, a snap fastener structure supports fast overhaul, downtime is greatly shortened, the composite design of the galvanized square tube and the cellular board is combined with a fluorocarbon coating, the weight is reduced, and meanwhile the service life is prolonged. The adjusting assembly drives the screw rod to transmit through the rotary connecting shaft, stable supporting force is formed, and the installation flexibility is improved; the locking assembly achieves angle rapid locking through spring resilience, the adjusting stability is ensured by being matched with guide groove limiting, the requirements of trusses with different angles are met, the structure is safe, efficient, durable and adjustable, and the escalator installation and maintenance efficiency is remarkably improved.

The invention provides a fluorine-free high-weather-resistant coating composition for a high-barrier aluminum-containing photovoltaic back plate. The coating composition is composed of a main agent and a curing agent, wherein the main agent does not contain fluorine and comprises matrix resin, pigment, inorganic filler, an auxiliary agent and an anhydrous diluent; wherein the matrix resin comprises organic silicon modified acrylic resin, polyester resin, polyvinyl alcohol resin copolymer and epoxy resin. By introducing the specially designed organic silicon modified acrylic resin, the adhesive force and weather resistance of the coating composition to an aluminum foil and a polyester base film are improved, and the water vapor transmittance is reduced; the polyester resin with a high hydroxyl value is introduced, so that the overall flexibility of the coating is improved, the brittleness is reduced, and meanwhile, the adhesion to a substrate and the weather resistance are further improved; meanwhile, the polyvinyl alcohol resin copolymer is also introduced, so that the water vapor transmittance is further reduced. The coating composition disclosed by the invention does not contain fluorine elements, so that the environmental protection problem caused by an existing backboard fluorocarbon coating system is solved.

The utility model relates to the technical field of dredging devices, and provides a paint sand mill feed pipe dredging device which comprises a shell and a driving motor, the driving motor is installed on the surface of the shell, a dredging and scattering assembly is arranged in the shell, a rotating seat is rotationally connected to the top in the shell, and an outer gear is arranged on the outer surface of the rotating seat. A driving gear is arranged at the output end of the driving motor and engaged with the outer gear. By means of the technical scheme, the problems that in the prior art, when raw materials are fed into an existing fluorocarbon coating sand mill, the feeding pipe is often blocked, the feeding pipe is generally difficult to dredge due to the fact that the feeding pipe is narrow, the running state of the fluorocarbon coating sand mill is poor, the production efficiency is reduced, and the production cost is lowered are solved. And the labor intensity of workers is increased.

The utility model provides a kind of lightweight high-strength honeycomb core aluminum plate, belong to metal sheet field, including aluminum plate base body, the surface of aluminum plate base body is provided with the composite mechanism for improving the strength of aluminum plate base body. 3 , 8-10% lower than traditional aluminum alloy, tensile strength reaches 550-600MPa, yield strength is greater than or equal to 500MPa, meets the structural load demand, aramid paper honeycomb density is only 40-80kg / m 3 , aramid honeycomb shear strength is greater than or equal to 3MPa, effectively resist transverse load, by crushing deformation absorption impact energy, modified epoxy resin adhesive film T type peel strength is greater than or equal to 15N / cm, ensure that honeycomb core and panel long-term combination, set up carbon fiber reinforced polymer, make overall bending modulus increase 40-60%, tensile strength reaches 1500MPa, panel layer uses 7075-T6 aluminum alloy, surface hardness reaches 150HB, scratch resistance is superior to ordinary aluminum plate, polyvinylidene fluoride fluorocarbon coating QUV accelerated aging 5000h after light retention rate is greater than or equal to 85%, applicable to outdoor scene.

The present invention discloses a method for predicting the performance of nano-cerium dioxide ultraviolet shielding coatings based on machine learning optimization. This method uses experimental means to prepare and test the performance of the cerium dioxide ultraviolet shielding coating to obtain data, selects key characteristic parameters from the data, and constructs a database linking the key characteristic parameters with the performance of the ultraviolet shielding coating. A machine learning method is then used to construct a machine learning model, which is trained using the data in the database, and the optimal model is selected. During application, the cumulative particle size distribution of the nano-cerium dioxide that constitutes the coating to be tested, the surface modifier, the organic solvent, the type of fluorocarbon coating, the ratio of fluorocarbon coating to nano-cerium dioxide, and the light transmittance of the cerium dioxide dispersion are input into the selected model. This method can predict the ultraviolet shielding performance and visible light transmittance of the applied ultraviolet shielding coating. This eliminates the need for extensive screening experiments, saving time and economic costs.

The utility model discloses a corrosion-resistant galvanizing bath which comprises a galvanizing bath body, a composite layer structure is arranged on the galvanizing bath body, and the composite layer structure comprises a corrosion-resistant lining layer, a middle layer, a base layer and a corrosion-resistant outer layer. The anti-corrosion lining layer is made of a polytetrafluoroethylene material, the middle layer is made of a glass fiber reinforced epoxy resin composite material, the base layer is made of a stainless steel plate, and the anti-corrosion outer layer is made of a fluorocarbon coating. The stainless steel plate base layer has enough thickness and can provide stable shape and strength support for the whole galvanizing bath; the middle layer has relatively high strength and rigidity, and can effectively disperse stress and prevent the tank body from being deformed or damaged when bearing the pressure of a galvanizing solution and possible external impact force, so that the stability of the galvanizing tank in a long-term use process is guaranteed; the anti-corrosion lining layer and the anti-corrosion outer layer have good chemical corrosion resistance.

The present disclosure provides a photovoltaic module, and relates to the field of photovoltaic. The photovoltaic module comprises: a laminate comprising a cell layer and a backsheet glass arranged in a stack; a light reflection film layer arranged on the side of the backsheet glass close to the cell layer, for directing the light passing through the cell layer to the cell in the cell layer; wherein the light reflection film layer comprises an adhesive layer, an inner fluorocarbon coating layer, a lower PET layer, a light reflection structure layer, an upper PET layer and an outer fluorocarbon coating layer arranged in a stack on the surface of the backsheet glass. The photovoltaic module provided by the present disclosure can effectively reduce optical loss, and significantly improve the conversion efficiency and weather resistance of the photovoltaic module.

This invention discloses a high-durability, self-cleaning reflective thermal insulation coating and its preparation method. The coating is prepared using a specially designed and synthesized grafted modified silicone resin combined with fluorocarbon resin, high-reflectivity filler, and thermal insulation filler. By introducing coupled polysiloxane segments with numerous amide structures and end-capped with catechol groups into the cured segments of the fluorocarbon coating in a grafted and suspended state, highly stable microphase separation of the coating system is achieved, effectively improving the matrix density and coating adhesion. Combined with the original strong reflective thermal insulation performance, this results in ultra-high durability and self-cleaning properties. This technology has a clear mechanism of action, a simple production process, and excellent performance, making it suitable for large-scale production. It enables the coating to maintain its long-term reflective thermal insulation and temperature control performance under complex and harsh environments, which is of great significance for green and sustainable temperature control and protection of buildings and engineering structures in various complex environments.

The invention relates to a pvdf fluorocarbon coating color matching device which comprises a feeding tank, a plurality of feeding assemblies, a discharging assembly, a rotating and vibrating assembly and a nitrogen input assembly, the feeding assemblies are arranged on the lower portion of the feeding tank, the discharging assembly is arranged at the bottom of the feeding tank, the rotating and vibrating assembly is arranged at the bottom of the feeding tank, and the nitrogen input assembly is arranged on the lower portion of the feeding tank. A temperature control assembly and an ultrasonic assembly are arranged on the outer side wall of the middle of the feeding tank, the temperature control assembly is used for conducting temperature detection and cooling on the feeding tank, the ultrasonic assembly is used for conducting ultrasonic vibration on the feeding tank, a cover body is arranged on the top of the feeding tank, and a gas inlet pipe of the nitrogen input assembly is connected to the cover body. According to the color matching device for the pvdf fluorocarbon coating, the content consistency of all components in output color paste can be high, prepared coatings in different batches have no color difference, and the mixing efficiency of the color paste is improved.

The invention discloses a high-performance two-component polyurethane coating, which is prepared from a component A and a component B, the component A is prepared from the following components in parts by mass: 60 to 70 parts of fluorine-containing hydroxyl acrylic resin (OHV is equal to 120mgKOH / g), 3 to 5 parts of nano silicon dioxide, 1 to 1.5 parts of ultraviolet absorbent, 0.5 to 1 part of light stabilizer, 0.8 to 1.2 parts of dispersing agent, 0.2 to 0.5 part of flatting agent, 0.1 to 0.3 part of defoaming agent and 20 to 25 parts of solvent; the component B is prepared from the following components in parts by mass: 40 to 50 parts of HDI (hexamethylene diisocyanate) tripolymer (NCO% is equal to 21.5%), 20 to 50 parts of IPDI (isophorone diisocyanate) tripolymer (NCO% is equal to 12.0%), 1 to 2 parts of dehydrating agent and 0.02 to 0.05 part of catalyst. Compared with existing products of the same type, the high-performance two-component polyurethane coating has the advantages that through precise component compounding and nanometer enhancement, the environment-friendly property of the high-performance two-component polyurethane coating is kept, meanwhile, the weather resistance is close to that of a fluorocarbon coating, and the mechanical property is superior to that of traditional polyurethane.

The utility model belongs to civil construction equipment technical field especially relates to a civil construction support device, including base, the base is located in the side of wall, the other side of base is equipped with hinged member through welding, the hinged member is swingingly connected through connecting rod, the other side of hinged member swingingly installs support rod, the bottom of support rod swingingly installs on support base, the bottom fixed mounting of support base has rubber damping pad. This civil construction support device, hinged mechanism is combined with lock nut, spring pre -tensioning half -spherical pre -tightening spare through stud, realizes hinged ball ± 15 DEG rotation and mechanical self -locking, and the tensile force is more than 200kN, improves installation efficiency, and the support mechanism is with the structure of sleeve, realizes the regulation of ± 1mm accuracy with hydraulic cylinder and laser range finder, the bottom is designed to adapt to the inclined ground, hot-dip galvanizing and fluorocarbon coating prolong the life, solve the many problems of traditional device.

The invention discloses a wear-resistant, corrosion-resistant and static-conductive fluorocarbon coating as well as a preparation method and a construction method thereof. The wear-resistant, corrosion-resistant and static-conductive fluorocarbon coating comprises a prime coating and a surface coating, the bottom layer coating comprises a component A1 and a component B, and the surface layer coating comprises the component B and a component A2; the component A1 is prepared from 45 to 60 parts of fluororesin, 10 to 20 parts of conductive filler, 30 to 40 parts of solvent, 0.3 to 1 part of flatting agent, 0.3 to 1 part of dispersing agent, 0.2 to 0.5 part of anti-settling agent and 0.2 to 0.5 part of defoaming agent; the component A2 is prepared from 35 to 45 parts of fluororesin, 5 to 15 parts of conductive filler, 15 to 25 parts of wear-resistant filler, 25 to 35 parts of solvent, 0.3 to 1 part of flatting agent, 0.3 to 1 part of dispersing agent, 0.2 to 0.5 part of anti-settling agent and 0.2 to 0.5 part of defoaming agent; and the component B comprises 30-40 parts of a curing agent and 60-70 parts of a solvent. The fluorocarbon coating has strong adhesive force with a base material, has excellent wear resistance and corrosion resistance, solves the problems of high-temperature erosion corrosion and cavitation corrosion generated in the operation process of the centrifugal pump, has good static conductivity, and can prevent safety accidents caused by static accumulation.

The utility model provides a corrosion-resistant die-casting aluminum alloy ingot, and relates to the technical field of aluminum alloy ingots. The corrosion-resistant die-casting aluminum alloy ingot comprises an aluminum alloy ingot body, fixing blocks are fixed to the two sides of the aluminum alloy ingot body correspondingly, connecting blocks are fixed to the separated ends of the two fixing blocks correspondingly, limiting frames are fixed to the two sides of the aluminum alloy ingot body correspondingly, and limiting grooves are formed in the separated sides of the two limiting frames correspondingly; two upper grooves are formed in the upper side of the aluminum alloy ingot body. According to the corrosion-resistant die-casting aluminum alloy ingot, the two aluminum alloy ingots are drawn close to each other in a back-to-back state through manpower, the stable clamping effect is achieved, the aluminum alloy ingots can be tightly connected into a whole, and then the effect of improving the use stability of the aluminum alloy ingots is achieved; according to the aluminum alloy ingot composed of the fluorocarbon coating, the ceramic coating, the anodic oxidation film layer, the rare earth conversion film layer, the corrosion-resistant alloy layer and the chromate conversion film layer, the corrosion-resistant effect of the aluminum alloy ingot is achieved, and the effect of improving the using effect of the aluminum alloy ingot is achieved.

The invention discloses a peptide-containing antibacterial, anticorrosive and antifouling coating as well as a preparation method and application thereof, and belongs to the technical field of marine corrosion and fouling protection. The peptide-containing antibacterial, anticorrosive and antifouling coating disclosed by the invention comprises peptide-containing nanoparticles and a fluorocarbon coating, the mass fraction of the peptide-containing nanoparticles is 5 to 15 weight percent; the peptide-containing nanoparticles take MSN as a carrier, the carrier is loaded with novel antibacterial peptides DVHI and Cu2O, and the surface of the carrier is coated with TAC. Wherein the novel antibacterial peptide DVHI is obtained by inducing insects by SRB, and the amino acid sequence of the novel antibacterial peptide DVHI is VAHKRLVVGTR. According to the prepared coating, sulfur ions generated by SRB metabolism can be used as a trigger switch, targeted slow-control release of the antifouling agent is achieved, and the coating is environmentally friendly and high in antifouling efficiency and has long-acting antibacterial, anti-corrosion and antifouling performance.

The application relates to the field of color steel plate preparation, and particularly discloses a preparation process of a low-VOCs environment-friendly color plate; the preparation process comprises the following steps: S1, after the pretreatment of a steel plate, uniformly spraying toughening coating and porous toughening fibers on the surface of the steel plate, drying, and die forming to obtain a semi-finished product; and S2, uniformly spraying water-based fluorocarbon coating on the surface of the semi-finished product, drying, and obtaining a finished product; the preparation process has the advantages of low VOCs, and the color steel plate has the advantages of high impact resistance, high corrosion resistance and ultraviolet resistance on the plane of the top of the color steel plate.

The invention belongs to the field of coatings, and discloses a normal-temperature curing type PVDF fluorocarbon coating and a preparation method thereof.The PVDF fluorocarbon coating is formed by mixing a component A and a component B. The component A comprises PVDF resin, hydroxy acrylic resin, modified titanium dioxide, modified talcum powder, a dispersing agent, a defoaming agent, a flatting agent and a mixed solvent, and the component B is an aliphatic HDI tripolymer curing agent; the modified titanium dioxide is prepared by the following steps: inorganic coating of titanium dioxide with nano silicon dioxide and nano cerium oxide, surface modification with silane, and graft polymerization with trifluoroethyl methacrylate free radicals under initiation of azodiisobutyronitrile. The modified talcum powder is obtained by performing hydroxyl activation on talcum powder and then performing condensation grafting on the activated talcum powder and a PVDF oligomer; through cooperation of the modified titanium dioxide and the modified talcum powder, the curing speed, the mechanical property, the weather resistance, the corrosion resistance and the stain resistance of the PVDF fluorocarbon coating can be remarkably improved.

The present application relates to a kind of indoor wall decoration structure, it includes multiple decorative plate of flatly arranged, the hanger between two adjacent decorative plates, each decorative plate is also staggered with support beam;Hanger includes the first connecting component connected with wall body, the second connecting component being arranged in the front of first connecting component, the third connecting component being arranged in the front of second connecting component and being connected with second connecting component;Support beam includes the fixed component being arranged in the back of decorative plate, the support component being arranged in the front of decorative plate;Decorative plate is connected with hanger by clamping structure;Wherein, the material of third connecting component, support component, decorative plate is all the aluminized zinc steel plate with fluorocarbon coating on surface, and decorative plate includes at least two aluminized zinc steel plates.The indoor wall decoration structure is decorated wall by selecting the aluminized zinc steel plate with fluorocarbon coating on surface, so that wall decoration is more wear-resistant, corrosion-resistant, so as to increase the service life of wall decoration.

The application relates to the field of fluorine-containing coatings and discloses a high-weather-resistance fluorine-containing acrylic composite coating and a preparation method thereof. The high-weather-resistance fluorine-containing acrylic composite coating is prepared by emulsion polymerization of 2-difluoromethyl-acrylic acid ethyl ester (DFMAET) as a main raw material, methyl methacrylate (MMA), butyl acrylate (BA) and glycidyl methacrylate (GMA). The fluorine-containing acrylic composite coating comprises, by mass percentage, 56-64% of fluorine-containing emulsion, 14-18% of titanium white powder (R type), 6-10% of nano-SiO 2 2-2.8% of film-forming aids, 0.16-0.24% of defoaming agents, 0.2-0.4% of thickening agents and deionized water, and the balance is 100%. Compared with traditional acrylate coatings and fluorocarbon coatings, the coating has the advantages of high weather resistance, low surface energy, balanced mechanical properties, economy and environmental protection, and the like. The coating has the effects of resisting ultraviolet light and salt spray corrosion.

The invention relates to the field of fluorine-containing coatings, and discloses a high-weather-resistance fluorine-containing acrylic acid composite coating and a preparation method thereof. The high-weather-resistance fluorine-containing acrylic acid composite coating is prepared by taking 2-difluoromethyl-ethyl acrylate (DFMAET) as a main raw material and carrying out emulsion polymerization on the DFMAET, methyl methacrylate (MMA), butyl acrylate (BA) and glycidyl methacrylate (GMA). The fluorine-containing acrylic acid composite coating is prepared from the following components in percentage by mass: 56 to 64 percent of fluorine-containing emulsion, 14 to 18 percent of titanium dioxide (R type), 6 to 10 percent of nano SiO2, 2 to 2.8 percent of coalescing agent, 0.16 to 0.24 percent of defoaming agent, 0.2 to 0.4 percent of thickening agent and the balance of deionized water. Compared with traditional acrylate coatings and fluorocarbon coatings, the coating has the advantages of high weather resistance, low surface energy, balanced mechanical properties, economy, environmental protection and the like. And the coating has the effects of resisting ultraviolet irradiation and salt spray corrosion.