449results about How to "Strong stain resistance" patented technology

The invnetion provides a preparation method for a graphene oxide / polyvinylidene fluoride composite ultrafiltration membrane and relates to the preparation method of the graphene oxide / polyvinylidene fluoride composite ultrafiltration membrane. The invention aims to solve the problem of poor hydrophilicity and stain resistance of the existing polyvinylidene fluoride ultrafiltration membrane. The method provided by the invention comprises the following steps of: 1. respectively adding graphene oxide, polyvinylpyrrolidone and polyvinylidene fluoride with N-methylpyrrolidone as solvent, heating and stirring to obtain casting membrane solution; 2. putting the casting membrane solution on a clean glass plate and scrapping to a certain thickness by a coating device, and then immersing distilled water, shedding and drying to obtain the graphene oxide / polyvinylidene fluoride composite ultrafiltration membrane. The preparation method provided by the invention can be applied to the fields of drinking water preparation, food industry, pharmaceutical industry, biotechnology, chemical process and environmental engineering.

A resource-saving glazed ceramic tile having an antiskid effect on surface and a preparation method thereof. Without great change on production process of the glazed ceramic tiles, formula composition of a blank body, composition of ground and cover glaze frits and formula composition of ground and cover glaze are regulated and optimized focusedly, so that the glazed ceramic tile, which has excellent performance and the antiskid effect, can be prepared even large quantity sludge residue is added to the blank body. Through a high-magnification scanning electronic microscopy for observing the surface of glaze on the product, it is found that projects which are hard and needle-like and look like aluminum spinel crystal are formed on the surface, and the glaze is 0.8 in antiskid coefficient and is R12 in antiskid level when a less quantity of water is sprayed on the glaze. The glazed ceramic tile has good antiskid effect, can reach 4000 r / four grade in wear-resisting revolution through detection, and has good anti-wear performance, surface anti-fouling performance and water permeation resistance. The glaze has no defects such as needle pores, bubbles and the like, has clear decorative pattern grains and is highly stone-simulated. The technology has strong adaptability and is easy to promote in the field.

The invention relates to a self-cleaning fluorosilicone-modified acrylic acid cathode electrophoresis paint and a preparation method thereof. The paint is prepared from a fluorosilicone-modified acrylic acid emulsion and a nano silicon dioxide modified color paste in a ratio of 9:1, wherein the fluorosilicone-modified acrylic acid emulsion is prepared by stirring a semiclosed aliphatic isocyanate-modified fluorosilicone-containing cationic acrylic resin, a neutralizer and deionized water at high speed; and the nano titanium dioxide powder modified color paste is prepared by grinding a semiclosed aliphatic isocyanate-modified fluorosilicone-containing cationic acrylic resin, a surfactant and deionized water at high speed in a grinding tank. The paint provided by the invention has the advantages of high self stability and high tank liquor stability; and after the electrophoretic coating, the coating has the advantages of flat appearance, favorable mechanical properties, excellent acid and alkali resistance, high hydrophobicity and favorable pollution resistance (at most 10%), and the contact angle between the coating film surface and water can reach 130 degrees.

A lightning arrestor with composite isolative casings consists of connecting parts at its both ends, zinc oxide valve sheets and multi-fold umbrella-shape isolative casing. The annular zinc oxide sleeved outside of a glass fiber bar as a core, a drying agent layer installed at its bottom and a sealed isolating chamber installed at its top, an isolative cylinder sleeved outside of them said above, a multi-fold silicon gel cover attached on outer of the isolative cylinder. It makes effect point shift from zinc oxide sheets to the glass fiber bar and isolative casing, so as to increase load ability and tension resistance strength. The drying agent makes performance stable, anti-fouling and has good hydrophobicity.

The invention discloses a method for anodizing and coloring the surface of a fluorine-free and environment-friendly titanium alloy, relates to the anodizing and coloring for the surface of the titanium alloy, and provides a method for anodizing and coloring the surface of the fluorine-free and environment-friendly titanium alloy. The method comprises the steps of: washing a titanium alloy work piece with alkaline to remove oil, and carrying out electrolytic polishing; anodizing and coloring the titanium alloy work piece after electrolytic polishing to obtain an oxide film of the titanium alloy with different colors; closing the anodized and colored titanium alloy work piece; and drying the closed titanium alloy work piece to obtain the titanium alloy work piece with the anodized and colored surface. The invention has less technical steps, simple operation in each step and is easy to maintain. The oxide films of the titanium alloy with different colors are obtained through setting different voltage values; the oxide film is dazzlingly brilliant, has bright and uniform colors without allochromatic colors, strong smudge resistance, favorable decorative effect, higher surface hardness, favorable binding force and corrosion resistance and prevents fingerprints. The solution in each step is easy to maintain, and the invention can realize mass production and has favorable actual application prospect.

The invention discloses a cultivation method for the root stock grafting of Actinidia chinensis Planch, comprising the grafting and cultivating steps of cultivating parental stock and selecting a shoot bud that is used for producing Actinidia chinensis Planch as an ear bud. The invention is characterized in that in the cultivation step of the parental stock, the selected root stock material is Actinidia polygama (alias: sky-high polygonum; plant name: silvervine; Latin name: Actinidia polygama). The Actinidia polygama is a wild plantlet which is collected from the investigation of a deep ravine everglade with the elevation of 1500 meters, has a highly-developed fiber root system, shows strong appetency to the grafting of Actinidia chinensis Planch and is a completely new parental stock breed. Compared with the prior art, the invention has the advantages of strong resistance abilities of cold, drought, saturation and canker, low soil requirements, good adaptability, convenient cultivation and management, simple soil displacement, low investment and low cost, etc.; furthermore, the invention can implement asexual propagation and is favorable for the sustainable and protective utilization of wide plant resources.

The invention discloses an ultraviolet cross-linked organosilicone modified acrylate copolymer emulsion which belongs to the field of high-molecular compounds. The ultraviolet cross-linked organosilicone modified acrylate copolymer emulsion is formed by constitutional repeating units and is a modified acrylate copolymer with a side chain containing an ultraviolet active group and an alkoxy siloxane group. The ultraviolet cross-linked organosilicone modified acrylate copolymer emulsion is obtained through the copolymerization reaction of an ultraviolet active single-functionality degree monomer, an alkoxy siloxane single-functionality degree monomer and a third single-functionality degree monomer. According to the ultraviolet cross-linked organosilicone modified acrylate copolymer emulsion, the side chain of the copolymer contains the ultraviolet active group and the alkoxy siloxane group, double crosslinking is realized, i.e. ultraviolet self-crosslinking and organosilicone self-crosslinking, and a high elastic material with good flexibility is formed, has high surface smoothness, strong contamination resistance, excellent adhesion resistance and no residual small molecules.

The invention belongs to the hydraulic reversing valve technical field, particularly relates to an automatic hydraulic pressure-regulation reversing combination valve used for a double line grease lubricating system, and provides a reversing valve which is applicable to the grease supply of high-pressure electric grease pumps as well as middle and low pressure electric grease pumps. The automatic hydraulic pressure-regulation reversing combination valve used for a double line grease lubricating system comprises a valve body, the valve body is provided with two grease inlets and two grease outlets, and three reversing slide valves are arranged inside the valve body. The invention is characterized in that: two symmetrical plunger type grease distribution check valves are arranged between the grease inlets and the slide valves, the grease distribution check valves and a reversing slide valve grease path are connected with a pressure-regulation safety valve, and one grease outlet is provided with a pressure sensor interface. Compared with the prior art, the valve has the following advantages that: the valve adopts the hydraulic control to automatically change directions, is applicable to the lubrication systems less than 40MPa pressure, and has big reversing pressure-regulation range (from 3.5MPa to 35MPa), flexible direction change, no noise, strong anti-pollution capacity and reliable work.

A prepared matte background and glossy pattern glazed tile product is enabled to have a surface with two special decorative effects, i.e., soft matte and highlight mirror-like effects, at the same time critically by virtue of optimization of types of biscuits, optimization of composition of a ground coat frit and a surface coat frit, optimization of composition of a ground coat and a surface coat, optimization of composition of a matte printing glaze frit, optimization of composition of matte printing glaze, adjustment and optimization of a pattern printing process and optimization of number of screen printing plates of the matte printing glaze and carving modes of an offset print roll on the basis of not significantly changing a conventional glazed tile production process. With organic combination with pattern design, the patterns at the soft matte parts and the highlight mirror-like parts of the tile are enabled to represent two different visual decorative effects at the same time. The difference of glossiness measured at the soft matte parts and the highlight mirror-like parts by using a WGG60-E4 gloss meter is greater than or equal to 50, so that the tile has a very unique visual effect and is strong in integral art aesthetic feeling. At the same time, the technology disclosed by the invention is good in universality and is easy to popularize in the industry.

The invention relates to a method for coloring the titanium and titanium alloy surface through anodization. The invention aims to provide a novel fluoride-free and environmental-friendly technology to improve the present titanium and titanium alloy anodization technology generally employing the highly toxic substance hydrofluoric acid, so that the requirements for green and safe production and sustainable development can be met. The method comprises the following processes: acceptance inspection before anodization, hanging, oil removing, flowing hot water washing, flowing cold water washing, electrolytic polishing, flowing cold water washing, deionized water washing, anodization, flowing cold water washing, flowing hot deionized water washing, dismounting, drying and inspection. The anodization coloring technology of the invention has low cost, simple operation, and can generate colorful and bright-colored high quality oxide-film layers, characterized by fingerprint pollution prevention on the surface, strong stain resistance and excellent decorative effect.

The invention relates to the field of the manufacturing of industrial leather, and in particular relates to a production process of anti-staining automobile interior leather. The production process comprises the steps of soaking, fleshing, liming, fleshing splitting, deliming, softening, pickling, tanning, aging, shaving, conditioning, retanning, neutralizing, dyeing, electrostatic conditioning, wringing stretching, wet vibrating, vacuum drying, vibrating, milling, bottom layer coating, electrostatic treatment, knurling, intermediate painting, anti-staining top layer preparing, anti-staining reinforced layer preparing, measuring and warehousing, wherein anti-staining top layer paint and anti-staining reinforced layer paint are respectively proportioned according to the appropriate components and then are sprayed onto the leather surface according to the appropriate coating amount, and then the leather is dried. Through the combined action of different functions, not only is the anti-staining performance strong, but also the anti-staining effect is remarkable, stains which are not repelled are easy to scrub and clean due to the difficulty in combination and permeation, and the automobile interior leather which is anti-staining and easy to clean can be achieved.

The invention discloses a mist surface hand feeling scratch-resistant coating paint and a preparation method thereof. The mist surface hand feeling scratch-resistant coating paint is composed of a component A and a component B, wherein the part ratio of the component A to the component B is equal to 100: (1-5); the component A comprises the following components in mass percentage: 40-60 percent of modified poly-acrylic acid alcohol resin, 0-2 percent of cellulose, 5-10 percent of tomentum powder, 5-10 percent of extinction powder, 0-5 percent of dispersing agent and 15-40 percent of solvent; the component B is a hardening agent. Due to the adoption of the manner, the mist surface hand feeling scratch-resistant coating paint can meet scratch-resistant property, improves the coating texture and the decoration effect, has a special hand feeling and meets different decoration requirements.

The invention discloses an elastic emulsion paint which is prepared from raw materials of deionized water, adipic dihydrazide, hydroxyethylcellulose, propanediol, 215 titanium dioxide, wollastonite powder, kaolin, 800 coarse whiting, waterborne fluorocarbon resin, styrene-acrylic emulsion, elastic emulsion, and the like in dispersive mixing way. With good expansion rate, the elastic emulsion of the invention can be painted in brushing, rolling and spraying way, is provided with breakthrough in stain resistance and hydrophobic property and has the advantages of waterproof and breathable performance, strong anti-pollution performance, alkali and acid resistance and lasting weather resistance.

The invention relates to a wall covering with PVC printed on a glass fiber base material and its manufacturing method. The wall covering is composed of a surface UV treated layer, a PVC printed layer, a base material coated layer and a bottom back composite layer from upper to lower. The surface UV treated layer is arranged on the PVC printed layer, and the PVC printed layer, the base material coated layer and the bottom back composite layer are connected through hot pressing. Compared to the prior art, the invention has higher size stability, higher resistance to soiling, environmental friendliness, flame retardancy, resistance to corrosion and mould, clear and natural patterns and wider applicability, can overcome the disadvantages of existing wall paper, such as small width, easy moulding, easy aging and color change, difficult cleaning and poor flame retardancy, and the disadvantages of the existing wall cloth, such as easy moulding, difficult cleaning and poor flame retardancy, and can be widely used in public places, such as hospital, school, exhibition center, guesthouse, etc.

The invention relates to a feedback self-operated reducing valve of a water-turbine generator set. The feedback self-operated reducing valve mainly comprises a valve cover (1), a valve seat (2), a tower-shaped spring (3) and a valve rod (4), wherein a water inlet channel and a water outlet channel which are separated mutually are formed in the valve seat (2); the valve rod (4) is a cylinder, and a hollow through-bottom pipeline is arranged at the lower section of the cylinder; a side hole (20) is formed in the lower middle part of the valve rod (4) and communicated with the hollow through-bottom pipeline; the valve rod (4) sequentially penetrates through an upper spring seat (16), the tower-shaped spring (3), a lower spring seat (17), a rubber drumhead (15), a large piston (13), an isolation board (14) and a small piston (12) from top to bottom, and the lower end is sleeved with a throttling cone (19); and the side hole (2) is formed in a feedback pressure compensation space between the large piston (13) and the isolation board (14). The feedback self-operated reducing valve is arranged at an outlet of a turbine runner and can adapt to substantial water pressure change, the stability of the water outlet pressure is good, the installation size is small, and the reducing valve has good anti-pollution capacity.

The invention relates to a formula of elastic fluorocarbon paint. The formula comprises the following ingredients: 40-50% of fluorocarbon resin, 15-20% of elastic resin, 0.3-0.5% of a wetting agent, 0.3-0.5% of a dispersant, 0.5-1% of a leveling agent, 15-20% of aluminium powder, 0.1-0.2% of an antifoaming agent, 0.1-0.5% of an anti-settling agent, 0-0.5% of a drier and 15-20% of a solvent. Long straight chain and low branched chain of a high-molecular elastic cross-linking agent react with a fluorine-containing polymer to form a highly-straight-chain and low-branched-chain polymer, the structure of which is jagged. The ultimate embodiment of properties is reflected in appropriate surface strength, excellent elasticity, telescopic springback function, high tensile strength and fracture resistance, low surface polarity and strong resistance to soiling and weatherability.

The invention discloses an electroplating wastewater reverse osmosis membrane treatment method adopting an energy recovery device. Key points of the technical scheme are that: the method comprises the following steps that: electroplating wastewater sequentially passes through an ultrafiltration membrane filtering raw water tank, an ultrafiltration membrane filtering delivery pump, an ultrafiltration membrane filtering unit, a reverse osmosis raw water tank, a booster pump and a security filter, and is divided; one branch enters a reverse osmosis device after being boosted by a high pressure pump, wherein the energy recovery device for recovering the energy of high-pressure reverse osmosis concentrated water flowing out of the reverse osmosis device is connected to the reverse osmosis device; and the other branch enters the reverse osmosis device through a circulating pump after the energy is recovered by the energy recovery device, filtered water filtered by the reverse osmosis device flows into a reverse osmosis product water tank, and after filtration, the concentrated water is treated and discharged.

The invention discloses an anti-static ceramic floor and a preparation method thereof. The anti-static ceramic floor comprises a body of the ceramic floor, a surface layer of the ceramic floor is baked with a mixed layer of glaze and conductive powder, the conductive powder accounts for 20 to 40 percent of the material weight of the mixed layer, wherein the conductive powder comprises the following compositions in weight percentage: 55 to 90 percent of Sn, 5 to 25 percent of Zn, and 5 to 25 percent of Ti. The preparation method comprises the following steps: the glaze is produced first, and then the conductive powder is added according to the mixing proportion of the glaze and the conductive powder to mix and stir evenly; after a molding process of the ceramic floor is finished, a mixed material of the glaze and the conductive powder is coated on the surface layer of the ceramic floor according to the preset printing proposal; the baking and the separation to finished products are performed to obtain the qualified finished products.

The invention belongs to the field of sewage treatment, and relates to a combined constructed wetland ecological treatment method and system for nitrobenzene wastewater. The system comprises a horizontal subsurface flow constructed wetland anaerobic bed (6), a tidal flow constructed wetland aerobic bed (11) and a deflection funnel type intermittent quantitative water feeder (9), wherein the anaerobic bed (6) is communicated with a precipitation tank (2) through a water inlet pipe provided with a water pump (3); wetland plants (5) are grown on the anaerobic bed (6); the aerobic bed (11) is composed of an upper tidal flow constructed wetland fine sand layer (10) and a lower high-adsorbability substrate layer; a siphon drainage pipe (14) is arranged at the water outlet of the aerobic bed (11); and the outlet of the siphon drainage pipe (14) is connected with the precipitation tank through an automatic flow-averaging regulator (12) and an automatic return pipe (13). The invention provides a horizontal subsurface flow-tidal flow combined constructed wetland ecological nitrobenzene treatment system according to the concept of complementary advantages.

Provided is an inorganic nano particle modified coating polyurea road marking composite coating and a preparation method thereof. The inorganic nano particle modified coating polyurea road marking composite coating is composed of an A component and a B component, wherein the formula of the A component is that 10-35 parts of thermoset resin, 10-35 parts of thermoplasticity resin; 20-70 parts of polyaspartic acid ester; 0.1-1part of inorganic nano materials, 5-100 parts of pigment; 0.15-0.3 parts of dispersing agent; 0.15-0.3 assistant; and diluent margin; so that total parts are 100; the formula of the B component is that 80-90 parts of aliphatic series polyisocyanates; 10-20 parts of diluent and so that total parts are 100; the A component and the B component are mixed with a size ratio of 1-4: 1 in the using process; the preparation method is that the A component and the B component are respectively prepared, and are mixed based on the ratio and use a coating machine to coat in the using process. The road marking composite coating of the inorganic nano particle modified coating polyurea road marking composite coating effectively overcomes a plurality of defects of a traditional road marking composite coating, thereby possessing good adhesive force, wear resistant performance and anti-pollution performance, so that the construction performance and the mechanics performance of the inorganic nano particle modified coating polyurea road marking composite coating are excellent.

The invention relates to a reflective insulation energy-saving coating for the external surface of a building. The coating is characterized by comprising the following components in percentage by weight: 15 to 45 percent of deionized water, 0.5 to 5 percent of dispersing agent, 16 to 36 percent of rutile type titanium dioxide, 3 to 35 percent of insulation powder, 0.1 to 3.5 percent of wetting agent, 0.5 to 2 percent of auxiliary film forming anti-freezing aid, 1.5 to 7.8 percent of film forming aid, 0.1 to 1.8 percent of antifoaming agent and 0.5 to 2.5 percent of thickening agent. The reflective insulation energy-saving coating for the external surface of the building effectively resists radiation of heat energy produced by sunlight and is an energy-saving and environment-friendly product; meanwhile, the preparation process flow for the coating is simple, complex equipment is not needed, large-scale processing production is easy to implement, the preparation process is environment-friendly, the conventional insulation system can be partially or completely replaced through thermal performance design calculation, and the potential fire hazard of an external wall insulation system is eliminated.

The invention relates to a lifting and steering hydraulic integrated valve, which is convenient for manual control. The valve body is internally provided with the following branch valves consisting of valve core holes and valve rods: a steering slide valve, a lifting slide valve, a hydraulic control one-way valve, a high-pressure overflow valve and a low pressure overflow valve, wherein a plurality of process oil ducts are arranged between the branch valves and are communicated with each other. The lifting and steering hydraulic integrated valve is characterized in that the rod section of a valve core rod in a spring mounting cavity positioned in the valve core hole of the steering slide valve is provided with a pair of coaxial inner and outer ring double-spring seats, and the inner and outer ring double-spring seats are provided with an inner ring spring and an outer ring spring; and in an off working state, the inner ring spring is in a loosing state, while the outer ring spring is in a slight compression state to generate certain tensile force so that the valve core rod of the steering slide valve is in the middle position. The lifting and steering hydraulic integrated valve adopts a double-spring valve core rod control device in the steering slide valve, so that the controlling hand feeling of the steering slide valve is greatly strengthened, thus the operational efficiency and the safe reliability of the steering control of the lifting and steering hydraulic integrated valve is further improved.

The invention discloses a deep treatment method of high-concentration organic wastewater. The method comprises the following steps: step one, coagulating and precipitating; step two, carrying out ultraviolet-ozone-ultrasound combined reaction stage; step three, carrying out electrolysis treatment through three dimension electrodes; step four, recycling heavy metals; and step five, carrying out ultrafiltration-electrodialysis coupled desalinization. The deep treatment method of high-concentration organic wastewater is free of biological treatment processes, free of pretreatment, high in desalinization rate, simple to operate, high in efficiency, free of secondary pollution and low in cost, and is capable of completely removing organic matters, recycling the heavy metals and recycling the high-concentration organic wastewater.

The invention discloses a self-cleaning material for signal lines. The self-cleaning material is prepared from the following ingredients, by weight, 30-40 parts of hydroxyl-terminated fluorine-containing polyester polysiloxane, 10-20 parts of chitosan- adipic acid dual coating modified calcium carbonate, 40-60 parts of diisocyanate fluoride, 20-30 parts of a PS-b-PDMS-b-PS segmented copolymer, 10-15 parts of POE-g-MAH and 15-25 parts of a processing aid. The invention also discloses a preparation method of the self-cleaning material for signal lines. The product has characteristics of low surface tension of fluoroalkyl-containing and siloxane-containing structures, hydrophobicity, oleophobicity and the like. When the product is applied to signal lines, the product has advantages of self-cleaning function, high anti-pollution ability, flexibility, good elasticity, good hand feeling, good weatherability, chemicals resistance, antibacterial property and the like, and is not easy to scratch or leave a trace. When in use, the product can keep bright in appearance for a long time. thus, the defect that most existing fluorine-containing materials have high hardness and inflexible molecular chain and are not applicable to signal lines is overcome.

The invention relates to a method for manufacturing a natural-like stone ceramic tile with clear color and luster and boundary. The ceramic tile comprises the following main raw materials in percentage by weight: 10 to 15 percent of low-temperature porcelain powder, 10 to 20 percent of medium-temperature porcelain sand soil, 9 to 18 percent of high-temperature porcelain sand, 10 to 15 percent of washed black mud, 10 to 15 percent of albite powder, 5 to 10 percent of alumina porcelain sand, 10 to 20 percent of sodium porcelain sand, 5 to 18 percent of ball clay, 0.5 to 1 percent of liquefaclent and 0.5 to 1.5 percent of pigment; a process flow of the manufacturing method comprises : material selection, material burdening, ball milling, toning, pulverization, cloth pressing, drying, sintering, polishing, sorting, packaging and warehousing; a sprayed micron antifouling coating process is added between a cloth pressing process and a drying process; the cloth pressing process comprises: powder crushing, full automatic computer-controlled vertical blanking, dropping of line micropowder cloth in a mould, distribution of a base material, and pressing and molding; slurry comprises the following components in percentage by moisture mass: 34 to 36 percent of base material and 32 to 34 percent of ice-thoroughly material; and powder (the fineness is about 250-mesh sieve ) comprises the following components in percentage by weight: 0.8 to 1.0 percent of base material and 0 percent of ice-thoroughly material.

The invention provides a preparation method of a superhydrophilic and underwater superoleophobic calcium carbonate hybrid membrane. The method includes the steps of: (1) adding a calcium ion solution into an alginate solution to prepare calcium alginate gel, and performing stirring treatment on the gel to form flocculent precipitate; (2) under stirring, adding a carbonate solution into the material obtained by step (1) to obtain calcium carbonate-calcium alginate hybrid particles; and (3) conducting pumping filtration and drying on the material obtained by step (2), thus obtaining the superhydrophilic and underwater superoleophobic calcium carbonate hybrid membrane. The invention also provides the hybrid membrane prepared by the method and application thereof in the oil-water separation field. The hybrid membrane provided by the invention has good flexibility and mechanical strength, very low adhesive force to oil stain, and very strong pollution resistance, and can realize oil-water separation of high viscosity crude oil and oil-water emulsion. The hybrid membrane also has the advantages of simple preparation, low cost, green and no pollution, and recyclability, and is expected to realize large-scale production and application.

The invention relates to a stain resistant environment-friendly latex paint for inner walls and a preparation method thereof. The latex paint contains the following components by mass: 10-25 parts of a polyvinyl alcohol water solution, 9-22 parts of an organosilicon modified acrylic ester emulsion, 6.5-16 parts of silica sol, 5.5-9 parts of anatase nano-titanium dioxide, 7-16 parts of rutile titanium dioxide, 13-30 parts of heavy calcium carbonate, 3.5-8 parts of light calcium carbonate, 3-7 parts of ash calcium powder, 0.2-0.5 part of polyacrylic acid sodium salt, 0.27-0.67 part of polyacrylamide, 0.13-0.33 part of nucleoside 5'-thiophosphoryl amino acid ester, 0.27-0.7 part of tributyl phosphate, 0.45-1.17 parts of dimethylethanolamine, 0.1-1 part of fluorescent whitening agent, and 17-42.5 parts of water. The stain resistant environment-friendly latex paint for inner walls provided by the invention has the very strong stain resistance, and is environment-friendly and non-toxic.

The invention relates to an anti-cracking color retention VOC-free (Volatile Organic Compounds) zero-alkali-return aqueous dry powder building colored coating which comprises the following substances in percentage by weight: 20-40% of low-alkali cementing agent, 50-60% of colored sand, 4-9% of sepiolite powder, 0.01-0.015% of plasticizing agent, 0.05% of high-strength adhesive, 3-9% of redispersible latex powder, 0.01% of water repellent, 0-0.1% of antalkaline, 0.01-0.02% of powdered dispersing agent, 0-0.02% of powdered defoaming agent and 0.8-2% of inorganic pigment. The anti-cracking color retention VOC-free zero-alkali-return aqueous dry powder building colored coating is compounded by utilizing the compatibility principle of various powder raw materials and a scientific formula. The anti-cracking color retention VOC-free zero-alkali-return aqueous dry powder building colored coating has the advantages of strong base wall adhesive force, strong weather resistance, zero alkali return and bright color, no cracks or light pollution is generated, and the service life of the coating is as long as that of a building. The anti-cracking color retention VOC-free zero-alkali-return aqueous dry powder building colored coating is mainly applied to the decorative finish of civil building alternative brick surfaces and the latex coating decorative finish and belongs to a novel environment-friendly and energy-saving material.

The invention relates to a preparation method of finishing-free stone-like paint. The method sequentially comprises steps as follows: (1) adding 4-10 parts of water to a dispersion jar, adding 0.05-0.12 parts of hydroxyethyl cellulose in the stirring state of 350-550 r / min of a dispersion machine, performing stirring for 3-5 min, adding 0.05-0.08 parts of a water-based multifunctional aid in the stirring state of 350-550 r / min, and performing stirring for 5-10 min in the stirring state of 800-1000 r / min after addition; (2) sequentially adding 15-20 parts of a white water-proof emulsion, 0.04-0.06 parts of a thickener, 0.09-0.10 parts of a water repellent, 0.7-1.0 part of a coalescing agent, 0.5-0.6 parts of an anti-freezing agent, 0.11-0.13 parts of a bactericide and 0.04-0.05 parts of an antifoaming agent in the stirring state of 800-1000 r / min, and performing stirring for 5-10 min in the stirring state of 800-1000 r / min; (3) slowly adding 73-76 parts of natural colored sand in the stirring state of 500-700 r / min, and perform full stirring in the stirring state of 500-700 r / min for 10-15 min after addition to obtain the finishing-free stone-like paint.

The invention discloses a waterborne scratch-resistant coating, which is prepared from the following raw materials in part by weight: 6 to 10 parts of ceramic mirobeads, 6 to 14 parts of quartz powder, 30 to 40 parts of silicone acrylic emulsion, 0.4 to 0.7 part of dispersing agent, 0.1 to 0.3 part of wetting agent, 0.2 to 0.6 part of defoaming agent, 1.5 to 2 parts of film forming aid, 0.1 to 0.4 part of thickening agent, 0.3 to 0.5 part of levelling agent, 0.1 to 0.2 part of scratch-resistant aid, 0.1 to 0.4 part of fluorine aid, 20 to 23 parts of titanium white and 20 to 25 parts of water.The ceramic mirobeads, the quartz powder and the scratch-resistant aid are added, so that the compactness of a film is improved, the hardness and surface smoothness of the film are improved, and the film has high scratch resistance, wear resistance and resistance to soiling, and has a smooth handfeel like a glass surface.