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.

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 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 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 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.