33results about "Casein coatings" patented technology

The invention relates to a double in-situ method for preparing a casein-based nano silicon dioxide composite leather finishing agent. Casein has strong adhesive force, but forms a hard and fragile film with poor water resistance. The method comprises the following steps of: preparing a casein dissolving solution and an aqueous solution of caprolactam to obtain a caprolactam modified casein solution; adding 0.4 to 1.6 parts of tetraethoxysilane and 0.6 to 1.8 parts of silane coupling agent into the caprolactam modified casein solution; weighing 6.6 to 9.9 parts of mixed acrylic monomers, pouring the mixed acrylic monomers into the caprolactam modified casein solution, and stirring for emulsification; and dripping an aqueous solution of initiator into the caprolactam modified casein solution, and regulating the pH value to be 7.5 by using ammonia water to obtain the final product. The casein-based nano silicon dioxide composite leather finishing agent has the characteristics of strong adhesive force, high temperature resistance, high air permeability, high water resistance, excellent mechanical properties and the like, and is an environment-friendly material with good properties.

The present invention relates to an antibacterial casein based nano ZnO composite leather finishing agent and a preparation method thereof. The study of introduction of nano-ZnO into a casein system for preparing leather finishing agent is rarely reported. The preparation method is as below: adding casein, lye and deionized water to a three-necked flask, and heating in a water bath to obtain a casein dissolved solution; dispersing the nano-ZnO in water to obtain a nano-ZnO dispersion liquid; compounding the nano-ZnO dispersion liquid and casein dissolved solution to obtain the antibacterial nano ZnO composite leather finishing agent. According to the invention, first casein is dissolved by lye in a suitable temperature environment to obtain a casein dissolved solution; and then the nano-ZnO dispersion liquid and casein dissolved solution are compounded through a certain method to introduce ZnO nanoparticles into the casein system, so as to obtain the inorganic / casein leather finishing agent with excellent performance and excellent antibacterial properties.

The invention concerns lake compositions based on natural macromolecules (gelatin, chitosan, pectine etc.) with possible additions of vinyl polymers, metal-alcoxides etc., characterized by a barrier effect modulated in situ, in particular as a function of the relative humidity in the exterior ambient.

A coating composition includes pigments or a mixture of pigments, a surface active substance and a metal containing polymeric complex. The metal containing polymeric complex contains a metallic salt, a polymeric latex and polyvinyl alcohol (PVA), wherein the polyvinyl alcohol has a molecular weight ranging from about 10,000 to about 65,000.

The invention relates to the technical field of oil paint, in particular to fireproof oil paint. The fireproof oil paint is composed of, by mass, 6-12 parts of stearic acid, 6-12 parts of sorbic stearic acid, 3-6 parts of carbomer, 1.8-4.8 parts of mica powder, 5-10 parts of acrylic resin modified casein film formers, 0.2-0.8 part of flame retardant and 8-16 parts of zeolite powder. By the adoption of the technical scheme, the fireproof oil paint has the advantages that the modified mica powder which is modified by a silane coupling agent KH-570, the zeolite powder, the modified amino resin and the chloride-vinyl acetate copolymeter are added, so that the heat resistance of the oil paint is improved, and the flame retardant effect is good. Moreover, the fireproof oil paint has the good corrosion resistance and crack resistance.

The invention provides a preparation method of an anti-static anti-bacterial chitosan-casein composite leather finishing agent. The preparation method of the anti-static anti-bacterial chitosan-caseincomposite leather finishing agent includes the following steps of 1, dissolving chitosan; 2, dissolving casein; 3, preparing the anti-static anti-bacterial chitosan-casein composite leather finishingagent. Raw materials adopted in the preparation method are biodegradable; a composite technology is adopted, so that the preparation method is simple, the stability of products is good, the preparedanti-static anti-bacterial chitosan-casein composite leather finishing agent is a natural-product-based leather finishing agent with two functions of preventing static and bacteria.

I provide a non-toxic protein and protein compound conversion coated metal article, a painted or plated non-toxic protein and protein compound conversion coated metal article, the aqueous coating solution to provide the in-situ conversion protective coating, and a process of preparing the article. The article is a metal selected from the group consisting of magnesium, magnesium alloy, beryllium and beryllium alloy. The solution has a pH of 3.0 to 12.0 and preferably 4.0 to 10.0 and a protein and protein compound concentration of 0.1 to 10% by weight and the protein and protein compound have a molecular mass of 16,700 to 1,000,000.

The invention discloses a solar selective heat-absorbing coating. A light absorbing agent, a film forming agent, a solvent and an aid are evenly dispersed with a ball-milling method, a coalescing agent is added, and the solar selective heat-absorbing coating can be obtained after mixing. The coating is prepared from raw materials in parts by weight as follows: 50-100 parts of the film forming agent, 10-30 parts of the coalescing agent, 35-55 parts of the light absorbing agent, 20-50 parts of the solvent and 10-30 parts of the aid; the coalescing agent is propylene glycol butyl ether, propylene glycol monomethyl ether acetate and the like; a preparation method of the film forming agent comprises steps as follows: casein and gelatin are mixed in the weight ratio being (5-10):(2-3), water is added, the mixture is soaked at 15-22 DEG C and then transferred to a normal-temperature environment, a mixture of methyl acrylate and hexamethyldisiloxane in the weight ratio being (1-2):)(1-3) is added, the mixture is stirred and then irradiated under ultraviolet light for 10-15 min, and then modified casein-gelatin is obtained. The film forming agent is modified to be used as an important raw material for preparing the coating, the prepared coating has good weather resistance and waterproofness outdoors, the preparation process is simple and easy to understand, and the heat absorption efficiency of the heat-absorbing coating is guaranteed.

The invention discloses a volatilization-preventing material for a wholesale business transportation vehicle, and a preparation method thereof. The volatilization-preventing material for the wholesale business transportation vehicle comprises the following raw materials in parts by weight: 30 to 60 parts of calcite, 10 to 15 parts of casein plastic, 10 to 20 parts of an ethylene-propylene-diene terpolymer, 3 to 6 parts of zoisite, 3 to 5 parts of graphene, 3 to 5 parts of a dispersing agent, 3 to 8 parts of a stabilizing agent, 3 to 8 parts of a defoaming agent, 2 to 4 parts of a coupling agent, 2 to 4 parts of a curing agent, 3 to 5 parts of a thickening agent and 30 to 50 parts of water. The volatilization-preventing material for the wholesale business transportation vehicle is smeared at the outlet position of a transportation container, can be solidified quickly, achieves an effective blocking effect on most of organic compounds, does not need dissolved corrosion, has a good blocking effect and can exert the effect for a long time.

Colorized heat-insulating waterproof coating is disclosed. The coating is prepared by adding a film forming agent, a solvent, an auxiliary agent, an ultraviolet ray absorbing agent and pigment and a filler in order into a plastic tank, stirring the materials for 8-10 min until the materials are fully mixed, stirring the mixture at a speed of 1500 r/min for 25-28 min to fully disperse the mixture, adding a coalescing agent, performing high-speed dispersion for 3-5 min to obtain a dispersion system, adding a mixed solvent including acetone and ethyl acetate in a mass ratio of 1:1 to adjust viscosity, adding a sodium hydroxide solution to adjust the pH value to be 8-9, and fully mixing the mixture to obtain the waterproof coating. The film forming agent is adopted as an important raw material of the coating after the film forming agent is modified, and tensile strength and hardness of film of the film forming agent are significantly improved, and therefore the prepared coating has good weatherability and waterproofness under outdoor conditions and has reflective insulation and decoration functions. A preparing process of the coating is simple.

The invention discloses a cheese mixed linseed oil natural coating and a preparation method thereof. The coating is prepared from the following components in part by weight: 300 to 400 parts of activated cheese, 300 to 400 parts of emulsified linseed oil, 10 to 30 parts of emulsifier, 5 to 10 parts of wetting agent, 1 to 4 parts of preservative, 150 to 300 parts of water, and 0 to 1490 parts of other additives. Waste water, waste residue and a coating dry film produced by the coating production can be degraded, and environmental protection pressure can be reduced. The coating dry film can alsoabsorb formaldehyde and purify indoor air; the coating dry film releases no harmful substances.

The invention discloses leather coloring technology. According to the leather coloring technology, a plate with patters is used for spraying of colorful patterns onto leather surfaces, wherein the plate is prepared through clamping of natural flowers, grass, tree leaves, or plants by two layers of grids. Color and artistic effects are achieved; a conventional leather coloring single effect dying method is changed; the leather coloring technology is widely used for coloring of different kinds of leather, the obtained leather surfaces are bright and smooth, and possess excellent air permeability; the prepared colorful leather possesses natural artistic effects, is beautiful, is excellent in practicability, and possesses dry and wet rubbing resistance, water resistance, sunscreen effect, andinsect resistance.

The invention provides anti-ultraviolet high-flame-retardant yacht leather comprising a leather basic layer and a finishing agent coated on the leather basic layer. The leather basic layer is non-woven cloth obtained after sizing. The finishing agent is prepared from acid nigrosine crystals, pupa casein, dioctyl isophthalate, nipagin, borax, ammonia water, water, carbon black, benzoic acid high-carbon alcohol ester, dimethyl aminophenol octyl benzoate, 4-tert-butyl-4'-methoxy-dibenzoylmethane, cetanol and tris(2,3-dibromopropyl)phosphate. The leather can be applied to a yacht, and has effective anti-ultraviolet capacity and excellent ultraviolet shielding performance, and accordingly a greased leather sample can be endowed with a good ultraviolet shielding function. Meanwhile, the leather has a good flame-retardant effect, cannot be combusted easily after making contact with open fire, and effectively improves use safety of the yacht.