Coating classification: performance of tertiary vinyl carbonate

Core tip: at present, due to the consideration of environmental protection, water-based coatings are widely used in building interior and exterior wall coatings However, the biggest problem of water-based coatings is that the environmental protection performance and film performance cannot be improved at the same time Some film-forming additives should be added to water-based coatings, which will affect people's health, which is also a major problem facing the coating industry Vinyl TERT carbonate and vinyl acetate can be used as the main raw materials for interior and exterior wall latex paint Its biggest feature is that the coating, environmental protection performance and film performance can be improved at the same time, and the manufacturing cost will be greatly reduced Vinegar TERT emulsion can also be used for making Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Home of coatings: at present, due to the consideration of environmental protection, water-based coatings are widely used for interior and exterior wall coatings However, the biggest problem of water-based coatings is that the environmental protection performance and film performance cannot be improved at the same time Some film-forming additives should be added to water-based coatings, which will affect people's health, which is also a major problem facing the coating industry Vinyl TERT carbonate and vinyl acetate can be used as the main raw materials for interior and exterior wall latex paint Its biggest feature is that the coating, environmental protection performance and film performance can be improved at the same time, and the manufacturing cost will be greatly reduced The TERT emulsion can also be used to prepare cement additives, inks, adhesives, textile auxiliaries, etc In addition, the copolymers of vinyl TERT carbonate and various acrylates can also be used in wood coatings and plastic coatings The characteristics of tertiary vinyl carbonate the tertiary vinyl carbonate is a colorless and transparent liquid with fruit fragrance Its viscosity is higher than that of water, and its density is smaller than that of water It is slightly soluble in water, and it is flammable, but it is not inflammable and has low toxicity See Figure 1 for its structural formula nnecttype="rect" o:extrusio nok="f" style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; word-wrap: break-word; "> the tertiary vinyl carbonate is a kind of multi branched monounsaturated carboxylic acid vinyl ester The steric hindrance of the formation of alkyl groups on the a-carbon atom and its nonpolarity make it show excellent UV resistance and strong hydrophobic performance, so that its polymer has good weather resistance, water resistance, alkali resistance and low surface tension The double bond in the molecule of tertiary vinyl carbonate makes it have certain reaction activity It can copolymerize with ethylene, acrylate, styrene and other monomers with double bond, improve the performance of its copolymers, broaden its application range, and is a kind of excellent modified monomers The copolymers and coatings of vinyl TERT carbonate, vinyl acetate and acrylate have the following characteristics: 1 Excellent alkali resistance due to the steric effect of alkyl groups on the α - carbon atom, the ester groups on the side chain of the polymer are difficult to hydrolyze, which can significantly improve the alkali resistance of the coating Therefore, the emulsion paint can be directly used on basic base materials such as cement and asbestos 2, excellent aging resistance, due to the shielding effect of alkyl groups on the alpha carbon atoms, determines the excellent oxidation resistance and UV resistance of the vinyl carbonate and its copolymers The coatings made by them are over ten years exposed to sunlight without damage They are far superior to the coatings made from polyvinyl acetate emulsion, vinyl acetate emulsion and styrene acrylic emulsion 3 Excellent crack resistance due to the steric effect of trialkyl group on α - carbon atom, the molecules can not be closely arranged, and the flexibility is large Therefore, the coating prepared by it is not easy to crack and has good crack resistance 4 Because the three alkyl substituents on the α - carbon atom are flexible substituents and have large potential resistance, the glass transition temperature of the copolymer is low (value = "3" TCSC = "0" unitname = "℃" W: St = "on" style = "margin top: 0px; margin right: 0px; margin bottom: 0px; margin left: 0px; padding top: 0px; padding right: 0px; padding bottom: 0px; Padding left: 0px; word wrap: break word; "> - 3 ℃), while the glass transition temperature of polyvinyl acetate is 28 ℃ Therefore, the emulsion paint made of copolymers supplemented with appropriate film forming AIDS has a film forming temperature of value =" 3 "TCSC =" 0 "unitname =" ℃ "W: St =" on "style =" margin top: 0px; margin right: 0px; margin bottom: 0px; margin left: 0px; padding top: 0px; Padding right: 0px; padding bottom: 0px; padding left: 0px; word wrap: break word; "> 3 ℃ for winter construction 5, environmental protection and adaptability to additives The TERT emulsion is made from vinyl acetate and vinyl carbonate These 2 monomers have almost no harm to the human body, so they can be selected as the first choice for interior wall coatings Tert emulsion has no special requirements for film forming auxiliaries, thickeners and so on Such wide adaptability makes its products versatility Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,