Coating knowledge: how to define green coating

Core tip: [news] now people are more and more inclined to choose green environmental protection products, as is the case with coatings, but many unprofessional people do not know what kind of coatings can be considered as real green Here are three simple criteria to describe: 1、 Total organic volatilization (VOC) of paint Organic volatiles are a direct threat to our environment, our society and human beings Paint is the second largest pollution source in modern society The first pollution source is brought by transportation industry, such as automobile exhaust, oil penetration, etc Therefore, the pollution of coatings to the environment is becoming more and more serious Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Paint Home News: [news] now people are more and more inclined to choose green environmental protection products, so is paint, but many non professionals don't know what kind of paint can be considered as real green Here are three simple criteria to describe: first, the total organic volatile content (VOC) of paint Organic volatiles are a direct threat to our environment, our society and human beings Paint is the second largest pollution source in modern society The first pollution source is brought by transportation industry, such as automobile exhaust, oil penetration, etc Therefore, more and more attention has been paid to the environmental pollution of coatings In 1967, the U.S Los Angeles area implemented 66 laws and regulations to limit the solvent capacity of coatings Since then, foreign countries have more and more strict restrictions on the amount of solvent in coatings At the beginning, only some solvents that can generate photochemical reactions were limited, but later it was found that almost all solvents can produce photochemical reactions, except for water, acetone, etc Therefore, some of our commonly used solvents such as toluene, xylene, butanone, acetate, etc are in the limit, and ethanol is no exception In short, we should try to reduce the amount of these solvents 2、 It's the toxicity of solvents That is, the solvents that can cause disease after contact or inhalation with human body Benzene and methanol are known as toxic solvents The ether of glycol used to be a kind of common solvent for waterborne coatings In the 1970s, it was widely used as a non-toxic solvent, but in the early 1980s, it was found that glycol ether was a kind of highly toxic solvent At that time, such solvents in the laboratory were absorbed and strictly prohibited from use For example, polyvinylpyrrolidone is a kind of artificial plasma The vinyl pyrrolidone monomer used to prepare it was considered as a non-toxic chemical In the late 1980s, I introduced it to the light curing coating industry and thought that it is an active monomer with high dilution efficiency and polymerization speed, and the film obtained by using it as an active diluent has excellent performance But it was soon found to be a carcinogen, so it was banned Toxic solvents will cause direct harm to production and construction personnel 3、 User security Generally speaking, after the paint is dried, its solvent can basically volatilize, but there must be a process, especially for the paint cured at room temperature Some solvents volatilize very slowly, although the amount of these solvents is not large, but due to the long-term contact of users, if the solvent is toxic, it will also cause harm to human health, so the use of toxic solvents must be limited during the preparation 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,