Paint common sense: scientific definition of paint and paint

Core tip: Although we have talked about coatings and paints for many years, there is still no unified, scientific and standardized definition The industry's understanding of coating and paint has always been the same, so in the terms of national standards, there is only the standard of coating terms, but the outside world often divides them into two different types of products 　 The two different understandings of the industry and the outside world not only cause the confusion of commodity nature, but also cause the confusion of industry nature What's more, it is said that some local governments strictly control the paint as inflammable and explosive dangerous goods, while the paint is not managed as dangerous goods Therefore 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 paint news: Although the live topic of paint and paint has been discussed for many years, there is still no unified, scientific and standardized definition The industry's understanding of coating and paint has always been the same, so in the terms of national standards, there is only the standard of coating terms, but the outside world often divides them into two different types of products The two different understandings of the industry and the outside world not only cause the confusion of commodity nature, but also cause the confusion of industry nature What's more, it is said that some local governments strictly control the paint as inflammable and explosive dangerous goods, while the paint is not managed as dangerous goods As a result, some new paint manufacturers began to exploit the loopholes of the policy, clearly producing solvent based paint, but they deliberately avoided the word "paint" when building the name, and named the paint factory or special paint company to avoid the supervision of dangerous goods enterprises This is really using the basic concept of chaos in speculation Therefore, the author thinks that the definition of terms is an important basic work, and it is necessary to define paint and paint terms accurately and scientifically The evolution of paint and its concept paint has a long history in China The reason why it is called "paint" comes from the fact that the early materials can not be separated from vegetable oil and lacquer Therefore, the word "paint" carries a heavy history and ancient culture With the continuous development of science and technology, the paint industry continues to grow, and the varieties and categories of paint also continue to get innovation The word 'paint' appeared in the 1950s In the industry, it has always been considered that paint and paint are just two different terms for the same material In the 1950s-1960s and even 1970s, the industry mostly understood "paint" as academic term and "paint" as common term Therefore, at that time, the appellation of "coating" had some academic flavor It seems that only research units can enjoy the title of "coating", such as coating research institute or coating research office At the same time, all production enterprises are called paint factory, paint factory or paint factory The confusion between paint and its name began in the 1980s With the rapid development of economic construction and the rapid rise of construction industry, paint industry is no longer a monopoly of chemical system in the past A large number of newly built factories of the same kind in domestic construction system generally use 'coating' as the enterprise name With a large number of construction coating products entering the market, the word "coating" not only came out from the sacred academic palace, but also because the construction coating is mainly water-based products, so the concept of coating has been misinterpreted by the society, one-sided thinking that coating is water-based, mistakenly thinking that coating and oil paint are two different materials, belonging to two different industries GB 5206.1 In the basic terms of the vocabulary standard of paints and varnishes, coatings are defined as a general term for a class of liquid or solid materials that can form a solid coating film with protection, decoration or special properties (such as insulation, corrosion protection, marking, etc.) on the surface of an object In the early days, vegetable oil was the main raw material, so it was called paint Now synthetic resin has largely or completely replaced vegetable oil, so it is called coating For the above definition, the author has the following two points of view: 1 Now the reason why this kind of material is not called paint is more due to the development of paint varieties and categories, because the paint name can not cover all kinds of products in the industry, while the word paint can cover all kinds of products in the industry, and the use of paint name is more accurate and scientific For example, powder coating products should not use the appellation of paint Paint and paint are not interchangeable here Therefore, coating can cover solid powder coating and liquid coating, but replacement is not good, so the explanation in the standard is not very good 2 In the standard, "note" in the coating terminology: that is, the word "paint" can be used in the name of specific coating varieties, such as mixed paint, thick paint, etc., is also somewhat inappropriate Because in fact, the word "paint" is not only used in specific paint varieties, but also widely used in paint categories, such as acrylic paint, polyurethane paint, etc., but also widely used in general terms of application fields, such as anti-corrosion paint, automotive paint, marine paint, etc In fact, except for some cases, the words "paint" and "paint" are common, which do not refer to specific varieties Paint is the concept of paint The apparent characteristics of paint should be liquid It cannot cover solid paint except liquid paint Since the scope of coverage is different, it is difficult to explain the concept of paint and paint equally At present, water-based coatings and powder coatings have become the climate, especially the building coatings which are mainly water-based coatings have accounted for about 38% of the total coatings in China Because of the essential difference between the chemical properties of water-based paint and oil-based paint, and the great difference between the properties of water-based paint and oil-based paint products, it is unscientific to regard water-based paint as a major branch of the paint industry Water based paint and oil-based paint should be listed as two different series of liquid paint Therefore, the author suggests that in the standard of basic terms, not only the standard of coating terms should be properly revised, but also the standard of terms of paint, paint and waterborne paint They can be defined as: coating: the general name of a class of liquid or solid materials that can form a solid coating with protection, decoration or special performance (such as insulation, corrosion prevention, marking, etc.) on the surface of an object Including oil paint, water paint and powder paint Paint: liquid paint that can flow Including oil paint and water paint Paint: organic solvent or high solid, solvent-free oil paint Water based paint: paint that can be dissolved or dispersed with water 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,