Common knowledge of coating: types and application of coating additives

Core tip: the use of paint additives has run through all stages of paint manufacturing, storage and use For example, initiator, dispersant and vinegar exchange catalyst used in the manufacturing stage; defoamer, emulsifier and filter aid used in the reaction process; anti skinning agent, anti settling agent, thickener, thixotropic agent, anti floating color flower agent and anti gelling agent used in the storage stage; leveling agent, pore releasing agent, anti flow hanging agent, hammer mark aid, flow control agent, plasticizer and defoamer used in the construction stage; Coalescing AIDS, adhesion promoters, photoinitiators, light stabilizers, driers, brighteners and matting agents used in the film-forming stage 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 Coating home news: the use of coating additives has been throughout the coating manufacturing, storage and use of each stage For example, initiator, dispersant and vinegar exchange catalyst used in the manufacturing stage; defoamer, emulsifier and filter aid used in the reaction process; anti skinning agent, anti settling agent, thickener, thixotropic agent, anti floating color flower agent and anti gelling agent used in the storage stage; leveling agent, pore releasing agent, anti flow hanging agent, hammer mark aid, flow control agent, plasticizer and defoamer used in the construction stage; Coalescers, adhesion promoters, photoinitiators, light stabilizers, driers, brighteners, matting agents, curing agents, cross-linking agents and catalysts used in the film-forming stage; flame retardants, biocides, mildew proofing, algae proofing, antistatic, conductive, corrosion inhibiting and other aids used in improving the special performance of the film It can be seen that paint additives have formed a wide range of professional fields According to the incomplete statistics of the National Paint Industry Information Center, there are more than 1800 paint additive manufacturers in China at present The prosperity of this industry further reflects the importance of paint additive from one side However, in recent years, there has been an abnormal phenomenon in the coating industry Some coating formula designers tend to abuse additives, and the problem is more and more serious The correct use of additives in coatings can achieve twice the result with half the effort, but if they are used improperly or even abused, they will not play their due role, but will cause other problems and defects For example, the paint film is very flat when spraying, but a lot of bubbles appear after surface drying Some engineers take it for granted to add a lot of defoamers, but they do not try to consider problems from the aspect of improving leveling As a result, problems such as shrinkage cavity and turbidity are brought, and then other aids are added to balance the performance Although the problem may be solved eventually, it increases the cost and shape It has become a wrong idea, which leads to its continued abuse of additives in later development In coatings, between auxiliaries, between auxiliaries and resins, between auxiliaries and pigments There will be various interactions between auxiliaries and solvents, pigments and pigments, pigments and solvents, and solvents and solvents For different formulations, the effect of the same auxiliaries will certainly be different Therefore, the selection of auxiliaries should be based on a large number of experiments to determine the best plan, not only for raw materials, but also for processes, equipment and construction links, so as to manufacture To create a coating with excellent quality and performance 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,