Coating knowledge: material selection of high temperature resistant powder coating formula

Core tips: high temperature resistant powder coating is mainly composed of high temperature resistant resin, high temperature resistant pigment, high temperature resistant filler and special additives; it is widely used in chemical, petroleum, metallurgy, aviation and other industries due to its outstanding high temperature resistance At present, silicone powder coating is still the main heat-resistant powder coating The selection and control of each component in organosilicon powder coating is the basis of high temperature resistant organosilicon powder coating 1 Application of silicone resin in high temperature resistant powder coating silicone resin takes the silicon oxygen bond as the main chain, because of its high bond energy, silicone resin has high oxidation stability, and can form a stable protective layer on the surface of the film Organic alone 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: high temperature resistant powder coating is mainly composed of high temperature resistant resin, high temperature resistant pigment, high temperature resistant filler and special additives; it is widely used in chemical, petroleum, metallurgy, aviation and other industries due to its outstanding high temperature resistance At present, silicone powder coating is still the main heat-resistant powder coating The selection and control of each component in organosilicon powder coating is the basis of high temperature resistant organosilicon powder coating 1 Application of silicone resin in high temperature resistant powder coating silicone resin takes the silicon oxygen bond as the main chain, because of its high bond energy, silicone resin has high oxidation stability, and can form a stable protective layer on the surface of the film However, when the silicone resin is used alone, the intermolecular force is small, the adhesion is poor, and the price is high On the premise of meeting the relevant performance, generally add appropriate silicone resin to the resin to solve the above problems In a certain range, the larger the amount of silicone resin, the longer the service life and heat-resistant time of the coating It has been mentioned in the literature that when the dosage of a silicone resin increases from 0.1 to 0.3, the heat-resistant time of the coating increases from about 50h to 100h Of course, the actual dosage of different silicone resin needs to be determined by experiments 2 The selection of pigments and fillers is due to the superior heat-resistant performance of inorganic pigments compared with organic pigments, so organic pigments are generally not considered in high-temperature resistant powder coatings, and the suitable and stable ones are mainly selected from inorganic pigments According to relevant literature, the order of the impact resistance of the film before baking in fillers is: wollastonite, mica powder, kaolin > sillimanite > quartz After barbecue, mica powder is the best, and there are few other phases In addition, the amount of pigments and fillers also has a certain impact on the degree of temperature resistance In the application of silicone resin heat-resistant powder coating, the best amount range is 60% - 100% (the ratio with resin problems) 3 The selection of additives is an important part of improving the high temperature resistance and mechanical properties of high temperature resistant powder coatings Such as adding antioxidant and hardener to high temperature resistant powder 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,