Coating formula: formula of PP plastic surface coating (primer)

The key points are as follows: first of all, the coating used for plastic surface should have two basic properties: ① the coating must have good adhesion to the plastic Wetting is the premise of coating adhesion Any metal surface has strong polarity and large surface tension, which creates good conditions for coating wetting However, the surface tension of PP plastic is relatively low To achieve good adhesion of coating on PP plastic, good wetting should be produced on the surface of PP plastic, and proper corrosion can be achieved by changing the composition of solvent So as to produce good wetting ② The structure of coating shall be similar to PP as much as possible Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: paint used for plastic surface should first have two basic properties: ① paint must have good adhesion to plastic Wetting is the premise of coating adhesion Any metal surface has strong polarity and large surface tension, which creates good conditions for coating wetting However, the surface tension of PP plastic is relatively low To achieve good adhesion of coating on PP plastic, good wetting should be produced on the surface of PP plastic, and proper corrosion can be achieved by changing the composition of solvent So as to produce good wetting ② The structure of the coating shall be as similar as possible to PP PP molecules contain polar groups According to the principle of "similar compatibility", coatings with certain polar groups should be selected Therefore, for polar PP plastics, chlorinated polyolefin with similar structure should be selected to prepare primer, so CPP should be selected as the resin of primer Mix CPP and solvent first, the ratio of CPP and solvent is 5 / 95 (by mass), and let it stand for more than half a day When CPP can be fully expanded by some solvents, then heat the mixture to dissolve into solution The formula design of PP plastic surface coating (primer) is shown in Table 1 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,