熔结环氧粉末防腐钢管

的优点是具有优良的耐候性、保色性、耐污染性、金属附着力强、涂膜外观优异，适用作装饰性粉末涂料。热塑性粉末涂料。Melting epoxy powder anticorrosive steel pipe has the advantages of excellent weather resistance, color retention, pollution resistance, strong metal adhesion, excellent appearance of film, suitable for decorative powder coatings. Thermoplastic powder coatings.热塑性粉末涂料是1950年开始出现的，它在喷涂温度下溶融，冷却时凝固成膜。由于加工和喷涂方法简单，粉末涂料只需加热熔化、流平、冷却或萃取凝固成膜即可，不需要复杂的固化装置。大多使用的原料都是市场上常见的聚合物，多数条件下都可满足使用性能的要求。但也存在某些不足，诸如熔融温度高，着色水平低，与金属表面粘着性差等。Thermoplastic powder coatings began to appear int melts at spraying temperature and solidifies into films when cooled. Because of the simplicity of the processing and spraying methods, powder coatings need only be melted, leveled, cooled or solidified into films by heating, or solidified by extraction, without complicated solidification devices. Most of the raw materials used are common polymers on the market, which can meet the performance requirements under most conditions. But there are also some shortcomings, such as high melting temperature, low coloring level, poor adhesion to metal surface, etc.尽管如此，常用的热塑性粉末涂料仍表现出一些特有的性能，其中聚烯烃粉末涂料具有极好的耐溶剂性；聚偏氟乙烯涂料具有突出的耐候性；聚酰胺具有优异的耐磨性；聚氯乙烯具有较好的价格/性能比；热塑性聚酯粉末涂料具有外观漂亮、艺术性高等优点。这些特性使热塑性粉末涂料在涂料市场中占有很大比例。Nevertheless, the commonly used thermoplastic powder coatings still show some unique properties, among which polyolefin powder coatings have excellent solvent resistance; polyvinylidene fluoride coatings have outstanding weatherability; polyamide has excellent wear resistance; polyvinyl chloride has a good price / performance ratio; thermoplastic polyester powder coatings It has the advantages of beautiful appearance and high artistry. These characteristics make thermoplastic powder coatings occupy a large proportion in the coatings market.