摘要
介绍了颜色与颜料的概念、分类等,分析了PVC/PVC共挤彩色型材与ASA/PVC共挤彩色型材表面变色的原因。结果表明:1PVC/PVC共挤彩色型材的表面变色主要是PVC树脂降解加速颜料褪色和颜料本身褪色共同作用的结果;2ASA/PVC共挤彩色型材的表面变色主要是颜料本身褪色,ASA树脂基本没有变化。
The concept and classification of color and pigment were introduced. The reasons for surface discoloration of colored PVC/PVC co-extruded profiles and colored ASA/PVC co-extruded profiles were analyzed. The results showed that： ① the surface discoloration of colored PVC/PVC co-extruded profiles was mainly caused by the joint action of pigment fading accelerated by PVC resins＇ degradation and pigment fading itself; ② the surface discoloration of colored ASA/PVC co-extruded profiles was mainly caused by the pigment fading itself, since ASA resins did not degrade substantially
出处
《聚氯乙烯》
CAS
2014年第12期22-27,共6页
Polyvinyl Chloride
