受阻胺光稳定剂对PVC的光稳定作用  

Photostabilization Functions of Hindered Amine Light Stabilizers to PVC

作　　者：叶永成[1] 刘福菊[1] 白福臣[1] 王庆斌[2] 孔杰 

机构地区：[1]中科院长春应用化学研究所 [2]白山市喜丰塑料股份公司

出　　处：《中国塑料》1999年第4期74-80,共7页China Plastics

摘　　要：传统上，聚氯乙烯（ＰＶＣ）防光老化主要用二苯甲酮类光稳定体系。一般认为在聚烯烃中应用效果较好的受阻胺光稳定剂，不适用于ＰＶＣ体系。将受阻胺光稳定剂试用于ＰＶＣ薄膜，结果表明，该光稳定剂用于ＰＶＣ中，其光、热稳定效果与二苯甲酮类紫外光稳定剂相近。为使ＰＶＣ具有防尘功能的丙烯酸酯类聚合物表面涂层，对ＰＶＣ的紫外光稳定有益。Traditionally,in order to photostabilize polyvinyl chloride(PVC),photostabilzation system of benzophenone is applied.It is once considered that hindered amine light stabilizers(HALS),which are widely used in polyolefins,are not suitable for PVC.HALS are experimentally used in PVC films in this study.It is shown that thermostabilization and photostabilization functions of HALS are similar to those of benzophenone in PVC.An acrylate polymer coating with dust proof function coated on PVC is beneficial to photostabilization of the films.

关 键 词：受阻胺 光稳定剂 HALS 聚氯乙烯 老化 

分 类 号：TQ325.304[化学工程—合成树脂塑料工业]