自然光老化对PVC-O管材外观及力学性能的影响  

Effects of natural light aging on appearance and mechanical properties of PVC-O pipes

作　　者：陈杰 陈媛媛 师海波[1] 徐慧远[1] 徐伟 CHEN Jie;CHEN Yuanyuan;SHI Haibo;XU Huiyuan;XU Wei(Yibin Tianyuan Group Co.,Ltd.,Yibin 644000,China)

机构地区：[1]宜宾天原集团股份有限公司,四川宜宾644000

出　　处：《聚氯乙烯》2021年第4期22-26,共5页Polyvinyl Chloride

摘　　要：考察了自然光老化对PVC-O管材外观颜色、尺寸、表面微观情况和力学性能的影响。结果表明:短期内自然光老化对PVC-O管材力学性能的影响不大,但对外观颜色及尺寸的影响明显,管材表面出现粉化现象,不建议在户外长期使用PVC-O管材。The effects of natural light aging on the appearance color,size,surface micro condition and mechanical properties of PVC-O pipes were investigated.The results showed that the natural light aging had little effect on the mechanical properties of PVC-O pipes in short term,but significantly influenced appearance color and size.The surface of PVC-O pipes appeared pulverization phenomenon.It was not recommended to use PVC-O pipes outside for a long time.

关 键 词：PVC-O管材 光老化 外观 力学性能 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]