硬脂酸铈(Ⅳ)对聚丙烯纤维光降解性能的影响Influence of Ceric Stearate on Photodegradation of Polypropylene
杨珂,赵耀明
YANG Ke, ZHAO Yao-ming (College of Masterial Science and Engineering
摘要(Abstract)：
在聚丙烯(PP)切片中添加0.2%￣0.6%的四价硬脂酸铈(CeSt4)作为光敏剂,经熔融共混纺丝制成PP/CeSt4共混纤维。通过人工加速紫外光降解试验,研究了CeSt4对PP共混纤维光降解性能的影响,并与传统的光降解剂硬脂酸铁(FeSt3)相比较。结果表明:CeSt4对PP共混纤维的光降解具有光催化作用,并且含量越高,其光催化作用就越强。在相同的光敏剂添加量下,含0.6%CeSt4的PP共混纤维,引发光降解的速率更快。可见,CeSt4也是PP的一种有效光敏剂。
Different contents of Ceric Stearate (CeSt4) were added into polypropylene(PP) to prepare PP/ CeSt4 composite, which were spun into fibers. The effect of CeSt4 on mechanical properties of iPP during artificial accelerated UV light weathering were studied. And it was compared with popular photodegradant FeSt3. The results showed that CeSt4 could induce PP degradation more effectively at the same content, and as the contents increased, CeSt4 had a higher degradation ability with a short induction period.
关键词(KeyWords)：
聚丙烯;纤维;光降解剂;硬脂酸铈(Ⅳ)
polypropylene, fiber, photosensitizer, ceric stearate
基金项目(Foundation): 广东省科技攻关项目,粤科记字[2003]272。
作者(Author):
杨珂,赵耀明
YANG Ke, ZHAO Yao-ming (College of Masterial Science and Engineering
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