改性B72比纯b 72有更好的耐光老化性能。
Compared with B72, the modified one has better anti-photodegradation.
结果表明，聚合度越高，树脂的热稳定性越好，HPVC的耐光老化性能明显优于普通聚合度聚氯乙烯(pvc)。
The results show that the higher the degree of polymerization is, the better heat stability of HPVC resin is, and the better light aging resistance of HPVC is.
研究了不同光稳定剂和抗氧剂及其配合使用、光稳定剂含量对聚乙烯薄膜耐光氧老化性的影响。
The effects of some light stabilizers and antioxidants on PE film photooxidation aging are studied, and the cooperation and content of these matters are also discussed.
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