DEGRADATION OF POLYMER BLENDS .4. NATURAL WEATHERING OF BLENDS OF LOW-DENSITY WITH LINEAR LOW-DENSITY POLYETHYLENE

被引：16
|
作者：
DARO, A [1 ]
TROJAN, M [1 ]
JACOBS, R [1 ]
DAVID, C [1 ]
机构：
[1] UCB,SIDAC,B-9000 GHENT,BELGIUM
来源：
EUROPEAN POLYMER JOURNAL | 1990年 / 26卷 / 01期
关键词：
D O I：
10.1016/0014-3057(90)90096-M
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The molecular weight distribution of low density polyethylene-linear low density polyethylene blends, photo-oxidized in natural weathering conditions, has been studied. The exposure conditions cover different periods of the year from May to December, and so a broad range of intensities, total incident energy and weather. A good correlation between the results corresponding to these different conditions has been obtained using the global incident energy and a simple model for its spectral distribution. Main chain scission is the main process but some crosslinking has also been detected. Preferential degradation of LLDPE could not be observed. © 1990.
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页码：47 / 52
页数：6
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