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材料研究学报  2002, Vol. 16 Issue (3): 303-306    
  论文 本期目录 | 过刊浏览 |
可交联硅烷接枝聚乙烯共混物的性能
李忠明; 杨鸣波; 冯建民; 龚风鸣; 周卫国;李明新
四川大学
引用本文:

李忠明; 杨鸣波; 冯建民; 龚风鸣; 周卫国; 李明新 . 可交联硅烷接枝聚乙烯共混物的性能[J]. 材料研究学报, 2002, 16(3): 303-306.

全文: PDF(691 KB)  
摘要: 研究了可交联硅烷接枝聚乙烯共混物(PEBX)的熔体流动速率(MFR),维卡软化点试过程中的温度变形关系,拉伸性能及结晶行为等性质。研究结果表明:(Ι)纯聚乙烯共混物(PEB)的MFR基本上不随时间变化,而PEBX的MFR随时间减小;(Ⅱ)在相同的温度下,交联后的聚乙烯共混物(CPEBX)的变形量小于PEB和PEBX的,在维卡软化点附近的温度,CPEBX的变形速率远小于PEB和PEBX的;(Ⅲ)CPEBX有交联,但其断裂伸长率与PEBX和PEB的相近,未受到交联的影响,其屈服应力高于PEBX和PEB的;(Ⅳ)CPEBX的熔点和熔程与PEBX及PEB的差不多,但结晶度比后两者的有所升高。讨论了产生上述特性的原因。
关键词 可交联硅烷按枝聚乙烯共混物熔体流动速率    
Key words
收稿日期: 1900-01-01     
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