摘要
将自制的丙烯酸酯弹性体、抗氧剂和光稳定剂与聚甲醛熔融共混后进行紫外线老化实验 ,并对老化前后试样的力学性能和表面层分子量进行了测试。结果表明 ,改性聚甲醛的分子量得到了较好的保持 ,抗冲击韧性及断裂伸长率均明显优于未改性聚甲醛。
In this paper a kind of acrylate elastomer, antioxidative stabilizer and UV stabilizer were mixed with POM. SEM photograph showed that acrylate elastomer can be dispersed well into POM matrix through melt-mixing process. The exterior molecular weight and the mechanical properties of modified POM after UV ageing for 1 000 hours were tested. The result showed the molecular weight of modified POM were kept well, which leaded higher impact strengh and elongation at break than pure POM.
出处
《弹性体》
CAS
2004年第6期12-15,共4页
China Elastomerics
基金
云南省省院省校科技合作项目资助( 2 0 0 2ZABDA0 0A0 1 5 )
