摘要
研究了EPDM接枝马来酸酐 (EPDM g MAH)用量对聚酰胺 6(PA6)性能的影响及PA6/EPDM g MAH共混物的冲击断面形态。结果表明 :EPDM g MAH分散相颗粒与PA6基体能形成牢固的结合 ,对PA6具有显著的增韧改性作用 ;当PA6/EPDM g MAH的用量比为 90 /10时 ,共混物的综合性能最理想 ,其常温 (2 5℃ )及低温 (-2 0℃ )下的冲击强度分别比纯PA6增大 64 8%和 10 6 6% ,而且具有良好的挤出和注射成型加工性能。
The influence of EPDM g MAH addition level on the properties of PA6 was studied and the impact fracture surface of PA6/EPDM g MAH blend was investigated by SEM.The results showed that the EPDM g MAH particles of discontinous phase were firmly bound to PA6 matrix to give the latter a significant toughening effect;and when the blending ratio of PA6/EPDM g MAH was 90/10,the best comprehensive properties of the blend were obtained,its impact strengths at 25 ℃and -20 ℃were respectively higher than those of PA6 by 64.8% and 106.6%,and moreover,the blend had excellent processibility for extrusion and inject.
出处
《橡胶工业》
CAS
北大核心
2002年第3期142-145,共4页
China Rubber Industry
