摘要
研究了动态硫化ＥＰＤＭ／ＰＰ共混物中ＰＰ相的结晶度及晶体结构，同时讨论了制备工艺条件对共混物中ＰＰ 相的结晶度和晶体结构的影响。结果表明：在动态硫化ＥＰＤＭ／ＰＰ 共混物中，硫化的ＥＰＤＭ 的分子链没有穿入ＰＰ 的晶区，ＰＰ 的结晶度随ＥＰＤＭ 含量的增加而下降。提高共混温度，加入软化剂或碳黑均使共混物中ＰＰ的结晶度降低，共混时间１５ｍｉｎ 时，共混物中ＰＰ相的结晶度最低，但ＰＰ的晶格不受制备工艺条件的影响。
The crystallinity and crystalline structure of PP in dynamically vulcanized EPDM/PP blends were studied in this paper. Effects of the perparation technologies on crystallinity and crystalline structure of PP in blends were investigated. The results show that the molecular chains of cured EPDM don't pass through crystalline structure of PP in the blends, and the crystallinity of PP in the blends decreases with weight percent of EPDM. With increasing blending temperature, adding softing agent and carbon black, the crystallinity of PP in blends are decreased. Blending time for 15 min, the crystallinity of PP in blends is the lowest. Crystalline structure of PP isn't influenced with the perparation techologies.
出处
《功能高分子学报》
CAS
CSCD
1999年第4期371-375,共5页
Journal of Functional Polymers
基金
国家"863"计划资助!(863 - 715 - 012 - 0160)
关键词
动态硫化
热塑性弹性体
三元乙丙橡胶
聚丙烯
EPDM
PP
dynamically vulcanization
crystallinity
crystalline structure
