摘要
对ＰＰ／ＥＰＤＭ／ＨＤＰＥ三元共混增韧进行了有效的研究，发现ＥＰＤＭ和ＨＤＰＥ在ＰＰ基体中起到了协同增韧作用，这种协同增韧作用是基于形成了特定的ＥＰＤＭ－ＨＤＰＥ壳核结构，使材料韧性和强度兼优，同时ＨＤＰＥ起到了补强的作用。在对三元共混材料的银纹、剪切带考察的基础上。
The toughening of PP/EPDM/HDPE ternary blends has been studied. The results show that both EPDM and HDPE have a synergistic effects for enhancing the toughness of the PP/EPDM/HDPE ternary blends. This synergistic effect can be attributed to the formation of the special structure of the EPDM-HDPE “core-shell” in the blends. The HDPE can also enhance the tensile strength of the blends. We have discussed, in this paper, the toughening mechanism on the base of observing the crazes and shear bandsin the blends.
出处
《大连轻工业学院学报》
1996年第4期30-34,共5页
Journal of Dalian Institute of Light Industry
关键词
聚丙烯
EPDM
HDPE
共混改性
增韧机理
增韧
polypropylene(PP)
High-density polyethysene(HDPE)
Ethylene-propylene-diene terpolymer(EPDM)
Blending modification
Core-shell structure
Toughening mechanismm
