摘要
用单边缺口法研究了聚乙烯(PE)与顺丁橡胶(BR)共混物在裂纹亚稳临界扩展时的断裂韧性(G_(?))。结果表明,加入BR可以明显改善高密度聚乙烯(HDPE)的抗裂纹扩展能力,但对低密度聚乙烯(LDPE)的抗裂纹扩展能力有所降低。
The Gje Values, the fracture toughness of subcritical crack propagation were determined by using single edge notched semples in blends of polyethlene and polybutadiene(BR). The experimental results showed that anti crack propagaton is improved obviously in HDPE/BR blends and is decreased in LDPE/BR blends.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
1991年第2期30-33,共4页
Polymer Materials Science & Engineering
关键词
聚乙烯
橡胶
共混物
断裂韧性
polyethylene blends, tensile failure, strength-toughness property.
