聚合物脆韧转变判据及影响因素研究进展  

Advances in Criterion and Influence Factor for Brittle-Ductile Transition of Polymers

作　　者：刘振宇[1,2] 熊玉竹[1,2,3] 梅文杰[1] 王章凯[1] 

机构地区：[1]贵州大学材料科学与冶金工程学院,贵州贵阳550025 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]贵州省材料强度与结构重点实验室,贵州贵阳550025

出　　处：《塑料科技》2013年第7期109-114,共6页Plastics Science and Technology

摘　　要：综述了聚合物脆韧转变的几种判据,其中着重介绍了Bucknall判据、临界基体层厚度判据、损伤竞争准数判据、分子链参数判据、临界黏结条件判据等。而且结合聚合物脆韧转变判据,分析了基体性质、分散相形态、界面黏结强度以及外界因素对聚合物脆韧性的影响,并指出了结合各因素的影响综合考虑聚合物脆韧转变判据的研究方向。Various criterions for brittle-ductile transition in polymers were reviewed,such as Bucknall criterion,critical matrix thickness criterion,critical damage competition group criterion,molecular chain parameter criterion and critical bonding condition criterion.The effects of matrix properties,the morphology of dispersed phase,the interface adhesion strength between phases and external factors on the brittle-ductile transition of polymers were analyzed.According to the analysis results,a new research direction of polymer brittle-ductile transition criterion was put forward.

关 键 词：聚合物 脆韧转变 判据 影响因素 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]