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- [1] Modification of fracture toughness of isotactic polypropylene with a combination of EPR and CaCO3 particlesJOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 175 (1-3) : 446 - 451Zebarjad, S. M.Sajjadi, S. A.Tahani, M.
POLYETHYLENE TOUGHENED BY CACO3 PARTICLES - THE INTERFACE BEHAVIOR AND FRACTURE MECHANISM IN HIGH-DENSITY POLYETHYLENE/CACO3 BLENDS
被引：48
|作者：
FU, Q
WANG, GH
LIU, CX
机构：
[1] Department of Polymer Science and Materials, Chengdu University of Science and Technology, Chengdu
来源：
基金：
中国国家自然科学基金;
关键词：
CORE SHELL MORPHOLOGY;
HDPE CACO3 BLENDS;
FRACTURE MECHANISM;
D O I：
10.1016/0032-3861(95)97339-H
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ;
080501 ;
081704 ;
摘要：
Tensile behaviour and impact force-time curves of high density polyethylene/CaCO3 blends have been investigated. The results showed that there may exist a flexible interfacial area with lower stiffness than the matrix. The concept of yielding in the interfacial area was proposed to explain the fracture mechanism of HDPE/CaCO3 blends. Three types of fracture behaviour were assumed to be dependent on the surface-to-surface interparticle distance: (1) cavitation and crazing; (2) coexistence of cavitation and yielding in the interfacial area; (3) interfacial area yielding and matrix yielding. Based on the results, the interface conditions for brittle-ductile transition and core-shell morphology of CaCO3 particles were discussed.
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页码：2397 / 2401
页数：5
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