Toughened high performance epoxy resin system for aerospace applications

被引：20
作者：
Fischer, Frank [1 ]
Beier, Uwe [1 ]
Wolff-Fabris, Felipe [1 ]
Altstaedt, Volker [1 ]
机构：
[1] Univ Bayreuth, Dept Polymer Engn, D-95447 Bayreuth, Germany
来源：
SCIENCE AND ENGINEERING OF COMPOSITE MATERIALS | 2011年 / 18卷 / 04期
关键词：
block copolymer; epoxy; fatigue crack propagation; fracture toughness; morphology; RUBBER-MODIFIED EPOXIES; PHASE-SEPARATION; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; MORPHOLOGY; BLENDS; MISCIBILITY; COMPOSITE;
D O I：
10.1515/SECM.2011.042
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The present study describes the results of a detailed investigation of the fracture toughness and fatigue crack growth behaviour of epoxy resins used for aeronautic applications. More specifically, the influence of incorporating thermoplastic or triblock copolymers to neat resin in order to increase the toughness is evaluated. The experimental results deduced from static as well as dynamic loading conditions highlight the varying degree of effectiveness of the chosen toughening approaches. In combination with electron microscopic analysis of the fracture surfaces, the basic structure-property relationships and deformation mechanisms are presented and the different strategies to improve the fatigue behaviour are discussed.
引用
收藏
页码：209 / 215
页数：7
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