The effect of block copolymer and core-shell rubber hybrid toughening on morphology and fracture of epoxy-based fibre reinforced composites

被引：58

作者：

Klingler, Andreas ^{[1
]}

Bajpai, Ankur ^{[1
]}

Wetzel, Bernd ^{[1
]}

机构：

[1] Univ Kaiserslautern, Inst Verbundwerkstoffe GmbH IVW, Erwin Schroedinger Str,Bldg 58, D-67655 Kaiserslautern, Germany

来源：

ENGINEERING FRACTURE MECHANICS | 2018年 / 203卷

关键词：

Carbon fibre reinforced composites; Epoxy resins; Block copolymers; Interlaminar fracture toughness; Nanocomposites; ELASTOMER-MODIFIED EPOXIES; INDUCED PHASE-SEPARATION; MECHANICAL-PROPERTIES; TRIBLOCK COPOLYMERS; TOUGHNESS; NANOCOMPOSITES; BLENDS; NANOSTRUCTURES; PARTICLES; BEHAVIOR;

D O I：

10.1016/j.engfracmech.2018.06.044

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The toughening performance of hybridized core-shell rubber particles and block copolymers on bulk epoxy and epoxy based carbon fibre reinforced composites was investigated. The results reveal that the interlaminar fracture toughness of the fibre reinforced laminates increased by more than 300% due to an enhanced fibre-matrix adhesion because of a combination of BCP and CSR particles. However, no synergistic improvement of the fracture mechanics properties of the bulk materials was found. Thereby, the critical energy release rate of the bulk and fibre reinforced materials is related to the interparticle distance to particle size ratio of the modifiers in the bulk/matrix systems and the plastic zone size. Furthermore, the fibre volume content of the CFRP influences the final BCP phase morphology, and thus the fracture toughness.

引用

页码：81 / 101

页数：21