Deformation and fracture of glass bead/CTBN-rubber/epoxy composites

Document identifier:
Access full text here:10.1002/pen.760330208
Keyword: Engineering and Technology, Materials Engineering, Composite Science and Engineering, Teknik och teknologier, Materialteknik, Kompositmaterial och -teknik, Polymera konstruktionsmaterial, Polymeric Composite Materials
Publication year: 1993
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Carboxyl-terminated butadiene-acrylonitrile-rubber decreases modulus and yield stress of the studied epoxy but increases fracture toughness. The addition of glass bead compensates for the loss in modulus but has little effect on yield stress. However, it significantly contributes to the fracture toughness by providing additional mechanisms for toughening of both the unmodified and rubber-modified epoxy. For the toughened epoxies studied, fracture surfaces gave only limited information on fracture mechanisms since significant energy absorption also occurs in the material below the fracture surface. Suggestions for suitable material compositions for fiber composite matrices are given.


H. Zhang

Luleå tekniska universitet
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Lars A. Berglund

Luleå tekniska universitet
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