Morphology and mechanical properties of amine‐terminated butadiene‐acrylonitrile/epoxy blends
作者:
E. Butta,
G. Levita,
A. Marchetti,
A. Lazzeri,
期刊:
Polymer Engineering&Science
(WILEY Available online 1986)
卷期:
Volume 26,
issue 1
页码: 63-73
ISSN:0032-3888
年代: 1986
DOI:10.1002/pen.760260111
出版商: Society of Plastics Engineers
数据来源: WILEY
摘要:
AbstractMorphology and mechanical properties of (amine terminated butadiene acrylonitrile rubber/diglycidyl ether of bis‐phenol‐A epoxy resin) blends of different compositions, cured in wide range of temperatures, are described. Curing at low temperature promoted formation of homogeneous materials with poor fracture resistance. On the contrary, at high temperature tough heterogeneous blends were obtained. Such blends showed phase inversion above 20 percent of rubber. The volume fraction of precipitated phase, determined on SEM micrographs, was higher than the amount of added rubber. A fracture mechanism to account for this is proposed. Extensive voiding and interface damage were observed in the low temperature cured materials. Such phenomena did not contribute to the fracture ene
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