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Effect of polyarylene ether nitriles on processing and mechanical behaviors of phthalonitrile‐epoxy copolymers and glass fiber laminated composites
Author(s) -
Zhao Xin,
Guo Heng,
Lei Yajie,
Zhao Rui,
Zhong Jiachun,
Liu Xiaobo
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.38089
Subject(s) - phthalonitrile , materials science , composite material , epoxy , copolymer , glass fiber , curing (chemistry) , flexural strength , composite number , thermosetting polymer , fiber , ether , izod impact strength test , ultimate tensile strength , polymer , chemistry , organic chemistry , phthalocyanine , nanotechnology
A series of copolymers and glass fiber composites were successfully prepared from 2,2‐bis [4‐(3,4‐dicyanophenoxy) phenyl] propane (BAPh), epoxy resins E‐44 (EP), and polyarylene ether nitriles (PEN) with 4,4′‐diaminodiphenyl sulfone as curing additive. The gelation time was shortened from 25 min to 4 min when PEN content was 0 wt % and 15 wt %, respectively. PEN could accelerate the crosslinking reaction between the phthalonitrile and epoxy. The initial decomposition temperatures ( T i ) of BAPh/EP copolymers and glass fiber composites were all more than 350°C in nitrogen. The T g of 15 wt % PEN glass fiber composites increased by 21.2°C compared with that of in comparison with BAPh/EP glass fiber composite. The flexural strength of the copolymers and glass fiber composites reached 119.8 MPa and 698.5 MPa which increased by 16.6 MPa and 127.3 MPa in comparison with BAPh/EP composite, respectively. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013