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High performance modification of hyperbranched polyborate on diglycidyl ether of bisphenol‐a resin
Author(s) -
Xu Peijun,
Cong Peiliang,
Gao Zhao,
Du Ming,
Wang Zhipeng,
Chen Shuanfa
Publication year - 2015
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22956
Subject(s) - diglycidyl ether , epoxy , materials science , bisphenol a , composite material , glass transition , thermosetting polymer , flexural strength , char , bisphenol , toughness , dynamic mechanical analysis , ether , polymer chemistry , polymer , organic chemistry , chemistry , pyrolysis
High performance epoxy resin was obtained by introducing hyperbranched polyborate (HBPB) into diglycidyl ether of bisphenol A (DGEBA) resin to overcome the defects such as low char yield and poor toughness of DGEBA resin. By virtue of the massive functional end groups, hyperbranched and rigid boron‐containing structures of HBPB, the thermal resistance of DGEBA resin cured with diamino diphenyl sulfone (DDS) can be greatly improved. Moreover, with the toughening effect of hyperbranched structures of HBPB, the mechanical properties such as flexural strength and interlaminar shear strength of the carbon fiber reinforced DGEBA‐DDS composite could be greatly increased by HBPB without a decrease on modulus and glass transition temperature of DGEBA‐DDS resin. POLYM. COMPOS. 36:424–432, 2015. © 2014 Society of Plastics Engineers