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Synergetic reinforcements of epoxy composites with glass fibers and hyperbranched polymers
Author(s) -
Li Shuiping,
Wu Qisheng,
Cui Chong,
Zhu Huajun,
Hou Haijun,
Lin Qing,
Li Yanbo,
Lv Tingting
Publication year - 2018
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.24280
Subject(s) - materials science , composite material , epoxy , toughening , polyamide , ultimate tensile strength , flexural strength , thermosetting polymer , izod impact strength test , composite number , impact resistance , glass fiber , toughness
Glass fibers (GFs) and hyperbranched polymers with amino terminal groups (HBPA) were introduced into epoxy/polyamide system to fabricate high‐performance composites. The impact resistance and mechanical characterization of epoxy/HBPA/GFs composites was performed to investigate the effect of GFs in the composites. The composites revealed noticeable improvement in tensile strength, elongation at break, flexural strength as well as impact resistance in comparison with the unmodified and HBPA modified epoxy/polyamide thermosets. FESEM morphologies showed that the toughening mechanisms could be attributed to the yielding deformation, phase separation and micro‐crack toughening mechanisms. POLYM. COMPOS., 39:2871–2879, 2018. © 2017 Society of Plastics Engineers