Properties of epoxy resins cured with ring‐alkylated  m ‐phenylene diamine blends | Zendy

Storey Robson F. | Zendy; Dantiki Sudhakar | Zendy; Adams J. Patrick | Zendy

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Properties of epoxy resins cured with ring‐alkylated m ‐phenylene diamine blends

Author(s) -

Storey Robson F.,

Dantiki Sudhakar,

Adams J. Patrick

Publication year - 1990

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.1990.070400105

Subject(s) - materials science , glass transition , differential scanning calorimetry , diamine , diglycidyl ether , epoxy , acrylonitrile , ultimate tensile strength , eutectic system , ether , composite material , benzene , bisphenol a , natural rubber , polymer chemistry , copolymer , polymer , chemistry , organic chemistry , microstructure , physics , thermodynamics

Diglycidyl ether of bisphenol‐A was cured, individually, with diaminoisopropyl benzene (DAIPB), diaminoethyl benzene (DAEB), blends of DAIPB/DAEB (up to 40 wt % DAEB), and DAIPB modified with up to 5 wt % amine‐terminated poly(butadiene‐co‐acrylonitrile) liquid rubber (ATBN). For each diamine system glass transition temperature (differential scanning calorimetry) and room temperature tensile properties (Instron) were determined. Blends of DAIPB/DAEB produced cured resins displaying greatly increased tensile strength (up to 50% higher) and slightly lower glass transition temperature compared with resins cured with either diamine alone. DAIPB modified with ATBN yielded moderately improved tensile properties over DAIPB alone. Blends of DAIPB/DAEB (from 10 to 40 wt % DAEB) were observed to be eutectic liquids at room temperature.

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