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Study of epoxy resin—filler interaction
Author(s) -
Petrović Zoran,
Stojaković Nikola
Publication year - 1988
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.750090107
Subject(s) - materials science , epoxy , phthalic anhydride , composite material , filler (materials) , glass transition , bisphenol a , polymer , organic chemistry , catalysis , chemistry
A bisphenol‐type epoxy resin cured with phthalic anhydride was filled with three types of SiO 2 (untreated, silanized and smaller particle size), CaCO 3 , dolomite and Al 2 O 3 . Also, the concentration of silica was varied. Interaction of filler and resin was estimated by measuring the glass transition temperature ( T g ) by different methods. Electron microscopy and x‐ray diffraction were used to study the structure of the boundary layer and the bulk polymer. It was found that silica forms strong bonds with the resin and that basic fillers (CaCO 3 , Al 2 O 3 ) probably affect the crosslinking process with anhydride as hardener causing lowering of T g .