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Curing studies on modified epoxy and unsaturated polyester resins
Author(s) -
Shukla Arvind,
Rao R. M. V. G. K.
Publication year - 1984
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.1984.070290510
Subject(s) - epoxy , curing (chemistry) , thermosetting polymer , materials science , composite material , polyester , gelcoat , unsaturated polyester , polyester resin
Experimental studies were carried out on the curing behavior of unsaturated polyester and epoxy resins. The latter were modified with three different fillers (CaCO 3 , CaSiO 3 , and glass powder) and their curing behaviors studied. Polyesters exhibited faster cure rates than the epoxy resins. The gel time of the epoxy resins decreased with the addition of fillers. Data indicated that the peak exotherm of these thermosetting resins increased when filled with glass powder. The hardness of the curing mass increased with curing time. The use of gel‐hardness number as a quality control parameter has been suggested.