The curing characteristic of the CYD-128(epoxy resin) and GA-327(curing agent) system with or
without glass fibre was investigated. The results indicated that the apparent activation energy,pre鄄exponential factor,
reaction order, and reaction rate constant of composites system inlarged in a samll scale after the glass fiber was add鄄
ed. The exotherm area and the reaction heat decreased markedly, and the falling range increased with the increasing
fiber weight content. Under the same heating rate, the maximal cure reaction rate of the composites system decreased,
and the cure start temperature decreased, and the time for achieving the maximal cure reaction rate was retarded, so
the cure reaction time increased. Under 170益, the catalytic action of glass fiber reacted on the resin system. Howev鄄
er, over 170益, delayed action of glass fiber reacted on the resin system.