The Influence of the Rubber Carboxyl Functionality on the Processability and Properties of Solid Rubber Modified Epoxy Mixtures
作者： Clelia Dispenza , Giuseppe Spadaro , Patrick T. McGrail
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摘要: A high molecular weight, carboxyl functionalised solid rubber was added to an epoxy resin-aromatic amino system developed for autoclave curing of honeycomb core composite structures. The achievement optimal balance viscous flow and viscoelasticity the resin, by controlling nature extent cross-linking rubber, proposed as a route void-free skins. aim present investigation is understand how concentration carboxylic groups prereacted with one monomers, affects matrix resin properties. changed reacting them monofunctional resin. Dynamic shear viscosity profiles varying frequency, temperature function time during isothermal cure have been determined blends differently rubbers. Carbon fibre wettability laminate consolidation quality evaluated, making samples according conventional prepregging processes, through electron microscopy fracture surfaces from transverse flexural strength tests.
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