Preparation and properties of ethylene-acrylic acid copolymer modified epoxy/UHMWPE fiber composite

doi:10.19936/j.cnki.2096-8000.20240528.008

Abstract

Abstract: A novel composite based on ethylene-acrylic acid copolymer(EAA) modified epoxy, reinforced by ultra-high molecular weight polyethylene(UHMWPE) fiber, was manufactured by means of impregnating through aqueous emulsion. The influences of various EAA contents on composite characteristics in terms of wettability, thermal property of resin, mechanical property of composite, interface adhesion as well as fracture morphology were compared and discussed. The results indicated that the blend system could retain both strong adhesions to UHMWPE fiber attribute to EAA as well as presentable thermal properties due to the rigid epoxy crosslink network. Best comprehensive performances with inter-laminar shear strength of 8.7 MPa and flexural strength retention rate at 60 ℃ of near 80% were presented by the sample composed of 25% EAA proportion.

Key words: ethylene-acrylic acid copolymer, ultra-high molecular weight polyethylene fiber, composite, interface property, thermal property

CLC Number:

TB332

ZHOU Dianrui, WANG Weihan, GAO Liang, DU Yu, WU Tianyu, ZHANG Baoyan. Preparation and properties of ethylene-acrylic acid copolymer modified epoxy/UHMWPE fiber composite[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(5): 52-57.

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