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Study on mechanical properties of modified hollow glass bead/epoxy resin composites

Jiangang Zhou

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Abstract

The surface of hollow glass beads was modified with coupling agent.After treating with ultrasonic,the beads could dispersed uniformly and stablely in epoxy.The compatibility of hollow glass beads in epoxy was improved.The influence of the modified hollow glass beads on the mechanical properties of epoxy was studied.The results showed that the tensilie strength,impact strength and KIC(fracture toughness) of the composites reached the maximam when the addition of modified hollow glass bead was 3%.The strength indexes were 68.54 MPa,24.42 kJ/m2 and 2.338 MPa/m2 increased by 20.3%,166% and 127% than that of the pure epoxy system respectively.The toughening effect was obviously.

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What this paper is about

The surface of hollow glass beads was modified with coupling agent.After treating with ultrasonic,the beads could dispersed uniformly and stablely in epoxy.The compatibility of hollow glass beads in epoxy was improved.The influence of the modified hollow glass beads on the mechanical properties of epoxy was studied.The results showed that the tensilie strength,impact strength and KIC(fracture toughness) of the composites reached the maximam when the addition of modified hollow glass bead was 3%.The strength indexes were 68.54 MPa,24.42 kJ/m2 and 2.338 MPa/m2 increased by 20.3%,166% and 127% than that of the pure epoxy system respectively.The toughening effect was obviously.

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Available abstract

The surface of hollow glass beads was modified with coupling agent.After treating with ultrasonic,the beads could dispersed uniformly and stablely in epoxy.The compatibility of hollow glass beads in epoxy was improved.The influence of the modified hollow glass beads on the mechanical properties of epoxy was studied.The results showed that the tensilie strength,impact strength and KIC(fracture toughness) of the composites reached the maximam when the addition of modified hollow glass bead was 3%.The strength indexes were 68.54 MPa,24.42 kJ/m2 and 2.338 MPa/m2 increased by 20.3%,166% and 127% than that of the pure epoxy system respectively.The toughening effect was obviously.

Key concepts: Materials science, Epoxy, Composite material, Bead, Toughness, Toughening, Fracture toughness, Glass microsphere

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