Research on Synthesis and Properties of a Flexible Epoxy Curing Agent

Xi Wang

doi:10.4028/www.scientific.net/AMM.744-746.1463

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 744-746Research on Synthesis and Properties of a Flexible...

Research on Synthesis and Properties of a Flexible Epoxy Curing Agent

Abstract:

This paper presents the synthesis of a new type of flexible epoxy curing agent and an approach to improve the toughness of epoxy resin by curing without reducing the strength and modulus of the resin-cured material. The results show that the degree of toughness reaches maximum values when the flexible curing agent is applied at weight percentages (wt.%) between 10% and 15%. When the amount of flexible curing agent added to epoxy resin weight is 10wt.%, the impact toughness and fracture toughness increases by 33.3% and 96.3%, respectively, compared with the pure epoxy resin. When the amount of flexible curing agent added to epoxy is 10wt.%, the resulting impact thoughness of the material is 19.5 kJ•m-2 at-50°C, the impact toughness of pure epoxy resin is only 7.96 kJ•m-2.

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Periodical:

Applied Mechanics and Materials (Volumes 744-746)

Pages:

1463-1466

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.744-746.1463

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Online since:

March 2015

Authors:

Xi Wang*

Keywords:

Epoxy Resin, Flexible Curing Agent, Fracture Toughness, Toughening Mechanism

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