Modification of Epoxy Resins with Epoxide-Containing Acrylic Copolymers

1 August 1998

journal article
Published by China Science Publishing & Media Ltd. in Chinese Journal of Applied Chemistry

Vol. 15 (4) , 9-12
https://doi.org/10.3724/j.issn.1000-0518.1998.4.912

Abstract

A series of epoxide-containing acrylic polymer modifiers (HGMB) were synthesized.The dynamic mechanical behavior and impact strengths of the modified systems,epoxy resin E-51/4, 4'-diaminodiphenylmethane (DDM)/HGMB, were investigated.Theresults showed that both the structure and amount of the modifiers affected the impactstrength and modulus of the modified systems significantly.The addition of 15%(mass fraction) HGMB(4.3% glycidyl methacrylate(GMA), 5 % hydroxyethyl methacrylate(HEMA),25.7% methyl methacrylate (MMA) and 65 % butyl acrylate (BA) (mole fraction)) resultedin a 50% increase in impact strength and an obvious increase in Tg of the modified system butonly little loss of its modulus.

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