Composite materials based on modified epoxy resin and carbon fiber

Journal of the Brazilian Chemical Society

Viviane Gonçalez¹  Fabio L. Barcia¹  Bluma G. Soares¹ 

[1] ,Universidade Federal do Rio de Janeiro Centro de Tecnologia Instituto de MacromoléculasRio de Janeiro RJ ,Brazil

关键词: carbon fiber;    epoxy resin;    polybutadiene;    impact modifier;    composites;   

DOI  :  10.1590/S0103-50532006000600008

来源: SciELO

【 摘 要 】

Epoxy resin networks have been modified with block copolymer of polybutadiene and bisphenol A diglycidyl ether (DGEBA)-based on epoxy resin. The epoxy resin modified with carboxyl-terminated polybutadiene presented improved impact resistance and outstanding mechanical performance in terms of flexural and tensile properties because of the presence of rubber particles homogeneously dispersed inside the epoxy matrix. This modified system also resulted in an improvement of mechanical properties of the corresponding carbon fiber based composites. The outstanding properties were attributed to a better interaction fiber-matrix, as indicated by SEM micrographs.

【 授权许可】

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