Quick cure carbon fiber reinforced epoxy resin
    1.
    发明公开
    Quick cure carbon fiber reinforced epoxy resin 有权
    SchnellhärtendeskohlenstofffaserverstärktesEpoxydharz

    公开(公告)号:EP1279688A1

    公开(公告)日:2003-01-29

    申请号:EP02254964.6

    申请日:2002-07-15

    摘要: An epoxy composition includes an epoxy resin, a latent amine curing agent and a specific catalyst. Preferably, the epoxy resin includes two epoxide groups per molecule, and the latent amine curing agent is a dicyanopolyamide, most preferably, dicyandiamide. The specific catalyst is 2,4-toluene bis dimethyl urea. A prepreg employing the epoxy composition of the present invention can achieve a 95% cure in about one half of the time required by a prepreg that differs only in the catalyst employed. Furthermore, prepregs employing the epoxy composition of the present invention have glass transition temperatures higher than the curing temperatures when cured at a temperature range from about 80° C to about 150° C, enabling cured prepregs to be removed from molds without being cooled.

    摘要翻译: 环氧组合物包括环氧树脂,潜胺胺固化剂和特定催化剂。 优选地,环氧树脂每分子包含两个环氧基团,潜胺胺固化剂是二氰基多胺,最优选双氰胺。 特定的催化剂是2,4-甲苯二甲基脲。 使用本发明的环氧组合物的预浸料可以在仅使催化剂不同的预浸料所需的时间的约一半的时间内达到95%的固化。 此外,使用本发明的环氧组合物的预浸料坯在约80℃至约150℃的温度范围内固化时具有高于固化温度的玻璃化转变温度,使得固化的预浸料坯能够从模具中除去而不被冷却。