Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in polymeric matrix
申请人:UT-Battelle, LLC
公开号:US10240011B2
公开(公告)日:2019-03-26
A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said cros slinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.
一种功能化碳纤维,其表面共价结合了一种含有环氧基团的上浆剂,其中至少有一部分与交联分子以共价键结合,其中每个交联分子都具有至少两个环氧反应基团和至少一个与碳纤维所结合的聚合物基体的官能团反应的自由官能团、其中,至少有一部分所述交联分子通过至少两个环氧反应基团参与上浆剂的至少两个环氧基团之间的交联键。此外,还介绍了由嵌入聚合物基体中的这些功能化碳纤维组成的复合材料。此外,还介绍了生产功能化碳纤维及其复合材料的方法。