超高体积含量的碳基材料改性氰酸酯树脂的导电性能

Electrical conductivity of cyanate ester resin modified with highly loaded carbon-based materials

以氰酸酯树脂CE为基体,通过高温模压成型制备高导电碳基/氰酸酯复合材料,研究了树脂基体和复合材料的结构,及结构对材料的导电性能和热性能的影响。结果表明,MWCNT/CE和G N/C E复合材料在树脂基体中形成了交联网络结构,能够均匀的分散在氰酸酯树脂基体中,MWCNT和GN的协同作用比单独的MWCNT和GN填充CE树脂导电性好,GN/CE复合材料的热失重分析表明GN填充越多,越能有效提高复合材料的热性能。

The high electrical conductive carbon-based materials/cyanate ester（CE） resin composites were prepared by compression, molding under high temperature with CE resin as the matrix. The structures of the resin matrix and the composites and the effect of the structures on the electrical and thermal properties were investigated. The results showed that the multi walled carbon nanotubes（MNCNT） and grapheme nanoplateletes（GN） can be uniformly dispersed over the CE resin matrix; the crosslinked network structure was formed in the resin matrix of the MNCNT/CE and GN/CE resin-based composites on the account of synergistic effect; the electrical conductivity of the resin containing both MNCNT and GN was better, than that for containing only one of them. The TGA of the GN/CE composites indicated that loading of GN in the CE resin can efficiently increase the thermal performance of the composites.