Overall goal of this research is to study the conductivity enhancement effect and its mechanism for different types of carbon-based nano-fillers/conduct polymer hybrids in carbon fiber reinforced polymer (CFRP). Multi-walled carbon nanotubes (MWCNT)/polyaniline (PANI) and graphene oxide (GO)/PANI hybrids were separately dispersed into divinylbenzene (DVB) to make the CFRP composites. The alternating current (AC) electrical conductivity results show that both, the binary MWCNT/PANI and GO/PANI hybrids have significant enhancement on AC conductivity, while MWCNT/PANI gives better improvement over GO/PANI hybrids. The mechanism for the conductivity enhancement was studied by SEM, XRD, UV–Vis and nanoindentor. Circuit models were proposed. The maximum AC conductivity of CFRP made of MWCNT/PANI was measured to be 22.4 S/m, which has been found to be enhanced by more than 3 orders of magnitude compared to CF/DVB. Thus, CF/MWCNT-PANI composites can be considered to be promising candidates for multifunctional material where high conductivity is demanded.

这项研究的总体目标是研究碳纤维增强聚合物（CFRP）中不同类型的碳基纳米填料/导电聚合物杂化物的电导率增强作用及其机理。将多壁碳纳米管（MWCNT）/聚苯胺（PANI）和氧化石墨烯（GO）/ PANI杂化物分别分散到二乙烯基苯（DVB）中，制成CFRP复合材料。交流电（AC）电导率结果表明，二元MWCNT / PANI和GO / PANI杂化物均具有显着的交流电导率增强，而MWCNT / PANI比GO / PANI杂化物具有更好的改善。通过SEM，XRD，UV-Vis和纳米压痕仪研究了提高电导率的机理。提出了电路模型。测得由MWCNT / PANI制成的CFRP的最大交流电导率为22.4 S / m，与CF / DVB相比，已发现其增强了3个数量级以上。因此，CF / MWCNT-PANI复合材料可以被认为是要求高导电性的多功能材料的有前途的候选材料。