参考文献/References
[1] Ha H W, Choudhury A, Kamal T, et al. Effect of chemical mo-dification of graphene on mechanical, electrical, and thermal properties of polyimide/graphene nanocomposites[J]. Acs Applied Materials & Interfaces,2012,4(9):4623.[2] Gunther P, Xia Zhongfu. Transport of detrapped charges in thermally wet grown SiO2 electrets[J]. Journal of Applied Physics,1993,74(12):7269-7274.
[3] Kim J T, Kim B K, Kim E Y, et al. Synthesis and shape memory performance of polyurethane/graphene nanocomposites[J]. Reactive & Functional Polymers,2014,74(1):16-21.
[4] Kang T H, Lee J M, Yu W R, et al. Two-way actuation behavior of shape memory polymer/ elastomer ore/shell composites[J]. Smart Material Structures,2012,21(3):5028-5034.