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采用热还原的方法由氧化石墨烯(GO)制备得到还原石墨烯(RGO),并将两种石墨烯与热塑性聚氨酯(TPU)复合制得纳米复合材料薄膜。进而考察了两种纳米复合材料薄膜的导电、导热及力学性能。结果表明:在TPU中加入GO能够得到高导热、低导电的纳米复合材料,而加入RGO则得到高导热、高导电的纳米复合材料;同时,GO和RGO的加入,均能显著提高TPU的拉伸强度和模量。
Reduced graphene (RGO) was prepared from graphene oxide (GO) by thermal reduction method, and two kinds of graphene were compounded with thermoplastic polyurethane (TPU) to obtain nanocomposite films. Then the conductivity, thermal conductivity and mechanical properties of two nanocomposite films were investigated. The results show that adding GO to TPU can obtain nano-composite with high thermal conductivity and low conductivity, while adding RGO can obtain nano-composite with high thermal conductivity and high electrical conductivity. Meanwhile, the addition of GO and RGO both can significantly improve the tensile strength Tensile strength and modulus.