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采用水合肼(85%)对膨胀石墨进行还原改性,制得导电性能良好的还原石墨。以还原石墨、环氧树脂(EP)、三乙醇胺及活性添加剂(自制)复合制备还原石墨导电胶系列。通过傅里叶红外(FT-IR)分析确定了该还原石墨导电胶系列的适宜固化条件,运用多种检测手段对导电胶的导电性能、力学性能和热学性能等进行分析,利用X-射线能谱仪对还原石墨的表面含氧量进行考察。研究结果表明,该还原石墨导电胶系列的适宜固化条件为120℃×180 min,体积电阻率为0.3439～1.4877Ω·cm,拉伸剪切强度为12.3～19.7 MPa;该导电胶可在不超过300℃的环境下使用,具有巨大的市场潜力和广阔的工业应用前景。
Hydrazine hydrate (85%) of the expanded graphite reduction modified to obtain good conductive graphite. Graphite, epoxy resin (EP), triethanolamine and active additives (self-made) composite reduction graphite conductive adhesive series. The appropriate curing conditions of the reduced graphite conductive adhesive series were determined by Fourier transform infrared (FT-IR) analysis. The conductivity, mechanical properties and thermal properties of the conductive adhesive were analyzed by a variety of testing methods. X-ray energy Spectrometer on the reduction of graphite surface oxygen content were investigated. The results show that the suitable conditions for the reduction of graphite conductive adhesive series is 120 ℃ × 180 min, the volume resistivity of 0.3439 ~ 1.4877Ω · cm, tensile shear strength of 12.3 ~ 19.7 MPa; the conductive adhesive can not exceed 300 ℃ environment, with great market potential and broad prospects for industrial applications.