文献类型：专利

英文题名：Preparation of ionic liquid modified graphite nanosheet/silicone rubber electric conduction composite material includes heating graphite oxide, mixing with ionic liquid, adding ethanol, dispersing, ball milling, drying and volatilizing

作者：HAN J;MA Y;XIE L;ZENG W;ZHANG H

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN103897405-A

申请日：2014-03-25

公开日：2014-07-02

语种：英文

收录：DERWENT

摘要：NOVELTY - Preparation of ionic liquid modified graphite nanosheet/silicone rubber electric conduction composite material comprises heating graphite oxide; mixing with ionic liquid, adding to pure ethanol solvent, ultrasonically dispersing, ball milling, drying; adding liquid silicone rubber crude adhesive, mixing, adding into n-hexane solvent, ultrasonically dispersing in 60-150 degrees C water bath, stirring, volatilizing to remove n-hexane solvent; adding curing agent, ultrasonically dispersing, heating under vacuum and curing. USE - Method for preparing ionic liquid modified graphite nanosheet/silicone rubber electric conduction composite material (claimed). DETAILED DESCRIPTION - Preparation of ionic liquid modified graphite nanosheet/silicone rubber electric conduction composite material comprises heating graphite oxide to 300-900 degrees C for 30-240 seconds to obtain expanded graphite; mixing expanded graphite and ionic liquid at a mass ratio of 1:1-2, adding to pure ethanol solvent to obtain 0.01-0.l g/ml solution, ultrasonically dispersing, ball milling for 0.5-24 hours, drying to obtain ionic liquid modified graphite nanosheet; adding 1-5 wt.% liquid silicone rubber crude adhesive, mixing, adding into n-hexane solvent to obtain 0.01-0.5 g/ml solution, ultrasonically dispersing in 60-150 degrees C water bath, stirring for 4 hours, volatilizing to remove n-hexane solvent; adding curing agent, ultrasonically dispersing at 60-150 degrees C, heating under vacuum, and curing for 1-24 hours. The ionic liquid is 1-butyl-3-methylimidazole hexafluorophosphate, 1-butyl-3-methylimidazole tetrafluoroborate, 1-ethyl-3-methylimidazole trifluoromethyl sulfonate amine salt, or 1-butyl-3-methylimidazole chloride. The silicone rubber is dimethyl vinyl silicone rubber or trimethylated dioxosilane. The curing agent is octamethyl cyclotetrasiloxane, orthosilicate or tetraorthosilicate or n-propyl orthosilicate together with micro organic tin. The mass ratio of liquid silicone rubber adhesive and curing agent is 10:1.