褶皱石墨烯微球制备与浸润性调控及其丙酮感知研究OA北大核心
Folded graphene microsphere preparation and wettability modulation and its acetone sensing study
为了增加表面粗糙度,获得超疏水复合材料,本文引入水-丙酮的二元溶剂,探究氧化石墨烯(GO)在二元溶剂中的分散与蒸发,而后通过喷雾油炸法,得到褶皱石墨烯微球(FGO),探究溶剂组分对浸润性的影响,最后将FGO与聚二甲基硅氧烷(PDMS)复合,制成对丙酮敏感的超疏水传感器.结果表明:在二元溶剂中,水的组分为20％时,GO在其中分散良好并且有不错的蒸发率,得到的FGO接触角为149.1°;制备的复合材料结合良好,具备150.2°的超疏水性能,同时能在丙酮浓度为0.03～0.075 mol/L时具有良好感知性能,灵敏度达到115(mol/L)-1.
For the purpose of increasing the surface roughness to obtain superhydrophobic composites,this paper introduced a binary solvent of water-acetone to investigate GO dispersion and evaporation in the binary sol-vent.Later on,by spray frying method,FGO were obtained to investigate the effect of solvent components on the wettability.Finally,FGO was compounded with PDMS to make an acetone-sensitive superhydrophobic sensor.The results show that GO is well dispersed and has a good evaporation rate in a binary solvent with a 20％water fraction,and the obtained FGO has a contact angle of 149.1°.The prepared composites have good bonding and superhydro-phobicity of 150.2°,as well as good sensing performance at acetone concentrations of 0.03～0.075 mol/L,with a sensitivity of 115(mol/L)-1.
汪瑞;梅启林;丁国民;陈述慧;徐建蓉;姜端洋
武汉理工大学材料科学与工程学院,武汉 430070
丙酮褶皱石墨烯微球复合材料超疏水传感器
acetonefolded graphene microspherescomposite materialssuperhydrophobic sensors
《复合材料科学与工程》 2024 (004)
14-19 / 6
国家自然科学基金项目(52003120);中央高校基本科研业务费专项资金(2022IVA004);江苏省"双创计划"项目;湖北省自然科学基金一般面上项目(2022CFB384)
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