复合材料科学与工程 ›› 2024, Vol. 0 ›› Issue (4): 14-19.DOI: 10.19936/j.cnki.2096-8000.20240428.002

• 基础研究 • 上一篇    下一篇

褶皱石墨烯微球制备与浸润性调控及其丙酮感知研究

汪瑞, 梅启林*, 丁国民, 陈述慧, 徐建蓉, 姜端洋   

  1. 武汉理工大学 材料科学与工程学院,武汉 430070
  • 收稿日期:2023-03-08 出版日期:2024-04-28 发布日期:2024-04-28
  • 通讯作者: 梅启林(1970—),男,教授,主要从事树脂基复合材料方面的研究,meiqilin@whut.edu.cn。
  • 作者简介:汪瑞(1998—),男,硕士研究生,主要从事高分子复合材料方面的研究。
  • 基金资助:
    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)

Folded graphene microsphere preparation and wettability modulation and its acetone sensing study

WANG Rui, MEI Qilin*, DING Guomin, CHEN Shuhui, XU Jianrong, JIANG Duanyang   

  1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
  • Received:2023-03-08 Online:2024-04-28 Published:2024-04-28

摘要: 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

关键词: 丙酮, 褶皱石墨烯微球, 复合材料, 超疏水传感器

Abstract: 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 solvent. 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 superhydrophobicity 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.

Key words: acetone, folded graphene microspheres, composite materials, superhydrophobic sensors

中图分类号: