摘要
采用改进的Hummers法制备了氧化石墨烯并涂覆于PET基底上,分别采用紫外光照射和HI还原法对若干组膜进行还原,控制还原温度和时间,通过扫描电镜观察每组膜的表面,将还原后膜的红外光谱、XPS谱图与氧化石墨烯的谱图比对,并采用四探针法计算出每片膜的方块电阻。结果表明:紫外光照射处理后的膜表面要比HI处理后的表面光滑,但电阻很高,红外谱图显示还原效果不佳;碘化氢80℃下还原2.0 h所得膜的红外谱图显示含氧官能团基本全部还原,还原效果好,膜方块电阻为(2.35±0.19)Ω/sq,在施以直流电压2.5 V、电流0.45 A的条件下,通电发热温度可达37.1℃,有望用于电致发热材料。
Graphene oxide was prepared by improved Hummers method and was coated on PET substrate.Several groups of films were reduced by ultraviolet irradiation and hydrogen iodide(HI)reduction method respectively.The reduction temperature and time were controlled.The film surface of each group was observed by scanning electron microscope.That of the reduced film were compared with the infrared and XPS spectra of the graphene oxide,and the sheet resistance of each film was calculated by a four-probe method.The results show that the film surface after ultraviolet irradiation treatment is smoother than that after hydrogen iodide treatment,but the sheet resistance is quite higher after hydrogen iodide treatment,and the infrared spectrum shows a poor reduction effect for ultraviolet irradiation treatment.After reduction by hydrogen iodide at 80℃for 2.0 h,the infrared and XPS spectra of the film show that the oxygen-containing functional group is almost completely reduced,and the reduction effect is good.And its sheet resistance is 2.35±0.19Ω/sq.Under the condition of applying DC voltage of 2.5 V and current of 0.45 A,the heating temperature can reach 37.1℃,so it is expected to be used as the electrothermal material.
作者
齐凯
龚䶮
李昕
罗胜利
张宇群
沈文东
陈清清
QI Kai;GONG Yan;LI Xin;LUO Sheng-li;ZHANG Yu-qun;SHEN Wen-dong;CHEN Qing-qing(School of Materials Science and Engineering,Beijing Key Laboratory of Clothing Materials R&D and Assessment,Beijing Engineering Research Center of Textile Nanofiber,Beijing Institute of Fashion Technology,Beijing 100029,China;Guangzhou Fiber Product Testing and Research Institute,Guangzhou,511447,China;Jiangsu Jonnyma New Materials Co.,LTD.,Nanjing 226400,China)
出处
《北京服装学院学报（自然科学版）》
CAS
北大核心
2020年第1期14-20,共7页
Journal of Beijing Institute of Fashion Technology：Natural Science Edition
基金
国家自然科学基金项目(51873003)
北京市教委科技重点项目(KZ201910012015)
北京市朝阳区协同创新项目(CYXC1718)
北京服装学院高水平教师队伍建设专项资金(BIFTXZ201802)
北京市属高等学校高层次人才引进与培养计划项目-北京市长城学者培育计划(CTT&TCD20180321)
关键词
氧化石墨烯
紫外光照
碘化氢还原
方块电阻
电致发热膜
graphene oxide
ultraviolet irradiation
reduction of hydrogen iodide
sheet resistance
electrothermal film
