摘要
采用超声氧化剥离法制备氧化石墨烯(GO),通过浸轧-还原法得到一种高效、简单制备还原氧化石墨烯(RGO)导电棉织物的方法。探讨了GO质量浓度、GO溶液pH、还原条件、浸轧-还原次数等因素对RGO整理棉织物表面电阻的影响,采用SEM和Raman光谱对整理棉织物进行表征。结果表明,棉织物用质量浓度2.5 g/L、pH=6的GO溶液浸轧后,再用质量浓度5.0 g/L的保险粉于90℃对浸轧GO烘干后的棉织物还原30 min,得到的整理棉织物表面电阻降低至2220?,经过4次和8次浸轧-还原后棉织物表面电阻可分别降低至0.22和0.13 k?。通过SEM观察整理棉织物发现,RGO能在棉纤维表面形成薄膜并包覆纤维,且随着浸轧-还原次数的增加,棉织物表面沉积的RGO逐渐增多。Raman光谱较好地证实了GO在棉织物表面的沉积,且GO较充分地还原成RGO。通过对整理棉织物的耐洗性能测试发现,整理织物的导电耐久性较好。
Graphene oxide(GO)was prepared by ultrasonic oxidation stripping method.A highly efficient and simple method for the preparation of reduced graphene oxide(RGO)conductive cotton fabrics was developed,in which,the cotton fabrics was immersed by GO solution,then,the GO padded cotton fabrics was dried,finally the reduced graphene oxide(RGO)coated conductive cotton fabrics was obtained by chemical reduction.The effects of GO mass concentration,GO solution p H value,reduction condition,padding-reduction times on the surface resistance of cotton fabrics were investigated.The treated cotton fabrics were characterized by SEM and Raman spectra.The results showed that the optimal conditions were obtained as follows:GO mass fraction of 2.5 g/L,pH value of GO solution of 6,sodium hydrosulfite mass fraction of 5.0 g/L,reduced temperature 90℃and reaction time 30 min.Under these conditions,the surface resistance of the treated cotton fabrics was decreased to 2220?,0.22 k?and 0.130 k?after 4 and 8 times of padding-reduction process,respectively.SEM results revealed that RGO could form film on the surface of cotton fiber and cover the fiber,and with the increase of the number of padding reduction,the deposition of RGO on the surface of cotton fabrics increased gradually.Raman spectra results showed that GO was deposited on the surface of cotton fabrics and fully reduced to RGO.Moreover,the conductive durability of the treated fabric was excellent.
作者
黄海涛
HUANG Haitao(School of Textile,Henan University of Engineering,Zhengzhou 450007,Henan,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2020年第10期2132-2137,共6页
Fine Chemicals
基金
河南省高等学校重点科研项目(18B540001)。
关键词
氧化石墨烯
棉织物
导电性
还原
浸轧
纺织染整助剂
graphene oxide
cotton fabrics
conductivity
reduction
padding
dyeing and finishing auxiliaries
