基于甘蔗渣多孔碳的超疏水棉织物制备及其性能  

Preparation and property analysis of superhydrophobic cotton fabric based on bagasse porous carbon

作　　者：张应秀 徐丽慧[1,2] 潘虹 姚程健 赵红 窦梅冉 沈勇 赵诗怡[1] ZHANG Yingxiu;XU Lihui;PAN Hong;YAO Chengjian;ZHAO Hong;DOU Meiran;SHEN Yong;ZHAO Shiyi(School of Textiles and Fashion,Shanghai University of Engineering Science,Shanghai 201620,China;National Innovation Center for Advanced Printing and Dyeing Technology,Tai′an,Shandong 271000,China)

机构地区：[1]上海工程技术大学纺织服装学院,上海201620 [2]国家先进印染技术创新中心,山东泰安271000

出　　处：《纺织学报》2024年第10期161-169,共9页Journal of Textile Research

基　　金：上海市自然科学基金项目面上项目(21ZR1426200);国家先进印染技术创新中心科研基金项目(2022GCJJ22);国家自然科学基金项目(51703123);上海高校特聘教授岗位计划资助项目(0239-A2-8912-22-0105)。

摘　　要：针对目前超疏水材料制备原料成本较高的问题,以农林废弃物甘蔗渣为主要原料采用高温炭化活化法制备了多孔碳,并将甘蔗渣基多孔碳(BPC)与低表面能物质聚二甲基硅氧烷(PDMS)结合构筑超疏水功能棉织物。研究了活化温度和活化剂用量对BPC结构和微观形貌的影响,评价了BPC和PDMS质量分数对整理棉织物疏水性能的影响。结果表明:当活化温度为700℃,且BPC和活化剂质量比为1∶4时,制备的BPC比表面积达到1 614.25 m^(2)/g,且石墨化程度较高,表面具有粗糙结构且微孔分布最多;PDMS为棉织物提供低表面能的同时,能够将BPC牢固黏结在棉织物表面;当PDMS质量分数为3%,BPC质量分数为0.2%时,所构筑的棉织物超疏水性能较好,静态水滴接触角可达162.2°,实现了超疏水棉织物的优异自清洁、防水抗污性能。Objective Superhydrophobic materials have a wide range of applications with their unique properties.However,the preparation often involves fluorine-containing materials,organic solvents,an so on,which are expensive and cause pollution,seriously limiting their applications.Therefore,it is important to develop environmentally friendly and low-cost materials to prepare superhydrophobic materials through simple preparation processes.Method Porous carbon based on bagasse was prepared by high-temperature carbonization and activation.After pretreatment(80℃,drying for 12 h),bagasse was calcined at 650℃for 20 min under N 2 flow to obtain carbonized bagasse(CB).Different proportions of CB and KOH were mixed and grinded,and the mixture was then heated in a nitrogen atmosphere to activate CB.The obtained black particles were washed with HCl and deionized water and dried at 80℃to prepare bagasse-based porous carbon(BPC).The prepared BPC and low surface energy substance polydimethylsiloxane(PDMS)were applied to cotton fabric,which is a process known as BPC/PDMS treatment of cotton fabric.Results The BPC was fabricated via a high-temperature carbonization method,achieving a remarkable specific surface area of 1614.25 m^(2)/g.Notably,the BPC-800℃exhibited a high degree of graphitization with an I D/I G ratio of 0.76.When the activation temperature was set at 700℃and the BPC to KOH ratio was 1∶4,the BPC surface displayed an optimal rough structure with an abundant microporous network.By employing a simple impregnation method,the prepared BPC and the low surface energy substance PDMS were coated onto the cotton fabric,resulting in the BPC/PDMS treatment of cotton fabric.The influence of varying BPC and PDMS concentrations on the hydrophobic properties of the finished fabric was investigated and the results revealed that the surface contact angle of the BPC/PDMS cotton fabric peaked at 162.2°when the PDMS concentration was 3%and the BPC concentration was 0.2%.The combination of BPC and PDMS imparted the fabric with a r

关 键 词：甘蔗渣基多孔碳 聚二甲基硅氧烷 超疏水 棉织物 自清洁性能 防水抗污性能 

分 类 号：TS195[轻工技术与工程—纺织化学与染整工程]