文献类型：期刊文献

英文题名：CNT@LDH functionalized poly(lactic acid) membranes with super oil-water separation and real-time press sensing properties

作者：Liu, Wei Wu, Xian Liu, Shan Cheng, Xiaoqiong Zhang, Chun

第一作者：刘伟

通信作者：Zhang, C[1]|[14440f6a6d277849ce3bf]张纯;

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Norm Univ, Sch Mat & Construct, Guiyang, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：0

外文期刊名：POLYMER COMPOSITES

收录：;EI(收录号：20223212548796);Scopus(收录号：2-s2.0-85135437930);WOS:【SCI-EXPANDED(收录号:WOS:000836886300001)】；

基金：We acknowledge the support by Guizhou Provincial Science and Technology Projects (QianKeHeJiChu-ZK[2022]YiBan179), National Natural Science Foundation of China (52163011, 51863003), and Research Start-up Foundation for Advanced Talents of Guizhou Institute of Technology (XJGC20190657).

语种：英文

外文关键词：electrospinning; layered double hydroxide; oil-water separation; poly(lactic acid); press sensing

摘要：Controlling wettability is crucial to designing separation membrane with high performance. In order to achieve the goal, chain modification method is frequently utilized to optimize surface nature of raw materials. However, the development of the method is of significance but challenging due to the high processing cost and complexity. Herein, we developed a rough surface induction strategy to prepare poly(lactic acid) (PLA) membrane. Layered double hydroxides (LDH) were loaded with carboxylation carbon nanotubes (CNT), and the prepared CNT@LDH was surface modified with aminopropyltriethoxysilane. Then the CNT@LDH was blended with PLA to prepare composites and PLA electrospinning membranes. The morphology of synthesized CNT@LDH mimics "sea urchin" liked structure, which prevented the aggregation of LDH cubes, and induced an efficient conductive network. The combination of CNT@LDH greatly changed the membranes' porous structure, thermal stability, and crystallization properties. The hydrophilicity of PLA membranes increased 112.74%, whereas the pore size and fiber diameter decreased 76.43% and 79.56%, respectively. The oil absorption capacity of the composite membrane was up to 35 g/g with a high absorption speed. Meanwhile, the prepared PLA membrane had a quick response of press-sensing. This research provides a method for designing separation membranes with high separation efficiency, great selectivity, environment friendliness, and real-time pressure monitor function, which is considered as a potential material in intelligent oil-water separation or wearable electronics fields.