文献类型：期刊文献

中文题名：HEC/PEDOT PSS增强增韧水凝胶的构筑及传感应用

英文题名：Construction of HEC/PEDOT PSS Reinforced Toughened Hydrogels and Sensing Applications

作者：赵梦珂[1,2] 吴珽[1,2,3] 王晓法[1] 梁龙[1] 雷鸣[3] 房桂干[1,2]

第一作者：赵梦珂

机构：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业和草原局林产化学工程重点实验室,林木生物质低碳高效利用国家工程研究中心,江苏南京210042;[2]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037;[3]广西民族大学林产化学与工程国家民委重点实验室,广西林产化学与工程重点实验室,广西南宁530006

年份：2025

卷号：45

期号：5

起止页码：63-71

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：;北大核心:【北大核心2023】；

基金：国家重点研发计划资助项目(2023YFD2201903);广西林产化学与工程重点实验室开放课题资助项目(GXFK2205)。

语种：中文

中文关键词：羟乙基纤维素;导电水凝胶;机械稳健性;传感灵敏性

外文关键词：hydroxyethyl cellulose;conducting hydrogel;mechanical robustness;sensing sensitivity

分类号：TQ35

摘要：以水溶性良好的羟乙基纤维素(HEC)为模板,与聚(3,4-乙烯二氧噻吩):聚苯乙烯磺酸盐(PEDOT PSS)聚合物原位聚合,制备HEC/PEDOT PSS复合导电聚合物,并与聚丙烯酰胺(PAM)共同构建水凝胶。在该体系中,HEC大量的羟基能够诱导PEDOT生长,在硫酸与PSS的调节下,HEC/PEDOT PSS的Zeta电位为-34.5 mV,表现出优异的分散性和均一性。最终,HEC/PEDOT PSS/PAM水凝胶在链缠结与多种氢键的共同作用下成型,当HEC质量分数为0.75%时,凝胶拉伸强度为0.34 MPa,断裂伸长率为814%,韧性为1.19 MJ/m^(3),相比于未使用HEC模板的导电水凝胶,分别提升为原来的1.62、1.27、3.41倍,传感灵敏度为7.20,响应时间为41 ms,兼具机械稳健性与传感灵敏性。
A HEC/PEDOT PSS composite conductive polymer was synthesized via in situ polymerization using water-soluble hydroxyethyl cellulose(HEC)as a template,poly(3,4-ethylenedioxythiophene):polystyrene sulfonate(PEDOT PSS)as the conductive complex,which was subsequently incorporated with polyacrylamide(PAM)to construct a hydrogel system.Within this system,the abundant hydroxyl groups present in HEC are capable of promoting the growth of PEDOT,while the regulation by sulfuric acid and PSS resulted in excellent dispersion and uniformity of the polymer.The HEC/PEDOT PSS/PAM hydrogel was ultimately obtained through chain entanglement and multiple hydrogen bonding interactions.Zeta potential of the HEC/PEDOT PSS was-34.5 mV.When the mass fraction of HEC reached 0.75%,the hydrogel demonstrated a tensile strength of 0.34 MPa,elongation at break of 814%,and toughness of 1.19 MJ/m^(3),representing enhancements of 1.62,1.27,and 3.41 times respectively compared to the conductive hydrogels without HEC template.Additionally,the hydrogel exhibited a gauge factor of 7.20 and response interval of 41 ms,demonstrating both mechanical robustness and sensing sensitivity.