纤维素纳米晶增强聚丙烯酰胺复合导电水凝胶的制备及性能  

Preparation and properties of cellulose nanocrystal reinforced polyacrylamide composite conductive hydrogels

作　　者：谢俊龙 钟雨薇 张诗童 蔡少君[1] XIE Junlong;ZHONG Yuwei;ZHANG Shitong;CAI Shaojun(School of Optoelectronic Materials&Technology,Jianghan University,Wuhan 430056,China)

机构地区：[1]江汉大学光电材料与技术学院,武汉430056

出　　处：《功能材料》2025年第3期3208-3213,共6页Journal of Functional Materials

基　　金：江汉大学校级科研项目(2021yb009)。

摘　　要：以2-丙烯酰胺-2-甲基丙磺酸锂(AMPSLi)和丙烯酰胺(AM)为共聚单体,制备得到P(AM-co-AMPSLi)导电水凝胶,并以纤维素纳米晶(CNC)为增强相以提高水凝胶的机械性能。对CNC/P(AM-co-AMPSLi)复合水凝胶的结构、机械性能、电导率和微观形貌进行了测定和研究。结果表明,CNC与P(AM-co-AMPSLi)水凝胶之间存在氢键作用,能够显著提高水凝胶的综合力学性能;3%CNC/P(AM-co-5%AMPSLi)复合水凝胶的导电性能(0.65S/m)和综合力学性能最优(最大负荷0.473 N,抗拉强度30.37 kPa),抗拉强度相较于未添加CNC的共聚水凝胶提高了420%。P(AM-co-AMPSLi)composite conductive hydrogels were prepared by copolymerization of 2-acrylamido-2-methyl propane sulfonic acid lithium(AMPSLi)and AM.Cellulose nanocrystals(CNC)were selected as the reinforcement phase to improve the mechanical properties of the hydrogels.The structure,mechanical properties,electrical conductivity and microstructure of the composite hydrogels were measured and studied.The results showed that the hydrogen bond between CNC and P(AM-co-AMPSLi)hydrogels could significantly improve the comprehensive mechanical properties of hydrogels.The electrical conductivity of 3%CNC/P(AM-co-5%AMPSLi)composite hydrogel(0.65S/m)and the comprehensive mechanical properties were the best(the maximum load and tensile strength of 0.473 N and 30.37 kPa,respectively).The tensile strength was 420%higher than that of the copolymer hydrogel without CNC.

关 键 词：聚丙烯酰胺 2-丙烯酰胺-2-甲基丙磺酸 纤维素纳米晶 导电水凝胶 

分 类 号：TB324[一般工业技术—材料科学与工程]