高强度和压电传感的纳米纤维掺杂生物弹性体  

High Strength and Piezoelectric Sensing Nanofiber-doped Bioelastomers

作　　者：周凌 陶雪凤 赵西坡[1] ZHOU Ling;TAO Xuefeng;ZHAO Xipo(School of Material Science and Chemistry Engineering,Hubei University of Technology,Wuhan 430070,China;Wanhua Chemical Group Co.,Ltd,Yantai 264001,China)

机构地区：[1]湖北工业大学材料与化工学院,湖北武汉430068 [2]万华化学股份有限公司,山东烟台264001

出　　处：《纤维素科学与技术》2023年第3期12-18,I0001,共8页Journal of Cellulose Science and Technology

基　　金：国家自然基金(项目号52103041);湖北省绿色轻工材料重点实验室开放基金(项目号4305/00042)。

摘　　要：聚癸二酸甘油酯(PGS)作为一种可完全生物降解的聚酯弹性体,被广泛应用于组织工程支架、生物传感等领域。然而,纯PGS力学强度较低且不导电的缺点也限制其进一步应用。此工作采用简单的溶剂共混―原位固化的思路,成功在PGS基体中分别构建了纳米纤维素(CNFs)增强网路及银纳米线(AgNWs)导电网络,制备出力学性能优异的PGS/CNFs及具有导电性的PGS/AgNWs全生物降解复合弹性体,并重点表征了PGS/CNFs弹性体的力学性能及PGS/AgNWs弹性体在压力传感器应用中的灵敏度、循环稳定性能、银纳米线回收率等性能。研究结果表明掺杂纳米纤维是实现高性能化和功能化生物弹性体制备的有效途径。Polyglycerylsebacate(PGS),as a completely biodegradable polyester elastomer,has been widely used in tissue engineering scaffolds,biosensing and other fields.However,the low mechanical strength and non-conductivity of pure PGS also limit its further application.In this work,cellulose nanofibers(CNFs)reinforced network and silver nanowires(AgNWs)conductive network were successfully constructed in PGS matrix by using a simple solvent mixing and in-situ curing strategy,and fully biodegradable composite elastomers PGS/CNFs with excellent mechanical properties and PGS/AgNWswith electrical conductivity were prepared.The mechanical properties of PGS/CNFs elastomer and the sensitivity,cycle stability and silver nanowire recovery in pressure sensor applications of PGS/AgNWs elastomer were characterized.The results show that doping with nanofibers are an effective way to prepare high performance and functional bioelastomers.

关 键 词：聚癸二酸甘油酯 纳米纤维素 银纳米线 增强 压力传感器 

分 类 号：TQ352.7[化学工程]