纤维素纳米纤维基抗冻双网络凝胶的制备及其应变传感性能研究

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·纳米纤维素基凝胶·

关键词：纤维素纳米纤维；双网络凝胶；抗冻性能；人体运动监测中图分类号：TS7 文献标识码：A DOI：10.11980/j.issn.0254-508X.2025.10.013

Preparation of Celllose Nanofiber-based Antifreeze Double Network Gel and Its Strain Sensing Properties

HE Xin' HU Jianquan' LIU Yuxin1.2.*

（1.FacultyofChemicalEngineering，Kunming UniversityofScienceandTechnology，Kunming，YunnanProvince，650500; 2.TheDegrdblesticsEgseachCeneoarocialduationeprntumngnro0 （ * E-mail：yuxinliukm@kmust. edu.cn）

Abstract：Inthissuydeputecticsolvent（DES）aspreparedyetheneglyolEG）andchlode（ZnCl），ditwasudo ventreplacing water.Acrylamide（AM）wasusedasamonomer，andpolyacrylamide（PAM）waspolymerizedunderUViradiation.Then， thecelulosenaniberndlilohl（V）wereitroducedtacemchanicalpropetis，sultinginD-V/A/ CNFantifreedoublenetworkgel.TheresultsshowedthatthepreparedDES-PVA/PAM/CNFantifreeedoublenetworkgelsexhibitedthe best antifreeze performance with freezing point as low as -73.03 °C when the molar ratio of ZnC to EG was1：5. Further investigation of the -2 efects ofCNFcontentonthegel propertiesrevealedthatthebestoverallperformances wereachieved whentheCNFcontentwas 0.4% （basedonthemassofEG）Atnormaltemperature，thefracturestrengthofthegelwasuptoO.94MPa，andthestrainatbreak was （20 844.5% ，atlow temperature，the fracture strength was still maintained at 0.92MPa ，exhibiting excellent adaptability at low temperatures. Inaddition，afterassembling thegelasastrainsensor，the monitoringofhumanskin-atached motion wassucessfullyralized.

Key words：cellulose nanofibers；double network gel;antifreeze performance; human movement monitoring

近年来，随着水凝胶应用领域的不断扩大，其需求量也在不断增加，水凝胶研究正朝着智能化、多功能和可持续方向发展，这些趋势将进一步推动水凝胶在多个领域和设备的创新应用和发展，如能量收集装置2、空气过滤器3、制动器、电磁屏蔽装置]、柔性传感器等。（剩余14396字）