羧甲基纤维素钠/聚丙烯酸导电水凝胶的制备及其性能

打开文本图片集

中图分类号：063 文献标志码：A

文章编号： 1008-9357（2026）01-0034-11

Preparation of Sodium Carboxymethyl Cellulose/Poly（acrylic acid） Conductive Hydrogel and Its Properties

TAO Hui'， ZHANG Yuxuan， CHEN Yuqian， CAO Zheng， WANG Dong， WU Dun， CHENG Junfeng， TAO Guoliang，LIU Chunlin （1.NationalExperimentalDemonstrationCenterforMaterials ScienceandEngineering，SchoolofMaterialsScience and Engineering，Changzhou University，Changzhou 213164，Jiangsu，China;2.Huaide Collge，Changzhou University， Jingjiang 214500， Jiangsu， China）

Abstract：A conductive hydrogel was fabricated through a one-pot free-radical polymerization of sodium carboxymethyl cellulose （CMC-Na）， acrylic acid （AA）， and Fe3+ .The interpenetrating and synergistic double cross-linked microstructure endows the hydrogel with excellent mechanical properties （tensile strength of 112.8kPa and strain of 682.4% ）and selfhealing performance （performance recovers to 95% of the original within 72h ）. The hydrogel also exhibits excellent ionic conductivity （ 1.75S/m; ）.The integrated mechanical properties and ionic conductivity enable the as-prepared hydrogel to demonstrate high sensitivity （a gauge factor （GF） of 2.86 at 60% strain）， stability， and durability in sensor applications， allowing it to monitorboth large-scaleand subtle human motions.These properties make thehydrogel suitable for mulifunctional wearable sensors.Overall，this research provides a simple and eficient synthesis oute for preparing self

healingconductivehydrogelsbased on CMC-Na.

Key words：sodium carboxymethyl celllose；poly（acrylic acid）；conductive hydrogel；wearable sensor;self-healing

电子皮肤[1]与可穿戴传感器[2]等领域的快速发展，对兼具自愈合性、可拉伸性与高导电性的智能材料的需求日益迫切。（剩余15994字）