生物质化学工程2025，Vol.59Issue(4)：47-57,11.DOI:10.3969/j.issn.1673-5854.2025.04.005
自愈合纳米纤维素/MXene复合水凝胶的制备及其多功能应用研究
Preparation of Self-healing Nanocellulose/MXene Composite Hydrogels and Its Multifunctional Applications
摘要
Abstract
To construct a functional composite gel with excellent mechanical properties,electrical conductivity,photo-thermal response behavior and self-healing ability,nanocellulose/two-dimensional transition metal carbonitride(MXene)reinforced carrageenan/polyacrylamide bi-network hydrogels(Al-TMKP)was constructed by metal Al3+ion cross-linking strategy using carrageenan,tannic acid-modified nanocellulose(TA@TOCNs),and titanium carbide(Ti3C2Tx)as raw materials,N,N'-methylenebisacrylamide(NMBA)as cross-linking agent and ammonium persulfate(APS)as initiator.The surface functional groups,microscopic morphology,mechanical properties,photothermal conversion properties,self-healing and sensing properties of the hydrogels were tested.The results showed that the introduction of Ti3C2Txfunctional filler demonstrated a more homogeneous small-sized pore size and smooth inner wall for Al-TMKP hydrogels after cross-linking with Al3+.When the Ti3C2Tx dosage was 5％,the comprehensive performance of Al-TMKP-5％hydrogel was the best:the tensile strength was about 47.72 kPa,the compressive strength at 50％strain was about 721.52 kPa,the electrical conductivity was 5.2 S/m,the photothermal response temperature was about 62.7 ℃,and the self-healing rate was as high as 98.07％.As a sensor,the Al-TMKP hydrogel had a high sensitivity index and could monitor complex muscle movements and spatial motions,showing great potential in the field of multifunctional flexible sensors.关键词
纳米纤维素/水凝胶/光热响应/力学性能/自愈合性/传感器Key words
nanocellulose/hydrogel/photothermal response/mechanical properties/self-healing ability/sensor分类
化学化工引用本文复制引用
王少伟,梅泽楷,金晓月,叶明强,周益辉,杨伟胜,韩景泉..自愈合纳米纤维素/MXene复合水凝胶的制备及其多功能应用研究[J].生物质化学工程,2025,59(4):47-57,11.基金项目
国家自然科学基金资助项目(32371803) （32371803）
湖南省科技创新计划(2024RC4016) （2024RC4016）
江苏省农业科技自主创新资金项目(CX(23)3059) （CX(23）
