林产化学与工业2025，Vol.45Issue(2)：70-76,7.DOI:10.20195/j.issn.0253-2417.2024010
纤维素基导电弹性体的制备及性能研究
Preparation and Properties of Cellulose-based Conductive Elastomers
摘要
Abstract
Firstly,ethyl cellulose-based macromolecular monomer(ECAC)was synthesized by esterification between acrylyl chloride(AC)and ethyl cellulose(EC).Then,a liquid-free cellulose-based conductive elastomer for strain sensing was prepared by photocuring bulk polymerization with 2-hydroxy ethyl acrylate(HE A)as monomer,ECAC as crosslinking agent,1-butyl-3-methylimidazolium chloride as conductive filler and 2-hydroxy-2-methylpropiophenone as photoinitator.The products were characterized by Fourier transform infrared spectroscopy(FT-IR),1H nuclear magnetic resonance(1H NMR),differential scanning calorimetry(DSC),thermogravimetric(TG)analyzer and universal testing machine.FT-IR and 1H NMR analysis showed that ECAC was successfully synthesized.DSC and TG analysis showed that ECAC improved the thermal stability of cellulose based conductive elastomers.The glass transtion temperature of the conductive elastomer with 10％ECAC was 5.19℃ higher than that without ECAC,and 20.2 and 12.7℃ higher than those of the conductive elastomer with 2％ECAC content at 5％and 50％weight loss,respectively.When the ECAC content was 8％,the mechanical properties of the conductive elastomer were the best,and its elongation at break and tensile strength reached 698％and 1.91 MPa,respectively.When the conductive elastomer was used as a sensor,the increase of EC AC content could reduce its gauge factor(GF),thus reducing its sensing performance.The mechanical and sensing properties of conductive elastomers could be regulated by controlling the content of ECAC,which could realize the application of conductive elastomers in different scenarios.关键词
丙烯酸酯/本体聚合/改性纤维素/弹性体/传感器Key words
acrylic ester/bulk polymerization/modified cellulose/elastomer/sensor分类
化学工程引用本文复制引用
齐稷,罗通,王春鹏,储富祥,王基夫..纤维素基导电弹性体的制备及性能研究[J].林产化学与工业,2025,45(2):70-76,7.基金项目
国家自然科学基金资助项目(32371822) （32371822）
