生物质化学工程2025，Vol.59Issue(4)：58-66,9.DOI:10.3969/j.issn.1673-5854.2025.04.006
木棉纤维素纳米纤维/铜纳米线复合膜的制备及其电磁屏蔽性能
Preparation of Kapok Cellulose Nanofiber/Copper Nanowire Composite Film and Its Electromagnetic Shielding Effectiveness
摘要
Abstract
Conductive copper nanowires(CuNWs)with a relatively uniform diameter were firstly prepared by hydrothermal synthesis method,while nanofibers(kCNF)were prepared from kapok fibers by physical ultrasonication method.Then,CuNWs was used as conductive filler,and kCNF was used as the substrate.The electromagnetic shielding composite film with certain conductivity was prepared by vacuum filtration and cold pressing process,namely,the kapok cellulose nanofibers/copper nanowire composite film.The effects of different amounts of CuNWs on the thermal stability,mechanical properties,electrical conductivity and electromagnetic shielding effectiveness of the composite films were investigated.The results showed that the CuNWs could be uniformly and tightly distributed on the composite membrane to form an excellent conductive network.The conductivity and electromagnetic shielding performance of the composite film were significantly improved with the increase of the CuNWs's dosage.The composite film exhibited a certain thermal stability at high temperature when the CuNWs's dosage was 15％(based on mass),the composite film exhibited a certain thermal stability at high temperature,and the resistance decreased from about 470 MΩ of kCNF film to 249.4 kΩ,showing an electromagnetic shielding effect of 19.33 dB.关键词
铜纳米线/木棉/纳米纤维素纤维/电磁屏蔽/复合膜Key words
copper nanowires/kapok/cellulose nanofibers/electromagnetic shielding/composite film分类
化学化工引用本文复制引用
孙依诺,滕睿,刘守新,李伟..木棉纤维素纳米纤维/铜纳米线复合膜的制备及其电磁屏蔽性能[J].生物质化学工程,2025,59(4):58-66,9.基金项目
国家自然科学基金资助项目(32471804) （32471804）
