超弹性导电纤维材料的制备研究
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- 英文论文题名：Fabrication of Superelastic Conducting Fibers
- 论文作者：王红艳 ; 章若川 ; 刘遵峰 ; 印寿根
- 英文论文作者：Hongyan W ; Ruochuan Z ; Zunfeng L ; Shougen Y ; Key Laboratory of Display Materials and Photoelectric Devices ; Ministry of Education ; Tianjin University of Technology ; Nano Tech Institute ; University of Texas at Dallas
- 年：2016
- 作者机构：天津理工大学显示材料与光电器件教育部重点实验室;纳米技术研究所德克萨斯大学达拉斯分校;
- 论文关键词：超弹性导电纤维 ; 苯乙烯-(乙烯-丁烯)-苯乙烯(SEBS)三嵌共聚物 ; 石蜡油 ; 单股纤维驱动器 ; 单股纤维驱动器
- 会议召开时间：2016-07-03
- 会议录名称：中国化学会第30届学术年会摘要集-论坛二：新型前沿交叉化学论坛
- 语种：中文
- 分类号：TQ342.83
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-论坛二 ; 新型前沿交叉化学论坛
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：2
- 文件大小：297k
- 原文格式：D
- 会议级别：全国
摘要
超弹性材料由于具有独特的整合柔性和曲形表面的能力受到了科技与产业界广泛的关注。材料在通电和加热时产生伸缩、弯曲或膨胀的形变将会对其导电性能产生很大的影响,而材料导电性能的优劣极大地依赖于纤维材料的拉伸长度和拉伸倍数。单独使用或者把超弹性纤维编织到纺织物中,可被应用于大范围拉伸的应变传感,人造肌肉,能量存储和化学感应纤维等检测日常活动中的身体健康情况以及表征结构的性能等。我们设计不同配比的苯乙烯-(乙烯-丁烯)-苯乙烯(SEBS)三嵌共聚物和石蜡油混合制备出高拉伸倍数橡胶纤维,将其与CNTs复合制备出单/双股导电纤维。直径为0.9mm、恒定荷载为15.6k Pa、扭曲为3.47转/cm时单股纤维驱动器的扭转变化达21.8o/cm的最大值,双股驱动器的扭转变化显著增加到44.4o/cm。拟合表明拉伸驱动和扭转驱动的结果与实验值可很好地匹配1。我们进一步制备了直径小至40μm的核-壳结构的超弹性纤维,最大可拉伸应变超过了300%。核-壳结构是由碳纳米管壳包裹在橡胶核上构成的,可被反复拉伸到800%,其电阻变化较低,最高只有12%~2。
We report the fabrication of highly stretchable(up to 1320 %) sheath-core conducting fibers and also made single-ply and two ply twist-inserted dielectric muscle that was mechanically in series with a non-actuating rubber fiber. The torsional stroke reached a maximum value of 21.8 °/cm for the 0.9-mm-diameter muscle and the applied stress was15.6 k Pa. When a torsional muscle by plying together(with 3.47 turns/cm of twist) two 0.9-mm-diameter, non-twisted NTS10@rubber@NTS20@fibers was operated isobarically in the muscle–return-spring configuration used for the single-ply muscles, an unusually large torsional stroke was observed(44.4 °/cm) with a tensile stroke of 3.7 %. Theory shows that the results of tensile actuation and torsional actuation match well with the experiment data. We also describe the fabrication of superelastic conducting sheath-core fibers that are as thin as 40 μm, whose realized performance is usefully insensitive to applied strains that can exceed 300 %. These sheath-core fibers, which comprise a carbon nanotube sheath on a rubber core, can be reversibly stretched by 800 % with a desirably low resistance change of 12 %.
We report the fabrication of highly stretchable(up to 1320 %) sheath-core conducting fibers and also made single-ply and two ply twist-inserted dielectric muscle that was mechanically in series with a non-actuating rubber fiber. The torsional stroke reached a maximum value of 21.8 °/cm for the 0.9-mm-diameter muscle and the applied stress was15.6 k Pa. When a torsional muscle by plying together(with 3.47 turns/cm of twist) two 0.9-mm-diameter, non-twisted NTS10@rubber@NTS20@fibers was operated isobarically in the muscle–return-spring configuration used for the single-ply muscles, an unusually large torsional stroke was observed(44.4 °/cm) with a tensile stroke of 3.7 %. Theory shows that the results of tensile actuation and torsional actuation match well with the experiment data. We also describe the fabrication of superelastic conducting sheath-core fibers that are as thin as 40 μm, whose realized performance is usefully insensitive to applied strains that can exceed 300 %. These sheath-core fibers, which comprise a carbon nanotube sheath on a rubber core, can be reversibly stretched by 800 % with a desirably low resistance change of 12 %.
引文
(1)Liu,Z.F.;Fang,S.;Moura,F.A.;Ding,J.N.et al.Hierarchically Buckled Sheath-Core Fibers for Superelastic Electronics,Sensors,and Muscles,Science,2015,400:349.
(2)Wang,H.;Liu,Z.;Ding,J.;Fang,S.et al.Downsized Sheath-Core Conducting Fibers for Weavable Superelastic Wires,Biosensors,Supercapacitors and Strain Sensors,Advanced Materials,2016.
(2)Wang,H.;Liu,Z.;Ding,J.;Fang,S.et al.Downsized Sheath-Core Conducting Fibers for Weavable Superelastic Wires,Biosensors,Supercapacitors and Strain Sensors,Advanced Materials,2016.