本文主要研究内容
作者周玉洁（2019）在《基于裂缝结构的柔性可穿戴碳纳米管/热塑性聚氨酯导电复合膜》一文中研究指出：随着智能终端越来越普及,柔性可穿戴电子器件表现出巨大的市场前景。柔性传感器作为可穿戴电子设备的重要组成部件,极大地影响智能设备的结构-功能设计与未来发展。柔性复合材料普遍应用于柔性传感器中,基于裂缝结构的柔性力敏复合材料由于具有超高的灵敏度受到了研究者的广泛关注。然而,常见的基于裂缝结构的应变敏感复合材料能够检测的应变响应范围有限,压力敏感复合材料的功能也具有局限性,极大地限制了其在智能领域的推广应用。本文以静电纺丝热塑性聚氨酯(TPU)为基底,并在TPU基底上构筑碳纳米管(CNT)导电层得到CNT/TPU导电复合膜,通过导电层的裂缝结构设计构筑导电网络以制备高性能的应变敏感复合材料和压力敏感复合材料。我们研究了该复合材料在各种拉伸、弯曲模式下的应变敏感响应性能、机理,在各种压缩模式下的压力敏感响应行为、机理,探索了基于裂缝结构的柔性力敏复合材料在物理振动以及人体运动行为检测等方面的应用,本文具体研究内容如下:1、裂缝结构CNT/TPU应变敏感复合材料的制备及性能研究(1)首先将CNT导电油墨喷涂到静电纺丝TPU纤维膜上得到CNT/TPU导电纤维膜。通过对CNT/TPU导电纤维膜进行预拉伸在CNT导电层上形成裂缝结构制备裂缝结构CNT/TPU柔性应变敏感复合材料,平衡应变刺激下响应范围和灵敏度间的相互制约关系。研究了 CNT导电池墨层喷涂的厚度以及预拉伸工艺对材料微观结构和响应性能的影响。(2)详细表征了应变敏感复合材料的应变响应性能,发现该复合材料既表现出超高的灵敏度,兼具超宽的应变响应范围(灵敏度系数(Guage factor,GF)在0～100%之间为428.5,在100%～220%之间为9268.8,在220%～300%之间为83982.8),而且有快速响应时间(70ms)、良好的稳定性,出色的可重复性(大于10000次拉伸-回复循环)以及优异的弯曲敏感性能。(3)该应变敏感复合材料出色的传感性能与CNT从裂缝缝隙边缘延伸出的微结构及TPU电纺纤维膜优良的拉伸性能有关(CNT从裂缝边缘延仲到缝隙中的微结构利于电子传输有助应变敏感复合材料灵敏度的提高,TPU电纺纤维膜的优异拉伸性能有利于该复合材料的应变响应范围的增大)。通过对应变敏感复合材料的裂缝结构及试样在拉伸过程中裂缝形貌结构的表征分析,初步构建了电子传输的电阻模型并对不同情况下的电阻响应变化进行分析,探索了裂缝结构CNT/TPU应变敏感复合材料在拉伸和弯曲条件下的响应机理。(4)研究了该应变敏感复合材料的应用性,基于该复合材料组装的应变传感器能精确地检测到手机扬声器声音振动信号和钢尺振荡等物理振动信号,对手部抓握时的手背、手指、手腕、手肘关节弯曲运动,膝盖弯曲,手腕脉搏跳动以及喉部发声均能实时监测,展示其在智能设备、电子皮肤和可穿戴医疗监视器等方面的应用潜力。2、不同结构CNT/TPU压力敏感复合材料的制备及性能研究(1)本章将构造裂缝结构应用到制备高灵敏度压力敏感的CNT/TPU复合材料中。对CNT/TPU导电纤维膜进行不同方式的组装,结合聚氨酯(Polyurethane,PU)薄膜制备了两层结构CNT/TPU复合材料、两层裂缝结构CNT/TPU复合材料和三层结构CNT/TPU复合材料三种柔性压力敏感的复合材料。(2)研究了三种柔性压力敏感复合材料的形貌及结构组成特点,结合裂缝结构的简单导电原理图分析了两层裂缝结构CNT/TPU压力敏感复合材料在各种压缩条件下的电阻响应机制。(3)对比研究了两层裂缝结构CNT/TPU复合材料和三层结构CNT/TPU 复合材料在各种压缩条件下的电阻敏感响应,发现压力施加速率对两种复合材料的电阻响应信号输出没有影响,复合材料对不同的压力可显示不同的电阻响应变化信号,且具有较好的稳定性以及响应耐久性。特别地,两层裂缝结构CNT/TPU复合材料表现出较低的压力检测限,三层结构CNT/TPU 复合材料表现出更好的稳定性。这为其在智能显示终端设备中的应用提供了较好的实验依据。(4)研究了压力敏感复合材料的应用性,基于该复合材料组装了压力传感器,测试了压力传感器试样的接触角(116.011°)证明其具有一定的防水性能,探索了压力传感器在人体运动测试方面的应用,展现了该压力敏感复合材料在可穿戴器件及各种领域智能终端具有的广阔应用前景。
Abstract
sui zhao zhi neng zhong duan yue lai yue pu ji ,rou xing ke chuan dai dian zi qi jian biao xian chu ju da de shi chang qian jing 。rou xing chuan gan qi zuo wei ke chuan dai dian zi she bei de chong yao zu cheng bu jian ,ji da de ying xiang zhi neng she bei de jie gou -gong neng she ji yu wei lai fa zhan 。rou xing fu ge cai liao pu bian ying yong yu rou xing chuan gan qi zhong ,ji yu lie feng jie gou de rou xing li min fu ge cai liao you yu ju you chao gao de ling min du shou dao le yan jiu zhe de an fan guan zhu 。ran er ,chang jian de ji yu lie feng jie gou de ying bian min gan fu ge cai liao neng gou jian ce de ying bian xiang ying fan wei you xian ,ya li min gan fu ge cai liao de gong neng ye ju you ju xian xing ,ji da de xian zhi le ji zai zhi neng ling yu de tui an ying yong 。ben wen yi jing dian fang si re su xing ju an zhi (TPU)wei ji de ,bing zai TPUji de shang gou zhu tan na mi guan (CNT)dao dian ceng de dao CNT/TPUdao dian fu ge mo ,tong guo dao dian ceng de lie feng jie gou she ji gou zhu dao dian wang lao yi zhi bei gao xing neng de ying bian min gan fu ge cai liao he ya li min gan fu ge cai liao 。wo men yan jiu le gai fu ge cai liao zai ge chong la shen 、wan qu mo shi xia de ying bian min gan xiang ying xing neng 、ji li ,zai ge chong ya su mo shi xia de ya li min gan xiang ying hang wei 、ji li ,tan suo le ji yu lie feng jie gou de rou xing li min fu ge cai liao zai wu li zhen dong yi ji ren ti yun dong hang wei jian ce deng fang mian de ying yong ,ben wen ju ti yan jiu nei rong ru xia :1、lie feng jie gou CNT/TPUying bian min gan fu ge cai liao de zhi bei ji xing neng yan jiu (1)shou xian jiang CNTdao dian you mo pen tu dao jing dian fang si TPUqian wei mo shang de dao CNT/TPUdao dian qian wei mo 。tong guo dui CNT/TPUdao dian qian wei mo jin hang yu la shen zai CNTdao dian ceng shang xing cheng lie feng jie gou zhi bei lie feng jie gou CNT/TPUrou xing ying bian min gan fu ge cai liao ,ping heng ying bian ci ji xia xiang ying fan wei he ling min du jian de xiang hu zhi yao guan ji 。yan jiu le CNTdao dian chi mo ceng pen tu de hou du yi ji yu la shen gong yi dui cai liao wei guan jie gou he xiang ying xing neng de ying xiang 。(2)xiang xi biao zheng le ying bian min gan fu ge cai liao de ying bian xiang ying xing neng ,fa xian gai fu ge cai liao ji biao xian chu chao gao de ling min du ,jian ju chao kuan de ying bian xiang ying fan wei (ling min du ji shu (Guage factor,GF)zai 0～100%zhi jian wei 428.5,zai 100%～220%zhi jian wei 9268.8,zai 220%～300%zhi jian wei 83982.8),er ju you kuai su xiang ying shi jian (70ms)、liang hao de wen ding xing ,chu se de ke chong fu xing (da yu 10000ci la shen -hui fu xun huan )yi ji you yi de wan qu min gan xing neng 。(3)gai ying bian min gan fu ge cai liao chu se de chuan gan xing neng yu CNTcong lie feng feng xi bian yuan yan shen chu de wei jie gou ji TPUdian fang qian wei mo you liang de la shen xing neng you guan (CNTcong lie feng bian yuan yan zhong dao feng xi zhong de wei jie gou li yu dian zi chuan shu you zhu ying bian min gan fu ge cai liao ling min du de di gao ,TPUdian fang qian wei mo de you yi la shen xing neng you li yu gai fu ge cai liao de ying bian xiang ying fan wei de zeng da )。tong guo dui ying bian min gan fu ge cai liao de lie feng jie gou ji shi yang zai la shen guo cheng zhong lie feng xing mao jie gou de biao zheng fen xi ,chu bu gou jian le dian zi chuan shu de dian zu mo xing bing dui bu tong qing kuang xia de dian zu xiang ying bian hua jin hang fen xi ,tan suo le lie feng jie gou CNT/TPUying bian min gan fu ge cai liao zai la shen he wan qu tiao jian xia de xiang ying ji li 。(4)yan jiu le gai ying bian min gan fu ge cai liao de ying yong xing ,ji yu gai fu ge cai liao zu zhuang de ying bian chuan gan qi neng jing que de jian ce dao shou ji yang sheng qi sheng yin zhen dong xin hao he gang che zhen dang deng wu li zhen dong xin hao ,dui shou bu zhua wo shi de shou bei 、shou zhi 、shou wan 、shou zhou guan jie wan qu yun dong ,xi gai wan qu ,shou wan mai bo tiao dong yi ji hou bu fa sheng jun neng shi shi jian ce ,zhan shi ji zai zhi neng she bei 、dian zi pi fu he ke chuan dai yi liao jian shi qi deng fang mian de ying yong qian li 。2、bu tong jie gou CNT/TPUya li min gan fu ge cai liao de zhi bei ji xing neng yan jiu (1)ben zhang jiang gou zao lie feng jie gou ying yong dao zhi bei gao ling min du ya li min gan de CNT/TPUfu ge cai liao zhong 。dui CNT/TPUdao dian qian wei mo jin hang bu tong fang shi de zu zhuang ,jie ge ju an zhi (Polyurethane,PU)bao mo zhi bei le liang ceng jie gou CNT/TPUfu ge cai liao 、liang ceng lie feng jie gou CNT/TPUfu ge cai liao he san ceng jie gou CNT/TPUfu ge cai liao san chong rou xing ya li min gan de fu ge cai liao 。(2)yan jiu le san chong rou xing ya li min gan fu ge cai liao de xing mao ji jie gou zu cheng te dian ,jie ge lie feng jie gou de jian chan dao dian yuan li tu fen xi le liang ceng lie feng jie gou CNT/TPUya li min gan fu ge cai liao zai ge chong ya su tiao jian xia de dian zu xiang ying ji zhi 。(3)dui bi yan jiu le liang ceng lie feng jie gou CNT/TPUfu ge cai liao he san ceng jie gou CNT/TPU fu ge cai liao zai ge chong ya su tiao jian xia de dian zu min gan xiang ying ,fa xian ya li shi jia su lv dui liang chong fu ge cai liao de dian zu xiang ying xin hao shu chu mei you ying xiang ,fu ge cai liao dui bu tong de ya li ke xian shi bu tong de dian zu xiang ying bian hua xin hao ,ju ju you jiao hao de wen ding xing yi ji xiang ying nai jiu xing 。te bie de ,liang ceng lie feng jie gou CNT/TPUfu ge cai liao biao xian chu jiao di de ya li jian ce xian ,san ceng jie gou CNT/TPU fu ge cai liao biao xian chu geng hao de wen ding xing 。zhe wei ji zai zhi neng xian shi zhong duan she bei zhong de ying yong di gong le jiao hao de shi yan yi ju 。(4)yan jiu le ya li min gan fu ge cai liao de ying yong xing ,ji yu gai fu ge cai liao zu zhuang le ya li chuan gan qi ,ce shi le ya li chuan gan qi shi yang de jie chu jiao (116.011°)zheng ming ji ju you yi ding de fang shui xing neng ,tan suo le ya li chuan gan qi zai ren ti yun dong ce shi fang mian de ying yong ,zhan xian le gai ya li min gan fu ge cai liao zai ke chuan dai qi jian ji ge chong ling yu zhi neng zhong duan ju you de an kuo ying yong qian jing 。
论文参考文献
论文详细介绍
论文作者分别是来自郑州大学的周玉洁，发表于刊物郑州大学2019-07-03论文，是一篇关于裂缝结构论文,静电纺丝纤维膜论文,碳纳米管导电油墨论文,柔性应变敏感复合材料论文,压力敏感复合材料论文,郑州大学2019-07-03论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自郑州大学2019-07-03论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：裂缝结构论文; 静电纺丝纤维膜论文; 碳纳米管导电油墨论文; 柔性应变敏感复合材料论文; 压力敏感复合材料论文; 郑州大学2019-07-03论文;