碳纳米管/液晶弹性体复合材料的力学性能

侯燚; 胡文婷; 王猛; 杨洪

doi:10.37188/CJLCD.2021-0295

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碳纳米管/液晶弹性体复合材料的力学性能

前沿应用 | 更新时间：2022-02-28

- 碳纳米管/液晶弹性体复合材料的力学性能
- Mechanical property of carbon nanotube/liquid crystal elastomer composite materials
- 液晶与显示 2022年37卷第2期页码：241-249
- 作者机构：
  
  东南大学化学化工学院, 江苏南京 211189
- 作者简介：
  
  [ "侯燚(1996-), 男, 湖北孝感人, 硕士研究生, 2018年于长江大学获得学士学位, 主要从事液晶高分子材料的研究, E-mail: 1304534843@qq.com" ]
  [ "王猛(1991-), 男, 江苏盐城人, 博士, 副研究员, 2017年于东南大学获得博士学位, 主要从事液晶弹性体材料研究。E-mail: wangm@seu.edu.cn" ]
  [ "杨洪(1980-), 男, 江苏盐城人, 博士, 教授, 2007年于美国科罗拉多大学博德分校获得博士学位, 主要从事功能高分子材料研究, E-mail: yangh@seu.edu.cn" ]
- 基金信息：
  
  国家自然科学基金(21971037);国家自然科学基金(51903048);国家自然科学基金(52173109)
- DOI：10.37188/CJLCD.2021-0295
  中图分类号： O753.2;TB381
- 收稿日期：2021-11-22，
  
  修回日期：2021-12-20，
  
  纸质出版日期：2022-02
- 稿件说明：
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侯燚, 胡文婷, 王猛, 等. 碳纳米管/液晶弹性体复合材料的力学性能[J]. 液晶与显示, 2022,37(2):241-249.

Yi HOU, Wen-ting HU, Meng WANG, et al. Mechanical property of carbon nanotube/liquid crystal elastomer composite materials[J]. Chinese journal of liquid crystals and displays, 2022, 37(2): 241-249.
侯燚, 胡文婷, 王猛, 等. 碳纳米管/液晶弹性体复合材料的力学性能[J]. 液晶与显示, 2022,37(2):241-249. DOI： 10.37188/CJLCD.2021-0295.

Yi HOU, Wen-ting HU, Meng WANG, et al. Mechanical property of carbon nanotube/liquid crystal elastomer composite materials[J]. Chinese journal of liquid crystals and displays, 2022, 37(2): 241-249. DOI： 10.37188/CJLCD.2021-0295.

摘要

近年来，碳纳米管/液晶弹性体复合材料凭借其稳定高效的光热性能，成为目前刺激-响应液晶弹性体领域的一个重要研究方向，但目前研究者大多重点关注其光响应行为及使用场景，并未系统研究碳纳米管对液晶弹性体材料力学性能的影响。本文通过物理掺杂的方法制备了不同质量分数的碳纳米管/液晶弹性体复合材料，并利用傅里叶红外光谱、差示扫描量热仪、广角X射线衍射仪、动态热机械分析仪等对制备的复合材料进行热学、液晶性质和力学性能的表征及分析。实验结果表明，碳纳米管的掺杂量对复合材料的力学性能有明显影响，其中掺杂质量分数8%的单壁碳纳米管的液晶弹性体复合材料的力学性能最为优异。在30 ℃时，断裂强度为5.62 MPa，断裂伸长率为182%；在85 ℃（清亮点温度之上）时，其断裂强度为1.62 MPa，断裂伸长率为89%。相对于纯液晶弹性体薄膜材料而言，质量分数8%碳纳米管的液晶弹性体复合材料的断裂强度接近纯液晶弹性体薄膜的3倍，且可以实现最大收缩率为45%的可逆伸缩形变，在人造肌肉、软体机器人等智能材料领域表现出有良好的应用前景。

Abstract

In recent years

carbon nanotube/liquid crystal elastomer (CNT-LCE) composite materials have received lots of scientific attention in the field of stimuli-responsive LCEs

due to the stable and efficient photothermal conversion properties. However

most researchers focused their attention on the stimuli-responsive behavior and application scenarios

but ignored the investigation of the effect of CNTs influencing on the mechanical properties of the LCE materials. Herein

a series of CNTs incorporated LCE composite films are prepared

and further characterized and analyzed by Fourier infrared spectroscopy

differential scanning calorimeter

wide-angle X-ray diffractometer and dynamic thermo-mechanical analyzer to explore the thermal

mesomorphic and mechanical properties of the composite films. The experimental results show that the doping amount of CNTs markedly influences the mechanical properties of these prepared CNT-LCE composite materials. Among them

the 8% (Mass fraction) CNTs incorporated LCE composite film exhibits the best mechanical properties. At 30℃

the breaking strength of the composite film is 5.62 MPa

and the breaking elongation is 182%. Beyond the clear point temperature

the breaking strength of the composite film is 1.62 MPa

and the elongation at break is 89%. Particularly

the breaking strength of this 8% CNTs incorporated LCE film is almost three times that of the pure LCE film. Besides

the CNT-LCE composite film can achieve a reversible shrinking deformation with a maximum contraction rate of 45%

which endows this material with a good application prospect in the field of intelligent materials

such as artificial muscle and soft robots

etc.

关键词

Keywords

references

T J WHITE , D J BROER . Programmable and adaptive mechanics with liquid crystal polymer networks and elastomers . Nature Materials , 2015 . 14 ( 11 ): 1087 - 1098 . DOI: 10.1038/nmat4433 http://doi.org/10.1038/nmat4433 .

陆海峰 , 王猛 , 黄帅 , 等 . 环氧液晶弹性体材料的制备与力学性能研究 . 高分子学报 , 2021 . 52 ( 3 ): 304 - 311 . https://www.cnki.com.cn/Article/CJFDTOTAL-GFXB202103008.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GFXB202103008.htm , .

H F LU , M WANG , S HUANG , 等 . Synthesis and mechanical property investigation of epoxy liquid crystal elastomer material . Acta Polymerica Sinica , 2021 . 52 ( 3 ): 304 - 311 . https://www.cnki.com.cn/Article/CJFDTOTAL-GFXB202103008.htm https://www.cnki.com.cn/Article/CJFDTOTAL-GFXB202103008.htm , .

L QIN , X J LIU , Y L YU . Soft actuators of liquid crystal polymers fueled by light from ultraviolet to near infrared . Advanced Optical Materials , 2021 . 9 ( 7 ): 2001743 DOI: 10.1002/adom.202001743 http://doi.org/10.1002/adom.202001743 .

徐婉娴 , 尹若元 , 林里 , 等 . 液晶弹性体刺激形变研究 . 化学进展 , 2008 . 20 ( 1 ): 140 - 147 . https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ200801017.htm https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ200801017.htm , .

W X XU , R Y YIN , L LIN , 等 . Stimuli-responsive deformation of liquid-crystalline elastomers . Progress in Chemistry , 2008 . 20 ( 1 ): 140 - 147 . https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ200801017.htm https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ200801017.htm , .

K OLIVER , A SEDDON , R S TRASK . Morphing in nature and beyond: a review of natural and synthetic shape-changing materials and mechanisms . Journal of Materials Science , 2016 . 51 ( 24 ): 10663 - 10689 . DOI: 10.1007/s10853-016-0295-8 http://doi.org/10.1007/s10853-016-0295-8 .

廖军秋. 新型氰基二苯乙烯光致形变液晶弹性体的制备与性能研究[D]. 湘潭: 湘潭大学, 2019.

LIAO J Q. Synthesis and properties of novel α-cyanostilbene based photodeformable liquid crystalline elastomers [D]. Xiangtan: Xiangtan University, 2019. (in Chinese).

J C ZHU , T HAN , Y GUO , 等 . Design and synthesis of luminescent liquid crystalline polymers with "Jacketing" effect and luminescent patterning applications . Macromolecules , 2019 . 52 ( 10 ): 3668 - 3679 . DOI: 10.1021/acs.macromol.9b00221 http://doi.org/10.1021/acs.macromol.9b00221 .

L LIU , M H LIU , L L DENG , 等 . Near-infrared chromophore functionalized soft actuator with ultrafast photoresponsive speed and superior mechanical property . Journal of the American Chemical Society , 2017 . 139 ( 33 ): 11333 - 11336 . DOI: 10.1021/jacs.7b06410 http://doi.org/10.1021/jacs.7b06410 .

O S BUSHUYEV , T A SINGLETON , C J BARRETT . Fast, reversible, and general photomechanical motion in single crystals of various Azo compounds using visible light . Advanced Materials , 2013 . 25 ( 12 ): 1796 - 1800 . DOI: 10.1002/adma.201204831 http://doi.org/10.1002/adma.201204831 .

F ILIEVSKI , A D MAZZEO , R F SHEPHERD , 等 . Soft robotics for chemists . Angewandte Chemie International Edition , 2011 . 50 ( 8 ): 1890 - 1895 . DOI: 10.1002/anie.201006464 http://doi.org/10.1002/anie.201006464 .

A KAISER , M WINKLER , S KRAUSE , 等 . Magnetoactive liquid crystal elastomer nanocomposites . Journal of Materials Chemistry , 2009 . 19 ( 4 ): 538 - 543 . DOI: 10.1039/B813120C http://doi.org/10.1039/B813120C .

杨梦园 , 杨潇 , 封伟 , 等 . 近红外光响应液晶纳米智能材料 . 液晶与显示 , 2020 . 35 ( 7 ): 631 - 644 . DOI: 10.37188/YJYXS20203507.0631 http://doi.org/10.37188/YJYXS20203507.0631 .

M Y YANG , X YANG , W FENG , 等 . Near-infrared light-responsive intelligent liquid crystal nanocomposites . Chinese Journal of Liquid Crystals and Displays , 2020 . 35 ( 7 ): 631 - 644 . DOI: 10.37188/YJYXS20203507.0631 http://doi.org/10.37188/YJYXS20203507.0631 .

L DE HAAN , J M N VERJANS , D J BROER , 等 . Humidity-responsive liquid crystalline polymer actuators with an asymmetry in the molecular trigger that bend, fold, and curl . Journal of the American Chemical Society , 2014 . 136 ( 30 ): 10585 - 10588 . DOI: 10.1021/ja505475x http://doi.org/10.1021/ja505475x .

B T MICHAL , B M MCKENZIE , S E FELDER , 等 . Metallo-, thermo-, and photoresponsive shape memory and actuating liquid crystalline elastomers . Macromolecules , 2015 . 48 ( 10 ): 3239 - 3246 . DOI: 10.1021/acs.macromol.5b00646 http://doi.org/10.1021/acs.macromol.5b00646 .

M CHAMBERS , H FINKELMANN , M REMŠKAR , 等 . Liquid crystal elastomer-nanoparticle systems for actuation . Journal of Materials Chemistry , 2009 . 19 ( 11 ): 1524 - 1531 . DOI: 10.1039/B812423J http://doi.org/10.1039/B812423J DOI: 10.1039/B812423J http://doi.org/10.1039/B812423J .

J NACIRI , A SRINIVASAN , H JEON , 等 . Nematic elastomer fiber actuator . Macromolecules , 2003 . 36 ( 22 ): 8499 - 8505 . DOI: 10.1021/ma034921g http://doi.org/10.1021/ma034921g .

翟飞 , 封伟 . 4D打印液晶弹性体软体机器人及其热致运动行为 . 应用化学 , 2021 . 38 ( 10 ): 1389 - 1396 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm , .

F ZHAI , W FENG . 4D printed liquid crystal elastomer soft robot and its thermal derived motion behavior . Chinese Journal of Applied Chemistry , 2021 . 38 ( 10 ): 1389 - 1396 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110016.htm , .

张帅 , 杨洋 , 吉岩 , 等 . 磁响应液晶弹性体材料研究进展 . 应用化学 , 2021 . 38 ( 10 ): 1299 - 1309 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm , .

S ZHANG , Y YANG , Y JI , 等 . Research process on magneto-responsive liquid crystalline elastomers . Chinese Journal of Applied Chemistry , 2021 . 38 ( 10 ): 1299 - 1309 . https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm https://www.cnki.com.cn/Article/CJFDTOTAL-YYHX202110007.htm , .

Y JI , J E MARSHALL , E M TERENTJEV . Nanoparticle-liquid crystalline elastomer composites . Polymers , 2012 . 4 ( 1 ): 316 - 340 . DOI: 10.3390/polym4010316 http://doi.org/10.3390/polym4010316 .

Y HU , J Q LIU , L F CHANG , 等 . Electrically and sunlight-driven actuator with versatile biomimetic motions based on rolled carbon nanotube bilayer composite . Advanced Functional Materials , 2017 . 27 ( 44 ): 1704388 DOI: 10.1002/adfm.201704388 http://doi.org/10.1002/adfm.201704388 .

S IIJIMA , T ICHIHASHI . Single-shell carbon nanotubes of 1-nm diameter . Nature , 1993 . 363 ( 6430 ): 603 - 605 . DOI: 10.1038/363603a0 http://doi.org/10.1038/363603a0 .

王猛 , 马丹阳 , 王成杰 . 近红外光响应液晶弹性体 . 化学进展 , 2020 . 32 ( 10 ): 1452 - 1461 . https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ202010002.htm https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ202010002.htm , .

M WANG , D Y MA , C J WANG . Near-infrared light responsive liquid crystal elastomers . Progress in Chemistry , 2020 . 32 ( 10 ): 1452 - 1461 . https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ202010002.htm https://www.cnki.com.cn/Article/CJFDTOTAL-HXJZ202010002.htm , .

C J CAMARGO , H CAMPANELLA , J E MARSHALL , 等 . Localised actuation in composites containing carbon nanotubes and liquid crystalline elastomers . Macromolecular Rapid Communications , 2011 . 32 ( 24 ): 1953 - 1959 . DOI: 10.1002/marc.201100578 http://doi.org/10.1002/marc.201100578 .

L Q YANG , K SETYOWATI , A LI , 等 . Reversible infrared actuation of carbon nanotube-liquid crystalline elastomer nanocomposites . Advanced Materials , 2008 . 20 ( 12 ): 2271 - 2275 . DOI: 10.1002/adma.200702953 http://doi.org/10.1002/adma.200702953 .

Y JI , Y Y HUANG , RUNGSAWANGR , 等 . Dispersion and alignment of carbon nanotubes in liquid crystalline polymers and elastomers . Advanced Materials , 2010 . 22 ( 31 ): 3436 - 3440 . DOI: 10.1002/adma.200904103 http://doi.org/10.1002/adma.200904103 .

J E MARSHALL , Y JI , N TORRAS , 等 . Carbon-nanotube sensitized nematic elastomer composites for IR-visible photo-actuation . Soft Matter , 2012 . 8 ( 5 ): 1570 - 1574 . DOI: 10.1039/C1SM06656K http://doi.org/10.1039/C1SM06656K .

M WANG , S M SAYED , L X GUO , 等 . Multi-stimuli responsive carbon nanotube incorporated polysiloxane azobenzene liquid crystalline elastomer composites . Macromolecules , 2016 . 49 ( 2 ): 663 - 671 . DOI: 10.1021/acs.macromol.5b02388 http://doi.org/10.1021/acs.macromol.5b02388 .

Z Z NIE , B ZUO , M WANG , 等 . Light-driven continuous rotating Möbius strip actuators . Nature Communications , 2021 . 12 ( 1 ): 2334 DOI: 10.1038/s41467-021-22644-9 http://doi.org/10.1038/s41467-021-22644-9 .

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