[1] Lin Baoping, Cong Yuqi, Chen Fanxiu, Wu Jianfeng, et al. Preparation and electrostrictionof BaTiO3/polyurethane nanocomposite elastomers [J]. Journal of Southeast University (English Edition), 2006, 22 (2): 260-264. [doi:10.3969/j.issn.1003-7985.2006.02.024]

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Preparation and electrostrictionof BaTiO₃/polyurethane nanocomposite elastomers()

BaTiO₃/聚氨酯纳米复合物弹性体的制备与电致伸缩性能

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

22

Issue:

2006 2

Page:

260-264

Research Field:

Chemistry and Chemical Engineering

Publishing date:

2006-06-30

Info

Title:

Preparation and electrostrictionof BaTiO₃/polyurethane nanocomposite elastomers

BaTiO₃/聚氨酯纳米复合物弹性体的制备与电致伸缩性能

Author(s):

Lin Baoping¹;  Cong Yuqi¹;  Chen Fanxiu²;  Wu Jianfeng³;  Li Jianqing³;  He Xiaoyuan²

¹Department of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China
²College of Civil Engineering, Southeast University, Nanjing 210096, China
³Department of Instrument Science and Technology, Southeast University, Nanjing 210096, China

林保平¹;  丛羽奇¹;  陈凡秀²;  吴建锋³;  李建清³;  何小元²

¹ 东南大学化学化工系, 南京 210096; ² 东南大学土木工程学院, 南京210096; ³ 东南大学仪器科学与工程系, 南京 210096

Keywords:

nanocomposite elastomer;  polyurethane;  barium titanate;  dielectric constant;  electrostriction

纳米复合物弹性体;  聚氨酯;  钛酸钡;  介电常数;  电致伸缩

PACS:

O63

DOI:

10.3969/j.issn.1003-7985.2006.02.024

Abstract:

BaTiO₃/polyurethane(BaTiO₃/PU)nanocomposite elastomers were prepared from barium titanate nanoparticles, polyester polyol, 2, 4-toluene diisocyanate, 1, 4-butanediol and 1, 1, 1-trimethanol propane by the one-step method.The density, hardness and dielectric constant of BaTiO₃/PU nanocomposite elastomers increased with the increase of the content of BaTiO₃ nanoparticles in nanocomposites.The electrostrictive properties of BaTiO₃/PU nanocomposite elastomers were investigated by the digital speckle correlation method(DSCM).It was found that through the on-and-off of the electric field, the electrostrictive strains of BaTiO₃/PU nanocomposite elastomers revealed corresponding shrinkage and recovery.The electrostrictive coefficient of BaTiO₃/PU nanocomposite elastomers was greater than that of the corresponding polyurethane elastomers, and the electrostrictive coefficient of composites decreased with the increase of the content of barium titanate nanoparticles.

以聚酯二元醇、甲苯二异氰酸酯、1, 4-丁二醇、1, 1, 1-三羟甲基丙烷和纳米钛酸钡粉体为原料, 采用一步法制备了一系列BaTiO₃/聚氨酯复合物弹性体.BaTiO₃/聚氨酯复合物弹性体的密度、硬度和介电常数随钛酸钡含量的增加而增加.采用数字散斑相关测量方法研究了复合物弹性体在电场诱导下的应变与复合物中钛酸钡含量的关系.结果表明:BaTiO₃/聚氨酯复合物弹性体在外加高压电场的作用下, 随着高压电源的开合, 其应变也随之呈现出相应的收缩与回复.复合物的电致伸缩系数高于相应的聚氨酯弹性体, 但复合物的电致伸缩系数随复合物中钛酸钡含量的增加而逐渐减小.

References:

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Memo

Memo:

Biography: Lin Baoping(1958—), male, professor, lbp@seu.edu.cn.

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