通过在二氧化钛纳米粒子上原位合成纳米银,提高了天然橡胶介电弹性体的机电性能

IF 3.8 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IET Nanodielectrics Pub Date : 2021-11-17 DOI:10.1049/nde2.12030
Liyuan Yu, Tingting Hu, Dan Yang, Qungui Wei
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引用次数: 5

摘要

介电弹性体(DEs)可以将电能转化为机械能,但其应用目前受到驱动电压升高的限制。为了在低电压下获得满意的驱动应变,本研究通过原位合成获得钛酸盐oxide@tannic酸铁ion@silver(标记为TiO2@TA-Fe3+@Ag)卫星结构纳米颗粒,然后将纳米颗粒掺入天然橡胶(NR)中制备DE复合材料(标记为TiO2@TA-Fe3+@Ag/NR)。TA-Fe3+和Ag纳米颗粒表面涂层的存在提高了TiO2@TA-Fe3+@Ag/NR复合材料的机电性能。其中,30 wt% TiO2@TA-Fe3+@Ag/NR复合材料在22.78 kV/mm的较低电场下,激发应变较高,达到9.09%。总之,绿色、简便、经济的表面改性方法有望改善颗粒填充聚合物复合材料的机电性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Enhanced electromechanical performance of natural rubber dielectric elastomers achieved by in situ synthesis of silver nanoparticles on TiO2 nanoparticles

Dielectric elastomers (DEs) could transduce electrical energy to mechanical energy, but their applications are currently limited by the elevated driving voltages. To obtain satisfactory actuated strains at low voltages, titanate oxide@tannic acid-ferric ion@silver (labelled as TiO2@TA-Fe3+@Ag) satellite-structure nanoparticles were obtained in this study by in situ synthesis followed by incorporating the nanoparticles into natural rubber (NR) to prepare DE composites (denoted as TiO2@TA-Fe3+@Ag/NR). The presence of surface coating of TA-Fe3+ and Ag nanoparticles improved the electromechanical performance of TiO2@TA-Fe3+@Ag/NR composites. Among the samples, 30 wt% TiO2@TA-Fe3+@Ag/NR composite displayed a relatively high actuated strain of 9.09% at a relatively low electric field of 22.78 kV/mm. In sum, the green, facile, and cost-effective surface modification method looks promising for improving the electromechanical properties of particulate-filled polymer composites.

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来源期刊
IET Nanodielectrics
IET Nanodielectrics Materials Science-Materials Chemistry
CiteScore
5.60
自引率
3.70%
发文量
7
审稿时长
21 weeks
期刊最新文献
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