• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Enhanced dielectric and electrorheological properties of needle-like TiO2/polyrhodanine core/shell hybrid nanostructure
【24h】

Enhanced dielectric and electrorheological properties of needle-like TiO2/polyrhodanine core/shell hybrid nanostructure

机译：针状TiO2 /聚若丹宁核/壳杂化纳米结构的介电和电流变特性增强

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, antisedimentation, dielectric, electrorheological (ER) and creep-recovery properties of needle-like TiO2/polyrhodanine (PRh) nanocomposite were investigated. Antisedimentation ratio of needle-like TiO2/PRh was determined to be 45% after 30 days in silicone oil (SO). Polarizability and relaxation time of needle-like TiO2/PRh/SO system were determined to be 0.18 and 2.9 X 10(-5) s, respectively by the dielectric spectroscopy which was further used to evaluate the ER performance of the dispersion, and the data obtained were in good agreement with the overall ER results. ER properties of needle-like TiO2/PRh/SO system were determined by taking the effects of shear rate, shear stress, electric field strength, and temperature into account using a torque electrorheometer. Non-Newtonian shear thinning behaviors were observed for the samples. Vibration damping capabilities of the dispersions were investigated by measuring their elastic and viscous moduli as functions of frequency, time, and electric field strengths. Enhanced and reversible viscoelastic deformations were recorded for needle-like TiO2/SO system from creep-recovery tests with 88% recovery under E = 53.5 kV mm(-1) condition; thus, the system was classified as a smart one and suitable for potential vibration damping applications. (c) 2015 Wiley Periodicals, Inc.
机译：在这项研究中，研究了针状TiO2 /聚铑丹宁（PRh）纳米复合材料的抗沉降，介电，电流变（ER）和蠕变恢复特性。在硅油（SO）中放置30天后，针状TiO2 / PRh的抗沉淀率被确定为45％。针状TiO2 / PRh / SO体系的极化率和弛豫时间分别由介电谱确定，分别为0.18和2.9 X 10（-5）s，进一步用于评估分散体的ER性能和数据。获得的结果与整体ER结果非常吻合。针状TiO2 / PRh / SO系统的ER性能是通过使用扭矩电流变仪考虑剪切速率，剪切应力，电场强度和温度的影响来确定的。样品观察到非牛顿剪切稀化行为。通过测量分散体的弹性模量和粘滞模量随频率，时间和电场强度的变化，研究了分散体的减振能力。在蠕变恢复试验中，针状TiO2 / SO系统在E = 53.5 kV mm（-1）条件下的恢复率为88％，记录了增强的和可逆的粘弹性变形。因此，该系统被归类为智能系统，适合潜在的减震应用。 （c）2015年威利期刊有限公司

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号