...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Smart Materials & Structures >Fabrication and magnetorheology of bidisperse magnetic microspheres coated with gelatin and multi-walled carbon nanotubes
【24h】

Fabrication and magnetorheology of bidisperse magnetic microspheres coated with gelatin and multi-walled carbon nanotubes

机译：涂有明胶和多壁碳纳米管的双孔磁性微球的制造和磁流变

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

To improve the magnetorheological (MR) properties and dispersion stability of the carbonyl iron (CI) particles, bidisperse magnetorheological (BMR) fluids consisting of magnetic micron-sized CI and nanoparticles dual-coated with gelatin and multi-walled carbon nanotubes (MWCNTs) were synthesized for the first time. Gelatin was used as a grafting agent to improve the stability of bidisperse magnetic particles and restrict the oxidation of nanoparticles (Fe3O4). And a dense network composed of MWCNTs on the surface of gelatin-coated bidisperse particles was fabricated based on the self-assembly of MWCNTs to produce considerably rough surfaces. The influence of functional dual-coated layer on rheological performance such as shear stress and yield stress behavior was investigated by a rotational rheometer upon various magnetic field applications. Additionally, the dispersion stability was measured through sedimentation tests. The results showed that CI-Fe3O4-Gelatin-MWCNTs (CI-Fe3O4-G-NT) magnetic microspheres possessed enhanced MR properties compared with those from CI-Fe3O4-Gelatin (CI-Fe3O4-G) microspheres, while the dispersion stability of CI-Fe3O4-G-NT microspheres was still maintained.
机译：为了改善羰基铁（CI）颗粒的磁流变（MR）性能和分散稳定性，由磁性微米尺寸Ci和纳米颗粒组成的磁性微集液（BMR）流体与明胶和多壁碳纳米管（MWCNT）组成的磁性微米尺寸和纳米颗粒组成第一次合成。明胶用作接枝剂以改善偏磁颗粒的稳定性，并限制纳米颗粒的氧化（Fe3O4）。并且基于MWCNT的自组装制造了由明胶涂覆的BID分散颗粒表面上的MWCNT构成的致密网络，以产生大大粗糙表面。在各种磁场应用上，通过旋转流变仪研究了功能双涂层对流变性能的影响，例如剪切应力和屈服应力行为。另外，通过沉降试验测量分散稳定性。结果表明，与C 1 -FE3O4-明胶（C 1 -FE3O4-G）微球相比，CI-Fe3O4-明胶-MWCNT（C 1 -FE3O4-G-NT）磁性微球具有增强的MR性能，而CI的分散稳定性-Fe3O4-G-NT微球仍然保持。

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