• 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 >Synthesis andEMIshielding studies of polyaniline grafted conducting nanohybrid
【24h】

Synthesis andEMIshielding studies of polyaniline grafted conducting nanohybrid

机译：聚苯胺接枝纳米油状物的合成和血型研究

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

Polyaniline (PANI) grafted conducting nanohybrids are successfully synthesized by emulsion graft polymerization. Maximum grafting of 644% is obtained on sepiolite at optimized concentrations and reaction conditions. The Fourier transform infrared (FT-IR) spectra of sepiolite grafted polyaniline (MS-g-PANI) nanohybrid revealed the presence of stretching vibrations of C=C bonds of polyaniline at 1580 and 1490 cm(-1)along with the characteristic peaks of sepiolite. Increased thermal stability of the nanohybrid is observed with the increase in polyaniline grafting. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to study the structural changes caused by grafting. A progressive increase in electrical conductivity is observed with the increase in grafting yield. Maximum electrical conductivity of 0.427 Scm(-1)is observed in the nanohybrid having 644% grafting. 24.2 dB (>99% attenuation) EMI shielding effectiveness has been exhibited by the developed nanohybrids in X-band frequency range.
机译：通过乳液接枝聚合成功地合成了聚苯胺（PANI）接枝导电纳米杂化材料。在优化的浓度和反应条件下，海泡石的最大接枝率为644%。海泡石接枝聚苯胺（MS-g-PANI）纳米杂化物的傅里叶变换红外光谱（FT-IR）显示，在1580和1490 cm（-1）处，聚苯胺的C=C键存在拉伸振动，以及海泡石的特征峰。随着聚苯胺接枝率的增加，纳米杂化材料的热稳定性增加。扫描电子显微镜（SEM）和透射电子显微镜（TEM）用于研究接枝引起的结构变化。随着接枝率的增加，电导率逐渐增加。在接枝率为644%的纳米杂化材料中观察到最大导电率为0.427 Scm（-1）。在X波段频率范围内，已开发的纳米杂化材料显示出24.2 dB（>99%衰减）的EMI屏蔽效能。

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