Synthesis and electrorheology of multi-walled carbon nanotube/polyaniline nanoparticles
Synthesis and electrorheology of multi-walled carbon nanotube/polyaniline nanoparticles
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DOI：
10.1016/j.synthmet.2005.07.261
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发表时间：
2005-09-20
期刊：
影响因子：
4.4
通讯作者：
Jhon, MS
中科院分区：
文献类型：
--
作者：
Park, SJ;Park, SY;Jhon, MS
以聚乙烯醇（PVA）为聚合物稳定剂，盐酸为掺杂剂，通过氧化分散聚合法合成了多壁碳纳米管（MWNT）和聚苯胺（PANI）纳米粒子。在合成之前，通过回流过程用强酸溶液处理MWNT以除去包括金属催化剂的杂质。由于亲水性PVA稳定吸附在纳米颗粒表面，因此这些MANT/PANI纳米颗粒在水中分散良好。这些多壁碳纳米管/聚苯胺纳米粒子被用作悬浮颗粒的电流变（ER）悬浮液，和流变性能，包括屈服应力和剪切粘度在几个不同的施加电场强度下，通过旋转流变仪配备了高直流电压发生器进行了检查。
Nanoparticles with multi-walled carbon nanotube (MWNT) and polyaniline (PANI) were synthesized via an oxidative dispersion polymerization using poly(vinyl alcohol) (PVA) as a polymeric stabilizer and HCl as a dopant. Prior to the synthesis, the MWNT was treated with strong acidic solutions via a reflux process to eliminate impurities including metallic catalysts. These MANT/PANI nanoparticles were well dispersed in water because the hydrophilic PVA was stably adsorbed onto the nanopartcle surface. These MWNT/PANI nanoparticles were used as suspended particles for an electrorheological (ER) suspension, and the rheological properties for this ER fluid including yield stress and shear viscosity under several different applied electric field strengths were examined via a rotational rheometer equipped with a high DC voltage generator.