School of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.
Department of Polymer Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
Carbohydr Polym. 2016 Feb 10;137:693-700. doi: 10.1016/j.carbpol.2015.11.035. Epub 2015 Nov 17.
Cellulose carbamate (CC) was produced from kenaf core pulp (KCP) via a microwave reactor-assisted method. The formation of CC was confirmed by Fourier transform infrared spectroscopy and nitrogen content analysis. The degree of substitution, zeta potential and size distribution of CC were also determined. The CC was characterized with scanning electron microscopy, X-ray diffraction and thermogravimetry analysis. The CC particles were then dispersed in silicone oil to prepare CC-based anhydrous electric stimuli-responsive electrorheological (ER) fluids. Rhelogical measurement was carried out using rotational rheometer with a high voltage generator in both steady and oscillatory shear modes to examine the effect of electric field strength on the ER characteristics. The results showed that the increase in electric field strength has enhanced the ER properties of CC-based ER fluid due to the chain formation induced by electric polarization among the particles.
纤维素碳酸酯（CC）是通过微波反应器辅助法从麻纤维髓心浆粕（KCP）中制得的。傅里叶变换红外光谱和氮含量分析证实了 CC 的形成。还测定了 CC 的取代度、动电电势和粒径分布。通过扫描电子显微镜、X 射线衍射和热重分析对 CC 进行了表征。然后将 CC 颗粒分散在硅油中，制备基于 CC 的无水电刺激响应电流变（ER）流体。使用带有高压发生器的旋转流变仪在稳态和振荡剪切模式下进行流变测量，以检查电场强度对 ER 特性的影响。结果表明，由于颗粒间的电偶极子诱导形成链，电场强度的增加增强了基于 CC 的 ER 流体的 ER 性能。
