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首页> 外文期刊>Indian Journal of Fibre & Textile Research >Preparation of poly(o-toluidine)/polyacrylonitrile composite fibres using CrO_3
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Preparation of poly(o-toluidine)/polyacrylonitrile composite fibres using CrO_3

机译：用CrO_3制备聚（邻甲苯胺）/聚丙烯腈复合纤维

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摘要

Poly(o-toluidine) (POT) and polyacrylonitrile (PAN) fibres have been used to prepare conducting composite fibres by in situ chemical polymerization using GO_3 as oxidant. The POT content and surface resistivity of POT/PAN composite fibres have been systematically evaluated as a function of the polymerization temperature and time, types of oxidant and dopant, and concentrations of monomer, oxidant and dopant. At the polymerization carried out at 30 °C for 4 h by 0.125 M o-toluidine, 0.08 M CrO_3 and 1.2 M HC1, the composite fibres having the highest POT content (about 2.3 %) and the lowest surface resistivity (about 0.12 Mohm/cm~2 ) are obtained. Surface resistivity measurements together with FTIR, TGA and SEM techniques have been used for the characterization of composite fibres prepared. Furthermore, the mechanical properties of composite such as tensile strength and elongation-at-break are also measured. SEM images show that the surface of fibre is coated by POT with a flaky shape and there are accumulation of large and small POT particles at some regions.
机译：聚（邻甲苯胺）（POT）和聚丙烯腈（PAN）纤维已被用于通过使用GO_3作为氧化剂的原位化学聚合来制备导电复合纤维。根据聚合温度和时间，氧化剂和掺杂剂的类型以及单体，氧化剂和掺杂剂的浓度，系统地评估了POT / PAN复合纤维的POT含量和表面电阻率。在0.125 M的邻甲苯胺，0.08 M的CrO_3和1.2 M的HCl在30°C下进行聚合4小时后，复合纤维的POT含量最高（约2.3％），表面电阻率最低（约0.12 Mohm /获得cm〜2）。表面电阻率测量以及FTIR，TGA和SEM技术已用于表征制备的复合纤维。此外，还测量了复合材料的机械性能，例如拉伸强度和断裂伸长率。 SEM图像表明，纤维表面被POT包覆成片状，并且在某些区域聚集了大小不一的POT颗粒。

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