共查询到19条相似文献,搜索用时 62 毫秒
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以聚苯胺为导电覆盖层制备导电性涤纶的研究 总被引:4,自引:0,他引:4
将涤纶浸渍于苯胺和对甲苯磺酸溶液中,加入氧化剂使苯胺在涤纶上发生氧化聚合,制得聚苯胺/涤纶导电复合纤维。讨论了苯胺、介质酸的浓度及配比、反应温度和反应时间等对纤维导电性的影响。结果表明,采用此法制备的导电纤维具有良好的导电性能,物理机械性能及环境稳定性,其质量比电阻为1~10Ω·g/cm2。 相似文献
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聚苯胺包覆导电涤纶的研制 总被引:4,自引:0,他引:4
常压下,采用较简单的现场化学原位氧化聚合法将苯胺氧化聚合在涤纶的表皮,从而赋予纤维良好的导电性能,其表面电阻为10~3Ω /cm,并对纤维导电性能的耐洗性作了初步探索。 相似文献
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采用微粒填充法技术制备了TiN/聚苯胺复合膜,对复合膜的导电性能以及对废水的光降解能力进行了探讨。结果表明TiN/聚苯胺复合膜具有良好的导电性能,并可有效的处理含有活性艳红(X-3B)染料的废水。 相似文献
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聚苯胺/涤纶导电织物再掺杂及洗涤性能的研究 总被引:6,自引:0,他引:6
采用现场吸附聚合法制备了聚苯胺 /涤纶导电织物 ,采用不同种类的酸对其进行再掺杂 ,研究了酸的种类对织物导电性能的影响 ,并对导电织物进行了洗涤实验及洗涤牢度实验。结果表明 :无机酸对导电织物的掺杂效果优于大多数有机酸。导电涤纶织物的导电性能受洗涤液酸碱度的影响 ,其中碱性洗涤液使导电性能降低 2个数量级 ,酸性洗涤液使导电性能下降 1个数量级 ,而且聚苯胺在涤纶织物表面具有良好的附着性 相似文献
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以十二烷基苯磺酸(DBSA)为乳化剂,十六醇(CA)为助乳化剂,盐酸和十二烷基苯磺酸(DBSA)为掺杂剂, 过硫酸铵为引发剂,采用乳液聚合法合成了导电聚苯胺(PAn).研究了反应温度、反应时间及苯胺、十二烷基磺酸、十六醇、盐酸和过硫酸铵配比对聚苯胺电导率的影响.研究结果表明,较佳的工艺条件为:反应温度为7 ℃,反应时间为6 h,较佳的原料物质的量的比为苯胺∶十二烷基苯磺酸∶十六醇∶盐酸∶ 过硫酸铵=0.05∶0.028∶0.04∶0.01∶0.05;以十六醇为助乳化剂,采用十二烷基苯磺酸和盐酸为掺杂剂,提高了聚苯胺的导电性.同时对聚苯胺导电机理进行了分析. 相似文献
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Harry L. Frisch Junqing Ma Huihong Song Kurt C. Frisch Paul C. Mengnjoh Abul H. Molla 《应用聚合物科学杂志》2001,80(6):893-897
Electrically conductive polyaniline/polyurethane foams were prepared. The DC conductivity of the composite prepared at pH = 0.505 is about 0.9 S/cm. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 893–897, 2001 相似文献
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Intelligent and multifunctional yarns (textiles) have attracted interest because of their high potential in applications such as flexible displays, batteries, or sensors. The main objective of our research was to obtain the flexible and electrically conducting yarn based on the conductive polymer and polyethylene terephtalate (PET) yarns. Among the conductive polymers, polyaniline (PANI) is considered as a promising material and is well adapted for modifications of textile structure because of its excellent environmental, thermal, and chemical stability. Chemical PANI coating on PET yarns was performed by absorption of yarns through PANI solution. The electrical, mechanical, and electro‐mechanical properties of PET conductive yarns prepared were investigated. The environmental effects on the electrical and mechanical properties of the obtained conductive yarns were also studied. These conductive yarns are expected to be used as fibrous sensors, connection devices in smart clothing, and for electromagnetic shielding applications. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 1252–1256, 2006 相似文献
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In this study, two‐component free‐standing films were obtained by coating a polycarbonate (PC)‐coated Pt electrode first with polypyrrole (PPy) in an organic medium and then polyaniline (PAn) in an aqueous medium using an electrochemical technique. The amount of PPy and PAn contained in the films was controlled by varying the electrolysis time. The PC/PPy/PAn films were characterized by cyclic voltammetry, conductivity, FTIR and UV–visible spectrophotometry, and thermogravimetric analysis. The resistance change of the films was determined in the temperature range of ?15 to 120 °C and their temperature sensor properties were investigated. © 2002 Society of Chemical Industry 相似文献
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Polyaniline/nano‐SiO2 particle composites were prepared through ultrasonic irradiation. Polymerization of aniline was conducted under ultrasonic irradiation in the presence of two types of nano‐SiO2: porous nanosilica and spherical nanosilica. The stability of the colloid dispersion, UV–vis spectra, composition, interaction, conductivity, and other characteristics of the composites were examined. It was found that the aggregation of nano‐SiO2 could be reduced under ultrasonic irradiation and that nanoparticles were redispersed in the aqueous solution. The formed polyaniline deposited on the surface of the nanoparticle, which led to a core–shell structure. Two particle morphologies, threadlike aggregates with a few spherical nanoparticles for porous nanosilica and spherical particles with a few sandwichlike particles for spherical nanosilica, were observed. X‐ray photoelectron spectroscopy showed that for two types of composites the ratio of Si atoms to N atoms (Si:N) on the surface was much higher than that in the bulk. The UV–vis spectra of the diluted colloid dispersion of polyaniline/nano‐SiO2 composite particles were similar to those of the polyaniline system. Fourier transform infrared spectroscopy suggested strong interaction between polyaniline and nano‐SiO2. The conductivity of the polyaniline/porous nanosilica (23.1 wt % polyaniline) and polyaniline/spherical nanosilica (20.6 wt % polyaniline) composites was 2.9 and 0.2 S/cm, respectively. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 87: 1811–1817, 2003 相似文献