共查询到19条相似文献,搜索用时 109 毫秒
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采用两种方法实现顺丁橡胶和掺杂态聚苯胺的复合,即溶液法和机械共混法,并对这两种方法制备的复合样品的性能进行了分析研究。结果表明,溶液法比机械共混法制备的样品性能好。聚苯胺/顺丁橡胶导电复合膜的电导率,随着掺杂态聚苯胺含量的增加而增大。 相似文献
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常压下,采用化学氧化现场吸附聚合法制备了聚苯胺/阴离子型聚氨酯导电复合膜。该复合膜不仅表现出良好的导电性,其表面电阻为103Ω/cm,而且导电性较为耐久和稳定;同时复合膜也兼有良好的力学性能及良好的透气性。 相似文献
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聚苯胺/聚丙烯导电纤维的制备 总被引:2,自引:0,他引:2
采用现场吸附聚合法制备了聚苯胺/聚丙烯导电纤维,研究了盐酸浓度、氧化剂浓度、苯胺单体含量、反应温度、反应时间等反应条件对纤维上聚苯胺含量的影响,并研究了改变纤维截面形状和粗细、共混纺丝、表面等离子体处理等改性处理对纤维上聚苯胺含量的影响。 相似文献
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磺酸掺杂聚苯胺导电复合材料的研究进展 总被引:3,自引:0,他引:3
就化学原位聚合、溶液共混、熔融共混制备磺酸掺杂聚苯胺/聚合物导电复合材料的研究进展作一综述,简述了各种方法的优缺点和目前的应用情况。 相似文献
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就化学原位聚合、溶液共混、机械熔融共混制备磺酸掺杂导电聚苯胺/聚合物复合材料的研究进展作一综述,简述了各种方法的优缺点和目前的应用情况。 相似文献
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原位化学氧化聚合制备PANI/PMMA导电复合膜 总被引:1,自引:0,他引:1
采用原位化学氧化聚合的方法制备了聚苯胺(PANI)/聚甲基丙烯酸甲酯(PMMA)复合膜,电导率达到1.2×10-2S/cm.考察了苯胺单体含量、聚合温度以及聚合时间对复合膜电导率的影响;通过红外光谱分析了PANI/PMMA导电复合膜的分子结构;应用热重分析仪测试了复合膜的热性能.结果表明,原位化学氧化聚合制备PANI/PMMA复合膜的工艺是可行的,苯胺的最佳用量为35%,聚合反应时间6 h左右,聚合反应温度不宜高于40℃;复合膜的热稳定性较盐酸掺杂聚苯胺有所提高. 相似文献
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显微红外技术研究聚苯胺涂层防腐蚀性能 总被引:1,自引:0,他引:1
聚苯胺是一种导电高分子,聚苯胺涂料因其性价比较高而被看作是新一代环境友好型的高效防腐涂料.本研究以过硫酸铵为引发剂,十二烷基苯磺酸钠为乳化剂,采用乳液聚合法制备丙烯酸树脂乳液.分别采用乳液互穿网络聚合法和乳液共混法制备聚苯胺--丙烯酸树脂防腐蚀涂料,并利用红外显微镜技术分析聚苯胺在聚苯胺--丙烯酸树脂防腐蚀涂料中的分散性.涂层在马口铁上腐蚀电位和极化曲线的测试结果表明,采用乳液互穿网络聚合法制备的聚苯胺--丙烯酸树脂防腐蚀涂层在ω(NaCl)为3.5%的NaCl溶液中的开路电位比乳液共混法升高了0.596V,自腐蚀电流降低了1个数量级. 相似文献
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A MirmohseniG.G Wallace 《Polymer》2003,44(12):3523-3528
In this paper, the preparation and characterization of polyaniline-polyvinyl alcohol composites is described. The polyaniline composite was synthesized by chemical polymerization of aniline in media containing polyvinyl alcohol (10%, w/w). Oxidation of aniline results in a stable water based polyaniline dispersion, which can be cast to form a mechanically robust film.The electrical conductivity of the films increased with increasing amount of polyaniline to a high value of 2.5 S cm−1. Cyclic voltammograms revealed that the composite materials are electroactive. 相似文献
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Polyaniline: Synthesis,properties, and application 总被引:1,自引:0,他引:1
The methods of synthesis and the properties of polyaniline—a representative of the family of conducting polymers—are reviewed briefly. It is shown that variation in the conditions of aniline polymerization makes it possible to synthesize polymer materials with the desired structures and properties and, thus, to provide for the use of polyaniline in various fields of science and engineering. Special attention is given to the matrix synthesis of polyaniline as the main approach to obtain electroactive and conducting composite materials. The use of polyaniline and the related composite materials in polymer electronics is analyzed briefly. 相似文献
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聚氨酯/聚苯胺导电复合材料的制备与应用 总被引:1,自引:0,他引:1
概述了聚氨酯与新型导电聚合物聚苯胺的复合材料的制备原理、工艺及性能等,包括聚氨酯内部渗透法、聚苯胺包裹法、共聚/接枝及化学氧化/电化学聚合等,对应用不同制备方法制作的聚氨酯/聚苯胺导电复合材料的性能做了比较,并对聚氨酯/聚苯胺导电复合材料的研究前沿和应用前景做了介绍。 相似文献
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采用原位化学氧化聚合法制备苯胺/PE导电复合材料,使苯胺在基体高分子PE的水溶液中进行聚合,研究反应体系中聚苯胺的含量、反应时间、温度对复合材料电导率的影响,确定了较佳的聚合反应条件,并且通过红外对光谱复合材料的结构、光电性能和稳定性进行了表征和分析。 相似文献
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The effect of electro-degradation processing on microstructure of polyaniline/single-wall carbon nanotube composite films 总被引:1,自引:0,他引:1
Mesostructured polyaniline/single-wall carbon nanotube (PAni/SWCNT) composite film has been prepared through electrochemical polymerization/degradation processing. The microstructures of the films are observed before and after electro-degradation. Initial twisty SWCNT bundles are broken down and linked by the polymerization of PAni. Both crystalline and disordered PAni regions coexist in the PAni/SWCNT composite nanowires. The disordered regions are gradually dissolved while the crystalline regions are basically preserved after electro-degradation. The formation mechanism of the composite with special construction has been proposed. In addition, cyclic voltammetry measurements demonstrate that the electroactive performance of PAni/SWCNT composite is enhanced after electro-degradation. It is found that the specific capacitance of electro-degraded composite reaches up to 848.7 F/g, more than twice over the untreated film, which is ascribed to its profitable charge accessible interface and increased available crystalline PAni regions. 相似文献
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采用KOH溶液活化后的酚醛树脂基活性炭作为复合材料前躯体,通过原位聚合法在活性炭表面沉积聚苯胺,制备得到聚苯胺/酚醛树脂基活性炭复合材料。采用透射电子显微镜(TEM)、X射线衍射(XRD)、循环伏安法以及恒电流充放电法对聚苯胺/酚醛树脂基活性炭复合材料的微观结构和电化学性能进行了研究表征。TEM照片表明聚苯胺薄膜整齐的沉积在活性炭表面上,形成了相互关联的多孔网状物,结合XRD图表明聚苯胺/酚醛树脂基活性炭复合材料处于纳米级无序形态,循环伏安法测试和恒电流充放电测试表明聚苯胺/活性炭复合材料电极有着良好的使用稳定性和电极可逆性,复合材料电极的比电容可达到187.5 F/g。 相似文献