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Preparation and Properties of PEDOT/PSS Conductive Polymer Blended with Graphene/PVDF

机译:用石墨烯/ PVDF混合PEDOT / PS导电聚合物的制备及性能

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Graphene has unique structure and excellent performance, It has good optical, thermal, mechanical properties and electrical conductivity. In this article, based on elaborating the structure, characteristic and preparation methods of the graphene, the modification of graphene in polymer composite was discussed and the development and research direction of the graphene/polymer composite were proposed. The conductivity of poly (3,4-ethylenedioxythiophene) (PEDOT) doped with poly(4-styrenesulfonate) (PSS) blended with different ratios of graphene/PVDF (polyvinylidiene fluoride) solution was measured. After dryness, we found that an addition of graphene/PVDF solution lowered the resistance by three or four orders of magnitude when the concentration are 25 wt% and 50 wt%, among them the Gb50 has the best surface conductivity, the magnitude is about 1.43 S/cm, and then we found that the second onset degradation temperature of PEDOT/PSS membrane blended with graphene/PVDF was 75°C higher than that of without blended with graphene/PVDF. All kind of dispersion has been studied using a four-point probe conductive meter, X-ray diffractometry (XRD), fourier transform infrared (FTIR), thermogravimetric analysis(TGA) and scanning electrical microscopy (SEM) in order to discuss the surface resistance, the crystallinity, the chemical structure, the thermal properties and morphology of the PEDOT/PSS-graphene/PVDF film. Conductive PEDOT/PSS-graphene/PVDF membrane has good electrical properties and thermal stability, which can be used for the electrolyte of lithium battery.
机译:石墨烯具有独特的结构和优异的性能,具有良好的光学,热,机械性能和导电性。在本文中,基于阐述石墨烯的结构,特征和制备方法,讨论了石墨烯在聚合物复合材料中的改性,提出了石墨烯/聚合物复合物的显影和研究方向。测定掺杂有聚(4-苯乙酸磺酸盐)(PSS)的聚(3,4-亚乙基氧基噻吩)(PEDOT)与石墨烯/ PVDF(聚偏二乙烯氟乙烯)溶液的不同比例混合的聚(4-苯乙烯磺酸盐)(PSS)的电导率。干燥后,当浓度为25wt%和50wt%时,添加石墨烯/ PVDF溶液的添加降低了三个或四个数量级,其中GB50具有最佳的表面电导率,大小为1.43 S / cm,然后我们发现用石墨烯/ PVDF混合的PEDOT / PSS膜的第二发行降解温度高于没有与石墨烯/ PVDF混合的75℃。已经使用四点探针导电仪,X射线衍射测量(XRD),傅里叶变换红外(FTIR),热重分析(TGA),扫描电显微镜(SEM)进行了所有种类的分散体,以便讨论表面电阻,结晶度,化学结构,PEDOT / PSS-石墨烯/ PVDF膜的热性质和形态。导电PEDOT / PSS-石墨烯/ PVDF膜具有良好的电性能和热稳定性,可用于锂电池的电解质。

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