CP柔性薄膜复合电极材料的研究

发布时间：2018-01-06 21:30

  本文关键词：CP柔性薄膜复合电极材料的研究　出处：《石家庄铁道大学》2015年硕士论文　论文类型：学位论文

  更多相关文章： PEDOT:PSS薄膜 MWCNTs Ag 导电性能 透光率

【摘要】：导电聚合物的发现开辟了此类材料新的研究与应用领域,聚3,4-乙撑二氧噻吩/聚苯乙烯磺酸盐(PEDOT:PSS)因其导电性能好、易成膜、环境稳定性好、透光性好、无污染等优点成为导电聚合物领域的研究热点。本文主要针对PEDOT:PSS导电聚合物薄膜的制备及掺杂改性展开研究,主要内容涉及以下几个方面:(1)通过正交实验研究静电纺丝工艺参数对PEDOT:PSS薄膜光学性能的影响,得出了最佳纺丝工艺参数:电压17 k V、接收距离13 cm、针头型号8号、纺丝时间14 min。并利用ANSYS模拟软件模拟了电场分布。研究了热处理温度对薄膜导电性能的影响,得出最佳热处理温度为120℃。在最佳纺丝工艺参数和最佳热处理温度下,利用静电纺丝装置成功制备了PEDOT:PSS薄膜。其透光率为89.37%,方阻为49Ω/□的。SEM测试结果表明PEDOT:PSS薄膜表面致密光滑,无孔状结构和团聚颗粒。(2)选用多壁碳纳米管(MWCNTs)对PEDOT:PSS薄膜进行掺杂改性,MWCNTs使用前进行酸化处理,以改善其在水溶液中的分散性。制备了不同MWCNTs掺杂量的PEDOT:PSS/MWCNTs复合薄膜,实验结果表明MWCNTs掺杂提高了PEDO T:PSS的导电性能,降低了其透光性能,且最佳掺杂量为0.5%。实验还发现玻璃基底薄膜的方阻值均小于PET基底的方阻值,且都在MWCNTs掺杂量为0.5%时,取得最小方阻值,分别为309.70Ω/□和341.50Ω/□。UV测试表明,由于MWCNTs在可见光波段的吸收作用及薄膜内部网络构造的阻挡作用,致使MWCNTs掺杂后PEDOT:PSS薄膜的透光率降低至45.28%。(3)选用导电银浆对PEDOT:PSS进行掺杂改性,用二甲苯溶剂,按VAg:V二甲苯=1:1.5比例稀释导电银浆。研究了超声分散处理时间对Ag颗粒尺寸的影响,结果表明,银颗粒尺寸随着超声分散时间的增加先减小后增大。采用静电纺丝装置成功制备了PEDOT:PSS/Ag、PEDOT:PSS/Ag/PEDOT:PSS、Ag/PEDOT:PSS三种复合薄膜。复合Ag后PEDOT:PSS薄膜在紫外可见光波段的吸收明显增加,透光率降低,导电性能提高。
[Abstract]:The discovery of conductive polymers has opened up a new research and application field for this kind of materials. Because of its good conductivity and easy film formation, poly (3n4- ethylenedioxythiophene) / polystyrene sulfonate (PEDOT: PSS) is easy to form films because of its good conductivity. The advantages of good environmental stability, good transmittance and no pollution have become the research focus in the field of conducting polymers. This paper mainly focuses on the preparation and doping modification of PEDOT:PSS conductive polymer films. The main contents are as follows: (1) the effects of electrospinning parameters on the optical properties of PEDOT:PSS films were studied by orthogonal experiment. The optimum spinning process parameters are as follows: voltage 17 kV, receiving distance 13 cm, needle type 8. The electric field distribution was simulated by ANSYS software. The effect of heat treatment temperature on the conductivity of the film was studied. The optimum heat treatment temperature is 120 鈩，

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