聚乙烯基复合透明导电薄膜的制备与性能

Preparation and Properties of Transparent and Conductive Films with Polyethylene as the Substrate

以聚乙烯(PE)薄膜为基材,通过表面处理,采用聚乙撑二氧噻吩(PEDOT)制备导电涂料,利用丝杠涂布制备了在可见和中远红外都有较高透过率的透明导电薄膜。利用可见分光光度计、红外光谱仪(IR)、四探针等分析PE导电薄膜的透光性和导电性。结果表明,表面改性有效提高导电层溶液的铺展性;当紫外光固胶CBU225质量分数为20%,导电层溶液中含有质量分数5%二甲基亚砜时,制备的PE导电薄膜表面电阻为8640Ω,在550nm的透过率为75.8%,红外透过率最高。

Conductive films with high transmittance in both visible and infrared regions were prepared using treated polyethylene（PE）films as the substrate and poly（3,4-ethylenedioxythiophene） （PEDOT） as the conductive substance by screw coating method. Then the transmittance and conductivity of conductive films were investigated by UV-vis spectroscopy, IR and four-point probe method. The results indicate that the surface hydrophilicity of PE films can be improved significantly after coating modifications. Both the modified layer and the conductive layer show little influence on the transmittance of the visible light while decrease the infrared transmittance of PE conductive films. When the mass fraction of ultraviolet light solid glue CBU225 is 20 % and the PEDOT emulsion is doped with 5% dimethyl sulfoxide（DMSO）, the conductive films exhibit a surface resistance of 8640f2 and a transmittance in 550nm of 75.8 % together with the highest transmittance in infrared region.