| 摘要 |
PURPOSE: A composition containing silica sol comprising polythiophene conductive polymer, alkoxysilane, C1-4 alcohol, and amide organic solvent is coated on glass or synthetic film to give an excellent scratchless and electromagnetic wave shielding performance. CONSTITUTION: The composition comprises 20-40 weight% of polythiophene conductive polymer solution, 4-12 weight% of alkoxysilane, 38-74 weight% of C1-4 alcohol such as methanol, ethanol, propanol, isopropanol, or butanol, and 2-10 weight% of amide organic solvent. The polythiophene conductive polymer solution is a mixture of polyethylenedioxythiophene and polystyrenesulfonate with a solid concentration of 1.0-1.5 weight%. The amide solvent is selected from formamide, N-methylformamide, N,N-dimethylformamide, acetamide, N-methylacetamide, N,N-dimethylacetamide, N-methylpropionamide, or N-methylpyrrolidone. The composition gives a high conductivity and transparency with a conductivity of below 1-20 (1 / kilo ohm), a transparency of 90-98%, and a film hardness of 4-6H. |
