| 摘要 |
PURPOSE: A manufacturing method of filter fabric for electric sludge dehydration is provided to improve dehydration efficiency by improving electrical conductivity. CONSTITUTION: The manufacturing method comprises a step of drying silver or silver compound particles having size of 0.01 to 10 μm at a temperature of 40 to 80 deg.C for 1 to 2 hours, preparing a plastic solution by dissolving acryl based plastic into solvent so that a mixed solution of the acryl based plastic and the solvent has a specific gravity of 1.0 to 3.0 at 25 deg.C, and preparing a conductive silver paste by mixing the plastic solution with the silver or silver compound particles so that the mixture of the plastic solution and the silver or silver compound particles has an electrical conductivity of 1.0x10¬-2 to 1.0x10¬-5 §Ùcm; and a step of spraying or coating the silver paste on a filter fabric formed of at least one fiber selected from the group consisting of polypropylene, polyester, polyethylene, nylon and polyamide based fiber, or dipping the filter fabric into the silver paste.
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