| 摘要 |
<p>PURPOSE: A high tensile strength hollow fiber membrane reinforced with fibrous support is provided which increases tensile strength by forming the support of fibrous material and increases permeable water amount by controlling thickness of hardened polymer membrane, and a method for manufacture the same is provided. CONSTITUTION: The high tensile strength hollow fiber membrane(14) is characterized in that the outer surface of the fibrous support(11) is coated with the polymer solution by passing a fibrous support as hollow fiber membrane through coating vat(12) containing polymer solution(5), wherein the fibrous support is formed of wick fiber of hollow fiber, wherein the polymer solution for coating is polyvinylidene fluoride, polyethersulfone, polyacrylonitrite, polysulfone, or polyvinylchloride, wherein the wick fiber is polyester, polystyrene, polypropylene, nylon, natural cotton, or glass fiber, wherein the wick fibrous support has tensile strength of 12,00 to 18,000 kgf/cm¬2, wherein pore size of the hollow fiber membrane is 0.1 to 1.0μm, and wherein permeable water amount of the polymer solution coated fibrous support membrane has 20 to 30 liters/m¬2·hr in wastewater and 900 to 1,300 liters/m¬2·hr in clean water. The method for manufacture the high tensile strength hollow fiber membrane(14) comprises the steps of drying the dipped and washed fibrous support at a temperature of 40 to 60 deg.C after dipping and washing a fibrous support used as wick in water tank of an ordinary temperature; coating the polymer solution on the outer surface of hollow fibrous support by passing the fibrous support through coating vat(12) containing polymer solution; winding the coated hollow fiber membrane on coiling type roller; and drying the hollow fiber membrane dipped into the water bath after dipping the manufactured hollow fiber membrane into a water bath having ordinary temperature.</p> |
