发明名称 |
HYDROPHILIC PVDF MEMBRANE AND MANUFACTURING METHOD THEREOF |
摘要 |
PURPOSE: A hydrophilic PVDF membrane is provided to ensure excellent water permeability, pressure resistance, and staining resistance. CONSTITUTION: A hydrophilic PVDF membrane comprises PVDF copolymers containing a hydrophilic group. The PVDF copolymer contains 5-50 weight% of hydrophilic group. The hydrophilic group is a sulfonic acid group or carboxyl group. The hydrophilic PVDF membrane is prepared from a polymer solution. The polymer solution contains 5-40 weight% of mixture containing hydrophilic PVDF copolymer and pore controlling agent and 60-95 weight% of solvent. The pore controlling agent is polyvinyl pyrrolidone or polyethylene glycol.
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申请公布号 |
KR20110064520(A) |
申请公布日期 |
2011.06.15 |
申请号 |
KR20090121176 |
申请日期 |
2009.12.08 |
申请人 |
LEE, YOUNG HO;HEO, JUN HYUK |
发明人 |
LEE, YOUNG HO;HEO, JUN HYUK |
分类号 |
B01D71/34;B01D71/00 |
主分类号 |
B01D71/34 |
代理机构 |
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