发明名称 |
Pvc hollow filtration membrane and the preparation method thereof |
摘要 |
The present invention provides a polyvinyl chloride hollow filtration membrane, which mainly comprises the following components: 30-95 wt. % of polyvinyl chloride and 5-70 wt. % of vinyl chloride-vinyl acetate-maleic anhydride terpolymer, wherein the polymerization degree of polyvinyl chloride is from 700 to 2500; the content of vinyl acetate is 10-19 % and the content of maleic anhydride is 18-40 % on a basis of total weight of the terpolymer; and the absolute viscosity of the terpolymer is 1.2-1.9 mPa.s. A method for preparing such a polyvinyl chloride hollow filtration membrane is also provided in the present invention.
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申请公布号 |
US7435348(B2) |
申请公布日期 |
2008.10.14 |
申请号 |
US20040567202 |
申请日期 |
2004.08.02 |
申请人 |
SHANGHAI LITREE PURIFYING EQUIPMENT CO., LTD. |
发明人 |
CHEN LIANGGANG |
分类号 |
B01D71/30;B01D63/00;B01D67/00;B01D69/08;B01D71/38 |
主分类号 |
B01D71/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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