Porous film made of polyunsymfluoroethylene, and its prepn. method |
Title： |
| Porous film made of polyunsymfluoroethylene, and its prepn. method |
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Application Number： |
200510126253 |
Application Date： |
2005/12/02 |
Announcement Date： |
2006/06/28 |
Pub. Date： |
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Publication Number： |
1792420 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B01D 71/34 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Wang Xiaolin, Yang Jian, Zhao Wenming |
Key Words： |
Porous film, polyunsymfluoroethylene, prepn. method |
Abstract： |
A process polyvinylidene fluoride membrane is prepared from polyvinylidene fluoride and diphenyl methanone as solvent through lowering temp of system to trigger phase separation. Said porous membrane has no obvious surface structure, spongy cross-section structure and 0.01-1 micron for pore diameter. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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