Method for hydrophilic modification of ultrahigh molecular weight polyethylene microporous membrane surface |
Title： |
| Method for hydrophilic modification of ultrahigh molecular weight polyethylene microporous membrane surface |
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Application Number： |
200410062258 |
Application Date： |
2004/07/02 |
Announcement Date： |
2005/07/20 |
Pub. Date： |
2007/03/14 |
Publication Number： |
1640533 |
Announcement Number： |
1304096 |
Grant Date： |
2007-3-14 |
Granted Pub. Date： |
2007-3-14 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B01D 71/28, B01D 71/78 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Chen Cuixian, Guo Hongxia, Wang Ping |
Key Words： |
hydrophilic modification, ultrahigh molecular weight, polyethylene, microporous membrane, surface |
Abstract： |
The hydrophilic modification method of surface of ultrahigh molecular weight polyethylene microporous filtering membrane belongs to the field of ozone grafted ultrahigh molecular weight polyethylene microporous filtering membrane preparation technology. It is characterized by that it utilizes ozone to initiate graft reaction on the surface of microporous filtering membrane, it selects vinyl-acetic ester (VAc) as graft monomer, after graft reaction makes saponification hydrolysis to form polyvinyl alcohol (PVA) hydrophilic group. The obtained microporous filtering membrane has good hydrophilic property and moisture absorbability. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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