Polymer microporous modification by corona induced grafting technology

A technology of inducing grafting and grafting polymerization, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of reducing membrane separation performance and mechanical strength, destroying the structure of membrane body, and difficult to continuous application. , to achieve the effect of broadening the scope of application, less damage, and reduced protein adsorption
CN1817427AInactive Publication Date: 2006-08-16ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2006-08-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

A corona induced grafting method for modifying the millipore polymer membrane to improve its hydrophilicity, anti-pollution performance and biocompatibility includes such steps as corona treating of hydrophibic millipore polymer membrane for 15-120 S to generate the active centers on its surface for inducing polymerization, and immersing it in the hydrophilic olefinic monomer solution at 30-70 deg.C for 0.5-24 hr to form a hydrophilic layer on its surface.
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Description

technical field

[0001] The invention relates to a method for modifying a polymer separation membrane, and specifically provides a method for modifying a polymer microporous membrane by corona-induced grafting. Background technique

[0002] Membrane separation technology is a new type of high-efficiency separation technology. Compared with traditional separation technologies, it has outstanding advantages such as high separation efficiency, low energy consumption (no phase change), and environmental friendliness. It is almost suitable for petrochemical / chemical, food / Separation, purification and resource recovery of liquid and gas media in various fields such as beverage, pharmaceutical / medical, dye, natural substance extraction and concentration, water purification and wastewater treatment. Due to the close relationship between membrane separation technology and energy saving, environmental protection, resource development and full utilization, the role of membrane technolo...

Claims

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