Polytetrafluoroethylene microporous membrane for water sterilization and method for preparing same

Disclosed are a polytetrafluoroethylene film with micro holes for antibacterial in water and its preparing method. Mix the hydrophilic material and varicosity polytetrafluoroethylene resin powder, acquire the product through pressure, degreasing of several layers, extension and burning. The inventio...

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Bibliographic Details
Main Authors HUAPENG ZHANG, XINMIN HAO, YUHAI GUO
Format Patent
LanguageEnglish
Published 29.06.2005
Edition7
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:Disclosed are a polytetrafluoroethylene film with micro holes for antibacterial in water and its preparing method. Mix the hydrophilic material and varicosity polytetrafluoroethylene resin powder, acquire the product through pressure, degreasing of several layers, extension and burning. The invention has simple technique and low cost, with the smallest bubble point pressure of 1.0-1.8kg/cm2, water filtration speed of 1-3m3/m2h (pressure of filtration is 0.006-0.009Mpa), can be directly applied in filtration of antibacterial in water, with remarkable economic and social benefits.
Bibliography:Application Number: CN2004184446