Permanent hydrophilic polytetrafluoroethylene microporous membrane and method for preparing same

Disclosed are an internal hydrosoluble 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, extension and burning. The inv...

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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 NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GENERAL PROCESSES OF COMPOUNDING
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
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
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Summary:Disclosed are an internal hydrosoluble 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, extension and burning. The invention has solved the problem of internal hydrosoluble, it 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: CN2004184447