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Title:
SURFACE TREATMENT OF POLYMER MOLDING
Document Type and Number:
Japanese Patent JPS57187329
Kind Code:
A
Abstract:

PURPOSE: To obtain a polymer molding having a surface excellent in water repellency, oil repellency and ice contact resistance, by subjecting the surface of a polymer molding to a fluorination treatment and subjecting the surface again to a postfluorination treatment thereby to fluorinate the chemically active groups produced subsidiarily with fluorine gas.

CONSTITUTION: The surface of a polymer molding is subjected to a prefluorination treatment. The chemically active groups (e.g., oxygen-containing functional groups) produced subsidiarily on the superficial layer are subjected to either (1) a postfluorination treatment with fluorine gas at a temperature of about 90W 200°C which is higher than the temperature of the prefluorination treatment, or (2) after hydrolysis, a postfluorination treatment with fluorine gas at a temperature of about 50W200°C which is higher than the prefluorination temperature. With respect to the purity of the fluorine gas, an oxygen content of below 1% is sufficient and, accordingly, commercially available fluorine gas can be used. The thickness of the fluorinated layer (protective layer) formed by the prefluorination treatment can be controlled by suitably selecting the reaction condition for the fluorine gas used.


Inventors:
Shinohara, Haruka
Tatsu, Harumi
Application Number:
JP1981000071867
Publication Date:
November 18, 1982
Filing Date:
May 12, 1981
Export Citation:
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Assignee:
JAPAN ATOM ENERGY RES INST
NIPPON MEKTRON LTD
International Classes:
C08J7/12; (IPC1-7): C08J7/12



 
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