SURFACE TREATMENT OF CARBON YARN
    5.
    发明专利

    公开(公告)号:JPH01168963A

    公开(公告)日:1989-07-04

    申请号:JP32649987

    申请日:1987-12-22

    Abstract: PURPOSE:To form an oxygen-containing functional group effective for improving bond strength of resin at low voltage and in a short time without problems of corrosion of device, by using carbon yarn as an anode and carrying out electrolytic treatment in an aqueous solution of an organic strongly alkali substance or an weakly acidic salt thereof. CONSTITUTION:Carbon yarn is used as an anode and electrolytic treatment is efficiently carried out in an aqueous solution of an organic strongly alkali substance or an weakly acidic salt thereof at low voltage (2-35 volt) and in a short time (3-30 seconds) to form an oxygen-containing functional group effective for improving bond strength to various kinds of resins. A tetraalkylammonium hydroxide such as compounds wherein the alkyl group is methyl group, ethyl group, propyl group or butyl group may be cited as the organic strongly alkali substance and a salt of the tetraalkylammonium hydroxide and formic acid, acetic acid, propionic acid, butyric acid, carbonic acid or bicarbonic acid as the weakly acidic salt of the organic strongly alkali substance.

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