PURPOSE: A modified graphite fluoride, obtained by partially decomposing a graphite fluoride by irradiation with electromagnetic waves, having improved lubricity characteristics, and suitable for a solid lubricants.
CONSTITUTION: A modified graphite fluoride obtained by decomposing and modifying within 0.01W50wt%, preferably 0.1W10wt%, range graphite fluoride (GF), consisting of (CF)n or/and (C2F)n, and having generally 0.01W100μ particle diameter under irradiation with electromagnetic waves. Electromagnetic waves of any wavelengths generally called the electromagnetic waves within about 10-17W105m wavelength region, may be used, but preferably the wavelength is within 10-4W10-7cm range. An organic solvent, e.g. ethanol, or water containing a surfactant is used as a dispersing agent for the GF. An aqueous solution of an alkali, e.g. NaOH, is used for accelerating the decomposition rate of the GF. When the resultant modified GF is used as a lubricant, the moldability of a molding material is improved due to the good dispersibility in oil, etc. and good compatibility with a resin, and a lower specific abrasion ratio than the unmodified GF is exhibited.
MOROI SHIROU
SAKAGAMI AKIRA
NAKANO HISAHARU
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