Intercalation of fluorinated polymer particles - into microporous oxide surfaces of aluminium@, magnesium@ and aluminium@ magnesium@ alloy objects for homogeneous coating of polymers

摘要

Intercalation of fluorinated polymer into microporous surfaces-formed by means of anodic oxidation, esp. hardened eloxal of aluminium, magnesium or magnesium/aluminium alloy objects, whereby the fluorinated polymer (precursor) particles are smaller than the diameter of the surface pores or capillaries. The polymer (precursor) particles are 1-50 (pref. 1-10) nm in size, with full- or partial polymerisation being carried out in the presence of the metal object to be coated, then followed by sintering of the particles by heating. The surface is pref. of hardened eloxal and is no more than 24 hrs old. The fluorinated polymer precursor is a fluorinated monomer or oligomer, pref. PTFE. USE/ADVANTAGE - Homogeneous coating of fluorinated polymer with stable polymer-surface bonds and decreased local corrosion of pores is obtd. showing improved non-stick properties and resistance to wear and tear