The invention belongs to the technical field of material
surface chemical treatment, and particularly relates to a preparation method of a hole sealing agent of an aluminum
alloy anode oxidation film.The preparation method comprises the following steps of preparing dry gel,
oleic acid, hexogen into explosive, carrying out
detonation to obtain carbon-coated aluminum nano-particles, then mixing
microbial oil,
ethyl palmitate, amino
lithium and the like to obtain lubricating dispersied oil, by using
rapeseed oil acid,
azelaic acid, and
neopentyl glycol as a
raw material to be subjected to esterification to obtain mixed ester,
doping the carbon-coated aluminum nano-particles into the mixed ester, and preparing the hole sealing agent of the aluminum
alloy anode oxidation film, aluminum plays arole in
friction reduction and
wear resistance when a microhole of the aluminum
alloy anodized film is worn, part of the
aluminum can still be oxidized to form aluminum
oxide and fused with the
anodic oxidation film to form homogeneous phase, so that the
wear resistance and the anti-oxidation effect of the hole sealing agent are improved; the lubricating dispersed oil plays an excellent dispersing effect, so that the
penetration depth of the hole sealing agent is improved; and the carbon-coated aluminum nano-particles have an anti-oxidation function, hardened organic components after hole sealing are prevented from being oxidized, and the preparation method has a wide application prospect.