Epoxy polyurethane anticorrosive coating capable of resisting light aging and preparation method
A technology of epoxy polyurethane and anti-corrosion coatings, which is applied in the direction of anti-corrosion coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of poor chemical medium resistance and poor light aging resistance, and achieve improved light aging resistance , Good shielding and isolation effect, low air permeability
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Embodiment 1
[0027] In the anti-light aging epoxy polyurethane anti-corrosion coating and the manufacturing method of the present invention, respectively add 1 weight part of bisphenol A type epoxy resin with a medium molecular weight softening point of 50-95 DEG C and 0.35 weight part of a glass transition point epoxy resin in a reaction kettle. Hydroxyl-containing polyester resin with a Tg of 40-80°C, 0.12 parts by weight of xylene, and 0.08 parts by weight of butyl acetate, heating the reactor to 100±5°C and dispersing at a high speed until dissolved, then adding the solution to a In the stainless steel bucket, subsequently add 0.12 parts by weight of rutile titanium dioxide, 0.008 parts by weight of UV-326 ultraviolet light absorber of Zibo Vanke Chemical Co., Ltd., 0.08 parts by weight of 325 mesh talcum powder, 0.08 parts by weight of 325 mesh Mica powder, 0.01 parts by weight of Afcona-2021 organosiloxane, 0.005 parts by weight of isopropyl tris (dioctyl pyrophosphate acyloxy) titana...
Embodiment 2
[0032] Embodiment 2: light-aging anti-aging epoxy polyurethane anticorrosion coating of the present invention and manufacture method In reactor, add respectively the xylene of 1 weight part epoxy resin, 0.33 weight part polyester resin, 0.15 weight part xylene, For 0.085 parts by weight of butyl acetate, heat the reaction kettle to 100±5°C and disperse at a high speed until dissolved, then add the solution into a stainless steel bucket, then add 0.12 parts by weight of titanium dioxide and 0.008 parts by weight of UV -360 UV absorbers, 0.09 parts by weight of talcum powder, 0.09 parts by weight of mica powder, 0.01 parts by weight of organosiloxane, 0.004 parts by weight of isopropyl tris (dioctyl pyrophosphate acyloxy) titanic acid After the ester and 0.007 parts by weight of polyorganocarboxylate were dispersed at high speed for 30 minutes, they were ground with a sand mill to obtain component A.
[0033] In another stainless steel tank, 1 part by weight of diphenylmethane d...
Embodiment 3
[0036] Embodiment 3: Anti-light aging epoxy polyurethane anti-corrosion coating of the present invention and manufacturing method are in reactor, add 1 weight part bisphenol A type epoxy resin respectively, the glass transition point Tg of 0.36 weight part is 40-80 ℃ Hydroxyl-containing polyester resin, 0.13 parts by weight of xylene, 0.09 parts by weight of butyl acetate, heating the reactor temperature to 100±5°C and dispersing at a high speed until dissolved, then adding the solution into a stainless steel bucket, and then Add 0.13 parts by weight of rutile titanium dioxide, 0.01 parts by weight of UV-326 ultraviolet light absorber, 0.085 parts by weight of 400 mesh talcum powder, 0.085 parts by weight of 400 mesh mica powder, and 0.015 parts by weight of Afcona-2021 organic silicon Oxane, 0.0045 parts by weight of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate, 0.008 parts by weight of Afcona-5066 polyorganic carboxylate were dispersed at high speed for 30 minutes,...
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