Preparation method of anticorrosion epoxy resin embroidered coating containing coupled, dispersed and modified pigment fillings
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A technology of epoxy resin tapes, pigments and fillers, applied in the field of coatings, can solve the problems of easy aging, poor toughness and high temperature resistance, etc., achieve good corrosion resistance, increase curing crosslinking degree, and improve self-corrosion potential
Inactive Publication Date: 2018-03-09
马鞍山天宇船舶制造有限公司
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[0002] Coating protection method is the most effective and widely used method to prevent metal corrosion, and epoxy resin is currently the most widely used anti-corrosion coating, but due to the shortcomings of epoxy coating itself, such as brittleness and easy aging, epoxy resin coatings are One of the important organic coatings, but its toughness and high temperature resistance are not good, and it usually needs to be modified
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[0022] A method for preparing an anti-corrosion epoxy resin tape embroidery coating containing coupling-dispersed modified pigments and fillers, characterized in that, the steps are as follows:
[0023] (1) Surface modification of pigments and fillers:
[0024] Mix 12kg of talcum powder, 10kg of iron oxide red, 8kg of zinc phosphate, and 8kg of aluminum tripolyphosphate, add 2kg of dispersant, 0.5kg of titanate coupling agent and deionized water, and grind for 2 hours with a dispersing sander to obtain a pigment slurry ;
[0025] (2) Coupling modification of graphene nanosheets:
[0026] Make n-butanol and xylene into a mixed solvent at a mass ratio of 1:3, add the mixed solvent to 4kg of graphene nanosheets at a ratio of 1:2, add 0.1kg of coupling agent KH550, and stir evenly for 2 hours with ultrasound to obtain a coupling modified Permanent graphene nanosheet slurry;
[0027] (3) Preparation of organic-inorganic hybrid silica sol:
[0028] Mix 1kg KH560, 10kg tetraethyl...
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Abstract
The invention discloses a preparation method of an anticorrosion epoxy resin embroidered coating containing coupled, dispersed and modified pigment fillings. The preparation method is characterized bycomprising the following steps: mixing talcum powder, iron oxide red, zinc phosphate and aluminum triphosphate, adding a dispersing agent, a titanate coupling agent and deionized water, dispersing, and grinding to obtain pigment slurry; adding a mixed solvent and KH550 into a graphene nanosheet, and carrying out uniform ultrasonic treatment, so as to obtain coupled and modified graphene nanosheetslurry; uniformly mixing KH560, ethyl orthosilicate and isopropanol, so as to obtain a component A; mixing isopropanol with deionized water, dropwise adding the mixed solution into the component A, and carrying out hydrolysis and polycondensation, so as to obtain hybridized silicon sol; dropwise adding diethanol amine and polyether amine into epoxy resin for reaction, dropwise adding glacial acetic acid for reaction, adding deionized water, stirring for emulsification so as to obtain an epoxy resin emulsion, mixing the epoxy resin emulsion with the obtained materials in foresaid steps, addinga polyurethane flatting agent, a film forming aid and a defoaming agent, uniformly mixing, and mechanically dispersing, so as to obtain the coating.
Description
technical field [0001] The invention relates to the field of coatings, in particular to a preparation method of an anti-corrosion epoxy resin band embroidery coating containing coupling dispersed modified pigments and fillers. Background technique [0002] Coating protection method is the most effective and widely used method to prevent metal corrosion, and epoxy resin is currently the most widely used anti-corrosion coating, but due to the shortcomings of epoxy coating itself, such as brittleness and easy aging, epoxy resin coatings are One of the important organic coatings, but its toughness and high temperature resistance are not good, and it usually needs to be modified. Graphene and graphite nanosheets are emerging two-dimensional nanocarbon materials, which have a lamellar structure and have good stability and barrier properties to water, oxygen, and ions. When used as fillers in traditional coatings, they can play a good role. Physical shielding effect, thereby impro...
Claims
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