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A kind of intermediate paint with excellent sealing performance and preparation method thereof

An intermediate paint, an excellent technology, applied in coatings, polyurea/polyurethane coatings, anti-corrosion coatings, etc., can solve the problems of epoxy resins such as poor aging resistance, general sealing performance, and easy chalking, and achieve low cost and high anti-corrosion performance Excellent, good sealing effect

Active Publication Date: 2021-03-23
安徽科赛富新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy resin has good film-forming properties and high adhesion, but epoxy resin is not resistant to aging, easy to pulverize, and the sealing performance is average

Method used

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  • A kind of intermediate paint with excellent sealing performance and preparation method thereof
  • A kind of intermediate paint with excellent sealing performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An intermediate paint with excellent sealing performance, prepared by weighing the following raw materials:

[0025] 100 grams of phosphorus polyol (Exolit OP560), 17 grams of polyester resin (polycarbonate diol), 10 grams of dispersant BYK-307, 5 grams of zinc stearate (the role of zinc stearate is to make the paint easy to sand , convenient to continue painting on its surface), 1 gram of pigment, 10 gram of filler (titanium dioxide), 0.1 gram of polyether defoamer, 2 gram of anti-settling agent (polyethylene wax), 0.1 gram of leveling agent BYK-S706 , 171 grams of diluent (ethyl acetate) and 133 grams of curing agent TDI.

[0026] Prepare an intermediate paint with excellent sealing performance according to the following steps:

[0027] Step 1, add 17 grams of polyester resin to the paint mixing tank, then add 35 grams of ethyl acetate to it, and start stirring at a stirring speed of 400-600 rpm until a vortex appears in the center of the liquid surface;

[0028] St...

Embodiment 2

[0032] An intermediate paint with excellent sealing performance, prepared by weighing the following raw materials:

[0033] 450 grams of phosphorus polyol (Exolit OP560), 175 grams of polyester resin (polycaprolactone diol), 45 grams of dispersant BYK-330, 23 grams of zinc stearate, 4 grams of pigment, 50 grams of filler (calcium carbonate and mica powder mixture), 0.5 g polyether defoamer, 9 g anti-settling agent (bentonite), 0.5 g leveling agent BYK-S706, 830 g diluent (butyl acetate and xylene mixture) and 660 g curing agent TDI-TMP adduct.

[0034] The preparation method of the intermediate paint of this embodiment is the same as the preparation method of the intermediate paint of embodiment 1.

Embodiment 3

[0036] An intermediate paint with excellent sealing performance, prepared by weighing the following raw materials:

[0037] 900 grams of phosphorus polyol (ExolitOP560), 750 grams of polyester resin (adipic acid polyester polyol), 90 grams of dispersant BYK-330, 50 grams of zinc stearate, 10 grams of pigment, 100 grams of filler (talc Powder), 1 gram of polyether modified silicon defoamer, 45 grams of anti-settling agent (polyamide wax), 1 gram of leveling agent BYK-S706, 1870 grams of thinner (methyl ethyl ketone) and 1520 grams of curing agent TDI-TMP plus into things.

[0038] The preparation method of the intermediate paint of this embodiment is the same as the preparation method of the intermediate paint of embodiment 1.

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PUM

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Abstract

The invention discloses intermediate paint with excellent sealing capability. The intermediate paint with the excellent sealing capability is prepared from the following components in percentages by mass in a mixing manner: 20-23% of phosphorus-containing polyol, 4-16% of polyester resin, 1-2.5% of a dispersing agent, 0.1-1.5% of zinc stearate, 0.1-10% of pigment, 0.1-12% of filler, 0.1-10% of a defoaming agent, 0.1-2.0% of a suspending agent, 0.1-0.5% of a leveling agent, 36-54% of a diluent and 26-30% of a curing agent. The anticorrosive intermediate paint can be used for corrosion prevention on steel materials, and is used with the corresponding primer, moreover, the intermediate paint is convenient to construct, stable in storage and good in compatibility, and can coat oil primer, further, oil top-coat can coat the surface of the intermediate paint, and the intermediate paint has ultra-high acid and alkali resistance, salt mist resistance and weather resistance.

Description

technical field [0001] The invention relates to an intermediate paint with excellent sealing performance, and also relates to a preparation method of the intermediate paint, which belongs to the technical field of coatings. Background technique [0002] As my country's industrialization leaps from the mid-term to the high-end, major engineering projects in my country are in full swing. Due to the advantages of high strength, good plasticity and toughness, light weight, and steel structure, which is easy to manufacture, short construction period, suitable for structures with large spans, high heights, and heavy loads, steel has been widely used in the construction industry. . However, if the steel structure is in contact with air, rainwater, etc. for a long time, it will rot and so on. According to incomplete statistics of developed countries, the annual economic loss due to corrosion accounts for about 4% of the total output value of the national economy. Corrosion of ste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D175/06C09D5/08C09D7/61C09D7/63C08G18/66C08G18/32
CPCC08G18/3878C08G18/6633C08K2003/2241C08L2205/03C09D5/08C09D175/04C09D175/06C09D7/61C09D7/63C08L23/06C08K5/098C08K3/22C08L71/00C08K13/02C08K3/26C08K3/34C08L77/00
Inventor 汪志勇杨玉
Owner 安徽科赛富新材料科技有限公司