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Polyurethane anticorrosive thermal-insulation paint and preparation method thereof

A technology of thermal insulation and polyurethane, applied in antifouling/underwater coatings, reflection/signal coatings, coatings, etc., can solve the problem of single function, achieve the effect of less consumption, good process performance, and reduced flow

Inactive Publication Date: 2015-07-08
莫明鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Most of the existing heat-insulating coatings are formulated with acrylic emulsion or modified resin, and their functions are relatively simple. It is necessary to prepare a kind of exterior wall anti-corrosion coating with light weight, high fire resistance, high corrosion resistance, environmental protection, not easy to aging, and long-term effect. There is no mature technology for thermal insulation coatings to achieve the purpose of building energy saving, so people are still researching and testing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] First, in parts by weight, 45 parts of polyurethane prepolymer, 2 parts of diacetone acrylamide, 2 parts of dipropylene glycol dibenzoate, 0.7 part of aluminate coupling agent LS-822; 0.3 part of dispersant triethanolamine, rutile Type titanium dioxide 13 parts, defoamer OP-10 0.3 parts, kaolin 6 parts; mixed solvent (lignin + propylene glycol methyl ether + water, the weight ratio is 3:1:10) 11 parts, expanded perlite 5 parts, anticorrosion 3 parts of agent (Nordes C15 bactericidal preservative); 2 parts of leveling agent cellulose acetate butyrate, 2 parts of iron oxide yellow, for material preparation.

[0050] The production method is to add 2.4 kg of ethanol with a volume concentration of 55-85% per kg of diacetone acrylamide to dissolve, and then mix it with polyurethane prepolymer in a reaction kettle. The reaction temperature is 80°C, and the reaction time is 2 hours. Ester coupling agent LS-822 and dispersant triethanolamine; continue to react for 5 hours; then...

Embodiment 2

[0052] First, in parts by weight, 50 parts of polyurethane prepolymer, 3 parts of diacetone acrylamide, 3 parts of dipropylene glycol dibenzoate, 0.9 part of aluminate coupling agent LS-822; 0.5 part of dispersant triethanolamine, rutile Type titanium dioxide 15 parts, defoamer

[0053] 0.4 parts of OP—10, 8 parts of kaolin; 13 parts of mixed solvent (lignin + propylene glycol methyl ether + water, the weight ratio is 3:1:10), 7 parts of expanded perlite, preservative (1,2-benzoiso Thiazolin-3-one) 5 parts; antifreeze agent glycerol 4 parts, iron oxide red 1 part, for material preparation.

[0054] The production method is to add 2.4 kg of ethanol with a volume concentration of 55-85% per kg of diacetone acrylamide to dissolve, and then mix it with polyurethane prepolymer in a reaction kettle. The reaction temperature is 120°C, and the reaction time is 1 hour. Add alumina acid Ester coupling agent LS-822 and dispersant triethanolamine; continue to react for 4 hours; then add ...

Embodiment 3

[0056] First, in parts by weight, 55 parts of polyurethane prepolymer, 4 parts of diacetone acrylamide, 5 parts of dipropylene glycol dibenzoate, 1 part of aluminate coupling agent LS-822; 0.6 part of dispersant triethanolamine, rutile Type titanium dioxide 18 parts, defoamer OP-10 0.5 parts, kaolin 10 parts; mixed solvent (lignin + propylene glycol methyl ether + water, the weight ratio is 3:1:10) 15 parts, expanded perlite 9 parts, anticorrosion agent (1,2-benzisothiazolin-3-one) 7 parts; anti-sedimentation agent organobentonite 6 parts, for material preparation.

[0057] The production method is to add 2.4 kilograms of ethanol with a volume concentration of 55-85% per kilogram of diacetone acrylamide to dissolve, and then mix it with polyurethane prepolymer in a reaction kettle. The reaction temperature is 140 ° C, and the reaction time is 1.5 hours. Ester coupling agent LS-822 and dispersant triethanolamine; continue to react for 3 hours; then add dipropylene glycol dibenz...

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Abstract

The invention relates to a polyurethane anticorrosive thermal-insulation paint and a preparation method thereof. The paint comprises a polyurethane prepolymer, diacetone acrylamide, dipropanediol dibenzoate, an aluminate coupling agent LS-822, a dispersing agent triethanolamine, rutile titanium white, a defoaming agent OP-10, kaolin, a mixed solvent, expanded perlite and a preservative. The preparation method comprises the following steps: adding 2.4kg of 55-85 vol% ethanol into every kilo of diacetone acrylamide, dissolving, mixing with the polyurethane prepolymer in a reaction kettle, reacting at 80-140 DEG C for 1-2 hours, and adding the aluminate coupling agent LS-822 and dispersing agent triethanolamine; and continuing reacting for 3-5 hours, adding the dipropanediol dibenzoate, rutile titanium white, defoaming agent OP-10, kaolin, mixed solvent, expanded perlite and preservative, and evenly mixing to obtain the polyurethane anticorrosive thermal-insulation paint product.

Description

technical field [0001] The invention relates to a polyurethane coating, in particular to a polyurethane anti-corrosion thermal insulation coating and a preparation method thereof, belonging to the technical field of chemical composition and its preparation. Background technique [0002] Due to the increasingly developed world industry and the destruction of nature by humans, energy conservation and consumption reduction has attracted the attention and attention of countries all over the world. my country's building energy consumption accounts for more than 30% of human energy consumption. Improve the thermal insulation performance of buildings and improve The use function of buildings, energy saving and consumption reduction are another important considerations in the design of building material selection. In the field of architectural coatings, the development goals at home and abroad are also developing in the direction of high efficiency, energy and resource saving, harmle...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D5/33C09D5/14C09D7/12C08F283/00C08F220/58
Inventor 马昭键杨明慧谢刚李珠肖
Owner 莫明鑫
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