A kind of water-soluble polyurethane exterior wall thermal insulation coating and production method thereof

A water-soluble polyurethane, thermal insulation technology, used in polyurea/polyurethane coatings, reflective/signal coatings, coatings, etc., can solve problems such as single function, achieve excellent solubility, improve dryness, and reduce flow.

Active Publication Date: 2017-12-08
莫明鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Most of the existing thermal insulation coatings are formulated with acrylic emulsion or modified resin, and their functions are relatively simple. It is necessary to prepare a kind of external thermal insulation coating with light weight, high fire resistance, high weather resistance, environmental protection, not easy to aging, and long-term performance. Coatings, and then achieve the purpose of building energy saving, there is no very mature technology, so people are still constantly researching and testing

Method used

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  • A kind of water-soluble polyurethane exterior wall thermal insulation coating and production method thereof
  • A kind of water-soluble polyurethane exterior wall thermal insulation coating and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] First, according to weight parts, 50 parts of polyurethane prepolymer, 3 parts of N-methylol acrylamide, 2 parts of diisooctyl maleate, 0.7 parts of aniline methyl trimethoxysilane, 15 parts of rutile titanium dioxide Parts, 0.3 parts of defoamer silica TS-4400, 5 parts of superfine talcum powder, 13 parts of mixed solvent (mixture of propylene glycol methyl ether and water, weight ratio 2:11), 6 parts of hollow glass beads; leveling agent nitration Prepare 2 parts of cellulose and 2 parts of iron oxide yellow.

[0042] Production method: add 2.2 kg of ethanol with a volume concentration of 65-85% per kg of N-methylol acrylamide by weight to dissolve it, and then mix it with the polyurethane prepolymer in the reactor at a reaction temperature of 80°C and a reaction time of 2 hours. Add aniline methyl trimethoxy silane; continue the reaction for 6 hours; then add diisooctyl maleate, rutile titanium dioxide, silica TS-4400, superfine talcum powder, leveling agent, iron oxide...

Embodiment 2

[0044] First, according to weight parts, 55 parts of polyurethane prepolymer, 4 parts of N-methylolacrylamide, 3 parts of diisooctyl maleate, 0.9 parts of aniline methyl trimethoxysilane, and 18 parts of rutile titanium dioxide Parts, 0.4 parts of defoamer silica TS-4400, 7 parts of superfine talc, 15 parts of mixed solvent (mixture of propylene glycol methyl ether and water, weight ratio 2:11), 8 parts of hollow glass beads; Prepare 4 parts of N-methylpyrrolidone solution of polyurea and 1 part of iron oxide red.

[0045] Production method: add 2.2 kg of ethanol with a volume concentration of 65-85% per kg of N-methylol acrylamide by weight to dissolve it, and then mix it with the polyurethane prepolymer in the reactor. The reaction temperature is 110°C and the reaction time is 1.5 hours later. Add aniline methyl trimethoxy silane; continue the reaction for 4 hours; then add diisooctyl maleate, rutile titanium dioxide, silica TS-4400, ultrafine talcum powder, anti-settling agent...

Embodiment 3

[0047] First, according to weight parts, 60 parts of polyurethane prepolymer, 5 parts of N-methylol acrylamide, 5 parts of diisooctyl maleate, 1.2 parts of aniline methyl trimethoxysilane, and 20 parts of rutile titanium dioxide Parts, 0.5 parts of defoamer silica TS-4400, 10 parts of superfine talc, 16 parts of mixed solvent (mixture of propylene glycol methyl ether and water, weight ratio 2:11), 10 parts of hollow glass beads; Antifreeze B 6 parts of diol and 2 parts of toluidine red were prepared.

[0048] Production method: add 2.2 kg of ethanol with a volume concentration of 65-85% per kg of N-methylol acrylamide by weight to dissolve it, and then mix it with the polyurethane prepolymer in the reactor. The reaction temperature is 140°C. After 1 hour of reaction Add aniline methyl trimethoxysilane; continue the reaction for 2 hours; then add diisooctyl maleate, rutile titanium dioxide, silica TS-4400, ultrafine talc, antifreeze, toluidine red , Mix solvent and hollow glass b...

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Abstract

A water-soluble polyurethane exterior wall thermal insulation coating and a production method thereof, the coating comprises polyurethane prepolymer, N-methylolacrylamide, diisooctyl maleate, anilinomethyltrimethoxysilane , rutile titanium dioxide, defoamer silicon dioxide TS-4400, 5 parts of superfine talc powder, mixed solvent, hollow glass beads, and its preparation method: add 2.2 kg of N-methylol acrylamide by weight per kg of N-methylol acrylamide Dissolve in ethanol with a concentration of 65-85%, and then mix it with polyurethane prepolymer in a reaction kettle, the reaction temperature is 50-100°C, the reaction time is 1-2 hours, then add anilinomethyltrimethoxysilane; continue to react for 3-6 hours ; Then add diisooctyl maleate; rutile titanium dioxide; silica TS-4400; Paint products.

Description

Technical field [0001] The invention relates to a thermal insulation coating, in particular to a water-soluble polyurethane external wall thermal insulation coating and a production method thereof, belonging to the technical field of chemical compositions and preparation thereof. Background technique [0002] Due to the increasing development of world industry and the destruction of nature by human beings, energy saving and consumption reduction work 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. Building use function, energy saving and consumption reduction is another important consideration in the design of building materials. In the field of architectural coatings, the development goals at home and abroad are also towards high efficiency, energy and resource saving, harmlessness and pollution-free development. The heat-reflective heat-insulating coatings...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D5/33C09D7/12C09D7/00
Inventor 谢刚黎明煌马昭键
Owner 莫明鑫
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