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High-solid environment-friendly single-component polyurea coating and preparation method thereof

An environmentally friendly, single-component technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of high cost of single-component polyurea coatings, cannot be widely promoted, and is not environmentally friendly, so as to improve storage stability, Easy to promote and avoid pollution effects

Active Publication Date: 2019-09-24
XINJIANG KENENG WATERPROOF & PROTECTION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention designs a high-solid environment-friendly single-component polyurea coating and its preparation method, which fundamentally solves the high cost of the existing single-component polyurea coating, which cannot be popularized in large quantities and is easy to gel. Defects such as short storage period and insufficient environmental protection, at the same time, using cheap and easy-to-buy four-line oil as a toughening agent improves the comprehensive mechanical properties of one-component polyurea coatings, with good production effects and high product quality

Method used

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  • High-solid environment-friendly single-component polyurea coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] High-solid environment-friendly one-component polyurea coating is prepared from the following raw materials by weight:

[0026] Polyether polyol (330N) 10-20 parts, polyether polyol (DDL-2000) 170-200 parts, polyether polyol (DDL-1000) 60-70 parts, diphenylmethane diisocyanate (MDI) 60 parts -70 parts, blocking agent 1: 30-50 parts; amino-terminated polyether (T-5000) 1-5 parts, amino-terminated polyether (D-2000) 50-70 parts, amino-terminated polyether (D-2000) -400) 10-15 parts, sealing agent 2: 10-15 parts, chain extender diethyltoluenediamine (DETDA) 3-5 parts, pigment black carbon black 1-3 parts, polyamide wax powder 0.3- 1.0 parts, fumed silica 10-20 parts, ultra-fine fly ash 30-50 parts, toughening agent minus four line oil 10-20 parts, defoamer 0.2-0.4 parts, high boiling point solvent dibasic acid ester ( DBE) 10-20 parts.

Embodiment 2

[0028] High-solid environment-friendly one-component polyurea coating is prepared from the following raw materials by weight:

[0029] Polyether polyol (330N) 30-40 parts, polyether polyol (DDL-2000) 170-200 parts, polyether polyol (DDL-1000) 40-60 parts, diphenylmethane diisocyanate (MDI) 80 parts -90 parts, blocking agent 1: 30-50 parts; amino-terminated polyether (T-5000) 5-10 parts, amino-terminated polyether (D-2000) 50-70 parts, amino-terminated polyether (D-2000) -400) 5-10 parts, blocking agent 2: 10-15 parts, chain extender diethyltoluenediamine (DETDA) 3-5 parts, pigment black carbon black 1-3 parts, polyamide wax powder 0.3- 1.0 parts, fumed silica 10-20 parts, ultra-fine fly ash 30-50 parts, toughening agent minus four line oil 10-20 parts, defoamer 0.2-0.4 parts, high boiling point solvent dibasic acid ester ( DBE) 10-20 parts.

Embodiment 3

[0031] High-solid environment-friendly one-component polyurea coating is prepared from the following raw materials in parts by weight:

[0032] Polyether polyol (330N) 40-50 parts, polyether polyol (DDL-2000) 170-200 parts, polyether polyol (DDL-1000) 40-50 parts, diphenylmethane diisocyanate (MDI) 90 parts -100 parts, sealing agent 1: 40-60 parts; amino-terminated polyether (T-5000) 5-10 parts, amino-terminated polyether (D-2000) 50-70 parts, amino-terminated polyether (D-2000) -400) 5-10 parts, blocking agent 2: 10-15 parts, chain extender diethyltoluenediamine (DETDA) 3-5 parts, pigment black carbon black 1-3 parts, polyamide wax powder 0.3- 1.0 parts, fumed silica 10-20 parts, ultra-fine fly ash 30-50 parts, toughening agent minus four line oil 10-20 parts, defoamer 0.2-0.4 parts, high boiling point solvent dibasic acid ester ( DBE) 10-20 parts.

[0033] Among them, blocking agent 1 includes γ-aminopropyl triethoxysilane, γ-glycidyl etheroxypropyl trimethoxysilane, γ-mer...

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Abstract

The invention discloses high-solid-content environment-friendly single component polyurea paint and a preparation method thereof. The paint is prepared from polyether polyol, diphenylmethane diisocyanate, a sealing agent, amine terminated polyether, amine terminated polyether, amine terminated polyether, a chain extender (diethyl methyl benzene diamine), pigment and filler carbon black, polyamide wax powder, fumed silica, coal ash, a toughening agent (vacuum cut distillate oil), a defoaming agent, a solvent (dibasic acid ester) and the like. The paint has the advantage of fundamentally solving the problems that the high cost of the existing single component polyurea paint is unfavorable for promotion and application, storing for a long time is incapable due to short storage period, and the paint is not environment-friendly due to addition of a volatile organic solvent; meanwhile, the vacuum cut distillate oil which is low in cost and is purchased easily is taken as the toughening agent, the comprehensive mechanical properties of the single component polyurea paint are improved, the product effect is good, the product quality is high, and the production cost is decreased, so that a patent product can be popularized and applied energetically; the added solvent is a solvent with a high boiling point, so that the purpose of environmental protection is achieved.

Description

technical field [0001] The invention relates to a polyurea coating, in particular to a high-solid-content environment-friendly single-component polyurea coating and a preparation method thereof, belonging to the field of polyurea coatings. Background technique [0002] Polyurea material has excellent wear resistance, impermeability, thermal stability, corrosion resistance and good comprehensive mechanical properties. It is widely used in construction waterproofing, crack repair and leakage control projects. It is divided into two-component polyurea Material, one-component polyurea material, and two-component polyurea can be divided into two-component spray polyurea elastomer and two-component slow-response hand-scrape polyurea coating. [0003] Spraying polyurea elastomer has its own existence: 1) Insufficient wetting ability with the substrate and poor adhesion; 2) It does not meet the environmental protection requirements of hydraulic buildings; 3) Spraying equipment is ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D7/61C09D7/65C09D7/20C09D7/00C08G18/76C08G18/66C08G18/48C08G18/32
Inventor 任银霞曹登云朱永斌
Owner XINJIANG KENENG WATERPROOF & PROTECTION TECH CO LTD
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