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Preparation method for solvent-free root-puncture-resistant waterproof polyurethane paint

A polyurethane waterproof and solvent-free technology, applied in the field of polyurethane coatings, can solve problems such as plant death, poor root thorn resistance, and environmental pollution

Inactive Publication Date: 2018-01-26
天津市奇才防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the city, green roofs are more and more popular among people. It not only greens the city, but also improves the living environment of human beings. In addition, more and more underground spaces are used. There are a lot of greening projects on top of it, but Problems such as waterproofing and root resistance have appeared again and again. A single anti-root thorn coil can no longer meet the needs of complex structure anti-root thorn construction. The emergence of anti-root thorn waterproof coating has filled the gap
[0004] (2) Affect the normal growth of plants
Improper addition of root inhibitors will affect the normal growth of plants, and even cause plant death, affecting greening projects
[0005] (3) The anti-root thorn effect is poor
[0007] (4) Ordinary two-component anti-root thorn polyurethane waterproof coating contains organic solvents, which will cause volatilization of organic solvents during construction, resulting in pollution to the environment and harm to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Component A consists of the following components by weight:

[0043] Raw material name Weight ratio

[0044] Polyether diol 300 parts

[0045] Polyether triol 80 parts

[0046] Toluene diisocyanate (TDI) 119 parts

[0047] Stabilizer 1 part

[0048] Component B consists of the following components by weight:

[0049] Raw material name Weight ratio

[0050] Polyether triol 500 parts

[0051] Dioctyl phthalate 250 parts

[0052] Mica powder 110 parts

[0053] Ground calcium carbonate 100 parts

[0054] Cross-linking agent 19 parts

[0055] Catalyst 0.4 parts

[0056] Thixotropic agent 6 parts

[0057] Red iron oxide 4 parts

[0058] Chemical root inhibitor 0.6 parts

[0059] Other 10 copies

[0060] Process engineering:

[0061] (1) Add 300 parts of polyether diol, 80 parts of polyether triol and 1 part of stabilizer into the reaction kettle.

[0062] (2) Raise the temperature to 80°C to 100°C and start stirring.

[0063] (3) Vacuum dehydration and degass...

Embodiment 2

[0073] Component A consists of the following components by weight:

[0074] Raw material name Weight ratio

[0075] Polyether diol 250 parts

[0076] Polyether triol 100 parts

[0077] Toluene diisocyanate (TDI) 147 parts

[0078] Stabilizer 3 parts

[0079] Component B consists of the following components by weight:

[0080] Raw material name Weight ratio

[0081] Polyether triol 550 parts

[0082] Dioctyl phthalate 200 parts

[0083] Mica powder 100 parts

[0084] Ground Calcium Carbonate 110 parts

[0085] Cross-linking agent 19 parts

[0086] Catalyst 0.4 parts

[0087] Thixotropic agent 4 parts

[0088] Iron oxide red 6 parts

[0089] Chemical root inhibitor 0.6 parts

[0090] Other 10 copies

[0091] Process engineering:

[0092] (1) Add 250 parts of polyether diol, 100 parts of polyether triol and 3 parts of stabilizer into the reaction kettle.

[0093] (2) Raise the temperature to 80°C to 100°C and start stirring.

[0094] (3) Vacuum dehydration and dega...

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Abstract

The invention provides a root-puncture-resistant waterproof polyurethane paint. The root-puncture-resistant waterproof polyurethane paint is a solvent-free environment-friendly waterproof polyurethanepaint which is prepared by mixing a component A and a component B with a chemical root-blocking agent. Scaly mica powder is added as a filling material and can fill in pores in a waterproof film to improve the compactness of the film; the toughness of the film is improved without increase of cost; penetration of ultraviolet rays and moisture is stopped, and cracking and efflorescence of the filmare prevented, so the durability and waterproofness of the film are improved; and the ageing resistance and the ultraviolet resistance of the film are enhanced. Compared with conventional root-puncture-resistant coiled materials, the paint provided by the invention has better water resistance and root-puncture resistance and is convenient to construct. The paint contains no solvent, and is non-toxic, odorless and environment-friendly. In addition, the paint also has the characteristics of good elasticity, good bonding performance, good adaptability to construction, etc., and is a novel waterproof polyurethane paint.

Description

technical field [0001] The invention relates to a polyurethane coating, in particular to a thorn-resistant, solvent-free polyurethane waterproof coating. Background technique [0002] With the improvement of people's living standards and living conditions, people put forward higher requirements for the living and working environment. With the development of the city, green roofs are more and more popular among people. It not only greens the city, but also improves the living environment of human beings. In addition, more and more underground spaces are used. There are a lot of greening projects on top of it, but Problems such as waterproofing and root resistance have emerged again and again. A single anti-root thorn coil can no longer meet the needs of complex structure anti-root thorn construction. The emergence of anti-root thorn waterproof coating has filled the gap. Among them, anti-root thorn waterproof coatings are mostly water-emulsion type, and there are many interf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/08C09D7/61C09D7/63C08G18/76C08G18/48
Inventor 李会平宋正红李奇智
Owner 天津市奇才防水材料有限公司
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