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A kind of environment-friendly one-component polyurethane waterproof coating and preparation method thereof

A polyurethane waterproof, one-component technology, used in polyurea/polyurethane coatings, fire-retardant coatings, coatings, etc., can solve problems such as environmental and human hazards, and achieve improved curing speed, shortened construction period, and small water vapor permeability coefficient. Effect

Active Publication Date: 2022-02-11
北京宇阳泽丽防水材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are also many types of one-component polyurethane waterproof coatings on the market, but they generally contain organic solvents such as xylene, coal tar, asphalt, etc. The existence of these organic solvents will bring great harm to the environment and human body

Method used

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  • A kind of environment-friendly one-component polyurethane waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In Example 1, an environmentally friendly one-component polyurethane waterproof coating, its preparation raw materials include the following components calculated by weight: 35 parts of polyether polyols, 15 parts of polyisocyanate monomers, 25 parts of plasticizers, fillers 30 parts, 2 parts of poly-1,4-butylene adipate, 2 parts of zinc laurate, 0.05 parts of catalyst, 0.1 part of defoamer, 0.05 part of stabilizer, 0.1 part of latent curing agent and 3,3' - 0.1 part of dihexyloxycarbocyanine iodide salt.

[0027] Further, the polyether polyol is a combination of one or more selected from polyethylene glycol ether, polypropylene glycol ether and polyglycerol ether, the molecular weight of the polyether polyol is 2000-5000, and the hydroxyl value is 40 - 90 mg KOH / g.

[0028] Further, the mineral powder used as the filler is a mixture of one or more selected from calcined kaolin, talc powder, titanium dioxide, zinc oxide, zeolite powder, silica fume powder and calcium c...

Embodiment 2

[0039] In Example 2, an environmentally friendly one-component polyurethane waterproof coating, its preparation raw materials include the following components calculated by weight: 55 parts of polyether polyols, 25 parts of polyisocyanate monomers, 30 parts of plasticizers, fillers 39 parts, 4 parts of poly-1,4-butylene adipate, 4 parts of zinc laurate, 0.1 part of catalyst, 0.3 part of defoamer, 0.2 part of stabilizer, 0.3 part of latent curing agent and 3,3' - 0.3 parts of dihexyloxycarbocyanine iodide salt.

[0040] Further, the polyether polyol is a combination of one or more selected from polyethylene glycol ether, polypropylene glycol ether and polyglycerol ether, the molecular weight of the polyether polyol is 2000-5000, and the hydroxyl value is 40 - 90 mg KOH / g.

[0041] Further, the mineral powder used as the filler is a mixture of one or more selected from calcined kaolin, talc powder, titanium dioxide, zinc oxide, zeolite powder, silica fume powder and calcium car...

Embodiment 3

[0052] In Example 3, an environmentally friendly one-component polyurethane waterproof coating, its preparation raw materials include the following components calculated by weight: 45 parts of polyether polyols, 20 parts of polyisocyanate monomers, 28 parts of plasticizers, fillers 35 parts, 3 parts of poly-1,4-butylene adipate, 3 parts of zinc laurate, 0.08 parts of catalyst, 0.2 parts of defoamer, 0.1 part of stabilizer, 0.2 parts of latent curing agent and 3,3' - 0.2 parts of dihexyloxycarbocyanine iodide salt.

[0053] Further, the polyether polyol is a combination of one or more selected from polyethylene glycol ether, polypropylene glycol ether and polyglycerol ether, the molecular weight of the polyether polyol is 2000-5000, and the hydroxyl value is 40 - 90 mg KOH / g.

[0054] Further, the mineral powder used as the filler is a mixture of one or more selected from calcined kaolin, talc powder, titanium dioxide, zinc oxide, zeolite powder, silica fume powder and calcium...

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Abstract

The present invention relates to the technical field of polyurethane waterproof coatings, in particular to an environment-friendly one-component polyurethane waterproof coating. The raw materials for its preparation include the following components calculated in parts by weight: 35-55 parts of polyether polyol, 15-55 parts of polyisocyanate monomer 25 parts, plasticizer 25-30 parts, filler 30-39 parts, polyadipate-1,4-butylene glycol ester 2-4 parts, zinc laurate 2-4 parts, catalyst 0.05-0.1 parts, disinfectant 0.1-0.3 parts of foaming agent, 0.05-0.2 parts of stabilizer, 0.1-0.3 parts of latent curing agent and 0.1-0.3 parts of 3,3'-dihexyl oxygen-containing carbocyanine iodide salt, the environmentally friendly one-component polyurethane proposed by the present invention The waterproof coating is prepared from environmentally friendly components. Its layer has strong adhesion, dense coating, no pinholes, no air bubbles, and a small water vapor permeability coefficient. It can be waterproof and used as an air barrier layer. Construction, the construction speed is fast, and the construction period can be shortened.

Description

technical field [0001] The invention relates to the technical field of polyurethane waterproof coatings, in particular to an environment-friendly one-component polyurethane waterproof coating and a preparation method thereof. Background technique [0002] Polyurethane coatings were first industrialized in Germany in the 1940s. In the 1960s, all countries put into production one after another, and developed varieties of polyurethane coatings. The polyurethane waterproof material was developed during this period. The first two-component polyurethane waterproof material was made by the American Tire Rubber Company. Through a large number of construction applications, good results were obtained. [0003] Polyurethane waterproof coatings are divided into two-component polyurethane waterproof coatings and one-component polyurethane waterproof coatings. The advantage of one-component polyurethane waterproof coating is that it is convenient for construction, overcomes the shortcomi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D7/62C09D7/63
CPCC09D175/08C09D7/62C09D7/63C09D5/18C08K2003/2241C08K2003/2296C08K2003/265C08K13/06C08K9/10C08K9/04C08K3/346C08K3/34C08K3/22C08K3/26C08K5/098
Inventor 张晓明
Owner 北京宇阳泽丽防水材料有限责任公司
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