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Single-component polyurethane waterproof coating capable of being directly compounded with asphalt coiled material

A polyurethane waterproof, one-component technology, applied in polyurea/polyurethane coatings, fireproof coatings, wax coatings, etc., can solve the problems of high surface energy, low surface energy, poor adhesion, etc., to improve hydrophobicity, improve resistance Flammability, stability, and firm connection

Pending Publication Date: 2021-01-05
苏州市月星建筑防水材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the wide variety of waterproof materials, waterproof construction design or maintenance often involves the compounding or lapping of different types of materials, especially the compounding or lapping of waterproof membranes and waterproof coatings, but due to the asphalt waterproof membranes, polymer waterproof membranes Both are non-polar materials with low surface energy. Polyurethane coating film is a polar material with high surface energy. The two are overlapped or composited, and there are problems of poor adhesion or even falling off. Composite one-component polyurethane waterproof coating to solve the problems raised above

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: A one-component polyurethane waterproof coating that can be directly compounded with asphalt coils, including the following raw materials in proportions by weight: a mixture of diphenylmethane diisocyanate and toluene diisocyanate in a ratio of 10 25 parts, polyether diol and polyether triol mixed according to 5:1 mixture, 15 parts of styrene-butadiene rubber, 1 part of formic acid peroxide, 0.5 parts of organometallic catalyst, 10 parts of silicon-containing hydrophobic agent, silicone 1 part of oxane, 3 parts of imine type latent curing agent, 20 parts of chlorinated paraffin, 20 parts of polyol dibasic ester solvent, 45 parts of barium sulfate, 5 parts of phosphite antioxidant, salicylate 0.1 part of UV absorber, 0.1 part of dimethyl methyl phosphate and 1 part of defoamer.

[0022] The one-component polyurethane waterproof coating with raw materials according to this ratio has strong oxidation resistance.

Embodiment 2

[0023] Embodiment 2: A one-component polyurethane waterproof coating that can be directly compounded with asphalt coils, including the following raw materials in proportions by weight: a mixture of diphenylmethane diisocyanate and toluene diisocyanate in a ratio of 10 25 parts, polyether diol and polyether triol mixed according to 5:1 mixture, 15 parts of styrene-butadiene rubber, 1 part of formic acid peroxide, 0.5 parts of organometallic catalyst, 10 parts of silicon-containing hydrophobic agent, silicone 1 part of oxane, 3 parts of imine type latent curing agent, 20 parts of chlorinated paraffin, 20 parts of polyol dibasic ester solvent, 45 parts of barium sulfate, 0.1 part of phosphite antioxidant, salicylate 5 parts of UV absorber, 0.1 part of dimethyl phosphate and 1 part of coupling agent.

[0024] The one-component polyurethane waterproof coating according to the proportion of raw materials has strong ultraviolet aging resistance.

Embodiment 3

[0025] Embodiment 3: A one-component polyurethane waterproof coating that can be directly compounded with asphalt coils, including the following raw materials in proportions by weight: a mixture of diphenylmethane diisocyanate and toluene diisocyanate in a ratio of 10 25 parts, polyether diol and polyether triol mixed according to 5:1 mixture, 15 parts of styrene-butadiene rubber, 1 part of formic acid peroxide, 0.5 parts of fatty amine catalyst, 10 parts of silicon-containing hydrophobic agent, organic 1 part of siloxane, 3 parts of imine type latent curing agent, 20 parts of chlorinated paraffin, 20 parts of polyol dibasic ester solvent, 45 parts of barium sulfate, 0.1 part of phosphite antioxidant, salicylate 0.1 part of UV absorber, 5 parts of dimethyl methyl phosphate and 1 part of defoamer.

[0026] The one-component polyurethane waterproof coating according to the proportion of raw materials has strong flame retardancy and stability.

[0027] The beneficial effects of ...

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PUM

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Abstract

The invention relates to the technical field of waterproof coatings, and discloses a single-component polyurethane waterproof coating capable of being directly compounded with an asphalt coiled material. The flame-retardant polyurethane elastomer is prepared from following raw materials in parts by weight: 5 to 15 parts of aliphatic isocyanate, 1 to 50 parts of non-hydrophobic polyether polyol, 2to 30 parts of epoxy modified compound of non-polar polymer, 0.02 to 1 part of catalyst, 2 to 20 parts of reactive hydrophobic agent, 0.2 to 2 parts of non-reactive hydrophobic agent, 0.2 to 5 parts of latent curing agent, 5 to 30 parts of plasticizer, 5 to 30 parts of environment-friendly solvent, 10 to 80 parts of filler, 0.1 to 5 parts of an antioxidant, 0.1 to 5 parts of an ultraviolet absorbent, 0.1 to 5 parts of a flame retardant and 0.1 to 2 parts of an auxiliary agent. The single-component polyurethane waterproof coating capable of being directly compounded with the asphalt coiled material can solve the problems of poor adhesion and even falling off due to the fact that the asphalt waterproof coiled material and the macromolecule waterproof coiled material are both non-polar materials and low in surface energy; besides, since the polyurethane coating film is a polar material and high in surface energy, the two parts are poor in adhesion and even have a detachment problem underlap joint or lamination.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a one-component polyurethane waterproof coating which can be directly compounded with asphalt coils. Background technique [0002] Polyurethane waterproof coatings are prepolymers containing isocyanate groups formed by addition polymerization of isocyanate and polyether, together with catalysts, anhydrous additives, anhydrous fillers, solvents, etc., and processed through mixing and other processes One-component polyurethane waterproof coating, asphalt waterproof membrane refers to a roll material made of asphalt material, tire material and anti-adhesive material spread on the surface, also known as linoleum, which is often used for pasting waterproof layers. [0003] Due to the wide variety of waterproof materials, waterproof construction design or maintenance often involves the compounding or lapping of different types of materials, especially the compounding or lap...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D109/06C09D191/06C09D5/18C09D7/61C09D7/48C09D7/20
CPCC08K2003/3045C08L2201/08C08L2205/03C09D5/18C09D175/08C09D7/20C09D7/48C09D7/61C08L9/06C08L91/06C08K13/02C08K3/30C08K5/524C08K5/5333
Inventor 张小友吴红华张玲
Owner 苏州市月星建筑防水材料有限公司