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Novel polyurethane waterproof coating and preparation method thereof

A polyurethane waterproof and water-based polyurethane technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems that polyurethane waterproof coatings do not have quick-drying function, affect the efficiency of painting assembly line operations, and have long intervals between secondary coatings, etc. , to achieve good gloss and color retention, moderate internal stress, and good impact resistance

Inactive Publication Date: 2021-04-30
宿州滋原科技咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the polyurethane waterproof coating in the prior art does not have the quick-drying function under low stress, and generally has a long drying time, which leads to a long interval between secondary coatings and seriously affects the operating efficiency of the coating line. problem, and proposed a new type of polyurethane waterproof coating and its preparation method

Method used

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  • Novel polyurethane waterproof coating and preparation method thereof

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Effect test

Embodiment 1

[0023] A novel polyurethane waterproof coating proposed by the present invention comprises the following raw materials in parts by weight: 40 parts of water-based polyurethane, 20 parts of acrylic emulsion, 10 parts of organic bentonite, 5 parts of modifier, 30 parts of solvent, dibutyl phthalate 3 parts, 1 part of dispersant, 2 parts of defoamer.

[0024] Its preparation method comprises the following steps:

[0025] S1. In parts by weight, weigh 40 parts of water-based polyurethane, 20 parts of acrylic emulsion, 10 parts of organic bentonite, 5 parts of modifier, 30 parts of solvent, 3 parts of dibutyl phthalate, 1 part of dispersant, 2 parts of antifoaming agent, standby, described modifying agent is made by following method: in the mixed solution that the water of the toluene of 8 weight parts and 20 weight parts forms, add the zinc oxide of 10 weight parts and the three Ethanolamine oleic acid soap, ultrasonically shake and mix at 40°C for 10 minutes, add 1 weight part o...

Embodiment 2

[0030] A novel polyurethane waterproof coating proposed by the present invention comprises the following raw materials in parts by weight: 45 parts of water-based polyurethane, 22 parts of acrylic emulsion, 12 parts of organic bentonite, 6 parts of modifier, 35 parts of solvent, dibutyl phthalate 3.5 parts, 1.5 parts of dispersant, 2.5 parts of defoamer.

[0031] Its preparation method comprises the following steps:

[0032] S1. In parts by weight, weigh 45 parts of water-based polyurethane, 22 parts of acrylic emulsion, 12 parts of organic bentonite, 6 parts of modifier, 35 parts of solvent, 3.5 parts of dibutyl phthalate, 1.5 parts of dispersant, 2.5 parts of antifoaming agent, standby, described modifying agent is made by following method: in the mixed solution that the water of 9 parts by weight of toluene and 22 parts by weight forms, add the zinc oxide of 11 parts by weight and the three parts by weight of Ethanolamine oleic acid soap, ultrasonically shake and mix at 45...

Embodiment 3

[0037] A novel polyurethane waterproof coating proposed by the present invention comprises the following raw materials in parts by weight: 50 parts of water-based polyurethane, 25 parts of acrylic emulsion, 15 parts of organic bentonite, 8 parts of modifier, 40 parts of solvent, dibutyl phthalate 4 parts, 2 parts of dispersant, 3 parts of defoamer.

[0038] Its preparation method comprises the following steps:

[0039]S1. In parts by weight, weigh 50 parts of raw material water-based polyurethane, 25 parts of acrylic emulsion, 15 parts of organic bentonite, 8 parts of modifier, 40 parts of solvent, 4 parts of dibutyl phthalate, 2 parts of dispersant, 3 parts of antifoaming agent, standby, described modifying agent is made by following method: in the mixed solution that the water of 10 weight parts toluene and 25 weight parts forms, add the zinc oxide of 13 weight parts and the three Ethanolamine oleic acid soap, ultrasonically shake and mix at 50°C for 14 minutes, add 1.5 par...

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Abstract

The invention belongs to the technical field of waterproof coatings, particularly relates to a novel polyurethane waterproof coating and a preparation method thereof, and solves the problems that in the prior art, a polyurethane waterproof coating does not have a quick-drying function under low stress, the drying time is generally long, the secondary coating interval time is long, and the operation efficiency of a coating assembly line is seriously influenced. The novel polyurethane waterproof coating is prepared from the following raw materials: 40 to 60 parts of waterborne polyurethane, 20 to 30 parts of acrylic emulsion, 10 to 20 parts of organic bentonite, 5 to 12 parts of a modifier, 30 to 50 parts of a solvent, 3 to 5 parts of dibutyl phthalate, 1 to 3 parts of a dispersing agent and 2 to 4 parts of a de-foaming agent. The preparation process is simple, the preparation conditions are mild, the raw materials are simple and easy to obtain, and the obtained waterproof coating is short in drying time, high in adhesive force, high in coating flexibility, high in impact resistance, high in weather resistance and high in gloss and color retention performance.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a novel polyurethane waterproof coating and a preparation method thereof. Background technique [0002] Polymer waterproof coatings generally refer to waterproof coatings made of synthetic resin emulsion as the basic film-forming material. As a kind of functional architectural coatings, polymer waterproof coatings have been widely used in waterproofing projects of structural parts such as roofs, basements, kitchens and bathrooms, and exterior walls in recent years. Polyurethane (PU) waterproof coating is a new type of polymer waterproof material that appeared in Europe, America and Japan in the 1960s. The polymer is used as the main body, and then fillers and additives are added to make waterproof coatings. Because it overcomes the shortcomings of traditional asphalt series waterproof coatings and waterproof membranes, it has the advantages of excellent overall wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D133/04C09D7/63C09D7/62C09D7/61C09D7/20
CPCC08K2003/2227C08K2003/2296C09D175/04C09D7/20C09D7/61C09D7/62C09D7/63C08L33/04C08K13/06C08K3/346C08K5/12C08K3/22C08K5/17C08K5/09C08K5/13
Inventor 殷海红
Owner 宿州滋原科技咨询有限公司
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