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Water-based non-breathable water-resistant paint and preparation method thereof

A waterproof coating, anti-breathing technology, applied in the direction of polyurea/polyurethane coating, coating, etc., to achieve the effect of blocking contact

Active Publication Date: 2015-04-01
上海奇想青晨新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Combining synthetic latex resin and pullulan with high gas-proof properties to prepare water-based gas-proof and waterproof coatings has no related technology

Method used

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  • Water-based non-breathable water-resistant paint and preparation method thereof
  • Water-based non-breathable water-resistant paint and preparation method thereof
  • Water-based non-breathable water-resistant paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A water-based air-proof and waterproof coating, by weight percentage, the water-based air-proof and waterproof coating consists of the following components:

[0033]

[0034]

[0035] The preparation method of above-mentioned water-based air-proof waterproof paint, its steps are:

[0036] (1) Preparation of water-based resin mixed emulsion: under the condition of low-speed stirring, pour the water-based EVA resin liquid into a clean container, then add water-based acrylic resin and water-based polyurethane resin in turn, mix well, and obtain the water-based resin mixed emulsion;

[0037] (2) Add the defoamer BYK-024 into the water-based resin mixed emulsion, and then stir the water-based resin mixed emulsion added with the defoamer on a multifunctional disperser at a medium speed for 0.5 hours;

[0038] (3) Slowly add film-forming aids, 50% pullulan solution, 40% paraffin wax emulsion, ethylene glycol, OT-75 and diluent under low-speed stirring, stir at low speed ...

Embodiment 2

[0041] A water-based air-proof and waterproof coating, by weight percentage, the water-based air-proof and waterproof coating consists of the following components:

[0042]

[0043]

[0044] The preparation method of above-mentioned water-based air-proof waterproof paint, its steps are:

[0045] (1) Preparation of water-based resin mixed emulsion: under the condition of low-speed stirring, pour the water-based EVA resin liquid into a clean container, then add water-based acrylic resin and water-based polyurethane resin in turn, mix well, and obtain the water-based resin mixed emulsion;

[0046] (2) Add the defoamer BYK-024 into the water-based resin mixed emulsion, and then stir the water-based resin mixed emulsion added with the defoamer on a multifunctional disperser at a medium speed for 0.5 hours;

[0047] (3) Slowly add film-forming aids, 50% pullulan solution, 40% paraffin wax emulsion, ethylene glycol, OT-75 and diluent under low-speed stirring, stir at low speed ...

Embodiment 3

[0050] A water-based air-proof and waterproof coating, by weight percentage, the water-based air-proof and waterproof coating consists of the following components:

[0051]

[0052]

[0053] The preparation method of above-mentioned water-based air-proof waterproof paint, its steps are:

[0054] (1) Preparation of water-based resin mixed emulsion: under the condition of low-speed stirring, pour the water-based EVA resin liquid into a clean container, then add water-based acrylic resin and water-based polyurethane resin in turn, mix well, and obtain the water-based resin mixed emulsion;

[0055] (2) Add the defoamer BYK-024 into the water-based resin mixed emulsion, and then stir the water-based resin mixed emulsion added with the defoamer on a multifunctional disperser at a medium speed for 1 hour;

[0056] (3) Slowly add film-forming aids, 50% pullulan solution, 40% paraffin wax emulsion, ethylene glycol, OT-75 and thinner under low-speed stirring, stir at low speed for...

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Abstract

The invention discloses water-based non-breathable water-resistant paint which comprises the following components by weight percentage: 30-80 percent of water-based resin mixed emulsion, 3 to 8 percent of a functional waterproof additive, 0.1 to 2 percent of a functional non-breathable additive, 1 to 5 percent of a filling material, 0 to 8 percent of a coalescing agent, 0 to 10 percent of a cross-linking agent, 0 to 5 percent of a diluent, 0.50 to 1.0 percent of an antifreezing agent, 0.10 to 0.15 percent of a bactericidal preservative and 0 to 2 percent of other additives. The invention further provides a preparation method of the water-based non-breathable water-resistant paint. The water-based non-breathable water-resistant paint has the advantages of safety and environmental protection, convenience in construction, wide application and the like.

Description

technical field [0001] The invention designs the water-based paint used in the paint industry, flexible packaging and other industries, and in particular relates to a water-based breathable and waterproof paint and a preparation method thereof. Background technique [0002] At present, EVOH (ethylene / vinyl alcohol copolymer) film is generally used as an air-proof material, and ethylene-vinyl alcohol material is an air-tight film newly developed by Japan Okura Industrial Company. The air-tight film is essential to maintain food freshness. The film can act as a barrier to prevent the gas from entering, thus preventing the oxidation and discoloration of oil (fat and greasy) in food. Since the film is easy to burn in case of fire, there are certain limitations in the safety of use. Breathable and waterproof coating The development and use of it can effectively replace plastic films and be widely used in more fields. [0003] Chinese patent CN 02108975.2 discloses a preparation ...

Claims

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Application Information

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IPC IPC(8): C09D123/08C09D133/00C09D175/04C09D105/00C09D7/12
CPCC08L2201/14C08L2205/035C09D7/65C09D123/08C08L33/00C08L75/04C08L91/06C08L5/00C08K5/053
Inventor 赵永旗
Owner 上海奇想青晨新材料科技股份有限公司
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