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Green environmental protection flame retardant waterproof coating and preparation method thereof

A waterproof coating, green and environmental protection technology, applied in anti-corrosion coatings, fire-resistant coatings, polyurea/polyurethane coatings, etc., can solve problems affecting the application field of polyurethane waterproof coatings, material mechanical properties, damage to people's lives and property, etc. High practical value, cost reduction, and stable performance

Active Publication Date: 2019-08-20
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most coatings have environmental problems such as toxicity and volatile pungent odor. Therefore, it is necessary to develop green and environmentally friendly waterproof coatings for indoor waterproofing.
[0003] In addition, the oxygen index of polyurethane waterproof coatings without flame-retardant treatment is 17%, which is a flammable material that will release toxic gases when burned, causing damage to people's lives and property
In terms of flame retardant for waterproof coatings, although added flame retardants can have a good flame retardant effect, they have a greater impact on the mechanical properties of materials and affect the application fields of polyurethane waterproof coatings.

Method used

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  • Green environmental protection flame retardant waterproof coating and preparation method thereof
  • Green environmental protection flame retardant waterproof coating and preparation method thereof
  • Green environmental protection flame retardant waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The green and environment-friendly flame-retardant waterproof coating is made of the following raw materials in parts by weight:

[0035]

[0036] The number average molecular weight of the polyoxypropylene polyol is 1500;

[0037] The number average molecular weight of the polyoxypropylene-oxyethylene polyol is 6000.

[0038] Its preparation method is as follows:

[0039] (1) Put the powder in a heated blast drying oven, bake at 120°C for 6 hours, and dehydrate;

[0040] (2) Add polyoxypropylene polyol, polyoxypropylene-oxyethylene polyol, and chain extender to the reactor, vacuumize to -0.09MPa, and dehydrate for 6 hours at a temperature of 110°C;

[0041] (3) Control the temperature of the polyether system to 50°C, add polyisocyanate, control the reaction temperature to 80°C, and the NCO of the final system is 1.0%;

[0042] (4) Add heavy calcium carbonate, kaolin, environmental solvent, chlorinated paraffin and latent curing agent to the reaction system in pro...

Embodiment 2

[0045] The green and environment-friendly flame-retardant waterproof coating is made of the following raw materials in parts by weight:

[0046]

[0047] The number average molecular weight of the polyoxypropylene polyol is 2000;

[0048] The number average molecular weight of the polyoxypropylene-oxyethylene polyol is 5500.

[0049] Its preparation method is as follows:

[0050] (1) Put the powder in a heated blast drying oven, bake at 130°C for 5 hours, and dehydrate;

[0051] (2) Add polyoxypropylene polyol, polyoxypropylene-oxyethylene polyol, and chain extender to the reactor, vacuumize to -0.09MPa, and dehydrate for 5 hours at a temperature of 100°C;

[0052] (3) Control the temperature of the polyether system to 70°C, add polyisocyanate, control the reaction temperature to 80°C, and the NCO of the final system is 0.9%;

[0053] (4) Add heavy calcium carbonate, talcum powder, environmental protection solvent, chlorinated paraffin and latent curing agent to the reac...

Embodiment 3

[0056] The green and environment-friendly flame-retardant waterproof coating is made of the following raw materials in parts by weight:

[0057]

[0058] The number average molecular weight of the polyoxypropylene polyol is 2200;

[0059] The number average molecular weight of the polyoxypropylene-oxyethylene polyol is 5000.

[0060] Its preparation method is as follows:

[0061] (1) Put the powder in a heated blast drying oven, bake at 125°C for 4.5 hours, and dehydrate;

[0062] (2) Add polyoxypropylene polyol, polyoxypropylene-oxyethylene polyol, and chain extender to the reactor, vacuumize to -0.09MPa, and dehydrate for 4.5 hours at a temperature of 95°C;

[0063] (3) Control the temperature of the polyether system at 50°C, add polyisocyanate, control the reaction temperature at 90°C, and the final NCO of the system is 1.2%;

[0064] (4) Add talcum powder, kaolin, environment-friendly solvent, chlorinated paraffin and latent curing agent into the reaction system in p...

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Abstract

The invention relates to a waterproof paint, in particular to a green environmental protection and flame retardant waterproof paint and a preparation method thereof. The green environmental protection and flame retardant waterproof paint is prepared from the following raw materials by weight: 25-55 parts of bifunctional polyether polyol; 15-75 parts of polyether polyol with functionality of greater than or equal to 3; 150-250 parts of powder; 10-20 parts of polyisocyanate; 55-70 parts of chlorinated paraffin; 0.2-0.4 part of a catalyst; 2.4-3.4 parts of a latent curing agent; 3.0-4.0 parts of a chain extender; 5-10 parts of a flame retardant; and 150-200 parts of an environment-friendly solvent. The waterproof paint provided by the invention has the advantages of green and environment protection, good flame retardant effect and high mechanical performance, and the preparation method is simple and easy for implementation.

Description

technical field [0001] The invention relates to a waterproof coating, in particular to a green, environment-friendly, flame-retardant waterproof coating and a preparation method thereof. Background technique [0002] At present, waterproof coatings are an indispensable material in the construction industry, and are widely used in waterproofing of basements, toilets, swimming pools, and roofs. One-component moisture-curing polyurethane waterproof coating is simple in construction and does not require high substrate treatment. Generally, it can be applied when the temperature is above 0°C and the humidity is 30-98%. The one-component polyurethane waterproof coating is terminated with NCO, and reacts with moisture in the air to form a film to achieve waterproof effect. However, most coatings have environmental problems such as toxicity and volatile pungent odor. Therefore, it is necessary to develop green and environmentally friendly waterproof coatings for indoor waterproofin...

Claims

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Application Information

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IPC IPC(8): C09D175/08C09D5/18C09D5/08C09D7/61C08G18/66C08G18/48
Inventor 王文涛孙兆任张士虎李剑锋
Owner SHANDONG INOV NEW MATERIALS CO LTD
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