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A kind of environmentally friendly structural water-based intumescent fireproof coating and preparation method thereof

A kind of fire-resistant coating, environment-friendly technology, applied in the direction of fire-resistant coatings, coatings, etc., can solve the problems of high cost, no application value, etc., achieve low cost, excellent fire-proof effect, and improve the effect of fire-proof performance

Active Publication Date: 2022-05-10
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In patent CN112745703A, graphene and sepiolite powder are simultaneously applied to fireproof coatings. In patent CN112708316A, modified carbon nanotubes and sepiolite powder are simultaneously applied to fireproof coatings. Due to the high cost of graphene and modified carbon nanotubes, Does not have practical application value
In patent CN109535889A, silicon carbide, sepiolite, and titanium dioxide are washed with a mixed acid composed of concentrated sulfuric acid and concentrated nitric acid. Although the fire resistance can be improved to a certain extent, it will be accompanied by the generation of a large amount of waste

Method used

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  • A kind of environmentally friendly structural water-based intumescent fireproof coating and preparation method thereof
  • A kind of environmentally friendly structural water-based intumescent fireproof coating and preparation method thereof
  • A kind of environmentally friendly structural water-based intumescent fireproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] An environmentally friendly structural water-based intumescent fireproof coating, the components and their mass percentages are: acrylate core-shell emulsion 20%, MFAPP 32%, expandable graphite 24%, ascorbic acid 3.5%, sepiolite powder 6.5% , hydroxyethyl cellulose 0.5%, dispersant 0.5%, defoamer 0.5%, n-octanol 0.5%, water 12%; Its preparation method comprises the following steps:

[0053] 1) Weigh the raw materials according to the above proportioning requirements;

[0054] 2) Grind the weighed MFAPP, expandable graphite, ascorbic acid, hydroxyethyl cellulose, and sepiolite powder until there are no particles, then add water to fully grind and mix evenly; then add defoamer and dispersant, and continue to grind fully;

[0055] 3) Finally, the acrylate core-shell emulsion and n-octanol are added and thoroughly ground and mixed to obtain the fireproof coating.

Embodiment 2

[0057] A water-based expansion type fireproof coating, its preparation method is roughly the same as that of Example 1, the difference is that each component and its mass percentage are: acrylate core-shell emulsion 20%, MFAPP 32%, expandable graphite 24%, Ascorbic acid 5%, sepiolite powder 5%, hydroxyethyl cellulose 0.5%, dispersant 0.5%, defoamer 0.5%, n-octanol 0.5%, water 12%.

Embodiment 3

[0059] A water-based expansion type fireproof coating, its preparation method is roughly the same as that of Example 1, the difference is that each component and its mass percentage are: acrylate core-shell emulsion 20%, MFAPP 32%, expandable graphite 24%, Ascorbic acid 6.5%, sepiolite powder 3.5%, hydroxyethyl cellulose 0.5%, dispersant 0.5%, defoamer 0.5%, n-octanol 0.5%, water 12%.

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Abstract

The invention discloses an environment-friendly structured water-based intumescent fireproof coating. The components and their mass percentages include: 20-30% of acrylate-based emulsion, 30-36% of melamine-formaldehyde resin microencapsulated ammonium polyphosphate %, expandable graphite 20-30%, ascorbic acid 1-10%, sepiolite powder 1-10%, hydroxyethyl cellulose 0.5-1%, dispersant 0.5-1%, defoamer 0.5-1%, positive Octanol 0.5-1%, the rest is water. In the present invention, by simultaneously introducing ascorbic acid and sepiolite powder into the expandable graphite-based intumescent fireproof coating, the synergistic effect of the gas phase and solid phase of the two can significantly improve the fireproof performance, aging resistance, acid and alkali resistance and resistance of the intumescent fireproof coating obtained. Pollution performance and other performance; and the construction preparation involved is simple, the fire prevention effect is excellent, the environment is friendly, and it is suitable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of fireproof coatings, and in particular relates to an environmentally friendly structural water-based expansion fireproof coating and a preparation method thereof. Background technique [0002] Structural fire-resistant coatings belong to a class of heat-insulating coatings that are coated on the surface of structural components and can protect structural components when a fire occurs or in a high-temperature environment similar to a fire scene; It is heat-insulating fire retardant coating and intumescent fire retardant coating. [0003] Intumescent fireproof coatings are usually composed of ammonium polyphosphate, pentaerythritol, and melamine as the acid source (dehydrating agent), carbon source (char forming agent), and gas source (foaming agent) as the main body, supplemented by resin as the main body. The adhesive is composed of pigments, fillers and additives as auxiliary materials according to the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D151/00C09D5/18C09D7/20C09D7/63C09D7/61
CPCC09D151/003C09D5/185C09D7/20C09D7/63C09D7/61C09D7/70C08K2003/323C08K2201/011C08K9/10C08K3/32C08K3/04C08K5/1535C08K7/26
Inventor 刘治田石遒霍思奇王成叶国峰
Owner WUHAN INSTITUTE OF TECHNOLOGY
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