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Double-component expansion type fireproof coating and preparation method thereof

A kind of technology of fireproof coating and expansion type, which is applied in the direction of fireproof coating, epoxy resin coating, coating, etc. It can solve the problems of poor water resistance and low mechanical strength, achieve good cohesion, improve fire resistance limit, and increase the effect of expansion ratio

Inactive Publication Date: 2019-12-20
石家庄市油漆厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The expansion system of intumescent fireproof coatings often uses a ternary expansion system of dehydration charring catalyst (acid source), charring agent (carbon source), and foaming agent (gas source), which has disadvantages such as poor water resistance and low mechanical strength.

Method used

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  • Double-component expansion type fireproof coating and preparation method thereof
  • Double-component expansion type fireproof coating and preparation method thereof
  • Double-component expansion type fireproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0032] Component A of the two-component intumescent fire retardant coating is prepared by using the formula composition shown in the following table.

[0033]

Embodiment 1

[0034] The preparation method of above-mentioned embodiment 1-3 two-component intumescent fire retardant coating component A:

[0035] Dispersion: add epoxy resin, amino resin, defoamer, bentonite and dispersant to the batching tank in turn, and disperse at 1500r / min for 15 minutes;

[0036] Grinding: Add the dispersed materials into the grinding tank, add titanium dioxide, flame retardant fillers, melamine, pentaerythritol, and reinforcing fillers in sequence, and grind to a fineness of less than 80 μm;

[0037] After the fineness is qualified, stir in ammonium polyphosphate, expanded graphite, add toluene and butanol, stir evenly, and then obtain the component A of the two-component intumescent epoxy fireproof coating;

[0038] Component A of the two-component intumescent epoxy fireproof coating prepared in Example 1-3 and component B modified polyamide epoxy curing agent are mixed uniformly in a mass ratio of 4:1 to obtain a two-component intumescent ring. Oxygen fire reta...

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Abstract

The invention discloses a double-component expansion type fireproof coating which consists of a component A and a component B, wherein the component A consists of the following raw materials in partsby weight: 14-18 parts of an epoxy resin, 2-3 parts of an amino resin, 0.2-0.6 part of bentonite, 0.2-0.5 part of a defoaming agent, 0.2-0.5 part of a dispersant, 8-11 parts of titanium dioxide, 6-10parts of flame-retardant filler, 4-6 parts of expanded graphite, 20-30 parts of Ammonium Polyphosphate, 5-9 parts of melamine, 5-9 parts of pentaerythritol, 2-3 parts of reinforcing filler, 11-12 parts of xylene and 3-5 parts of butanol; and the component B is a modified polyamide epoxy curing agent. The fireproof coating is excellent in flame retardancy, high in mechanical strength and excellentin water resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a two-component intumescent fireproof coating, and at the same time, the invention also relates to a preparation method of the coating. Background technique [0002] Fire retardant coatings for steel structures can be divided into non-intumescent and intumescent. Intumescent fire retardant coating has the advantages of high expansion ratio, good flame retardant and heat insulation performance, and low cost. At present, it has been widely used in the construction industry, petroleum storage tanks, chemical pipelines and other industries. At high temperature, the intumescent fire retardant coating forms a loose and porous expanded carbon layer on the surface of the steel structure. The carbon layer has low thermal conductivity and can effectively prevent oxygen from diffusing to the surface of the substrate, thereby improving the fire resistance limit and having a flame retardant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/18C09D7/61
CPCC08K2003/2227C08K2003/2241C08K2003/323C08L2201/02C08L2201/22C08L2205/025C08L2205/03C09D5/185C09D163/00C09D7/61C09D7/70C08L63/00C08K13/06C08K3/2279C08K3/22C08K7/24C08K9/10C08K3/32C08K5/06C08K5/34922C08K7/04
Inventor 王艳田鹏辉刘占京
Owner 石家庄市油漆厂
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