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Fire-resistant coating material for outdoor steel structures and preparation method for fire-resistant coating material

A fire-resistant coating and steel structure technology, applied in fire-resistant coatings, wax coatings, coatings, etc., can solve the problems of short fire protection time and low structural strength of the expansion layer, achieve long fire protection time, meet fire performance requirements, and expand the structure of the layer high intensity effect

Inactive Publication Date: 2016-08-24
许智静
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, ultra-thin (≤3mm) fire retardant coating is the most widely used fire retardant coating, but

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A fireproof coating for steel structures for outdoor use, the composition and content of the coating are:

[0013] Acrylic resin is 26wt%;

[0014] Chlorinated paraffin is 8wt%;

[0015] Amino resin is 7wt%;

[0016] Polyphosphate is 23.7wt%;

[0017] Pentaerythritol is 16.5wt%;

[0018] Melamine is 9.8wt%;

[0019] Graphite is 4wt%;

[0020] Organic pentonite is 5wt%.

[0021] The above-mentioned outdoor steel structure fireproof coating is prepared by the following methods and steps:

[0022] 1) Dissolution: Take the material according to the above composition and content range, add the raw material into the solvent, and use the dispersing head to shear, disperse and dissolve at a speed of 2500r / min;

[0023] 2) Stirring: gradually add charcoal forming agent, foaming agent and pigments and fillers to the above solution, and continue stirring for 10 minutes;

[0024] 3) Grinding: add glass beads to the solution, and grind the solution for 2 to 4 hours with a gr...

Embodiment 2

[0027] A fireproof coating for steel structures for outdoor use, the composition and content of the coating are:

[0028] Acrylic resin is 28wt%;

[0029] Chlorinated paraffin is 7wt%;

[0030] Amino resin is 6wt%;

[0031] Polyphosphate is 24.7wt%;

[0032] Pentaerythritol is 16.5wt%;

[0033] Melamine is 9.8wt%;

[0034] Graphite is 4wt%;

[0035] Organic pentonite is 4wt%.

Embodiment 3

[0037] A fireproof coating for steel structures for outdoor use, the composition and content of the coating are:

[0038] Acrylic resin is 29wt%;

[0039] Chlorinated paraffin is 8wt%;

[0040] Amino resin is 5wt%;

[0041] Polyphosphate is 23.7wt%;

[0042] Pentaerythritol is 17.5wt%;

[0043] Melamine is 8.8wt%;

[0044] Graphite is 5wt%;

[0045] Organic pentonite is 3wt%.

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PUM

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Abstract

The invention discloses a fire-resistant coating material for outdoor steel structures and a preparation method for the fire-resistant coating material and belongs to the technical field of fireproof coating materials. The coating material is prepared from the ingredients in percentage by weight: 25wt% to 31wt% of acrylic resin, 6wt% to 8wt% of chlorinated paraffin, 5wt% to 7wt% of amino resin, 22.7wt% to 26.7wt% of polyphosphate, 15.5wt% to 17.5wt% of pentaerythritol, 8.8wt% to 10.8wt% of melamine, 3wt% to 5wt% of graphite and 3wt% to 5wt% of organic bentonite. According to the fire-resistant coating material for the outdoor steel structures, prepared by the method, the fire-resistant time is longer, and the structural strength of an expansion layer is high, so that the fire-resistant coating material fully meets the requirements of the outdoor steel structures on fireproof performance.

Description

technical field [0001] The invention belongs to the technical field of fireproof coatings, in particular to a fireproof coating for steel structures used outdoors. Background technique [0002] In the prior art, steel has been widely used in construction as the main load-bearing component. Although steel has excellent physical and mechanical properties at room temperature, its fire resistance is far worse than that of masonry structures and reinforced concrete structures. When steel reaches a critical temperature of 540°C, it loses its bearing capacity. Usually, in a building fire, the temperature of the fire site can reach more than 700°C within 10 minutes. Under such a fire scene, it only takes a few minutes for the temperature of the exposed steel to reach a critical value, and the bearing capacity drops sharply, leading to the collapse of the building. Therefore, the importance of steel structure is very important. The fire protection methods of steel structures inclu...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D191/06C09D161/20C09D7/12C09D5/18
Inventor 许智静
Owner 许智静