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Water-based expandable fireproof steel structure coating and preparation method

A technology for fire-resistant coatings and section steel, applied in fire-resistant coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor water resistance, poor high temperature resistance, poor aging resistance, etc., achieve strong weather resistance, improve dispersion performance, and improve physical and chemical properties performance effect

Active Publication Date: 2013-04-17
ZHONGYING CHANGJIANG INTERNATIONAL NEW ENERGY INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To overcome the shortcomings of traditional organic intumescent fireproof coatings such as poor high temperature resistance, poor aging resistance and poor water resistance

Method used

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  • Water-based expandable fireproof steel structure coating and preparation method
  • Water-based expandable fireproof steel structure coating and preparation method
  • Water-based expandable fireproof steel structure coating and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Please refer to the fire retardant coating formulations of the present invention listed in Table 1 and Table 2.

[0035] (1) Preparation of nano flame retardant:

[0036] Each flame retardant raw material, water glass and tensio-active agent are joined in the water that is 5 times of flame retardant raw material weight and are heated to 85 o After C, adjust the pH value to 6.5 with dilute sulfuric acid, cool, filter and wash the reaction product after reacting for two hours, and obtain the nano flame retardant after drying.

[0037] (2) Preparation of fire retardant coating:

[0038] First add water-based epoxy emulsion, water-based epoxy curing agent and self-crosslinking silicone acrylic emulsion into the mixing tank, after stirring evenly, add nano flame retardant, flame retardant synergist, filler, auxiliary agent and appropriate amount of water, stir for 30 Add it to the ball mill and grind once after mixing evenly. After uniform mixing, use a scraper fineness me...

Embodiment 2

[0041]Please refer to the fire retardant coating formulations of the present invention listed in Table 1 and Table 2.

[0042] (1) Preparation of nano flame retardant:

[0043] Each flame retardant raw material, water glass and tensio-active agent are joined in the water that is 4 times of flame retardant raw material weight and are heated to 90 o After C, adjust the pH value to 7.0 with dilute hydrochloric acid, cool, filter and wash the reaction product after reacting for two hours, and obtain the nano flame retardant after drying.

[0044] (2) Preparation of fire retardant coating:

[0045] First add water-based epoxy emulsion, water-based epoxy curing agent and self-crosslinking silicone acrylic emulsion into the mixing tank, after stirring evenly, add nano flame retardant, flame retardant synergist, filler, auxiliary agent and appropriate amount of water, and stir for 15 minutes Then add it to the ball mill for grinding once, after uniform mixing, use a scraper fineness...

Embodiment 3

[0048] Please refer to the fire retardant coating formulations of the present invention listed in Table 1 and Table 2.

[0049] (1) Preparation of nano flame retardant:

[0050] Each flame retardant raw material, water glass and tensio-active agent are joined in the water that is 3 times of flame retardant raw material weight and are heated to 50 o After C, adjust the pH value to 7.5 with dilute sulfuric acid, cool, filter and wash the reaction product after reacting for two hours, and obtain the nano flame retardant after drying.

[0051] (2) Preparation of fire retardant coating:

[0052] First add water-based epoxy emulsion, water-based epoxy curing agent and self-crosslinking silicone acrylic emulsion into the mixing tank, after stirring evenly, add nano flame retardant, flame retardant synergist, filler, auxiliary agent and appropriate amount of water, and stir for 20 minutes Then add it to the ball mill for grinding once, after uniform mixing, use a scraper fineness me...

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Abstract

The invention relates to a water-based expandable fireproof steel structure coating and a preparation method thereof. The water-based expandable fireproof steel structure coating comprises the following components in mass percentage: 20-45% of coating matrix, 25-45% of nano-flame retardant, 0.1-10% of flame-retardant synergist, 1-10% of filler, 0.2-5% of auxiliary agent and 5-30% of water. The preparation method of the water-based expandable fireproof steel structure coating comprises the following steps: firstly, preparing the nano-flame retardant; secondly, adding a water-based epoxy emulsion, a water-based epoxy curing agent and a self-crosslinking silicone acrylic emulsion in the coating matrix into a stirring barrel, and stirring uniformly; thirdly, adding the nano-flame retardant, the flame-retardant synergist, the filler, the auxiliary agent and water, stirring for 10-30 minutes, adding a mixture into a ball grinding mil, grinding, checking whether the fineness of the coating meets a requirement, and if so, stopping grinding; fourthly, filtering the mixture with a filter screen, and separating grinding balls from the coating; and finally, filling the coating into a specified jar, discharging and barreling. The water-based expandable fireproof steel structure coating has a high expansion rate, has the fire endurance as long as 120 minutes and the coating thickens of 2 mm; and the water-based expandable fireproof steel structure coating is simple in preparation method, disposes solid wastes in the field of biomass power generation, is low in cost and wide in application and has significant economic and social benefits.

Description

technical field [0001] The invention relates to the field of fireproof coatings, in particular to a water-based intumescent steel structure fireproof coating based on the comprehensive utilization of biomass power plant ash waste and a preparation method thereof. Background technique [0002] Most of the frames of modern high-rise and large buildings adopt steel structures. Although steel as a load-bearing component has the advantages of high strength, light weight, large load capacity, good seismic performance, easy construction, no pollution, and recyclable utilization, etc., its The thermal conductivity is large. Once a fire occurs, its temperature can rise to 700°C within 10-15 minutes, far exceeding its own critical temperature (540°C). % and the loss of bearing capacity will cause the building to collapse. At present, my country mostly uses fireproof coatings for steel structures to protect them. The fire-resistant paint is applied to the surface of steel components....

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D125/14C09D131/04C09D163/00C09D5/18
CPCC09D5/18C08L2312/00C09D125/14C09J133/02
Inventor 方章建郑兴才程宇婷卓之久
Owner ZHONGYING CHANGJIANG INTERNATIONAL NEW ENERGY INVESTMENT CO LTD
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