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A waterborne ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate/montmorillonite hybrid and its preparation method and application

A technology of diethylphosphinic acid and fire retardant coating, applied in fire retardant coating, coating and other directions, can solve problems such as poor weather resistance and poor durability

Active Publication Date: 2021-09-14
广州市新稀冶金化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water-based ultra-thin steel structure fire-proof coating based on aluminum diethylphosphinate / montmorillonite hybrid for the many deficiencies of existing water-based steel structure fireproof coatings such as poor durability and poor weather resistance. Its preparation method and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The water-based ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate / montmorillonite hybrid (montmorillonite content 11.5%), its composition and weight percentage are as follows:

[0033] Ammonium polyphosphate 20 parts

[0034] Aluminum diethylphosphinate / montmorillonite hybrid (montmorillonite content 11.5%) 6 parts

[0035] 15 parts melamine

[0036] Pentaerythritol 10 parts

[0037] Silicone acrylic emulsion (50%) 35 parts

[0038] 35 parts of water

[0039] Titanium dioxide 5 parts

[0040] Kaolin 5 parts

[0041] Sodium tripolyphosphate dispersant 1.5 parts

[0042] Sodium hexametaphosphate dispersant 1.5 parts

[0043] BYK 306 defoamer 0.1 parts

[0044] Triethylene glycol monobutyl ether film-forming aid 0.6 part

[0045] 0.4 parts of hydroxymethyl cellulose thickener

[0046] First, a flame retardant system consisting of 20 parts of ammonium polyphosphate, 6 parts of aluminum diethylphosphinate / montmorillonite hybrid (mont...

Embodiment 2

[0049] Water-based ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate / montmorillonite hybrid (montmorillonite content 35.5%), its composition and weight percentage are as follows:

[0050] Ammonium polyphosphate 7 parts

[0051] Aluminum diethylphosphinate / montmorillonite hybrid (montmorillonite content 35.5%) 22 parts

[0052] 12 parts melamine

[0053] Pentaerythritol 7 parts

[0054] Ethylene-vinyl acetate copolymer emulsion (50%) 38 parts

[0055] 56 parts of water

[0056] Titanium dioxide 2 parts

[0057] Silica 5 parts

[0058] 0.8 parts of SS-5040 dispersant

[0059] FS 1226 defoamer 3 parts

[0060] Ethylene glycol monomethyl ether coalescence aid 0.1 parts

[0061] 3 parts polyvinylpyrrolidone thickener

[0062] First, a flame retardant system consisting of 7 parts of ammonium polyphosphate, 22 parts of aluminum diethylphosphinate / montmorillonite hybrid (35.5% montmorillonite content), 12 parts of melamine and 7 parts of pentaery...

Embodiment 3

[0065] The water-based ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate / montmorillonite hybrid (montmorillonite content 25%), its composition and weight percentage are as follows:

[0066] Ammonium polyphosphate 15 parts

[0067] Aluminum diethylphosphinate / montmorillonite hybrid (montmorillonite content 25%) 14 parts

[0068] 10 parts melamine

[0069] Pentaerythritol 8 parts

[0070] Styrene-acrylic emulsion (50%) 45 parts

[0071] 9 parts water

[0072] 2 parts silicon dioxide

[0073] Kaolin 2 parts

[0074] TEGO Dispers 745w dispersant 0.1 parts

[0075] DC 163 defoamer 0.8 parts

[0076] 3 parts of ethoxyethyl acetate coalescent

[0077] Modified starch thickener 0.1 parts

[0078] First, a flame retardant system consisting of 15 parts of ammonium polyphosphate, 14 parts of aluminum diethylphosphinate / montmorillonite hybrid (25% montmorillonite content), 10 parts of melamine and 8 parts of pentaerythritol, and The flame retardan...

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Abstract

The invention discloses a water-based ultra-thin steel structure fireproof coating based on aluminum diethylphosphinate / montmorillonite hybrid, a preparation method and application thereof. The composition and weight percent of the fireproof coating are: ammonium polyphosphate, aluminum diethylphosphinate / montmorillonite hybrid, melamine, pentaerythritol, polymer emulsion, water, titanium dioxide, silicon dioxide, kaolin, dispersant , defoamer, coalescent and thickener. The present invention adopts the aluminum diethylphosphinate / montmorillonite hybrid as the important component in the ammonium polyphosphate intumescent flame retardant system, utilizes the P-C structure in the aluminum diethylphosphinate structure to have Superior high temperature oxidation resistance, excellent hydrolysis resistance, and high phosphorus content make it highly efficient flame retardant, and the aluminum cation in its structure has the function of inorganic flame retardant, showing good Smoke suppression effect.

Description

technical field [0001] The invention belongs to the technical field of fireproof coatings for steel structures, and in particular relates to a water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate / montmorillonite hybrid and its preparation method and application. Background technique [0002] Steel structures play a unique and increasingly important role in construction projects due to their high mechanical strength, strong bearing capacity, light weight, convenient installation, short construction period, and excellent seismic performance. However, the most significant deficiency of steel structure buildings is poor fire resistance, and the best way to improve the fire resistance and heat insulation performance of steel structures is to apply a protective layer of fireproof paint on its surface. [0003] Among all kinds of fireproof coatings for steel structures, solvent-based ultra-thin fireproof coatings for steel structures ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D123/08C09D125/14C09D5/18
CPCC09D5/18C09D123/0853C09D125/14C09D143/04C08K13/02C08K5/5313C08K3/346
Inventor 刘芳何经纬钟学群董淑娟
Owner 广州市新稀冶金化工有限公司
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