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Water-based ultrathin steel structure fire-resistant coating based on aluminum phosphinate and preparation method and application thereof

A technology of diethylphosphinic acid and fire retardant coating, applied in the direction of fire retardant coating, coating, etc., can solve the problems of poor weather resistance and poor durability, and achieve the improvement of durability and weather resistance, excellent fire resistance performance and good quality Effect

Inactive Publication Date: 2018-09-18
SOUTH CHINA UNIV OF TECH
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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 and its preparation method and application in view of the many shortcomings of the existing water-based steel structure fire-proof coating such as poor durability and poor weather resistance.

Method used

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  • Water-based ultrathin steel structure fire-resistant coating based on aluminum phosphinate and preparation method and application thereof
  • Water-based ultrathin steel structure fire-resistant coating based on aluminum phosphinate and preparation method and application thereof
  • Water-based ultrathin steel structure fire-resistant coating based on aluminum phosphinate and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Based on the water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, its composition and weight percentage are as follows:

[0020] ① Flame retardant system 55 parts

[0021] in:

[0022] ②Film-forming system 40 parts

[0023] in:

[0024] ③Flame retardant synergistic system 5 parts

[0025] Titanium dioxide 5 parts

[0026] ④ 60 parts of water

[0027] First, 55 parts by weight of the flame retardant system and 5 parts by weight of the flame retardant synergistic system are ground uniformly in a ball mill and passed through a 150-mesh sieve, and then added to 40 parts by weight of the film-forming system and 60 parts by weight of water. After high-speed stirring and dispersing evenly, the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 50% is obtained.

[0028] According to GB14907‐2002 "Steel Structure Fireproof Coating Performance ...

Embodiment 2

[0030] Based on the water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, its composition and weight percentage are as follows:

[0031] ① Flame retardant system 45 parts

[0032]

[0033] ②Film-forming system 45 parts

[0034]

[0035] ③Flame retardant synergistic system 10 parts

[0036] Of which: Halloysite 7 parts

[0037] 3 parts titanium dioxide

[0038] ④30 parts of water

[0039] First, grind 45 parts by weight of the flame retardant system and 10 parts by weight of the flame retardant synergistic system in a ball mill to pass through a 150-mesh sieve, then add them to 45 parts by weight of the film-forming system, and add 30 parts by weight of water. After high-speed stirring and dispersing evenly, the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 60% is obtained.

[0040] According to GB14907‐2002 "Steel Structure Fireproof Co...

Embodiment 3

[0042] Based on the water-based ultra-thin fireproof coating for steel structures based on aluminum diethylphosphinate, its composition and weight percentage are as follows:

[0043] ① Flame retardant system 35 parts

[0044]

[0045] ②Film-forming system 50 parts

[0046]

[0047]

[0048] ③Flame retardant synergistic system 15 parts

[0049] Of which: silicon dioxide 3 parts

[0050] 3 parts titanium dioxide

[0051] Kaolin 9 parts

[0052] ④ 8 parts of water

[0053] First, grind 35 parts by weight of the flame retardant system and 15 parts by weight of the flame retardant synergistic system in a ball mill to pass through a 150-mesh sieve, then add them to 50 parts by weight of the film-forming system, and add 8 parts by weight of water. After high-speed stirring and dispersing evenly, the water-based steel structure fireproof coating based on aluminum diethylphosphinate of the present invention with a solid content of 70% can be obtained.

[0054] According ...

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Abstract

The invention relates to water-based ultrathin steel structure fire-resistant coating based on aluminum phosphinate and a preparation method and application thereof. The fire-resistant coating is prepared from 35-55 parts by weight of a flame-retardant system, 40-50 parts by weight of a film-forming system, 5-15 parts by weight of a flame-retardant synergetic system and a suitable amount of water.The water-based ultrathin steel structure fire-resistant coating based on the aluminum phosphinate is capable of creatively using the aluminum phosphinate as an important component in an ammonium polyphosphate expansive-type flame-retardant system, a combustion charcoal layer of the water-based ultrathin steel structure fire-resistant coating based on the aluminum phosphinate is better in quality, the fire resistance is excellent, the durability and weather ability are greatly improved, and the water-based ultrathin steel structure fire-resistant coating based on the aluminum phosphinate is very low in VOC content. In production and coating processes and a using process, a person cannot be injured basically, and the environment cannot be polluted.

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 and its preparation method and application. Background technique [0002] Compared with the traditional wood structure, masonry structure and reinforced concrete structure, the steel structure has the advantages of high mechanical strength, strong bearing capacity, light weight, convenient installation, short construction period, and excellent seismic performance. It plays a unique role in construction engineering. and increasingly important role. Because steel itself does not burn, people have not paid enough attention to the fire and heat insulation of steel structures. In fact, the mechanical strength of steel decreases rapidly with the increase of temperature. When it reaches the critical temperature of construction steel at 540°C, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/18C09D125/14C09D133/04C09D123/08C09D7/61C09D7/63
CPCC08K2003/2241C08K2003/323C08L2201/02C09D5/18C09D123/0853C09D125/14C09D133/04C09D7/61C09D7/63C08L1/284C08K13/02C08K3/32C08K5/5313C08K5/053C08K5/34922C08K3/22C08L3/04C08K3/34C08L39/06C08K3/36C08K3/346
Inventor 刘芳何经纬董淑娟
Owner SOUTH CHINA UNIV OF TECH
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