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A water-based ultra-thin intumescent fireproof coating for steel structures 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 uneven foaming of carbonization layer, poor adhesion of steel substrate, smoke safety problems, etc., and achieve comprehensive performance Improvement, reduction of methanol, and improvement of fire performance

Active Publication Date: 2016-06-22
沈阳泰丰化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, most water-based steel structure fireproof coatings have many shortcomings, such as non-uniform foaming of the carbonized layer formed during combustion, poor strength, and adhesion to the steel substrate. Poor focus, there are smoke safety problems, poor weather resistance and other shortcomings

Method used

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  • A water-based ultra-thin intumescent fireproof coating for steel structures and preparation method thereof
  • A water-based ultra-thin intumescent fireproof coating for steel structures and preparation method thereof
  • A water-based ultra-thin intumescent fireproof coating for steel structures and preparation method thereof

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Embodiment Construction

[0034] Prepare steel structure fireproof coating of the present invention according to the composition and mass percentage listed below:

[0035]

[0036]

[0037] The preparation process of the fireproof coating of the present invention is as follows: Weigh the required amount of each component, add water, some additives, ammonium polyphosphate, melamine, pentaerythritol, modified aluminum hydroxide, modified zinc oxide, Zinc borate, titanium dioxide, wollastonite powder and expanded vermiculite are stirred at a speed of 1000r / min for 30 minutes, then transferred to a ball mill for grinding until the specified fineness is reached, and then transferred to a reaction kettle to adjust the speed to 500r / min, add silicone acrylic emulsion, then add modified water-based epoxy emulsion, curing agent and remaining additives, stir for 1.5h, fully stir and adjust to a suitable viscosity range, and finally obtain the present invention through filtration fire retardant coating.

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Abstract

The invention discloses a water-based ultra-thin intumescent fireproof coating for steel structures and a preparation method thereof, belonging to the technical field of fireproof coatings. The composition and mass percent of the fireproof coating are: modified water-based epoxy emulsion: 10 ～ 35 ;Hardener: 1 ～ 8 ;Styrene acrylic emulsion or silicone acrylic emulsion: 5 ～ 15 ; Ammonium polyphosphate: 10 ～ 20 ;Melamine: 6 ～ 12 ; Pentaerythritol: 8 ～ 16 ; Flame retardant: 5 ～ 15 ; Color, filler: 5 ～ 15 ;Auxiliary: 2 ～ 8 ;water: 15 ～ 35 . The invention has the characteristics of low raw material cost, simple preparation process, environmental protection and the like.

Description

Technical field: [0001] The invention belongs to the technical field of fireproof coatings, in particular to a water-based ultra-thin intumescent fireproof coating for steel structures and a preparation method thereof. Background technique: [0002] As a type of building, steel structure is widely used for its advantages of light weight, high strength, good plasticity, and short construction period, especially in long-span structures and high-rise buildings. However, steel structures have poor fire resistance. When the temperature reaches 600°C, the steel structure will lose almost all its strength. Once a fire occurs, the steel structure will lose its bearing capacity, which will seriously endanger people's lives and property safety. Therefore, it is necessary to protect the steel structure from fire. The method widely used at present is to coat the surface of the steel structure with a steel structure fireproof coating. [0003] Fire retardant coatings for steel structure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D125/14C09D133/04C09D7/12C09D5/18C09C3/12
Inventor 张千峰叶云飞张振海马骏
Owner 沈阳泰丰化工有限公司
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