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Production process of A2-grade fireproof insulation board

A fireproof insulation board and production process technology, applied in the direction of heat preservation, fire protection, building components, etc., can solve the problems of high thermal conductivity, low fire resistance temperature, and reduced heat preservation effect, and achieve wide process applicability, good flame retardant effect, and improved The effect of using performance

Inactive Publication Date: 2019-06-25
镇江兴谦新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its preparation method is to melt the preferred flame retardant with the insulation material, and then make it into granule foam molding, spray molding, foam molding, etc. In order to achieve the purpose of blending, the flame retardant needs to be carefully selected Matching, and subject to greater limitations, at the same time, flame retardant materials will affect the thermal conductivity of thermal insulation materials to a large extent, resulting in high thermal conductivity, reduced thermal insulation effect, low refractory temperature, poor flame retardant effect, and poor flame retardant effect It is best to only reach the B1 level in the national standard GB / T8624-2006 "Classification method for the combustion performance of building materials"
Failure to reach level A2:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Taking the formed EPS insulation board on the market as the substrate, first, according to the size of the required board, make a mold with a cavity of the corresponding size with stainless steel or hard plastic, and cut the formed EPS insulation board into a certain size of plates. Then put the cut EPS board into the mold, and evenly spread the aluminum hydroxide gel flame retardant twice its weight on the surface of the EPS insulation board. The aluminum hydroxide gel flame retardant is purchased on the market and is gel-like in itself, so it does not need to be re-modulated. Use a vacuum press with a vacuum pressure of 0--0.1Mpa to uniformly mix the aluminum hydroxide gel flame retardant Sucks into the insulation board and wraps it around the insulation board. After 12 hours of curing at room temperature, it is dried at 50-60 degrees Celsius. After drying, according to GB8624-2006 "Classification of Combustion Behavior of Building Materials and Products", the fire ...

Embodiment 2

[0034] The EPS insulation board that has been formed on the market is used as the substrate, and the EPS board is punched. The punching rate is 100 holes / square decimeter, the diameter of the punching drill is 3mm, and the punching depth is used to get through the board.

[0035] Mix talcum powder with tris (2-chloroethyl) phosphate, stir for 20 minutes to obtain a pasty flame retardant material, wherein the weight of talcum powder is 0.9 times the weight of the substrate, and the weight of tris (2-chloroethyl) phosphate is 1.8 times the weight of the substrate. Fill the prepared pasty flame retardant material into the drilled holes, because the flame retardant is paste, the flame retardant material will not be lost. After 12 hours of natural curing at room temperature, it is then dried in an environment of 50-60°C. Then according to GB8624-2006 "Classification of Combustion Behavior of Building Materials and Products", the fire protection level items are tested, and the requ...

Embodiment 3

[0045] Using the already formed XPS insulation board on the market as the substrate, the board is cut into the required size in advance according to the demand. Mix the magnesium hydroxide flame retardant with water and stir for 20 minutes to obtain a paste flame retardant material, wherein the amount of magnesium hydroxide is twice the weight of the substrate, and the amount of water is the same as the weight of the substrate.

[0046] Use a syringe to suck up the pasty magnesium hydroxide flame-retardant material and inject it into the XPS insulation board. The injection frequency is 100 eyes / square decimeter, and the needle diameter is 5mm. After injection, after 12 hours of natural curing at room temperature, dry in an environment of 50-60°C. Then according to GB 8624-2006 "Classification of Combustion Behavior of Building Materials and Products", carry out fire protection level item testing, meet the requirements, and pack them into storage.

[0047] This method has a sl...

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Abstract

The invention discloses a production process of an A2-grade fireproof thermal insulation board. The production process is characterized in that a formed insulation board is used as a substrate, and then a flame retardant material is uniformly sucked into or filled into or injected into the insulation board to obtain the A2-grade fireproof insulation board. According to the production process, an original non-flame-retardant insulation board is converted into an EPS board which can achieve the A2-grade fireproof effect. The using performance of the insulation board is improved to a great extent, and meanwhile, the problem of the presence of the non-flame-retardant insulation boards on the market is solved, so that the insulation board can be better applied to the building field. The production process has relatively wide process applicability and a good flame retardant effect and can meet the A2-grade fireproof grade requirements.

Description

technical field [0001] The invention belongs to a production process of an A2 grade fireproof heat preservation board and belongs to the field of building energy-saving materials. Background technique [0002] Building energy conservation is an important part of energy conservation. With the rapid development of my country's economy, the demand for thermal insulation materials is increasing, especially in the construction field. The demand is immeasurable. At the same time, the requirements for fire protection grades are also getting higher and higher. Non-combustible insulation boards can be applied to various important industries such as construction, petroleum, electric power, metallurgy, textiles, transportation, etc., but only in construction, according to the figures released by the National Bureau of Statistics, the annual investment in real estate development in my country reaches trillions, Non-combustible thermal insulation materials are one of the important buildi...

Claims

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Application Information

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IPC IPC(8): B29C71/00E04B1/80E04B1/94
Inventor 钟伟琴
Owner 镇江兴谦新材料技术有限公司
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