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High-flame-retardance temperature preservation plate and preparation method thereof

A technology of high flame-retardant and thermal insulation boards, which is applied in thermal insulation and building components, etc., can solve the problems of restricting the development of rigid polyurethane foam insulation boards and the high price of polyurethane foam materials, and achieve easy mass production in workshops, good mechanical properties, Effect of improving flame resistance

Active Publication Date: 2013-10-09
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And compared with the common inorganic insulation materials on the market, the raw material price of polyurethane foam is relatively expensive.
It is these two deficiencies that limit the development of rigid polyurethane foam insulation boards.

Method used

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  • High-flame-retardance temperature preservation plate and preparation method thereof
  • High-flame-retardance temperature preservation plate and preparation method thereof
  • High-flame-retardance temperature preservation plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 (comparative example)

[0024] According to the following formula, mix N303 polyether polyol (hydroxyl value 475±25mgKOH / g), ethylene glycol, triethanolamine, dibutyltin dilaurate, and methyl silicone oil, stir and mix well, and then add TDI , stir evenly, add water and mix evenly, then immediately pour into the mold, let it stand for 30min, put it in an oven at 120°C for 4h, and demould, and the polyurethane insulation board is obtained.

[0025]

[0026] A dense crust layer is formed on the surface of the obtained product, and the measured oxygen index is 18, the thermal conductivity is 0.021W / m K, the compressive modulus of the product is 25.884MPa, the dimensional change rate is 0.3%, and the closed cell rate is 90.4%. , The water absorption rate is 1.2%.

Embodiment 2

[0028] According to the following formula, N303 type polyether polyol (475±25mgKOH / g), ethylene glycol, closed-cell perlite particles with a particle size of 0.15mm, triethanolamine, dibutyltin dilaurate, methyl silicone oil, TCPP and hydroxide Mix the components of magnesium, fully stir and mix, then add MDI, stir evenly, add water and mix evenly, then immediately pour into the mold, let it stand for 30min, put it in an oven at 120°C for 4h, and demould, that is, the high-quality magnesium alloy is obtained. Flame retardant perlite filled polyurethane insulation board.

[0029]

[0030]

[0031] A dense crust layer is formed on the surface of the obtained product, and the measured oxygen index is 28.2, the thermal conductivity is 0.023W / m·K, the compressive modulus of the product is 24.975MPa, the dimensional change rate is 0.9%, and the closed cell rate is 89.76%. , The water absorption rate is 3.5%.

Embodiment 3

[0033] According to the following formula, N303 type polyether polyol (475±25mgKOH / g), ethylene glycol, expanded perlite particles with a particle size of 0.15mm, triethanolamine, dibutyltin dilaurate, methyl silicone oil, DMMP and magnesium hydroxide Mix the components, stir and mix them well, then add PAPI, mix them evenly, add water and mix them evenly, then pour them into the mold immediately, let it stand for 30 minutes, put it in an oven at 120°C for 4 hours, and demould, and you will get a high resistance Combustible perlite-filled polyurethane insulation panels.

[0034]

[0035] A dense crust layer is formed on the surface of the obtained product, and the measured oxygen index is 30.2, the thermal conductivity is 0.027W / m K, the compression modulus of the product is 26.742MPa, the dimensional change rate is 0.9%, and the closed cell rate is 90.21%. , The water absorption rate is 3.9%.

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Abstract

The invention belongs to the technical field of high polymer materials, and in particular discloses a high-flame-retardance temperature preservation plate and a preparation method thereof. The method is used for producing high-flame-retardance construction temperature preservation plates by utilizing pearlite for filling rigid polyurethane foam materials. The raw materials of the product provided by the invention mainly comprise composite polyether polyalcohol, polyisocyanates, pearlite, flame retardant, hydramine, organic tin, water, silicone oil and the like. The prepared product has better mechanical property, is much easier for batch production in a plant, and also has a compact crust layer. The compact curst layer of polyurethane can remedy the defect of easiness in water absorption of the pearlite well, and meanwhile, the polyurethane plate material with high flame retardance can even be adaptive to the requirement of flame retardance level of the existing organic temperature preservation material.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high flame-retardant thermal insulation board and a preparation method thereof, which is a method for producing a high flame-retardant building thermal insulation board by filling perlite with a rigid polyurethane foam material. Background technique [0002] Due to the continuous acceleration of urbanization and industrialization in our country, the pressure on resources, energy, health, environmental protection and other aspects is increasing. Building energy conservation is being vigorously promoted in the construction field of our country. According to estimates by relevant departments, the construction area of ​​new urban and rural housing in my country is nearly 2 billion square meters each year, of which more than 80% are high-energy buildings; the existing buildings are nearly 40 billion square meters, and more than 95% are high-energy buildings. At present, my...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/73C08G18/75C08G18/08C08K3/34E04B1/80
Inventor 张爱清张志敏刘书正
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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