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EPS flame-retardant thermal-insulation wall board

A flame retardant thermal insulation, wall panel technology, applied in building components, fire prevention, etc., can solve the problems of general energy saving effect, easy to reverse halogen and reverse alkali deformation, etc., achieve excellent flame retardant performance, improve flame retardant, reduce contact. effect of chance

Inactive Publication Date: 2021-01-26
重庆君秀科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It claims to have excellent flame retardant properties, and its combustion grade reaches Class A, but it is easy to deform against halogen and anti-alkali, and there are many defects. Although it can play a role in fire prevention, the energy-saving effect is average

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021]To prepare an EPS flame-retardant thermal insulation wall board, proceed as follows:

[0022](1) Take 50kg of polystyrene, 6kg of graphene powder, and 4kg of magnesium sulfate solution for blending, stir evenly, and then extrude and granulate to obtain 60kg of graphene EPS masterbatch.

[0023](2) Take 60kg of 37% formaldehyde aqueous solution and 30kg of melamine into the reaction kettle, stir and react at 70°C for 15 minutes, and then cool to obtain 80kg of melamine formaldehyde resin.

[0024](3) Take 60kg of graphene EPS masterbatch, 80kg of melamine formaldehyde resin, 15kg of pullulan, 3kg of barium stearate, 3kg of magnesium oxide, 3kg of talc and 3kg of antioxidant for blending, stir and mix, and then pour into the wall In the body panel mold, the EPS flame-retardant thermal insulation wall panel is obtained after hot pressing and mold removal.

Embodiment 2

[0026]To prepare an EPS flame-retardant thermal insulation wall board, proceed as follows:

[0027](1) Take 50 kg of polystyrene, 7 kg of graphene powder, and 4.5 kg of magnesium sulfate solution for blending, stir evenly, and then extrude and granulate to obtain 61.5 kg of graphene EPS masterbatch.

[0028](2) Take 65kg of 37% formaldehyde aqueous solution and 32.5kg of melamine into the reactor, stir and react at 75°C for 18 minutes, then cool to obtain 91kg of melamine formaldehyde resin.

[0029](3) Take 61.5kg of graphene EPS masterbatch, 91kg of melamine formaldehyde resin, 16.5kg of pullulan, 3.5kg of barium stearate, 3.5kg of magnesium oxide, 3.5kg of talc and 3.5kg of antioxidant for blending, stirring and mixing Then, it is injected into the wall panel mold, formed by hot pressing, and the mold is removed to obtain the EPS flame-retardant thermal insulation wall panel.

Embodiment 3

[0031]To prepare an EPS flame-retardant thermal insulation wall board, proceed as follows:

[0032](1) Take 50kg of polystyrene, 8kg of graphene powder, and 5kg of magnesium sulfate solution for blending, stir evenly, and then extrude and granulate to obtain 63kg of graphene EPS masterbatch.

[0033](2) Take 70kg of 37% formaldehyde aqueous solution and 35kg of melamine into the reaction kettle, stir and react at 80°C for 22 minutes, and then cool to obtain 98kg of melamine formaldehyde resin.

[0034]⑶ Take 63kg of graphene EPS masterbatch, 98kg of melamine formaldehyde resin, 17.5kg of pullulan, 4kg of barium stearate, 4kg of magnesium oxide, 4kg of talc and 4kg of antioxidants for blending, stir and mix, and then inject into In the wall panel mold, the EPS flame-retardant thermal insulation wall panel is obtained after hot pressing and mold removal.

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Abstract

An EPS flame-retardant thermal-insulation wall board belongs to the technical field of building materials and is prepared from polystyrene, melamine, formaldehyde aqueous solution, graphene powder, pullulan, magnesium sulfate solution, barium stearate, magnesium oxide, talcum powder, antioxidant and the like. The preparation method comprises the following steps: firstly, blending polystyrene, graphene powder and a magnesium sulfate solution, uniformly stirring, extruding and granulating to obtain graphene EPS master batch; mixing, heating and stirring a formaldehyde aqueous solution and melamine for reaction, and cooling to obtain melamine formaldehyde resin; then blending the graphene EPS master batch, melamine formaldehyde resin, pullulan, barium stearate, magnesium oxide, talcum powderand an antioxidant, uniformly stirring and mixing, and carrying out injection molding and hot press molding to obtain the EPS flame-retardant thermal-insulation wall board. The EPS wall board has thebeneficial effects that the excellent flame retardant property of the melamine formaldehyde resin and the high oxygen barrier property of the pullulan are utilized to synergistically improve the flameretardant property of the EPS wall board.

Description

Technical field[0001]The invention relates to the technical field of building materials, in particular to an EPS flame-retardant thermal insulation wall board.Background technique[0002]At present, the organic thermal insulation materials used for external thermal insulation of buildings mainly include molded polystyrene foam board EPS, extruded polystyrene foam board XPS, and phenolic foam board PF. Among them, polystyrene foam is the most widely used in the external insulation system of building exterior walls. EPS insulation board is made of brand new PS material as the main raw material. It uses a steam boiler to put the raw materials into a molded box after pre-heating and curing. Foam molding, then drying and cutting processes can be made into foam products of different shapes and densities.[0003]But EPS is a flammable material, and its combustion performance can only reach B2 level. Many building fires are caused by the use of flammable external thermal insulation polymer mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L5/00C08K13/02C08K5/3492C08K3/04C08K3/30C08K5/098C08K3/22C08K3/34E04B1/94
CPCC08K2003/222C08K2003/3063C08L25/06C08L2201/02E04B1/94C08L5/00C08K13/02C08K5/34922C08K3/042C08K3/30C08K5/098C08K3/22C08K3/34
Inventor 李成瑶彭君秀喻川
Owner 重庆君秀科技有限公司
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