Fireproof door core material and preparation method thereof

A fire door and core material technology, applied in the field of flame retardant materials, can solve the problems of high energy consumption, environmental pollution, high price, complex process, etc., and achieve the effects of good flame retardant effect, easy large-scale production and simple preparation process.

Pending Publication Date: 2018-12-11
江苏凯尔消防工程设备有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The fire door core board is the material filled in the fire door. As the core material of the steel fire door, one is aluminum silicate cotton board. The production process requires high temperature sintering to make cotton, which has the defects of high energy consumption and environmental pollution. , especially its board is formed by the added organic binder, not only is not waterproof, its binder produces a lot of harmful smoke in case of fire, it has been banned; the other is perlite board, although it has non-combustible, light weight, sound insulation , heat insulation and other advantages, but expanded perlite is a substance with a small density and is easy to generate dust during the production process. Severe dust pollution will ca

Method used

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  • Fireproof door core material and preparation method thereof

Examples

Experimental program
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Example Embodiment

[0023] Example 1

[0024] The preparation method of the intumescent flame retardant material containing silicon, nitrogen and phosphorus includes the following steps:

[0025] (1) Under the protection of inert gas and at room temperature, the solvent of the reaction is dichloromethane, and chlorosilane and dimethyl phosphonate are reacted for 3 hours to obtain dimethyl alkylsilylphosphonate; the chlorosilane is Trimethylchlorosilane; the molar ratio of the chlorosilane to the dimethyl phosphonate is 1:3.5;

[0026] (2) Under the protection of inert gas at 370°C, react the dimethyl alkylsilylphosphonate obtained in step (1) with melamine under the action of anhydrous magnesium chloride for 4 hours, and then cool to 300°C; the result of step (1) The molar ratio of dimethyl alkylsilylphosphonate to melamine is 1:1.1;

[0027] Sampling, washing, drying and crushing, the product has a degree of polymerization of 750, and the decomposition temperature of 1% thermal weight loss is 247.6°C. ...

Example Embodiment

[0030] Example 2

[0031] The preparation method of the intumescent flame retardant material containing silicon, nitrogen and phosphorus includes the following steps:

[0032] (1) Under the protection of inert gas and at room temperature, the solvent of the reaction is dichloromethane, and chlorosilane and dimethyl phosphonate are reacted for 3 hours to obtain dimethyl alkylsilylphosphonate; the chlorosilane is Triethylchlorosilane; the molar ratio of the chlorosilane to the dimethyl phosphonate is 1:3;

[0033] (2) Under the protection of inert gas at 350°C, react the dimethyl alkylsilylphosphonate obtained in step (1) with melamine under the action of anhydrous magnesium chloride for 4 hours, and then cool to 300°C; the result of step (1) The molar ratio of dimethyl alkylsilylphosphonate to melamine is 1:1.1.

[0034] Sampling, washing, drying and crushing, the product has a degree of polymerization of 990, and the decomposition temperature of 1% thermal weight loss is 235.7°C.

[0...

Example Embodiment

[0037] Example 3

[0038] The preparation method of the intumescent flame retardant material containing silicon, nitrogen and phosphorus includes the following steps:

[0039] (1) Under the protection of inert gas and room temperature, the reaction solvent is chloroform, and chlorosilane and dimethyl phosphonate are reacted for 2 hours to obtain dimethyl alkylsilylphosphonate; the chlorosilane is tripropylene Chlorosilane; the molar ratio of the chlorosilane to the dimethyl phosphonate is 1:4;

[0040] (2) Under the protection of inert gas at 350°C, react the dimethyl alkylsilylphosphonate obtained in step (1) with melamine under the action of triphenyl phosphate for 3h, and then cool to 300°C; step (1) The molar ratio of the resultant dimethyl alkylsilylphosphonate to melamine was 1:1.1.

[0041] Sampling, washing, drying and crushing, the product has a polymerization degree of 800, and a decomposition temperature of 1% thermal weight loss is 237.6°C.

[0042] (3) Cooling down to 250...

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Abstract

The invention provides a fireproof door core material. The fireproof door core material is at least prepared from the following components: 10 to 15 parts of light calcined magnesium powder, 10 to 15parts of aluminum hydroxide, 10 to 20 parts of fireproof ceramic, 30 to 50 parts of an expansion type flame-retarding material containing silicon nitrogen phosphorus, 10 to 15 parts of attapulgite, 3to 8 parts of tricresyl phosphate, 5 to 10 parts of carboxymethyl cellulose, 1 to 2 parts of a dispersant, 1.5 to 2 parts of a de-foaming agent, 30 to 50 parts of solvent oil and 5 to 15 parts of dimethicone. The invention further provides a preparation method of the fireproof door core material. The fireproof door core material has the advantages of simple preparation technology, can be easily produced in a large scale and has a good flame-retarding effect.

Description

technical field [0001] The invention belongs to the field of flame retardant materials, and in particular relates to a fire door core material and a preparation method thereof. Background technique [0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with certain fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the function of ordinary doors, fire doors also have the function of preventing the spread of fire and smoke. It can prevent the spread of fire within a certain period of time and ensure the evacuation of people. [0003] The fire door core board is the material filled in the fire door. As the core material of the steel fire door, one is aluminum silicate cotton board. The production process requires high temperature sintering to make cotton, which has the defects of high ene...

Claims

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Application Information

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IPC IPC(8): C08L85/02C08L1/28C08K3/22C08K3/34C08K5/523C08K3/00
CPCC08L85/02C08L2201/02C08K2003/2227C08K2003/222C08L1/286C08K3/22C08K3/346C08K5/523C08K3/00
Inventor 朱善义张庆雳邱小庆
Owner 江苏凯尔消防工程设备有限公司
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