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Preparation of fireproofing foamed material

A foam material and mixture technology, applied in the direction of fire prevention, dust prevention, mining equipment, etc., can solve the problem of high construction requirements, and achieve the effects of low temperature requirements, low smoke density, and high oxygen index

Inactive Publication Date: 2011-05-18
滕州市华海新型保温材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex environment of the mine site and high construction requirements, traditional phenolic resin foaming cannot meet the construction conditions, so phenolic foam is rarely used in mine safety.

Method used

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  • Preparation of fireproofing foamed material
  • Preparation of fireproofing foamed material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] As shown in Figure 1, a kind of preparation method of fireproof foam material, its technological process is as follows:

[0021] 1. Mix resole phenolic resin, urea, melamine, fireproof polyether, and methanol to form the first mixture; the proportion of the first mixture is as follows in parts by weight: 100 parts of resole phenolic resin, 10 parts of urea, and 3 parts of melamine , 5 parts of fireproof polyether, 50 parts of methanol;

[0022] 2. Add alkali to the first mixture to form the second mixture; adjust the pH value of the second mixture to 8-9; then heat to make the reaction temperature between 60-90°C and react for 1-3 hours , stop heating;

[0023] 3. Neutralize the heated second mixture with acid so that its pH value reaches 6 to 7 to form a third mixture; then carry out vacuum demethanolization to the third mixture; then, at a temperature of 25°C Adjust the viscosity of the third mixture after demethanolization, so that the viscosity is 1000-3000mpa.s t...

example 2

[0033] As shown in Figure 1, a kind of preparation method of fireproof foam material, its technological process is as follows:

[0034] 1. Mix resole phenolic resin, urea, melamine, fireproof polyether, and methanol to form the first mixture; the proportion of the first mixture is as follows in parts by weight: 100 parts of resole phenolic resin, 15 parts of urea, and 5 parts of melamine , 7 parts of fireproof polyether, 65 parts of methanol;

[0035] 2. Add alkali to the first mixture to form the second mixture; adjust the pH value of the second mixture to 8-9; then heat to make the reaction temperature between 60-90°C and react for 1-3 hours , stop heating;

[0036] 3. Neutralize the heated second mixture with acid so that its pH value reaches 6 to 7 to form a third mixture; then carry out vacuum demethanolization to the third mixture; then, at a temperature of 25°C Adjust the viscosity of the third mixture after demethanolization, so that the viscosity is 1000-3000mpa.s t...

example 3

[0046] As shown in Figure 1, a kind of preparation method of fireproof foam material, its technological process is as follows:

[0047] 1. Mix resole phenolic resin, urea, melamine, fireproof polyether, and methanol to form the first mixture; the proportion of the first mixture is as follows in parts by weight: 100 parts of resole phenolic resin, 20 parts of urea, and 8 parts of melamine , 10 parts of fireproof polyether, 80 parts of methanol;

[0048] 2. Add alkali to the first mixture to form the second mixture; adjust the pH value of the second mixture to 8-9; then heat to make the reaction temperature between 60-90°C and react for 1-3 hours , stop heating;

[0049]3. Neutralize the heated second mixture with acid so that its pH value reaches 6 to 7 to form a third mixture; then carry out vacuum demethanolization to the third mixture; then, at a temperature of 25°C Adjust the viscosity of the third mixture after demethanolization, so that the viscosity is 1000-3000mpa.s t...

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Abstract

The invention relates to a preparation method having ideal effects for a fireproof foam material for preventing spontaneous fire in a coal mine . The preparation method comprises the following technological processes: 1, mixing resol, urea, melamine, fireproof polyether and methanol to form a first mixture; 2, adding alkali in the first mixture to form a second mixture; 3, adding acid in the second mixture after heating for neutralization and then carrying out vacuum separation of methanol for a third mixture so as to form modified phenolic resin; 4, mixing modified phenolic resin, foaming agent, fire retardant, emulsifying agent and auxiliary agent to form foaming modified phenolic resin; and 5, mixing the foaming modified phenolic resin with an organic acid catalytic system.

Description

technical field [0001] The invention relates to a preparation method of a fireproof foam material, in particular to a preparation method of a novel fireproof foam material used for preventing spontaneous combustion in coal mines. Background technique [0002] Spontaneous combustion of coal seams in mines theoretically means that the coal seams with a tendency to spontaneous combustion are oxidized to spontaneous combustion after being crushed in contact with air. One of the main reasons is caused by air leakage in gobs or roadways. Therefore, as long as the fireproof performance of the polymer with fireproof effect meets the coal industry standard of the People's Republic of China MT113-1995 "General Experimental Methods and Judgment Specifications for the Flame Retardancy and Antistatic Properties of Polymer Products Used in Underground Coal Mine", the underground goaf can be successfully removed. Sealing air leakage points such as roadways, water-containing coal leaks, et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/14C08L61/34C08K3/22C08K5/521C08G14/12E21F5/08
Inventor 钟东南孙助海张经泽孙志武马敏敏
Owner 滕州市华海新型保温材料有限公司
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