Flame-retarding polyurethane sealing material for coal mine

A polyurethane and mine technology, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of poor airtightness, high time and physical consumption, unsatisfactory flame retardant performance, etc., and achieve light weight, reduced construction period, and flame retardant effect obvious effect

Inactive Publication Date: 2018-03-20
NORTH CHINA INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, such as high time and physical consumption, poor airtightness, and unsatisfactory flame retardant performance, and propose a kind of flame retardant polyurethane airtight material for mines

Method used

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  • Flame-retarding polyurethane sealing material for coal mine
  • Flame-retarding polyurethane sealing material for coal mine
  • Flame-retarding polyurethane sealing material for coal mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Embodiments, sample the isocyanate, polyether polyol, simethicone, expandable graphite and sodium silicate in Examples 1 to 21 according to the weight parts of the corresponding raw materials in the following table, and propose according to the present invention respectively The preparation method of the polyurethane sealing material according to the present invention is to prepare the polyurethane sealing material, and the specific operations are as follows: Weigh the polyether polyol of the corresponding weight part and place it in the reaction bottle, and then add the corresponding weight parts of simethicone, expandable graphite, Sodium silicate and isocyanate are stirred evenly at a speed of 150-400r / min, the stirring time is controlled at 10-30min, and the polyurethane sealing material is obtained after standing still until complete foaming. Then the performance test of the prepared polyurethane sealing material was carried out.

[0022]

[0023]

[0024] 1....

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PUM

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Abstract

The invention discloses a flame-retarding polyurethane sealing material for a coal mine. The flame-retarding polyurethane sealing material is prepared from the following raw materials in parts by weight: 3 to 6 parts of isocynate, 13 to 17 parts of polyether polyol, 0 to 2 parts of dimethicone, 1 to 9 parts of expandable graphite and 1 to 9 pats of sodium silicate. The polyurethane sealing material provided by the invention has the advantages of light weight, fewer consumed manpower and material resources during use, and good sealing performance and flame-retarding performance; utilization indexes of the sealing material for the coal mine are realized; the added expandable graphite and borax have a synergetic flame-retarding effect, and the flame-retarding property of the flame-retarding polyurethane sealing material can be improved; the material is not easy to combust and reaches a difficult-to-combust degree; the strength and the elasticity of the material are improved to a certain extent, and the airtightness of a wall body of the coal mine is increased; the cost is reduced, and the construction period is shortened.

Description

technical field [0001] The invention relates to the technical field of materials for mine production, in particular to a flame-retardant polyurethane sealing material for mines. Background technique [0002] Mine production belongs to underground mining operations, which are generally harmed by external water, gas, coal dust and fire. Most of the dangerous accidents in the mining process are caused by gas explosions and fires in mines, which have brought huge harm to people. Property loss seriously endangers the precious lives of workers. The most important thing in dealing with accidents reasonably is to restore the ventilation system to get rid of the harmful gas in the underground. When a fire occurs, it is necessary to quickly isolate the burning material from the outside world. In many cases, it is necessary to use airtight materials to isolate harmful areas in order to create safe working conditions for workers. Usually people are used to using masonry, stone sand, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08L75/08C08L83/04C08K7/24C08K3/34C08J9/08C09K3/10C08G101/00
CPCC08G18/48C08K3/34C08K7/24C08L75/08C08L2201/02C08L2201/14C08L2203/14C09K3/10C08G2110/0083C08L83/04
Inventor 高明陈顺孙英娟
Owner NORTH CHINA INST OF SCI & TECH
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