Coal-mine gas drainage hole drilling/sealing material and preparation method thereof

A technology for extracting drilling and sealing materials, which can be used in drilling compositions, chemical instruments and methods, etc. The effect of good density, high compressive strength and convenient construction

Active Publication Date: 2013-08-28
SHAANXI COAL & CHEM TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a flame-retardant and anti-static polyurethane material in order to solve the problems of high volume expansion multiple, low compressive strength, poor material antistatic property and flame retardancy in the construction process of the existing coal mine gas drainage drilling and sealing polyurethane material. Drilling and sealing polyurethane material with strong adhesion, high compressive strength, low cost and convenient construction and preparation method thereof

Method used

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  • Coal-mine gas drainage hole drilling/sealing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1: Weigh 60 parts of polyether polyol A: polyoxypropylene triol NJ-303 (hydroxyl value 475 mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.), polyether polyol B: polyoxypropylene polyol Alcohol NJ-8211 (hydroxyl value 420mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.) 40 parts, polyether polyol C: polyoxypropylene polyol NJ-405A (hydroxyl value 475mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.) 5 parts, stir evenly in the mixing tank, then dibutyltin dilaurate (American Gas Company) 0.5 parts, triethylenediamine (American Gas Company) 1.8 parts, HCFC-245fa (American Honeywell Company) ) 5 parts, silicone oil DC-193 (American Air Company) 2.5 parts, antistatic agent JWK-1801 (Wuxi Juwang Plastic Materials Co., Ltd.) 2.5 parts, flame retardant ethyl diethyl phosphate 25 parts, add the above In the mixed solution, continue to stir evenly at high speed to obtain component A. Weigh 180 parts of polyphenylpolymethylene polyisocyanate (P...

Embodiment 2

[0063] Example 2: Weigh 90 parts of polyether polyol A: polyoxypropylene triol NJ-303 (hydroxyl value 475 mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.), polyether polyol B: polyoxypropylene polyol Alcohol NJ-8211 (hydroxyl value 430mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.) 20 parts, polyether polyol C: polyoxypropylene polyol NJ-405A (hydroxyl value 475mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.) 12 parts, stir in the mixing tank evenly, then add 0.5 parts of N, N-dimethylcyclohexylamine (Shanghai Yutian Chemical Co., Ltd.), 2 parts of triethylenediamine (American Gas Company), 3 parts of HCFC-141b (Zhejiang Hangzhou Fushite Chemical Co., Ltd.), 2 parts of silicone oil DC-193 (American Air Company), 2.7 parts of antistatic agent Anti-static Q617 (Dongguan Deshiken Shoe Material Co., Ltd.), Add 22 parts of flame retardant melamine polyphosphate into the above mixed solution, and continue stirring at high speed to obtain component A. ...

Embodiment 3

[0064] Example 3: Weigh 90 parts of polyether polyol A: polyoxypropylene triol NJ-303 (hydroxyl value 475 mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.), polyether polyol B: polyoxypropylene polyol Alcohol NJ-8211 (hydroxyl value 430mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.) 10 parts, polyether polyol C: polyoxypropylene polyol NJ-405A (hydroxyl value 475mgKOH / g, Jurong Ningwu New Material Development Co., Ltd.) 3 parts, stir in the mixing tank evenly, then add 0.5 parts of N, N-dimethylcyclohexylamine (Shanghai Yutian Chemical Co., Ltd.), 2 parts of triethylenediamine (American Gas Company), 3 parts of HCFC-141b (Zhejiang Hangzhou Fushite Chemical Co., Ltd.), 3 parts of silicone oil DC-193 (American Air Company), 3 parts of antistatic agent Anti-static Q617 (Dongguan Deshiken Shoe Material Co., Ltd.), Add 25 parts of flame retardant melamine polyphosphate into the above mixed solution, and continue stirring at high speed to obtain component A. Wei...

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Abstract

The invention discloses a coal-mine gas drainage hole drilling / sealing material and a preparation method thereof. The composition is composed of a component A and a component B in a mass ratio of (0.7-1.5):1, wherein the component A comprises 60-90 parts of polyether glycol A, 10-40 parts of polyether glycol B, 3-12 parts of polyether glycol C, 0.01-3 parts of catalyst, 0.5-5 parts of foaming agent, 0.1-3 parts of foam stabilizer, 1-3 parts of antistatic agent and 10-25 parts of flame retardant; and the component B is composed of 100-180 parts of polyisocyanate. The method comprises the following steps: uniformly stirring the polyether glycol A, polyether glycol B and polyether glycol C, adding the catalyst, foaming agent, foam stabilizer, antistatic agent and flame retardant into a mixing kettle, and uniformly stirring; weighing polyisocyanic acid, and barreling; and evenly mixing the component and component B according to the mass ratio, injecting the mixture into a coal bed hole with an injection pump, and curing. The material disclosed by the invention has the characteristics of high permeability, favorable flowability, adjustable foaming time, moderate expanded ratio, low cost and the like, and is convenient for construction.

Description

technical field [0001] The invention relates to the technical field of a coal mine gas drainage drilling and sealing material, in particular to a polyurethane rigid foam material used as a coal mine gas drainage drilling and sealing material and a preparation method thereof. Background technique [0002] Gas disaster is the first factor that restricts the safety and efficient production of coal mines. Borehole drainage is an effective measure for coal mine gas control and outburst prevention, and has a wide range of applications. The sealing quality of gas drainage drilling is a key factor to maintain negative or positive pressure at the bottom of the hole, which directly affects the performance of various drilling functions. In order to curb the occurrence of major accidents such as gas outbursts and gas explosions, improve drilling drainage efficiency, reduce the number of drilling holes, and save costs, it is of great practical significance to develop high-performance and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08J9/14C08K5/19C08K5/5333C08K5/521C08K5/523C08K5/3492C09K8/44C08G101/00
Inventor 李国法雷瑞袁聪孙欣新付东升郑化安
Owner SHAANXI COAL & CHEM TECH INST
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