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Macromolecule grouting reinforcement material for coal mines and preparation method of macromolecule grouting reinforcement material

A grouting reinforcement and polymer technology, applied in the field of new materials, can solve the problems of high internal temperature and safety hazards, and achieve the effects of low reaction heat, elimination of safety hazards and low reaction temperature.

Inactive Publication Date: 2017-12-01
山东润义金新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the polymer chemical materials used in mine roadway reinforcement treatment methods, due to the accumulation of reaction heat during use, cause their internal temperature to be too high, even as high as 200 ° C and ignite low-flammable gas, so that in coal mines Use in high gas environment, there are certain safety hazards

Method used

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  • Macromolecule grouting reinforcement material for coal mines and preparation method of macromolecule grouting reinforcement material
  • Macromolecule grouting reinforcement material for coal mines and preparation method of macromolecule grouting reinforcement material
  • Macromolecule grouting reinforcement material for coal mines and preparation method of macromolecule grouting reinforcement material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare 100kg of component A material, weighing respectively: polyether polyol A 28kg, polyether polyol B 25kg, toluene diisocyanate 15kg, catalyst 0.5kg, antistatic agent 1.5kg, diluent 1kg, flame retardant 29kg.

[0037] Polyether polyol A is SA430.

[0038] Polyether polyol B is MN350.

[0039] The flame retardant is TCPP.

[0040] The catalyst is an organometallic catalyst.

[0041] The antistatic agent is Basionics LQ 01 produced by BASF.

[0042] The diluent is N,N-dimethylformamide.

[0043] First, add polyether polyol B into the polymerization kettle and raise the temperature to above 95°C for vacuum dehydration; after the dehydration is completed, add toluene diisocyanate into the polymerization kettle and react at 80°C for about 1.5 hours, then take samples for testing; after passing the test , reduce the temperature of the material to below 50°C, then add the formulated amount of polyether polyol A, catalyst, antistatic agent, diluent, flame retardant and...

Embodiment 2

[0052] Prepare 100kg of component A material, weighing respectively: polyether polyol A 28kg, polyether polyol B 25kg, toluene diisocyanate 15kg, water 0.3kg, catalyst 0.6kg, antistatic agent 1.3kg, diluent 1kg, flame retardant Dosage 28.8kg.

[0053] Polyether polyol A is SA635.

[0054] Polyether polyol B is MN470.

[0055] The flame retardant is TCP.

[0056] The catalyst is an organic amine catalyst.

[0057] The antistatic agent is Basionics LQ 01 produced by BASF.

[0058] The diluent is N,N-dimethylformamide.

[0059] First, add polyether polyol B into the polymerization kettle and raise the temperature to above 95°C for vacuum dehydration; after the dehydration is completed, add toluene diisocyanate into the polymerization kettle and react at 80°C for about 1.1h, then take a sample for testing; after passing the test , reduce the temperature of the material to below 50°C, then add polyether polyol A, catalyst, water, antistatic agent, thinner, flame retardant and st...

Embodiment 3

[0068] Prepare and prepare 100kg of component A material, weighing respectively: polyether polyol A 28kg, polyether polyol B 25kg, toluene diisocyanate 15kg, water 0.7kg, foam stabilizer 0.5kg, catalyst 0.6kg, antistatic agent 1.2kg , thinner 1kg, flame retardant 28kg.

[0069] Polyether polyol A is SA470.

[0070] Polyether polyol B is MN700.

[0071] The flame retardant is TCPP.

[0072] The foam stabilizer is AK-8807.

[0073] The catalyst is an organometallic catalyst.

[0074] The antistatic agent is Basionics LQ 01 produced by BASF.

[0075] The diluent is N,N-dimethylformamide.

[0076] First, add polyether polyol B into the polymerization kettle and raise the temperature to above 95°C for vacuum dehydration; after the dehydration is completed, add toluene diisocyanate into the polymerization kettle and react at 80°C for about 2 hours, then take samples for testing; after passing the test, put The temperature of the material is lowered to below 50°C, then polyethe...

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Abstract

The invention relates to a macromolecule grouting reinforcement material for coal mines and a preparation method of the macromolecule grouting reinforcement material. The macromolecule grouting reinforcement material contains a component A and a component B, wherein the component A contains the following components in parts by weight: 10-37 parts of polyether polyol A, 20-45 parts of a -OH-terminated prepolymer, 0-1.8 parts of a foam stabilizer, 0-1 parts of water, 0.4-2.6 parts of a catalyst, 0.2-2 parts of an antistatic agent, 1-2 parts of a diluent and 20-40 parts of a flame retardant; and the component B contains the following components in parts by weight: 10-25 parts of polymethylene polyphenyl isocyanate, 50-75 parts of a -NCO-terminated prepolymer, 1-2 parts of a diluent and 10-30 parts of a flame retardant. According to the macromolecule grouting reinforcement material, the reaction heat is greatly reduced, so that the reaction temperature in the use process of the material is decreased, and the safety hazards in the use process of the material are eliminated; the mechanical property and flame-retardant anti-static property of the material can meet underground use requirements; and the material is low in odor, non-toxic, non-corrosion and harmless to a human body.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a polymer grouting reinforcement material for coal mines and a preparation method thereof. Background technique [0002] In the process of underground mining and production in coal mines, roof management is a key link related to safe production. However, roof caving and slabs caused by broken coal and rock mass are likely to cause accidents of falling and hurting people. It has always been an unavoidable technical problem in coal mine production. Therefore, the roadway and The working face needs to be strengthened. In addition, as the mining depth increases, the water inflow in the mine increases, and the water content in the broken coal rock body increases, making roof management more difficult. According to statistics, extremely broken, water-rich and water-drenched coal rocks account for about 30% of the total coal mining face and roadway engineering, and there is an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/10C08G18/76C08K5/521C08J9/08C08G101/00
CPCC08G18/10C08G18/4812C08G18/4825C08G18/4829C08K5/521C08G2110/0083C08G18/48C08G18/7664
Inventor 尚伟张朋赵政
Owner 山东润义金新材料科技股份有限公司
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