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Silicate polyurethane composite reinforcing material for coal mines and preparation method of silicate polyurethane composite reinforcing material

A reinforcement material and silicate technology, which is applied in the field of silicate polyurethane composite reinforcement materials for coal mines and its preparation, can solve problems such as poor antistatic performance, high cost, and insufficient flame retardancy, and achieve improved stability and fluidity. Good performance, improve the effect of mechanical properties

Inactive Publication Date: 2020-02-14
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

However, traditional polyurethane grouting materials also have some disadvantages in the grouting process, such as high cost, insufficient flame retardancy, poor antistatic performance, etc. Therefore, the necessity of finding alternatives for polyurethane grouting materials is highlighted

Method used

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  • Silicate polyurethane composite reinforcing material for coal mines and preparation method of silicate polyurethane composite reinforcing material
  • Silicate polyurethane composite reinforcing material for coal mines and preparation method of silicate polyurethane composite reinforcing material
  • Silicate polyurethane composite reinforcing material for coal mines and preparation method of silicate polyurethane composite reinforcing material

Examples

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Effect test

Embodiment 1

[0030] The described silicate polyurethane composite reinforcement material for coal mines is made of component A and component B, wherein:

[0031] Component A is, in parts by weight:

[0032]

[0033] Component B is, in parts by weight:

[0034]

[0035] The sodium silicate solution has a modulus of 2.4 and a Baume degree of 48°; the polyether polyol uses glycerol as an initiator, a polyether polyol with a functionality of 3 and a hydroxyl value of 450 mgKOH / g.

[0036] The preparation method comprises the following steps:

[0037] (1) Mix sodium silicate solution, AK-8805, glycerin, glucose, polyether polyol and dimethylaminoethoxyethanol in proportion to obtain component A;

[0038] (2) After PAPI, dioctyl phthalate, polyether polyol and propylene carbonate are mixed uniformly in proportion, component B is obtained;

[0039] When using, grout according to the volume ratio of component A and component B is 1:1.

Embodiment 2

[0041] The described silicate polyurethane composite reinforcement material for coal mines is made of component A and component B, wherein:

[0042] Component A is, in parts by weight:

[0043]

[0044] Component B is, in parts by weight:

[0045]

[0046] The sodium silicate solution has a modulus of 2.6 and a Baume degree of 45°; the polyether polyol uses glycerol as an initiator, has a functionality of 3 and a hydroxyl value of 400.

[0047] The preparation method comprises the following steps:

[0048] (1) Mix sodium silicate solution, AK-8805, glycerin, ethylene glycol, maltose, polyether polyol and dimethylaminoethoxyethanol in proportion to obtain component A;

[0049] (2) After PAPI, dioctyl phthalate, polyether polyol and propylene carbonate are mixed uniformly in proportion, component B is obtained;

[0050] When using, grout according to the volume ratio of component A and component B is 1:1.

Embodiment 3

[0052] The described silicate polyurethane composite reinforcement material for coal mines is made of component A and component B, wherein:

[0053] Component A is, in parts by weight:

[0054]

[0055] Component B is, in parts by weight:

[0056]

[0057] The potassium silicate solution has a modulus of 2.8 and a Baume degree of 44°; the polyether polyol uses ethylene glycol as an initiator, a polyether polyol with a functionality of 2 and a hydroxyl value of 100.

[0058] The preparation method comprises the following steps:

[0059] (1) Mix potassium silicate solution, AK-158, glycerol, glucose, polyether polyol and dimethylaminoethoxyethanol in proportion to obtain component A;

[0060] (2) After PAPI, dioctyl phthalate, polyether polyol and propylene carbonate are mixed uniformly in proportion, component B is obtained;

[0061] When using, grout according to the volume ratio of component A and component B is 1:1.

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Abstract

The invention belongs to the field of coal mine reinforcing materials, and particularly relates to a silicate polyurethane composite reinforcing material for coal mines and a preparation method of thesilicate polyurethane composite reinforcing material; the reinforcing material is prepared from a component A and a component B, wherein the component A is composed of a silicate solution, a foam stabilizer, an emulsifier, a catalyst, a polyhydroxy compound and polyether polyol; and the component B is composed of PAPI, a plasticizer, polyether polyol and a viscosity reducer. A brand-new organic and inorganic composite material is adopted, good mechanical strength, bonding strength, stability and high flame retardance are achieved, and instability of an inorganic reinforcing material is improved. Meanwhile, the invention also provides the preparation method of the silicate polyurethane composite reinforcing material.

Description

technical field [0001] The invention belongs to the field of coal mine reinforcement materials, in particular to a silicate polyurethane composite reinforcement material for coal mines and a preparation method thereof. Background technique [0002] my country is a big country of coal production. With the rapid development of economy, the demand for coal in industrial production increases accordingly. On the one hand, many large, high-yield and high-efficiency coal mines have been put into production in large quantities, and on the other hand, the mining depth of coal mines that have already been mined has been further increased. However, coal mining will encounter a variety of special geological disasters, such as fault zones, broken and loose surrounding rock areas, and fracture development zones, etc., causing safety accidents such as roof fall and landslides, which not only affect the efficiency of coal mining, but more seriously Threats to the life safety of underground...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/32C08K3/34C08K5/12
CPCC08G18/3206C08G18/48C08G18/6611C08G18/7664C08K3/34C08K5/12
Inventor 高祥孟泽张朋
Owner 山东润义金新材料科技股份有限公司
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