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High-strength silicate/polyurethane urea-based composite reinforcing material and preparation method thereof

A polyurethane urea-based and reinforcement material technology, which is applied in the field of high-strength silicate/polyurethane urea-based composite reinforcement materials and its preparation, can solve problems such as high reinforcement reaction temperature, large-area use impact, and many toxic and harmful substances, and achieve improvement. Excellent water resistance, adhesion, heat resistance, and strong adhesion

Active Publication Date: 2022-01-21
山西凝固力新型材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its reinforcement reaction temperature is high, and there are many toxic and harmful substances in the formed reinforcement materials, and there will be many hidden dangers in underground operations, especially in coal mines, which are greatly restricted.
In addition, the high cost of pure polyurethane materials also has a certain impact on its large-area use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high-strength silicate / polyurethane urea-based composite reinforcement material described in this embodiment is composed of component A, component B and component C. The content and composition of each component are as follows:

[0033] Component A: Take 80 parts of sodium silicate water glass, 11 parts of lithium silicate water glass, 4 parts of glycerin, and 5 parts of water;

[0034] Component B: take 80 parts of PAPI, 15 parts of polyurethane prepolymer, and 5 parts of trioctyl citrate;

[0035] Component C: Take 0.5 parts of DMAEE catalyst, 1 part of BDMA catalyst, 1 part of N,N-dimethylcyclohexylamine catalyst, 1 part of EFKA-2550 defoamer, 1 part of UN-025 anti-hydrolysis agent, 1.5 parts of XY - KM003 antifungal agent; 0.5 parts of HY11190 ultraviolet absorber.

[0036] Concrete preparation method, prepare according to the following steps:

[0037] The first step, the preparation of component A:

[0038] Add 80 parts of sodium silicate water glass into the ...

Embodiment 2

[0054] A high-strength silicate / polyurethane urea-based composite reinforcement material described in this embodiment is composed of component A, component B and component C. The content and composition of each component are as follows:

[0055] Component A: Take 87 parts of sodium silicate water glass, 9 parts of lithium silicate water glass, 2 parts of glycerin, and 2 parts of water;

[0056] Component B: take 88 parts of PAPI, 10 parts of polyurethane prepolymer, and 2 parts of trioctyl citrate;

[0057] Component C: Take 1 part of DMAEE catalyst, 0.5 part of BDMA catalyst, 0.5 part of N,N-dimethylcyclohexylamine catalyst, 0.5 part of EFKA-2550 defoamer, 0.5 part of UN-025 anti-hydrolysis agent, 0.6 part of XY - KM003 antifungal agent; 0.2 parts of HY11190 ultraviolet absorber.

[0058] Concrete preparation method, prepare according to the following steps:

[0059] The first step, the preparation of component A:

[0060] Add 87 parts of sodium silicate water glass into t...

Embodiment 3

[0076] The high-strength silicate / polyurethane urea-based composite reinforcement material described in this example is composed of component A, component B and component C. The content and composition of each component are as follows:

[0077] Component A: Take 82 parts of sodium silicate water glass, 10 parts of lithium silicate water glass, 4 parts of glycerin, and 4 parts of water;

[0078] Component B: take 86 parts of PAPI, 11 parts of polyurethane prepolymer, and 3 parts of trioctyl citrate;

[0079] Component C: Take 0.7 parts of DMAEE catalyst, 0.7 parts of BDMA catalyst, 0.7 parts of N,N-dimethylcyclohexylamine catalyst, 0.7 parts of EFKA-2550 defoamer, 0.7 parts of UN-025 anti-hydrolysis agent, 0.7 parts of XY -KM003 antifungal agent, 0.3 parts of HY11190 ultraviolet absorber.

[0080] Concrete preparation method, prepare according to the following steps:

[0081] The first step, the preparation of component A:

[0082] Add 82 parts of sodium silicate water glass...

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PUM

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Abstract

A component A is mainly composed of sodium silicate water glass, lithium silicate water glass, glycerol and water; a component B is composed of polyphenyl polymethylene polyisocyanate, a polyurethane prepolymer and trioctyl citrate; and a component C is composed of a DMAEE catalyst, a BDMA catalyst, an N, N-dimethylcyclohexylamine catalyst, an EFKA-2550 defoaming agent, an UN-025 anti-hydrolysis agent, an XY-KM003 anti-mildew agent and an HY11190 ultraviolet light absorber. The high-strength silicate / polyurethane urea-based composite reinforcing material can be obtained by uniformly stirring and mixing the component A and the component C, defoaming, and mixing and reacting with the defoamed component B through a mixing head of a grouting machine. Or the high-strength silicate / polyurethane urea-based composite reinforcing material can be formed by mixing the materials through a mixing head of a grouting machine and directly grouting the materials into roadbed cracks, open joints or tunnel and coal seam cracks. The composite reinforcing material is high in comprehensive mechanical property and excellent in reinforcing effect on defects such as roadbed cracks and open joints or tunnel cracks, cracks and loose coal seams.

Description

technical field [0001] The invention belongs to the reinforcement technical field of railway subgrade engineering, tunnel engineering or coal mining loose coal seam, and in particular relates to a high-strength silicate / polyurethane urea-based composite reinforcement material and a preparation method thereof. Background technique [0002] Cracks and separations of railway subgrades and loose coal seams in coal mines are a major hidden danger to safe production. Grouting reinforcement of cracks and separations of railway subgrades and loose coal seams in coal mines is a powerful measure to ensure safe production. Polyurethane reinforcement materials have been used in this area for a long time. Utilizing their excellent connection and bonding characteristics with concrete and coal seams, broken concrete and coal seams are connected into a whole, increasing their integrity and supporting force, and can quickly solve various problems. For stratum problems with safety hazards, pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/04C08K3/34C08K5/11C08G18/18C08G18/63
CPCC08K3/34C08K5/11C08G18/1825C08G18/1816C08G18/632C08K2201/014C08L75/04
Inventor 李万捷王建中范福洋毛宇杰王瑞王千雅薄鸿鹏常澔男王涛柴亚跃
Owner 山西凝固力新型材料股份有限公司
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