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A kind of highly elastic flame-retardant two-component wall surface material and its preparation method

A two-component, high-elasticity technology, applied in the field of mine ventilation, can solve the problems of uneven wall surface, increased roadway deformation, and high cost of spraying materials

Active Publication Date: 2020-03-06
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high ground pressure increases the deformation of the roadway, which leads to the cracking of the wall of the ventilation structure, which increases the amount of air leakage and affects the production safety of the mine.
[0003] Although some existing wall materials have good effects, there are certain problems in the process of use: the construction process of rockshou, aeglauni, and Ruimi sealing materials is complex, requiring special equipment, and the cost of QC spraying materials is high and the economic benefits are poor. , In addition, the walls of these materials are not smooth after spraying

Method used

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  • A kind of highly elastic flame-retardant two-component wall surface material and its preparation method
  • A kind of highly elastic flame-retardant two-component wall surface material and its preparation method

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preparation example Construction

[0030] The present invention also provides a method for preparing the above-mentioned highly elastic flame-retardant two-component wall surface material, which includes the following steps:

[0031] A. Add the polyglycerol ether into the reaction vat, under the conditions of 105±5°C and vacuum degree of 0.085-0.09MPa, vacuum dehydration treatment for 1 hour, then lower it to below 60°C, add hydroquinone, stir evenly, and then Add toluene diisocyanate, nitrile rubber and polymethacrylate, then raise the temperature to 80±5°C for two hours, cool down to below 60°C, and cool naturally to obtain the above-mentioned component A prepolymer;

[0032] B. Add liquid filler, dioctyl phthalate, and 1,4-butanediol into the reaction vat, heat up to 100±5°C while stirring, then add 3,3'-dichloro-4,4'- Diaminodiphenylmethane was reacted for 5 minutes, then calcium carbonate and antistatic agent were added for stirring and dehydration, and organic tin, diphenylamine and triphosphate were adde...

Embodiment 1

[0036] According to parts by weight, it is made of the following raw materials by weight. The prepolymer of component A includes 700 parts of polyglycerol ether, 1.06 parts of hydroquinone, 90 parts of toluene diisocyanate, 100 parts of nitrile rubber, and polymethacrylate 50 parts; B-component prepolymer includes 650 parts of liquid filler, 20 parts of octyl phthalate, 30 parts of 1,4-butanediol, 3,3'-dichloro-4,4'-diaminobis 10 parts of phenylmethane, 250 parts of calcium carbonate, 3.08 parts of antistatic agent, 1.03 parts of organotin catalyst, 4.08 parts of diphenylamine, 5.12 parts of triphosphate.

[0037] To obtain the above-mentioned highly elastic flame-retardant two-component wall material, the specific steps are:

[0038]Step 1: Add polyglycerol ether into the reaction vat at 105±5°C, vacuum degree 0.085-0.09MPa, vacuum dehydration for 1 hour, then drop below 60°C, add hydroquinone, stir evenly, Then add toluene diisocyanate, nitrile rubber and polymethacrylate, ...

Embodiment 2

[0042] According to parts by weight, it is made of the following raw materials by weight. The prepolymer of component A includes 750 parts of polyglycerol ether, 1.24 parts of hydroquinone, 81 parts of toluene diisocyanate, 82 parts of nitrile rubber, polymethacrylate 65 parts; B-component prepolymer includes 700 parts of liquid filler, 16.17 parts of octyl phthalate, 42 parts of 1,4-butanediol, 3,3'-dichloro-4,4'-diaminobis 12.12 parts of phenylmethane, 214 parts of calcium carbonate, 5.06 parts of antistatic agent, 1.72 parts of organic tin catalyst, 5.02 parts of diphenylamine, and 6.24 parts of triphosphate.

[0043] To obtain the above-mentioned highly elastic flame-retardant two-component wall material, the specific steps are:

[0044] Step 1: Add polyglycerol ether into the reaction vat at 105±5°C, vacuum degree 0.085-0.09MPa, vacuum dehydration for 1 hour, then drop below 60°C, add hydroquinone, stir evenly, Then add toluene diisocyanate, nitrile rubber and polymethac...

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Abstract

Disclosed by the present invention are a high-elasticity flame-retardant dual-component wall surface material and a preparation method therefor. A component A prepolymer comprises: polyglycerol ether, hydroquinone, toluene diisocyanate, nitrile rubber and polymethylpropionate; a component B prepolymer comprises: liquid filler, octyl phthalate, 1,4-butanediol, 3,3'-dichloro-4,4'-diaminodiphenylmethane, calcium carbonate, an antistatic agent, an organic tin catalyst, diphenylamine, and triphosphate; according to a ratio of 2: 1, the component A prepolymer and the component B prepolymer are thoroughly mixed to obtain the described high-elasticity flame-retardant dual-component wall surface material. A coating thereof has good compactness, is non-flammable, is simple to construct, and has adjustable thickness. The component A prepolymer, the component B prepolymer and the novel wall surface material are not flammable and may be directly applied to a wall. Since the thickness of a coating is adjustable, the described material may be applied to places at which air leakage easily occurs, such as a mine ventilation door, a seal gap, and so on, and the material has good elasticity and strong tensile resistance.

Description

technical field [0001] The invention relates to the technical field of mine ventilation, in particular to a highly elastic flame-retardant two-component wall surface material and a preparation method thereof. Background technique [0002] In order to realize the stability and reliability of the ventilation system, there must be a stable and reliable ventilation structure. However, with the improvement of the degree of mechanization of mine mining and the increase of coal mining depth, the section (roadway) of the construction point of ventilation facilities is required to increase continuously, and the ventilation facilities need to have higher pressure bearing capacity and air leakage prevention capacity. However, the high ground pressure increases the deformation of the roadway, which leads to the cracking of the wall of the ventilation structure, which increases the amount of air leakage and affects the production safety of the mine. [0003] Although some existing wall ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/08C08L9/02C08L33/10C08L77/12C08K13/02C08K5/12C08K3/26C08K5/521C08G18/76C08G18/48
CPCC08G18/4829C08G18/7614C08K2003/265C08K2201/003C08L75/08C08L2201/02C08L2205/035C08L9/02C08L33/10C08L77/12C08K13/02C08K5/12C08K3/26C08K5/521
Inventor 苗德俊程英模徐毓名郑珂孔令晓
Owner SHANDONG UNIV OF SCI & TECH
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