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Mineral polyurethane spraying material and preparation method thereof

A spraying material, polyurethane technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of many construction personnel, high labor intensity, dry cracking of urea-formaldehyde resin, etc. Effect

Active Publication Date: 2014-05-07
SHANDONG INOV NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spraying mortar seriously pollutes underground, requires more construction workers, labor intensity is high, and work efficiency is low
Phenolic resin and urea-formaldehyde resin contain formaldehyde, which is irritating and toxic to construction workers, and phenolic resin emits a large amount of harmful gas when exposed to high temperature, and urea-formaldehyde resin will dry out and fall off after a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Prepare 100 kilograms of component A materials, weighing respectively: polyether polyol A (6 functionalities, molecular weight is 800) 42 kilograms, polyether polyol B (4 functionalities, molecular weight is 600) 23 kilograms, polyester polyol C (2 functionality, molecular weight is 340) 2 kg, polyester polyol D (2 functionality, molecular weight is 300) 2 kg, catalyst 1,3,5-tris(dimethylaminopropyl) hexahydrotriazine 0.5 kg, 0.7 kg of catalyst dibutyltin dilaurate, 0.1 kg of catalyst N, N, N', N", N"-pentamethyldiethylenetriamine, 1.2 kg of water, 1.5 kg of L-6950, monofluorodichloroethyl 16 kilograms of alkane, 11 kilograms of trichloropropyl phosphate. Put the weighed polyether polyol and polyester polyol into the mixing tank and stir, then add the weighed catalyst, water, stabilizer, foaming agent, and flame retardant respectively, stir evenly at room temperature, and take a sample to test After that, it can be loaded into barrels.

[0043] Component B is polyphen...

Embodiment 2

[0049] Prepare 100 kilograms of component A materials, weigh respectively: polyether polyol A (6 functionalities, molecular weight is 800) 45 kilograms, polyether polyol B (4 functionalities, molecular weight is 600) 25 kilograms, polyester polyol C (2 functionality, molecular weight is 340) 2 kg, polyester polyol D (2 functionality, molecular weight is 300) 3 kg, catalyst 1,3,5-tris(dimethylaminopropyl) hexahydrotriazine 0.3 kg, 0.7 kg of catalyst dibutyltin dilaurate, 0.1 kg of catalyst N, N, N', N", N"-pentamethyldiethylenetriamine, 1.4 kg of water, 1.5 kg of L-6950, monofluorodichloroethyl 10 kg of alkane and 11 kg of trichloropropyl phosphate. Put the weighed polyether polyol and polyester polyol into the mixing tank and stir, then add the weighed catalyst, water, stabilizer, and foaming agent respectively, and stir evenly at room temperature. After sampling and testing are qualified, you can barreled.

[0050] Component B is polyphenyl polymethylene polyisocyanate.

...

Embodiment 3

[0056] Prepare 100 kilograms of component A materials, weighing respectively: 40 kilograms of polyether polyol A (6 functionality, molecular weight is 880), 20 kilograms of polyether polyol B (4.0 functionality, molecular weight is 600), polyester polyol C (2 functionality, molecular weight is 340) 2 kg, polyester polyol D (2 functionality, molecular weight is 300) 3 kg, catalyst 1,3,5-tris(dimethylaminopropyl) hexahydrotriazine 0.5 kg, 0.7 kg of dibutyltin dilaurate, 0.1 kg of catalyst N, N, N', N", N"-pentamethyldiethylenetriamine, 1.4 kg of water, 1.3 kg of L-6950, monofluorodichloroethane 21 kg, 11 kg of trichloropropyl phosphate. Put the weighed polyether polyol and polyester polyol into the mixing tank and stir, then add the weighed catalyst, water, stabilizer, foaming agent, and flame retardant respectively, stir evenly at room temperature, and take a sample to test After that, it can be loaded into barrels.

[0057] Component B is polyphenyl polymethylene polyisocyan...

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Abstract

The invention belongs to the field of chemical synthesis, particularly relates to a mineral polyurethane spraying material and a preparation method thereof and more particularly relates to a double-component (A and B) polyurethane material and a preparation method thereof. The material is mainly used for rapidly spraying and sealing underneath mine; and through the selection of polyol, auxiliaries and isocyanate, the spraying material has good adhesion on a rock coal body; and after adhesion is carried out, the material has good anti-shearing property and toughness and resists impact. According to the invention, the viscosity of the material is reduced so that the material can well permeate into a coal bed or a fine crack of a rock stratum, and simultaneously, the related raw materials are low in smell, do not contain volatile solvent and do not generate any toxic gases, thereby completely meeting the use and environment-friendly requirements of a coal mine reinforcement material.

Description

technical field [0001] The invention belongs to the field of chemical synthesis, and in particular relates to a mine-used polyurethane spraying material and a preparation method thereof. Background technique [0002] During the excavation process of the new coal mine roadway, the surface rocks are easily damaged by weathering, and accidents of falling rocks and people are prone to occur. Therefore, the surface of the roadway needs to be coated. By spraying and sealing the wall of the goaf, the air leakage and gas gushing out of the gob can be effectively prevented, and the occurrence of coal-oxygen compound heat release and coal seam fire can be prevented. In addition, spray the surface of masonry closed walls and coal wall joints to prevent carbon monoxide and gas leakage. [0003] At present, the treatment methods for mine roadway walls mainly include spraying mortar, phenolic resin, urea-formaldehyde resin, etc. Spraying mortar is seriously polluted underground, requiri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D175/06C09D7/12
Inventor 由明张丽郝德开
Owner SHANDONG INOV NEW MATERIALS CO LTD
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