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Polyurethane material for tunnel water plugging and preparation method thereof

A polyurethane material and water technology, applied in the field of polyurethane materials, can solve the problems of roof spraying, large water content of tunnel rock mass, difficult roof management, etc., and achieve the effects of improving efficiency, good toughness and good adhesion

Inactive Publication Date: 2015-09-23
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

[0002] In the tunnel excavation process of large-scale engineering construction such as railways, highways, and subways, as the excavation depth increases, the water inflow in the tunnel increases, the water content in the tunnel rock body is large, and the roof appears water, which makes roof management more difficult

Method used

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  • Polyurethane material for tunnel water plugging and preparation method thereof
  • Polyurethane material for tunnel water plugging and preparation method thereof
  • Polyurethane material for tunnel water plugging and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Prepare 100 kg of component A material: Weigh 51 kg of polypropylene oxide ether polyol with 6 functionalities and a molecular weight of 800, 19 kg of polyether polyol GJ-480219 kg, and 0.3 kg of water, and put them into a mixing kettle Stir well; add 0.2 kg of dibutyltin mercaptide, 0.2 kg of lead isooctanoate, 0.4 kg of 2,4,6-tris(dimethylaminomethyl)phenol, 0.4 kg of bismorpholine diethyl ether, phthalic acid 28.5 kilograms of dioctyl esters, stir evenly.

[0026] (2) Prepare 100 kg of component B materials: put 75 kg of weighed polymethylene polyphenyl polyisocyanate and 25 kg of diphenylmethane diisocyanate into a mixing tank and stir evenly.

[0027] Mix A and B component materials according to the mass ratio of A:B=1:1. After foaming, the polyurethane material for tunnel water plugging can be obtained, and the product index is tested.

[0028]

[0029]

Embodiment 2

[0031] (1) Prepare 100 kilograms of component A materials: Weigh 50 kilograms of polyoxypropylene ether polyols with 6 functionalities and a molecular weight of 800, 225 kilograms of polyether polyols GJ-480, and 0.5 kilograms of water, and put them into a mixing kettle Stir well; add 0.2 kg of dibutyltin mercaptide, 0.2 kg of lead isooctanoate, 0.4 kg of 2,4,6-tris(dimethylaminomethyl)phenol, 0.4 kg of bismorpholine diethyl ether, phthalic acid 23.3 kilograms of dioctyl esters, stir evenly.

[0032] (2) Prepare 100 kg of component B materials: put 75 kg of weighed polymethylene polyphenyl polyisocyanate and 25 kg of diphenylmethane diisocyanate into a mixing tank and stir evenly.

[0033] Mix A and B component materials according to the mass ratio of A:B=1:1. After foaming, the polyurethane material for tunnel water plugging can be obtained, and the product index is tested.

[0034]

Embodiment 3

[0036] (1) Prepare 100 kilograms of component A materials: Weigh 43.5 kilograms of polyoxypropylene ether polyols with 6 functionalities and a molecular weight of 800, 225 kilograms of polyether polyols GJ-480, and 0.3 kilograms of water, and put them into a mixing kettle Stir well; add 0.2 kg of dibutyltin mercaptide, 0.2 kg of lead isooctanoate, 0.4 kg of 2,4,6-tris(dimethylaminomethyl)phenol, 0.4 kg of bismorpholine diethyl ether, phthalic acid Dioctyl ester 30 kilograms, stir evenly.

[0037] (2) Prepare 100 kg of component B materials: put 70 kg of weighed polymethylene polyphenyl polyisocyanate and 30 kg of diphenylmethane diisocyanate into a mixing tank and stir evenly.

[0038] Mix A and B component materials according to the mass ratio of A:B=1:1. After foaming, the polyurethane material for tunnel water plugging can be obtained, and the product index is tested.

[0039] .

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Abstract

The invention belongs to the technical field of a polyurethane material and particularly relates to the polyurethane material for tunnel water plugging and a preparation method thereof. The polyurethane material for tunnel water plugging consists of a component A and a component B, wherein the component A comprises polyether polyol A, polyether polyol B, water, a metal catalyst, an amine catalyst and a plasticizer; the component B comprises polymethylene polyphenyl polyisocyanate and diphenyl-methane-diisocyanate. The water plugging material provided by the invention can be quickly cured according to water-outlet state, and after being cured, the material has good viscosity to a rock body, and is good in toughness and impact resistant; particularly, due to the adoption of polyether polyols for aqueous polyurethane, under heavy water flow, a consolidation material can absorb and lock much water, so that a quick leakage plugging effect is greatly improved; furthermore, related materials of the material are low in odor, do not contain volatile solvent and do not generate any poisonous gas, and using requirements and environment-protecting requirement in a tunneling process are completely met.

Description

technical field [0001] The invention belongs to the technical field of polyurethane materials, and in particular relates to a polyurethane material for tunnel water blocking and a preparation method thereof. Background technique [0002] In the tunnel excavation process of large-scale engineering construction such as railways, highways, and subways, as the excavation depth increases, the water inflow in the tunnel increases, the water content in the tunnel rock body is large, and the roof appears water, making roof management more difficult. According to statistics, rock masses with broken, water-rich and water-splashing conditions account for about 30% of the total tunnel projects, and there is an urgent need for fast and effective chemical water and leak plugging materials. [0003] In addition, looking for a leak-proof waterproof material with high strength, strong cohesion, good toughness, fast and effective can effectively solve the phenomenon of water gushing, leaking,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/48C08K5/12
CPCC08G18/7664C08G18/4804C08G18/7671C08K5/12
Inventor 尚伟由明黄雷
Owner 山东润义金新材料科技股份有限公司