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Rapid sealing material

A fast and precise preparation technology, applied in the field of fast sealing materials, can solve the problems of air tightness and poor adhesion, and achieve the effect of fast response speed

Active Publication Date: 2011-05-11
ANHUI JIATAI COAL MINING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current rapid sealing materials are poor in air tightness and adhesion, and there is an urgent need for a fast sealing material with good air tightness and strong adhesion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] First, 70 parts by weight of polyethylene glycol ether (functionality less than or equal to 4, hydroxyl equivalent of more than 1000), 5 parts of triethylene diamine, 5 parts of methyl dimethyl phosphate, 1 part of α-methyl styrene Mix, put it into a pressure-resistant steel bottle that has been cleaned and dried in advance, and seal, vacuumize for 3 hours at 140°C and 0.06Mpa; then stop vacuuming, cool the material to 80°C and mix and stir evenly; finally add 5 parts of two Fluoro-dichloromethane and 1.0Mpa nitrogen were used to obtain the A preparation.

[0010] Put 90 parts of diisocyanate (functionality less than 2.4) into a clean and dry pressure-resistant steel cylinder according to parts by weight, and seal the excess air in the cylinder under the conditions of 100℃ and 0.1Mpa to vacuum; then add 5 parts of difluoride Dichloromethane, and finally add 1.0Mpa nitrogen to obtain the B preparation.

[0011] In the fire roadway, there is moderate smoke, temperature 30℃, c...

Embodiment 2

[0013] First, by weight, 80 parts of polyethylene glycol ether (functionality less than or equal to 4, hydroxyl equivalent of more than 1000), 10 parts of triethylene diamine, 10 parts of methyl dimethyl phosphate, 5 parts of α-methyl styrene Mix, put it into a pressure-resistant steel bottle that has been cleaned and dried in advance, and seal, vacuumize for 3 hours at 140°C and 0.06Mpa; then stop vacuuming, cool the material to 80°C and mix and stir evenly; finally add 10 parts of two Fluoro-dichloromethane and 1.5Mpa nitrogen were used to obtain the A preparation.

[0014] Put 95 parts of diisocyanate (functionality less than 2.4) into a clean and dried pressure-resistant steel cylinder according to parts by weight, and then evacuate the excess air in the cylinder under the conditions of 100℃ and 0.1Mpa; then add 10 parts of difluoride Dichloromethane, and finally add 1.5Mpa nitrogen to obtain the B preparation.

[0015] In the fire roadway, there is moderate smoke, temperature...

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Abstract

The invention discloses a rapid sealing material, which consists of an A group of preparations and a B group of preparations, wherein the A group of preparations consists of 70 to 80 weight parts of polyglycol ether, 5 to 10 weight parts of triethylene diamine, 5 to 10 weight parts of dimethyl methylphosphonate, 1 to 5 weight parts of alpha-methyl styrene, 5 to 10 weight parts of difluorodichloromethane and 1 to 1.5 megapascals of nitrogen; and the B group of preparations consists of 90 to 95 weight parts of diisocyanate, 5 to 10 weight parts of difluorodichloromethane and 1.0 to 1.5 megapascals of nitrogen. The rapid sealing material provided by the invention has the characteristics of high fire retardance, high density and high reaction speed, and after being injected into a plugged part, can be rapidly expanded and isolate a passage space to limit the spreading and dissemination of heat, water, fire, harmful gases and dust, thereby fulfilling the aims of plugging a passage and isolating air.

Description

Technical field [0001] The invention relates to a fast sealing material. Background technique [0002] SPUA, also known as Polyurea Elastomer (short for Spray Polyurea Elastomer) technology is a new solvent-free and pollution-free green construction technology developed and developed to meet the needs of environmental protection in the past ten years abroad, following the polyurethane technology. It is developed on the basis of reaction injection molding (RIM) technology. SPUA technology is a new type of "universal" coating technology, known as the greatest discovery in the field of coatings and coating technology at the end of the 20th century. It combines new technologies, new materials and new processes, and is a revolutionary leap of traditional construction technology. It has been applied in developed countries such as North America for more than ten years, and the market demand is very strong. The current fast-sealing materials have poor air-tightness and adhesion, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/67C08G18/48C08K5/521C08J9/16C08J9/30C08G101/00
Inventor 莫维永
Owner ANHUI JIATAI COAL MINING TECH
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