Preparation method of flame-retardant and waterproof aqueous polyurethane coating and adhesive

A water-based polyurethane, waterproof technology, used in polyurea/polyurethane coatings, polyurea/polyurethane adhesives, adhesives, etc.

Active Publication Date: 2014-10-22
上海汉司实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dibutyltin dilaurate is often used as a catalyst in the synthesis of polyurethane, but since the heavy metal tin is harmful to the environment with the degradation of polyurethane, efficient and non-toxic catalysts are screened is a major problem in the synthesis of polyurethane

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] (1) Catalyst preparation: Add 10mg of fullerene and 30ml of redistilled ethylenediamine into a 250ml three-necked flask equipped with a stirrer and a thermometer, react in an oil bath at 70°C for 12h under nitrogen protection, and remove excess ethylenediamine under reduced pressure , the obtained tan viscous material was dissolved in 2ml of distilled water, and then 40ml of ethanol was added, a large amount of gray-brown precipitate was precipitated, centrifuged, the solid was washed twice with ethanol, and vacuum-dried at 80°C to obtain fullerene in the form of a gray-brown powder Ethylenediamine derivatives: Dissolve the above fullerene ethylenediamine derivatives in 10 ml of distilled water, pour into 30ml of an aqueous solution containing 200mg of aluminum sulfate and 100mg of magnesium sulfate, heat to 80°C, brown precipitates will appear, keep warm After 30 minutes, centrifuge while hot, wash the solid matter with distilled water three times, and dry in vacuum to ...

example 2

[0029] (1) Catalyst preparation: Add 10mg of fullerene and 30ml of redistilled ethylenediamine into a 250ml three-necked flask equipped with a stirrer and a thermometer, react in an oil bath at 70°C for 12h under nitrogen protection, and remove excess ethylenediamine under reduced pressure , the obtained tan viscous material was dissolved in 2ml of distilled water, and then 40ml of ethanol was added, a large amount of gray-brown precipitate was precipitated, centrifuged, the solid was washed twice with ethanol, and vacuum-dried at 80°C to obtain fullerene in the form of a gray-brown powder Ethylenediamine derivatives: Dissolve the above fullerene ethylenediamine derivatives in 10 ml of distilled water, pour into 30ml of an aqueous solution containing 200mg of aluminum sulfate and 100mg of magnesium sulfate, heat to 80°C, brown precipitates are formed, keep warm After 30 minutes, centrifuge while hot, wash the solid with distilled water three times, and dry in vacuum to obtain m...

example 3

[0034](1) Catalyst preparation: Add 10mg of fullerene and 30ml of redistilled ethylenediamine into a 250ml three-necked flask equipped with a stirrer and a thermometer, react in an oil bath at 70°C for 12h under nitrogen protection, and remove excess ethylenediamine under reduced pressure , the obtained tan viscous material was dissolved in 2ml of distilled water, and then 40ml of ethanol was added, a large amount of gray-brown precipitate was precipitated, centrifuged, the solid was washed twice with ethanol, and vacuum-dried at 80°C to obtain fullerene in the form of a gray-brown powder Ethylenediamine derivatives: Dissolve the above fullerene ethylenediamine derivatives in 10 ml of distilled water, pour into 30ml of an aqueous solution containing 200mg of aluminum sulfate and 100mg of magnesium sulfate, heat to 80°C, brown precipitates will appear, keep warm After 30 minutes, centrifuge while hot, wash the solid matter with distilled water three times, and dry in vacuum to o...

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PUM

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Abstract

The invention discloses a preparation method of a flame-retardant and waterproof aqueous polyurethane coating and adhesive. The method comprises the following steps: mixing 1,4-di(dimethyl hydroxysilyl) benzene with isophorone diisocyanate in the presence of modified fullerene A, adding a synergist and 2-butoxyl-N-(2-diethylaminoethyl)-4-quinoline formamide hydrochloride and reacting for 1 to 5 hours at 70 DEG C to 80 DEG C so as to obtain a polyurethane prepolymer A; adding a chain extender and a solvent into the prepolymer A, reacting for 3 to 4 hours at 60 DEG C to 80 DEG C, then adding triethylamine and carrying out a neutral reaction for 30 to 60 minutes; then adding a modified manganese hypophosphate solution, coconut oil monoethanolamide and sulfaquinoxaline and reacting for 1 hour at 70 DEG C; and adding water and sodium dodecyl sulfate and emulsifying for 60 minutes, thereby obtaining the flame-retardant and waterproof aqueous polyurethane coating and adhesive. The prepared flame-retardant and waterproof aqueous polyurethane coating and adhesive is environment-friendly and low in cost, and can be widely applied to walls, furniture and metalware surfaces as well as can serve as an adhesive for plastics, glass, papermaking and textiles.

Description

technical field [0001] The invention relates to a preparation method of a polyurethane coating, in particular to a preparation method of a flame-retardant and waterproof water-based polyurethane coating and an adhesive. Background technique [0002] The main application fields of waterproof materials include roofing, underground, exterior walls and interiors of housing construction; municipal projects such as urban roads, bridges and underground spaces; bridges and tunnels of expressways and high-speed railways; traffic projects such as underground railways; aqueducts, reservoirs, dams , water conservancy power station and water treatment and other water conservancy projects, suitable for waterproofing, anti-seepage, and moisture-proof of roofs, toilets, basements, reservoirs, and walls. According to the application materials, it can be used in papermaking, textile, leather and other fields. [0003] Dibutyltin dilaurate is often used as a catalyst in the synthesis of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/00C09D5/18C09J175/04C09J11/06C08G18/75C08G18/32C08G18/16
Inventor 段小宁罗声王亚茜
Owner 上海汉司实业有限公司
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