A kind of preparation method of flame-retardant and waterproof waterborne polyurethane coating and adhesive

A water-based polyurethane, waterproof technology, applied in the direction of polyurea/polyurethane coatings, polyurea/polyurethane adhesives, adhesives, etc. Effect

Active Publication Date: 2016-03-23
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 envir

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] (1) Catalyst preparation: Add 10 mg of fullerene and 30 ml of redistilled ethylenediamine into a 250ml three-necked flask equipped with a stirrer and a thermometer, react in an oil bath at 70°C under nitrogen protection for 12 hours, and remove excess ethylenediamine under reduced pressure , the obtained tan viscous material was dissolved in 2ml of distilled water, then 40ml of ethanol was added, a large amount of beige precipitate was precipitated, centrifuged, and the solid was washed twice with ethanol, and dried under vacuum at 80°C to obtain fullerene in the form of beige powder Ethylenediamine derivatives: dissolve the above-mentioned fullerene ethylenediamine derivatives in 10ml 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 appear, and keep warm for 30min Afterwards, centrifuge while hot, wash the solid matter with distilled water 3 times, and vacuum-d...

example 2

[0028] (1) Catalyst preparation: Add 10 mg of fullerene and 30 ml of redistilled ethylenediamine into a 250ml three-necked flask equipped with a stirrer and a thermometer, react in an oil bath at 70°C under nitrogen protection for 12 hours, and remove excess ethylenediamine under reduced pressure , the obtained tan viscous material was dissolved in 2ml of distilled water, then 40ml of ethanol was added, a large amount of beige precipitate was precipitated, centrifuged, and the solid was washed twice with ethanol, and dried under vacuum at 80°C to obtain fullerene in the form of beige powder Ethylenediamine derivatives: dissolve the above-mentioned fullerene ethylenediamine derivatives in 10ml 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 appear, and keep warm for 30min Afterwards, centrifuge while hot, wash the solid matter with distilled water 3 times, and vacuum-d...

example 3

[0033](1) Catalyst preparation: Add 10 mg of fullerene and 30 ml of redistilled ethylenediamine into a 250ml three-necked flask equipped with a stirrer and a thermometer, react in an oil bath at 70°C under nitrogen protection for 12 hours, and remove excess ethylenediamine under reduced pressure , the obtained tan viscous material was dissolved in 2ml of distilled water, then 40ml of ethanol was added, a large amount of beige precipitate was precipitated, centrifuged, and the solid was washed twice with ethanol, and dried under vacuum at 80°C to obtain fullerene in the form of beige powder Ethylenediamine derivatives: dissolve the above-mentioned fullerene ethylenediamine derivatives in 10ml 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 appear, and keep warm for 30min Afterwards, centrifuge while hot, wash the solid matter with distilled water 3 times, and vacuum-dr...

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PUM

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Abstract

The invention discloses a method for preparing a flame-retardant and waterproof water-based polyurethane coating and an adhesive. In the presence of modified fullerene A, 1,4-bis(dimethylhydroxysilyl)benzene and isofor Mix ketone diisocyanate, add synergist and 2-butoxy-N-(2-diethylaminoethyl)-4-quinoline carboxamide hydrochloride, react at 70~80°C for 1~5h, Obtain polyurethane prepolymer A; add chain extender and solvent to prepolymer A, react at 60~80°C for 3~4h, add triethylamine for neutralization reaction for 30~60min, then add modified hypophosphorous acid Manganese solution, cocoic acid monoethanolamide and sulfaquinoxaline were reacted at 70°C for 1 hour, and water and sodium dodecylsulfonate were added to emulsify for 60 minutes to obtain flame-retardant and waterproof water-based polyurethane coatings and adhesives. The prepared flame-retardant and waterproof polyurethane coating and adhesive are environmentally friendly and low in price, and are widely used on walls, furniture, and surfaces of metal appliances, and are used as adhesives 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 polyu...

Claims

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Application Information

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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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