Flame-retardant waterborne polyurethane adhesive and preparation method thereof

A technology of water-based polyurethane and flame-retardant adhesive, applied in polyurea/polyurethane adhesives, adhesives, adhesive additives, etc., can solve problems affecting biological growth and human health, aromatic hydrocarbon solvents are highly toxic, and pollute the atmosphere. Application prospects and economic benefits, excellent mechanical properties, and the effect of increasing crosslinking density

Inactive Publication Date: 2019-10-22
苏晓辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These volatile substances are discharged into the atmosphere, which is very harmful, and some of them undergo photochemical action to generate ozone. The ozone in the lower space pollutes the atmosphere and affects the growth of organisms and human health. Some halogenated hydrocarbon solvents are harmful to the atmosphere. Substances of the ozone layer
Some aromatic hydrocarbon solvents are very toxic and even carcinogenic

Method used

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  • Flame-retardant waterborne polyurethane adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A water-based polyurethane flame-retardant adhesive prepared from the following raw materials in weight fraction:

[0029] 32 parts of isophorone diisocyanate, 13 parts of toluene-2,4-diisocyanate, 8 parts of polybutylene adipate, 25 parts of 2,2-bis(hydroxymethyl)propionic acid, polytetrahydrofuran ether two 14 parts of alcohol, 1 part of trimethylolpropane, 0.3 part of dibutyltin dilaurate, 0.1 part of stannous octoate, 6 parts of diethylene glycol, 4 parts of bismaleimide, 10 parts of acetone, triethanolamine 2 parts, 7 parts of sodium-based montmorillonite, 18 parts of melamine-coated ammonium polyphosphate, 3 parts of plasticizer di-n-octyl phthalate, organic bentonite and polyamide wax in a mass ratio of 1:1 2 parts of thixotropic agent and 12 parts of deionized water.

[0030] The preparation method of melamine-coated ammonium polyphosphate is as follows:

[0031] Add melamine resin to deionized water, heat up to 45°C and stir to dissolve, then add phosphoric acid wit...

Embodiment 2

[0037] A water-based polyurethane flame-retardant adhesive prepared from the following raw materials in weight fraction:

[0038] 40 parts of isophorone diisocyanate, 16 parts of toluene-2,4-diisocyanate, 5 parts of polybutylene adipate, 22 parts of 2,2-bis(hydroxymethyl)propionic acid, polytetrahydrofuran ether two 16 parts of alcohol, 1.5 parts of trimethylolpropane, 0.4 parts of dibutyltin dilaurate, 0.1 part of stannous octoate, 5 parts of diethylene glycol, 3 parts of bismaleimide, 13 parts of acetone, triethanolamine 1 part, 8 parts of sodium-based montmorillonite, 18 parts of melamine-coated ammonium polyphosphate, 3 parts of plasticizer dicyclohexyl phthalate, organic bentonite and polyamide wax at a mass ratio of 1:1 3 parts of thixotropic agent and 12 parts of deionized water.

[0039] The preparation method of melamine-coated ammonium polyphosphate is as follows:

[0040] Add melamine resin to deionized water, heat up to 40°C and stir to dissolve, add phosphoric acid wit...

Embodiment 3

[0046] A water-based polyurethane flame-retardant adhesive prepared from raw materials with the following weight fractions:

[0047] 35 parts of isophorone diisocyanate, 16 parts of toluene-2,4-diisocyanate, 5 parts of polybutylene adipate, 25 parts of 2,2-bis(hydroxymethyl)propionic acid, polytetrahydrofuran ether two 12 parts of alcohol, 1 part of trimethylolpropane, 0.1 part of dibutyltin dilaurate, 0.2 part of stannous octoate, 5 parts of diethylene glycol, 2 parts of bismaleimide, 20 parts of acetone, triethanolamine 1 part, 8 parts of sodium-based montmorillonite, 18 parts of melamine-coated ammonium polyphosphate, 2 parts of plasticizer butyl benzyl phthalate, organic bentonite and polyamide wax in a mass ratio of 1:1 2 parts of thixotropic agent and 14 parts of deionized water.

[0048] The preparation method of melamine-coated ammonium polyphosphate is as follows:

[0049] Add the melamine resin to deionized water, heat up to 40°C and stir to dissolve, add phosphoric acid ...

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Abstract

The invention provides a flame-retardant waterborne polyurethane adhesive and a preparation method thereof, and relates to the field of adhesives. The flame-retardant waterborne polyurethane adhesiveis prepared from the following raw materials in parts by weight: 30-40 parts of isophorone diisocyanate, 10-18 parts of toluene-2,4-diisocyanate, 5-10 parts of polybutylene adipate, 20-30 parts of 2,2-bis(hydroxymethyl) propylene acid, 12-16 parts of polytetrahydrofuran ether glycol, 1-1.5 parts of trimethylolpropane, 0.1-0.5 part of dibutyltin dilaurate, 0.1-0.5 part of stannous octoate, 4-8 parts of diethylene glycol, 2-5 parts of bismaleimide, 10-20 parts of acetone, 1-2 parts of triethanolamine, 6-10 parts of Na-montmorillonite, 15-23 parts of melamine coated ammonium polyphosphate, 2-3 parts of a plasticizer, 1-3 parts of a thixotropic agent and 10-15 parts of deionized water. The flame-retardant waterborne polyurethane adhesive has excellent mechanical properties and a high flame-retardant grade, so that the flame-retardant waterborne polyurethane adhesive has a broad application prospect and economic benefits.

Description

Technical field [0001] The invention relates to the field of adhesives, in particular to an aqueous polyurethane flame-retardant adhesive and a preparation method thereof. Background technique [0002] Gluing (adhesive, bonding, gluing, gluing) refers to the technology of connecting the surfaces of homogeneous or heterogeneous objects with adhesives. It has the characteristics of continuous stress distribution, light weight, or sealing, and low temperature in most processes. . Gluing is especially suitable for the connection of different materials, different thicknesses, ultra-thin specifications and complex components. Adhesive has the fastest development in the near-generation and has a wide range of applications. There are many classification methods for adhesives. According to the application method, it can be divided into thermosetting, hot melt, room temperature curing, pressure sensitive, etc.; according to the application object, it can be divided into structural, non-c...

Claims

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Application Information

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IPC IPC(8): C09J175/08C09J175/06C09J11/04C08G18/66C08G18/75C08G18/73C08G18/48C08G18/42C08G18/34C08G18/32
CPCC08G18/3206C08G18/348C08G18/4238C08G18/4854C08G18/6607C08G18/6611C08G18/6625C08G18/73C08G18/755C08K2003/323C08L2201/02C09J11/04C09J175/06C09J175/08C08L77/00C08K13/06C08K9/10C08K3/32C08K3/346C08K5/12
Inventor 苏晓辉
Owner 苏晓辉
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