Polyurethane adhesive main glue for compounding wall cloth, preparation method of polyurethane adhesive main glue and polyurethane adhesive

A technology of polyurethane adhesive and main glue, applied in the direction of polyurea/polyurethane adhesive, adhesive type, adhesive, etc. Wire and other problems, to achieve the effect of low cost, less glue wire, and short glue wire

Pending Publication Date: 2022-05-27
JIANGSU HUADA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polyurethane composite glue used for the compounding of wall covering fabrics is widely used to use aromatic polyurethane composite glue, such as polyurethane composite glue prepared with phthalic anhydride polyacids as the main raw material of small molecular polyacids. Low, so it is widely used. However, this kind of polyurethane composite glue generally has more glue threads, even when it is rolled up, there are many and long glue threads, so that the composite wall covering is not long in meters, and it is easy to appear. Broken wires lead to obvious glue spots after the wall covering is compounded and cured, which cannot be eliminated, causing the wall covering to be scrapped

Method used

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  • Polyurethane adhesive main glue for compounding wall cloth, preparation method of polyurethane adhesive main glue and polyurethane adhesive
  • Polyurethane adhesive main glue for compounding wall cloth, preparation method of polyurethane adhesive main glue and polyurethane adhesive
  • Polyurethane adhesive main glue for compounding wall cloth, preparation method of polyurethane adhesive main glue and polyurethane adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The present embodiment provides a two-liquid short wire polyurethane adhesive main adhesive for wall cloth composite, prepared by the following method:

[0044] Polyester polyol A with an average molecular weight of 3000 for 30 parts, polyester polyol B with an average molecular weight of 2500 for 35 parts, antioxidant 1010 for 0.1 parts, ethylene glycol for 0.1 parts, TMP for 0.05 parts were added to the reactor, turned on stirring, cooled to 55 °C, add DMC 15 parts, stirred for 30min, to ensure that the raw materials in the kettle have been completely stirred, maintain the reactor temperature of 55 °C, add TDI 5 parts. Heat up to 75 °C and stir for 1 h. Add 0.002 parts of the organic bismuth catalyst and heat up to 80 °C to continue the reaction. After gardner reaches W viscosity, turn off heating, add DMC 15 parts, 1,3-BG 0.1 parts, stir for 1 h. Packaged and discharged, sealed and stored.

[0045] In this example, the polyester polyol A is polyphthalic anhydride glycol ...

Embodiment 2

[0048] The present embodiment provides a two-liquid short wire polyurethane adhesive main adhesive for wall cloth composite, prepared by the following method:

[0049]Polyester polyol A with an average molecular weight of 2000 for 25 parts, polyester polyol B with an average molecular weight of 2500 for 2500 parts, antioxidant 1010 for 0.1 parts, ethylene glycol for 0.1 parts, TMP for 0.1 parts, open stirring, cool down to 55 °C, add DMC 15 parts, stir for 30 minutes, ensure that the raw materials in the kettle have been completely stirred, keep the reactor temperature at 55 °C, add TDI 5 parts. Heat up to 75 °C and stir for 1 h. Add 0.002 parts of the organic bismuth catalyst and heat up to 80 °C to continue the reaction. After gardner reaches W viscosity, turn off heating, add DMC 15 parts, 1,3-BG 0.1 parts, stir for 1 h. Packaged and discharged, sealed and stored.

[0050] In the present example, the polyester polyol A used, polyester polyol B used raw materials and the ratio o...

Embodiment 3

[0052] The present embodiment provides a two-liquid short wire polyurethane adhesive main adhesive for wall cloth composite, prepared by the following method:

[0053] Polyester polyol A with an average molecular weight of 2500 for 20 parts, polyester polyol B with an average molecular weight of 3000 for 45 parts, antioxidant 1010 for 0.1 parts, ethylene glycol for 0.1 parts, TMP for 0.15 parts added to the reactor, start stirring, cool down to 55 °C, add DMC 15 parts, stir for 30min, ensure that the raw materials in the kettle have been completely mixed, keep the reactor temperature at 55 °C, and add TDI 5 parts. Heat up to 75 °C and stir for 1 h. Add 0.002 parts of the organic bismuth catalyst and heat up to 80 °C to continue the reaction. After gardner reaches W viscosity, turn off heating, add DMC 15 parts, 1,3-BG 0.1 parts, stir for 1 h. Packaged and discharged, sealed and stored.

[0054] In the present example, the polyester polyol A used, polyester polyol B used raw materi...

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PUM

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Abstract

The invention relates to a polyurethane adhesive main glue for compounding wall cloth and a preparation method thereof and a polyurethane adhesive, the main glue raw material comprises a polyol component, the polyol component comprises a polyester polyol A and a polyester polyol B, the acid component of the polyester polyol A is selected from terephthalic acid, phthalic anhydride and isophthalic acid, and the acid component of the polyester polyol B is selected from terephthalic acid, phthalic anhydride and isophthalic acid. The alcohol component is selected from ethylene glycol, diethylene glycol, propylene glycol, butanediol and neopentyl glycol, and the molar ratio of the ethylene glycol to the alcohol component is (0.3-0.4): 1; the acid component of the polyester polyol B is a combination of one or more of terephthalic acid, phthalic anhydride and isophthalic acid and one or more of adipic acid, sebacic acid and succinic acid, the alcohol component of the polyester polyol B is a combination of ethylene glycol and one or more of diethylene glycol, propylene glycol, butanediol and neopentyl glycol, and the molar ratio of the ethylene glycol to the alcohol component is (0.3-0.4): 1. The adhesive disclosed by the invention is low in cost, and under the condition of using the same amount of adhesive, the composite strength of the wall cloth is high and the meter number of the wall cloth is longer.

Description

Technical field [0001] The present invention belongs to the technical field of di-liquid polyurethane adhesive, specifically relates to a polyurethane adhesive main adhesive for wall cloth composite and its preparation method and polyurethane adhesive. Background [0002] With the improvement of people's living standards, people's requirements for home improvement effects are getting higher and higher, among them, the use of wall cloth is becoming more and more extensive. In order to improve the effect of wall cloth attached to the wall, the current fabric must be composited. [0003] Now the most used is to use polyurethane composite adhesive to composite the wall cloth fabric, the liquid polyurethane composite rubber roller is applied to the base cloth, and the surface cloth is fitted and dried by the heating roller. Polyurethane composite adhesive for wall cloth fabric composite is widely used is the use of aromatic polyurethane composite adhesive, such as polyurethane composi...

Claims

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Application Information

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IPC IPC(8): C09J175/06C08G18/42
CPCC09J175/06C08G18/425C08G18/4202
Inventor 吕少波姜海龙梁高山訾少宝张泽绮王旭涛
Owner JIANGSU HUADA NEW MATERIAL CO LTD
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