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Double-component water-based polyurethane adhesive and preparation method thereof

A water-based polyurethane and adhesive technology, applied in the field of polymer materials, can solve problems such as hazards, fire hazards, operator health, environmental pollution, etc., and achieve the effects of labor and other costs reduction, excellent bonding strength, and comprehensive cost reduction.

Inactive Publication Date: 2014-12-10
YANTAI LIANCHENG POLYMER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, an object of the present invention is to propose a two-component water-based polyurethane adhesive, which overcomes the problems of environmental pollution, fire hazards and health hazards for operators in common organic solvent-based shoe glues.

Method used

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  • Double-component water-based polyurethane adhesive and preparation method thereof
  • Double-component water-based polyurethane adhesive and preparation method thereof
  • Double-component water-based polyurethane adhesive and preparation method thereof

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preparation example Construction

[0036] The preparation method of two-component waterborne polyurethane adhesive of the present invention may further comprise the steps:

[0037] Preparation of the first component: put the water-based polyurethane emulsion into the stainless steel high-speed dispersion kettle, adjust the speed to 200 rpm, drop the defoamer, and stir for 5 minutes at the speed; add the wetting agent, stirred at the rotating speed for 10 minutes; put in the polyurethane thickener, adjust the rotating speed to 300 rpm, and stir for 40 minutes to obtain the first component;

[0038] Preparation of the second component: Add a certain amount of the first component into a stainless steel stirrer, add the curing agent in proportion, and stir for 5-15 minutes at a rotation speed of 200 rpm.

[0039] The dosages used in the two-component preparation are all added according to the above mass ratio.

Embodiment 1

[0041] Embodiment 1 A kind of preparation method of water-based polyurethane adhesive comprises the following technical process:

[0042] Preparation of the first component: put U54 (Bayer, Germany) with a mass ratio of 100 and a solid content of 50% into a 1-ton stainless steel high-speed dispersion kettle, adjust the speed to 200 rpm, and slowly drop in BYK with a mass ratio of 0.05 -024 (commercially available, German Bick) defoamer, stirred at 200 rpm for 5 minutes, slowly added with a mass ratio of 0.1 Wet KL245 (commercially available, Tego, Germany) wetting agent, stirred at 200 rpm for 10 minutes, put in PUR-40 (commercially available, Germany Hemings) thickener with a mass ratio of 0.08, and adjusted the rotating speed to 300 rpm / minute, and stirred for 40 minutes, filtered, and packaged for use.

[0043]According to the usage requirement, add a certain amount of the above-mentioned first component into the stainless steel agitator, adjust the rotating speed to 20...

Embodiment 2

[0044] Embodiment 2 A kind of preparation method of water-based polyurethane adhesive comprises the following technical process:

[0045] Preparation of the first component: Put a self-made anionic aliphatic water-based polyurethane emulsion with a mass ratio of 100 and a solid content of 45% into a 1-ton stainless steel high-speed dispersion kettle, adjust the speed to 200 rpm, and slowly drop in a mass ratio of 0.03 TEGO Foamex825 (commercially available, Dego, Germany) defoamer, stirred at 200 rpm for 5 minutes, slowly added BYK-301 (commercially available, Germany Bicker) wetting agent with a mass ratio of 0.25, and stirred at 200 rpm Stir for 10 minutes, add TEGO ViscoPlus3030 (commercially available, Tego, Germany) thickener with a mass ratio of 0.3, adjust the speed to 300 rpm, and stir for 40 minutes, filter, and pack for use.

[0046] According to the usage requirement, add a certain amount of the above-mentioned first component into the stainless steel stirrer, adjus...

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Abstract

The invention provides a double-component water-based polyurethane adhesive and a preparation method thereof, belonging to the technical field of high polymer materials. The double-component water-based polyurethane adhesive comprises a first component and a second component. The first component comprises the following components in parts by mass: 100 parts of water-based polyurethane emulsion, 0.01-0.1 part of defoaming agent, 0.05-0.5 part of wetting agent and 0.05-0.5 part of thickener. The second component comprises the following component in parts by mass: 2-10 parts of curing agent. When the double-component water-based polyurethane adhesive is in use, the first component and second component are compounded according to the mass ratio. The invention also provides a preparation method of the double-component water-based polyurethane adhesive. The double-component water-based polyurethane adhesive solves the problems of environmental pollution, fire hazard and health hazard to operating personnel in the common organic-solvent-type glue for shoes, and has the advantages of excellent binding strength, excellent heat resistance and excellent moisture resistance. The water-based polyurethane adhesive is composed of double components; the first component is packaged after being prepared; and when the water-based polyurethane adhesive is in use, the second component is added according to the use amount, thereby reducing the excess waste of the water-based polyurethane adhesive.

Description

technical field [0001] The invention relates to a two-component water-based polyurethane adhesive and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] China is a big country in the shoe-making industry, and the output of shoe-making has reached 20 billion pairs. As a labor-intensive shoe-making industry, solvent-based shoe glue still dominates the country. Because most organic solvents are flammable, and most organic mixtures will cause air pollution and smog generation, when the content in the air reaches a certain level, it is easy to be ignited or cause an explosion; and in the environment of volatile solvents, not only cause Staff are mentally fatigued, and more seriously, it is easy to cause serious occupational diseases, and even bring serious harm to the next generation of female workers, and the cost of materials and labor is high, and the overall cost is high. Invention content: [0003] In view of...

Claims

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Application Information

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IPC IPC(8): C09J175/04C09J175/06
Inventor 李革王成忠徐德胜李诣文吕宁华
Owner YANTAI LIANCHENG POLYMER MATERIAL
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