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Aqueous polyurethane adhesive and application thereof

A water-based polyurethane and adhesive technology, applied in adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., to achieve good water resistance

Inactive Publication Date: 2016-11-02
NANJING JINGJINYUAN TECHN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many shortcomings, and various modifications are required to improve its functions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A water-based polyurethane adhesive, made of the following raw materials in parts by weight: 10 parts of modified polyurethane emulsion, 1 part of ACMO, 0.4 part of nano silicon dioxide, 0.01 part, 0.03 part of silicone defoamer, 0.02 part of Triton X-1000, 1 part of potassium persulfate. The particle size of nano silicon dioxide is between 50 and 100 nanometers.

[0020] The modified polyurethane emulsion is an acrylate modified polyurethane emulsion. The preparation method of the acrylate-modified polyurethane emulsion of the present invention is synthesized by a seed emulsion polymerization method, by using the PU emulsion as a seed, adding an acrylate monomer, and obtaining a PUA composite emulsion with a core-shell structure through radical emulsion polymerization.

[0021] The preparation process of the water-based polyurethane adhesive of the present invention is as follows: add the above-mentioned raw materials successively into a constant temperature sealed h...

Embodiment 2

[0023] A water-based polyurethane adhesive, made of the following raw materials in parts by weight: 10-60 parts of modified polyurethane emulsion, 1-50 parts of TMPTA, 0.4-40 parts of nano silicon dioxide, 0.01-15 parts, silicone defoamer 0.03-15 parts, OP-10 0.02-6 parts, ammonium persulfate 0-90 parts.

[0024] The modified polyurethane emulsion is an acrylate modified polyurethane emulsion. The preparation method of the acrylate-modified polyurethane emulsion of the present invention is synthesized by a seed emulsion polymerization method, by using the PU emulsion as a seed, adding an acrylate monomer, and obtaining a PUA composite emulsion with a core-shell structure through radical emulsion polymerization.

[0025] The particle size of nano silicon dioxide is between 50 and 100 nanometers.

[0026] The preparation process of the water-based polyurethane adhesive of the present invention is as follows: add the above-mentioned raw materials successively into a constant te...

Embodiment 3

[0028] A water-based polyurethane adhesive, made of the following raw materials in parts by weight: 10-60 parts of modified polyurethane emulsion, 1-50 parts of TPGDA, 0.4-40 parts of nano silicon dioxide, 0.01-15 parts, silicone defoamer 0.03-15 parts, NP-10 0.02-6 parts, potassium persulfate 0-90 parts.

[0029] The modified polyurethane emulsion is an acrylate modified polyurethane emulsion. The preparation method of the acrylate-modified polyurethane emulsion of the present invention is synthesized by a seed emulsion polymerization method, by using the PU emulsion as a seed, adding an acrylate monomer, and obtaining a PUA composite emulsion with a core-shell structure through radical emulsion polymerization.

[0030] The particle size of nano silicon dioxide is between 50 and 100 nanometers.

[0031] The preparation process of the water-based polyurethane adhesive of the present invention is as follows: add the above-mentioned raw materials successively into a constant t...

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PUM

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Abstract

The invention discloses an aqueous polyurethane adhesive. The adhesive is prepared from, by weight, 10-60 parts of a modified polyurethane emulsion, 1-50 parts of UV dilution monomers, 0.4-40 parts of nano-silica, 0.01-15 parts of an organosilicon leveling agent, 0.03-15 parts of an organosilicon antifoaming agent, 0.02-6 parts of an emulsifier, and 1-90 parts of an initiator. The invention also discloses an application of the aqueous polyurethane adhesive in the preparation of fine chemical engineering products. The aqueous polyurethane adhesive is mainly used in the preparation of fine chemical engineering products, and has the advantages of good water resistance, no toxicity, odorlessness, and high safety and convenience.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a water-based polyurethane adhesive and its application. Background technique [0002] Polyurethane adhesives have the advantages of adjustable hardness, low temperature resistance, good flexibility, and high bonding strength. They can bond metals, non-metals and other materials, and their uses are becoming more and more extensive. However, at present, the entire polyurethane adhesive industry is still dominated by solvent-based. [0003] With the strengthening of people's safety and environmental awareness, the research on waterborne polyurethane adhesives has developed rapidly. Waterborne polyurethane adhesive refers to the adhesive formed by dissolving polyurethane in water or dispersing it in water. Compared with solvent type, it has no solvent, no pollution, good film forming property, strong adhesion, and other polymers especially It is an emulsion polymer t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/04C09J11/06
CPCC09J4/06C09J11/04C09J11/06C08F283/008
Inventor 孔小寅潘文强傅发祥
Owner NANJING JINGJINYUAN TECHN IND