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One-component polyurethane adhesive and preparing method thereof

A polyurethane adhesive, one-component technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of performance degradation, poor water resistance and heat resistance, etc., to improve compatibility, improve Heat resistance and water resistance improvement effect

Inactive Publication Date: 2016-02-10
SUZHOU GAIDE FINE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the adhesive has certain defects: poor water resistance and heat resistance, and the performance decline is serious in hot and humid environments

Method used

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  • One-component polyurethane adhesive and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] One-component polyurethane adhesive, its components and parts by weight are: 45 parts of vegetable oil polyol, 23 parts of MDI, 0.1 part of triethanolamine, 12 parts of DIDP, 0.05 parts of organotin catalyst, 14 parts of chlorinated hydrocarbons, rosin glyceride 10 parts, 1.2 parts of trimethylolpropane, 7.5 parts of titanium diboride, 9.3 parts of PES.

[0027] The steps of its preparation method are as follows:

[0028] (1) Add the silane coupling agent to deionized water and stir evenly to obtain a coupling agent solution with a concentration of 12%. After adjusting the pH value to 3.2 with hydrochloric acid, add titanium diboride powder, and the silane coupling agent and diboride The weight ratio of the titanium powder is 1:24, put it into an ultrasonic cleaner for ultrasonic dispersion for 30 minutes, let it settle for 10 hours and then centrifuge it, wash the precipitate and dry it to a constant weight at 90°C, and grind it to obtain the modified titanium powder. ...

Embodiment 2

[0032] One-component polyurethane adhesive, its components and parts by weight are: 40 parts of vegetable oil polyols, 25 parts of MDI, 0.4 parts of triethanolamine, 10.5 parts of DINP, 0.06 parts of organotin catalysts, 11 parts of chlorinated hydrocarbons, rosin 8.5 parts of glyceride, 1.6 parts of trimethylolpropane, 7 parts of titanium diboride, 9.6 parts of PES.

[0033] The steps of its preparation method are as follows:

[0034] (1) Add the silane coupling agent to deionized water and stir evenly to obtain a coupling agent solution with a concentration of 12%. After adjusting the pH value to 3.2 with hydrochloric acid, add titanium diboride powder, and the silane coupling agent and diboride The weight ratio of the titanium powder is 1:24, put it into an ultrasonic cleaner for ultrasonic dispersion for 30 minutes, let it settle for 10 hours and then centrifuge it, wash the precipitate and dry it to a constant weight at 90°C, and grind it to obtain the modified titanium p...

Embodiment 3

[0038] One-component polyurethane adhesive, its components and parts by weight are: 60 parts of vegetable oil polyols, 20 parts of MDI, 0.2 parts of triethanolamine, 11.5 parts of DIDP, 0.04 parts of organic tin catalysts, 13 parts of chlorinated hydrocarbons, rosin 8.8 parts of glyceride, 1 part of trimethylolpropane, 6.5 parts of titanium diboride, 9 parts of PES.

[0039] The steps of its preparation method are as follows:

[0040] (1) Add the silane coupling agent to deionized water and stir evenly to obtain a coupling agent solution with a concentration of 12%. After adjusting the pH value to 3.2 with hydrochloric acid, add titanium diboride powder, and the silane coupling agent and diboride The weight ratio of the titanium powder is 1:24, put it into an ultrasonic cleaner for ultrasonic dispersion for 30 minutes, let it settle for 10 hours and then centrifuge it, wash the precipitate and dry it to a constant weight at 90°C, and grind it to obtain the modified titanium po...

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PUM

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Abstract

The invention provides a one-component polyurethane adhesive. The adhesive is prepared from, by weight, 40-60 parts of polyhydric alcohols, 20-25 parts of isocyanate, 0.1-0.6 part of chain extender, 9-12 parts of plasticizer, 0.01-0.1 part of catalyst, 10-15 parts of solvent, 8-10 parts of tackifier, 1-2 parts of cross-linking agent, 6-8 parts of titanium diboride and 9-10 parts of PES. The invention further provides a preparing method of the one-component polyurethane adhesive. The water resistance and heat resistance of the one-component polyurethane adhesive are high, and the one-component polyurethane adhesive is adaptable to a hygrothermal environment.

Description

Technical field: [0001] The invention relates to an adhesive, in particular to a one-component polyurethane adhesive and a preparation method thereof. Background technique: [0002] Polyurethane adhesives refer to adhesives containing carbamate groups (-NHCOO-) or isocyanate groups (-NCO) in the molecular chain. Polyurethane adhesives are divided into two categories: polyisocyanate and polyurethane. Polyisocyanate The molecular chain contains isocyano group (-NCO) and carbamate group (-NH-COO-), so the polyurethane adhesive shows a high degree of activity and polarity, and substrates containing active hydrogen, such as foam, Porous materials such as plastic, wood, leather, fabric, paper, ceramics, and materials with smooth surfaces such as metal, glass, rubber, plastic, etc. have excellent chemical adhesion. Polyurethane adhesives have excellent shear strength and impact resistance properties, are suitable for various structural bonding fields, and have excellent flexibilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/14C09J181/06C09J11/04C08G18/67C08G18/32C08G18/12
Inventor 李晓明
Owner SUZHOU GAIDE FINE MATERIALS CO LTD
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