Water-based negative oxygen ion polyurethane adhesive and its preparation method and application
A polyurethane adhesive, negative oxygen ion technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, non-polymer adhesive additives, etc., can solve the problems of low viscosity, poor water resistance, etc., to improve the environment, good water resistance , the effect of good wear resistance and adhesion
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0109] In a preferred embodiment of the present invention, the preparation method of aqueous hydroxyacrylic acid dispersion comprises the steps:
[0110] (1) Methyl methacrylate, n-butyl acrylate and hydroxybutyl methacrylate are mixed evenly and dissolved in an organic solvent, and made into a solution, adding tert-butyl benzyl peroxide as an initiator, adding twelve Alkyl mercaptan is used as a chain transfer agent, kept for 1h, then added acrylic acid, kept for 2h, to obtain the acrylic acid dispersion precursor;
[0111] (2) Add the precursor of the acrylic acid dispersion into dimethylethanolamine, mix and stir for 1 hour, and obtain the acrylic acid dispersion after purification.
[0112] According to another aspect of the present invention, the present invention also provides the preparation method of above-mentioned waterborne negative oxygen ion polyurethane adhesive, comprises the steps:
[0113] (a) Mix carbon dioxide copolymer polyol, polyether polyol, castor oil,...
Embodiment 1
[0134] The present embodiment provides a water-based negative ion polyurethane adhesive, which is prepared from the following raw materials in parts by mass: 70 parts of polypropylene carbonate diols, 30 parts of polyoxypropylene diols, 25 parts of castor oil, Mix 10 parts of hexamethylene diisocyanate, 60 parts of isophorone diisocyanate, 6 parts of sodium ethylenediaminoethanesulfonate and 1 part of stannous octoate, heat up to 70°C, and react for 4 hours to obtain prepolymerized adhesive body; lower the temperature to 20°C, add 10 parts of acetone to reduce the viscosity, then add 4 parts of negative oxygen ion powder and mix evenly, and finally add 1 part of ethylenediamine and 300 parts of deionized water to emulsify for 5 hours to obtain a water-based negative oxygen ion polyurethane adhesive agent;
[0135] Among them, the negative oxygen ion powder is composed of the following components by mass percentage: 30% aluminum oxide, 40% silicon dioxide, 8% boron trioxide, 6%...
Embodiment 2
[0138] The present embodiment provides a water-based negative ion polyurethane adhesive, which is prepared from the following raw materials in parts by mass: 50 parts of polypropylene carbonate diols, 30 parts of polyoxypropylene triols, 15 parts of castor oil, Mix 20 parts of hexamethylene diisocyanate, 40 parts of isophorone diisocyanate, 20 parts of ethylene dimethylol butyric acid and 0.01 part of N-methylmorpholine, heat up to 85°C, and react for 1 hour to obtain an adhesive Prepolymer: lower the temperature to 40°C, add 10 parts of acetone to reduce the viscosity, then add 8 parts of negative oxygen ion powder and mix evenly, and finally add 10 parts of trimethylhexamethylenediamine and 200 parts of deionized water to emulsify for 2 hours to obtain a water-based negative ion powder. Oxygen ion polyurethane adhesive;
[0139] Among them, the negative oxygen ion powder is composed of the following components by mass percentage: 40% aluminum oxide, 30% silicon dioxide, 14% ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| hydroxyl value | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| particle diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More