Polymer waterborne polyurethane coating and preparation method thereof

A water-based polyurethane and polymer technology, used in polyurea/polyurethane coatings, antifouling/underwater coatings, coatings, etc., can solve the problems of affecting the use effect, easy to be polluted, and weak anti-ultraviolet aging ability of water-based polyurethane film. , to achieve the effect of improving stability and improving dispersibility

Inactive Publication Date: 2016-09-07
李强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-based polyurethane film has weak anti-ultraviolet a

Method used

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Embodiment Construction

[0022] A kind of macromolecule waterborne polyurethane coating, it is made up of the raw material of following weight portion:

[0023] Konjac glucomannan 0.1, ascorbic acid 0.1, titanium tetrachloride 10, ferric chloride hexahydrate 0.3, 28% hydrogen peroxide solution 30, polyεcaprolactone diol 600, isophorone diisocyanate 470, Acetone 20, dimethylolpropionic acid 13, diethylene glycol 4, stannous octoate 0.1, triethylamine 5, polyether glycol 1, sodium polyacrylate 1.4, potassium perfluorobutyl sulfonate 0.4, octadecane Base isocyanate 0.07, titanium dioxide 2, n salicylanilide 0.2.

[0024] A kind of preparation method of described macromolecule water-based polyurethane paint, comprises the following steps:

[0025] (1) Add the above-mentioned sodium polyacrylate into deionized water 20 times its weight, stir evenly, add the above-mentioned konjac glucomannan, raise the temperature to 70°C, keep stirring for 7 minutes, cool to room temperature, and obtain a polymer solutio...

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PUM

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Abstract

The invention discloses a polymer waterborne polyurethane coating. The polymer waterborne polyurethane coating is composed of the following raw materials in parts by weight: 0.1 to 0.3 part of konjac glucomannan, 0.1 to 0.3 part of ascorbic acid, 10 to 14 parts of titanium tetrachloride, 0.3 to 0.7 part of hexahydrated ferric chloride, 30 to 40 parts of a hydrogen peroxide solution with a concentration of 28 to 30%, 600 to 700 parts of poly epsilon-caprolactone glycol, 470 to 500 parts of isophorone diisocyanate, 20 to 30 parts of acetone, 13 to 20 parts of dimethylolpropionic acid, 4 to 6 parts of diethylene glycol, 0.1 to 0.16 part of stannous octoate, 5 to 7 parts of triethylamine, 1 to 3 parts of polyether glycol, 1.4 to 2 parts of sodium polyacrylate, 0.4 to 1 part of potassium perfluorobutanesulfonate, 0.07 to 0.1 part of octadecyl isocyanate, 2 to 4 parts of titanium dioxide and 0.2 to 0.6 part of n-salicylanilide. The coating provided by the invention is added with polymer materials like sodium polyacrylate, so the dispersity of nano-sized molecules in the polymer is effectively improved, and the stability of a finished coating film is enhanced.

Description

technical field [0001] The invention relates to the technical field of water-based polyurethane coatings, in particular to a polymer water-based polyurethane coating and a preparation method thereof. Background technique [0002] Water-based polyurethane uses water as the dispersion medium. Compared with traditional solvent-based polyurethane, it has the advantages of environmental protection, non-flammability, and non-toxicity. It is widely used in coatings, adhesives, leather finishes, and textile industries. However, the water-based polyurethane film has weak anti-ultraviolet aging ability and is easily polluted, which affects its use effect. Studies have shown that nanocomposites modified by inorganic nanoparticles not only have the properties of polymers such as ductility and elasticity, but also exhibit the properties of the added inorganic materials. Nano-titanium dioxide (TiO2) is an important inorganic semiconductor material, which has excellent properties such as ...

Claims

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Application Information

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IPC IPC(8): C09D175/06C09D7/12C09D5/16C08G18/75C08G18/71C08G18/66C08G18/48C08G18/42C08G18/32
CPCC08G18/3206C08G18/348C08G18/4277C08G18/48C08G18/71C08G18/755C08K2201/011C08L2201/08C08L2205/03C09D5/1618C09D5/1662C09D5/1687C09D175/06C08L33/02C08L5/02C08K13/02C08K2003/2241
Inventor 李强
Owner 李强
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