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A kind of nano Al2O3 modified polyurethane resin coating and preparation method thereof

A polyurethane resin and coating technology, which is applied in the field of nano-Al2O3 modified polyurethane resin coating and its preparation, can solve the problems of poor stability of resin emulsion, poor gloss and color retention, and high construction requirements, so as to improve adhesion, flexibility, and interface Effects of improved binding and enhanced affinity

Active Publication Date: 2018-07-06
广州市百舜合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyurethane resin coatings are obviously superior to other coatings. The advantages of polyurethane coatings are strong wear resistance of the paint film, good decorative performance, strong adhesion of the coating film, high elasticity of the coating film, strong corrosion resistance of the coating film, and a wide range of drying temperatures. Wide, outstanding high temperature and low temperature resistance, excellent insulation performance, and many varieties of designs and colors, but it also has obvious disadvantages, such as poor gloss and color retention, poor stability of resin emulsion, easy to damage the coating, and high construction requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0014] Nano Al of the present invention 2 o 3 The preparation method of the modified polyurethane resin coating is as follows, first Al 2 o 3 The surface modification of nano powder is carried out as follows:

[0015] 1) A certain amount of sodium stearate (Stearic acid Sodium Salt, referred to as SASS) is dissolved in ethanol and acetone mixed solution to form a primary mixed solution;

[0016] 2) Weigh quantitative Al 2 o 3 Nano powder is added in the three-mouth container, and an appropriate amount of sodium stearate mixed solution is added in the three-mouth container to form a suspension solution;

[0017] 3) The suspension is heated at 50-60°C for a certain period of time under magnetic stirring, and then suction-filtered, and the obtained product is dried at 50°C for 18-24h to obtain the modified Al 2 o 3 Nano powder;

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Abstract

The invention discloses nano Al2O3 modified polyurethane resin coating.The nano Al2O3 modified polyurethane resin coating is prepared by, by weight, 60-80 parts of toluene diisocyanate, 5-10 parts of dicyclohexyl methane diisocyanate, 5-10 parts of hexamethylene diisocyanate, 4-8 parts of adipic acid, 1-5 parts of alkyd resin, 2-4 parts of epoxy resin, 1-3 parts of propylene glycol, 1-3 parts of methyl diethanolamine, 1-4 parts of diester acid dibutyl tin, 5-10 parts of acetic ether, 0.5-1 part of phosphoric acid, 10-30 parts of deionized water and 2-8 parts of nano Al2O3 slurry.The nano Al2O3 modified polyurethane resin coating has the advantages the modified Al2O3 nano powder is added during the polyurethane resin coating preparation process, sodium stearate is used to perform surface oleophylic treatment on Al2O3 nano powder so as to form an effective anticorrosion composite coating, and the coating is excellent in oil resistance, sea water resistance, wear resistance, impact resistance and the like.

Description

technical field [0001] The present invention relates to a kind of nano Al 2 o 3 A modified polyurethane resin coating and a preparation method thereof belong to the technical field of material coating coating. Background technique [0002] Polyurethane resin (Polyurethane Resin), as a high-strength, tear-resistant, wear-resistant polymer material, is widely used in daily life, industrial and agricultural production, medicine and other fields. In addition, polyurethane can also be made into emulsion, magnetic materials, etc. Polyurethane resin coatings are obviously superior to other coatings. The advantages of polyurethane coatings are strong wear resistance of the paint film, good decorative performance, strong adhesion of the coating film, high elasticity of the coating film, strong corrosion resistance of the coating film, and a wide range of drying temperatures. Wide, high temperature and low temperature resistance, excellent insulation performance, and many varieties...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/06C09D7/62C09D5/08C08G18/66C08G18/42C08G18/58C08G18/32
CPCC08G18/3206C08G18/4288C08G18/58C08G18/664C08K3/22C08K5/098C08K9/04C08K2003/2227C08K2201/011C09D5/08C09D7/62C09D175/06
Inventor 董晓娜
Owner 广州市百舜合成材料有限公司