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Polyurethane coating layer for aircraft organic glass, and preparation method thereof

A polyurethane coating and plexiglass technology, applied in polyurea/polyurethane coatings, coatings, chemical instruments and methods, etc., can solve the problems of inability to meet the needs of use, cracking and peeling of coatings, inability to prevent static electricity, etc. Excellent weather resistance, extended service life, and the effect of increasing speed

Active Publication Date: 2019-08-06
JIANGSU IRON ANCHOR GLASS LTD BY SHARE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing wear-resistant coatings for aircraft glass are silica-based. This type of coating has high hardness and good wear resistance, but its thickness is only 3-5 microns, which cannot withstand the impact of raindrops during high-speed flight of military aircraft. , the impact of raindrops will cause the coating to crack and peel off, and this type of coating is not anti-static, the service life will be reduced, and it cannot meet the actual use needs

Method used

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  • Polyurethane coating layer for aircraft organic glass, and preparation method thereof
  • Polyurethane coating layer for aircraft organic glass, and preparation method thereof
  • Polyurethane coating layer for aircraft organic glass, and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0039] A polyurethane coating for aircraft plexiglass, in percentage by weight, comprising the following components after mixing the raw materials to form a solution, which is made after coating and curing:

[0040] The proportion of the solution is: 10% isocyanate, 5% diol, 15% triol, 0.0005% catalyst, 0.015% antistatic agent, 0.035% surfactant, 0.5% antioxidant, 1% ultraviolet absorber, fluid Leveling agent 0.3%, surplus are organic solvents, and the preparation method of solution comprises the following steps:

[0041] Step 1. Add isocyanate, diol, surfactant, and antistatic agent into the flask, put it in an oil bath, heat and stir, set the temperature at 80°C, until the solution is transparent and clear;

[0042] Step 2: Add trihydric alcohol, leveling agent, UV absorber, and antioxidant into another flask, heat and stir in an oil bath, and put in an appropriate amount of rotary spray balls at the same time, set the temperature at 90°C until all dissolved;

[0043] The ...

Embodiment 2

[0051] A polyurethane coating for aircraft plexiglass, in percentage by weight, comprising the following components after mixing the raw materials to form a solution, which is made after coating and curing:

[0052] The proportion of the solution is: 12% isocyanate, 4% diol, 18% triol, 0.0005% catalyst, 0.015% antistatic agent, 0.035% surfactant, 0.5% antioxidant, 1% ultraviolet absorber, fluid Leveling agent 0.3%, surplus are organic solvents, and the preparation method of solution comprises the following steps:

[0053] Step 1. Add isocyanate, diol, surfactant, and antistatic agent into the flask, put it into an oil bath, heat and stir, set the temperature at 85°C, until the solution is transparent and clear;

[0054] Step 2. Add trihydric alcohol, leveling agent, UV absorber and antioxidant into another flask, heat and stir in an oil bath, and add an appropriate amount of rotary spray ball at the same time, set the temperature at 90°C until all dissolve;

[0055] The rota...

Embodiment 3

[0063] A polyurethane coating for aircraft plexiglass, in percentage by weight, comprising the following components after mixing the raw materials to form a solution, which is made after coating and curing:

[0064] The proportion of the solution is: 15% of isocyanate, 5% of diol, 19% of triol, 0.0005% of catalyst, 0.015% of antistatic agent, 0.035% of surfactant, 0.5% of antioxidant, 1% of ultraviolet absorber, fluid Leveling agent 0.3%, surplus are organic solvents, and the preparation method of solution comprises the following steps:

[0065] Step 1. Add isocyanate, diol, surfactant, and antistatic agent into the flask, put it in an oil bath, heat and stir, set the temperature at 80°C, until the solution is transparent and clear;

[0066] Step 2. Add trihydric alcohol, leveling agent, UV absorber and antioxidant into another flask, heat and stir in an oil bath, and add an appropriate amount of rotary spray ball at the same time, set the temperature at 90°C until all dissol...

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Abstract

The invention discloses a polyurethane coating layer for aircraft organic glass, and a preparation method thereof, and belongs to the technical field of polyurethane coating layers. The polyurethane coating layer for aircraft organic glass is prepared by mixing raw materials to form a solution, spraying the solution and curing the solution, and the raw materials of the solution comprise 10-15% ofan isocyanate, 3-5% of a diol, 15-20% of a triol, 0.0005% of a catalyst, 0.015% of an antistatic agent, 0.035% of a surfactant, 0.5% of an antioxidant, 1% of an ultraviolet absorber, 0.3% of a leveling agent and 50-70% of an organic solvent. The preparation method of the solution comprises the following steps: 1, adding the isocyanate, the diol, the surfactant and the antistatic agent into a flask. The coating layer has good wear resistance, makes the thickness of a dry film reach 76 [mu]m, has the advantages of high elongation at break, god resistance to impact of raindrops, and excellent weather resistance, and can greatly enhance the wear resistance of aircraft organic glass and prolong the service life of the aircraft organic glass.

Description

technical field [0001] The invention relates to the technical field of polyurethane coatings, in particular to a polyurethane coating for aircraft plexiglass and a preparation method thereof. Background technique [0002] Aircraft windshields used flat annealed glass in the 1920s, curved composite glass in the 1930s, cellulose ester as the intermediate layer, heat-tempered glass in the 1940s, and polyvinyl butyral as the intermediate layer, and adopted after the 1950s. Plexiglass or tempered glass-multilayer plastic composite structure windshield. Plexiglass is a popular name, abbreviated as PMMA. The chemical name of this polymer transparent material is polymethyl methacrylate, which is a polymer compound formed by the polymerization of methyl methacrylate. It is an important thermoplastic that was developed earlier. Aviation plexiglass refers to an organic transparent structural material used in aircraft canopies, windshields, cabins, portholes, etc.; it is a plate-shap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D7/48B01J19/14B01J19/24B01F33/40
CPCC09D175/04C09D7/48B01J19/14B01J19/2405
Inventor 吴贲华孙钰晶高国忠袁厚呈冯飞刘成彬陈勇张素梅
Owner JIANGSU IRON ANCHOR GLASS LTD BY SHARE LTD
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