Polyurethane mirror surface coating and preparation method thereof

Abstract

The invention discloses polyurethane mirror surface coating. The polyurethane mirror surface coating is composed of a component a and a curing agent component in a weight ratio of (3-4):1. Butylmercaptooxo stannane, stannous sulfide, ricinoleic acid and the like added in the polyurethane mirror surface coating can effectively improve stability and strength of the finished product film, and modification of a monomer through esterification improves the viscosity of the polymer finished product, improves anti-peel strength between the film and a base material, and enhances adhesion.

Description

technical field

[0001] The invention belongs to the field of coatings, in particular to a polyurethane mirror coating and a preparation method thereof. Background technique

[0002] With the development of the electronics industry, especially the promotion and application of smart phones, large-screen TVs, and smart tablet computers, these products have now entered thousands of households and companies around the world. However, with the promotion of various touch screen technologies, due to the high-frequency use of these products, the display surface of the product is easy to get dirty, scratched, and corroded by some chemical solvents. Therefore, the waterproof, anti-fouling, and anti-chemical agents of these products are improved. , Improving wear resistance, etc. are very necessary. At present, in the protection of electronic product display screens, many people use the method of sticking film, but this method has general effects and is also very limited, especially for...

Examples

Embodiment 1

[0029] A polyurethane mirror coating, which is composed of a component and a curing agent component in a weight ratio of 4:1.

[0030] Described a component is made up of the raw material of following weight part:

[0031] Polycarbonate diol 105, dicumyl peroxide 3, benzotriazepam 1, terpineol 5, diisopropylethanolamine 2, oleic acid 4, N-methylpyrrolidone 14, butyltin mercaptide 1 , modified esterification monomer 120, stannous sulfide 0.2, diatomaceous earth 5.

[0032] Described modified esterification monomer is made up of the raw material of following weight part:

[0033] Isophorone diisocyanate 110, ricinoleic acid 3, sorbitan monooleate 1, dodecyl mercaptan 15, nonylphenol 0.2;

[0034] The preparation method comprises the following steps:

[0035] (1) Take dodecyl mercaptan, heat it to 70°C, add nonylphenol, keep stirring for 20 minutes, add ricinoleic acid, raise the temperature to 90°C, keep stirring for 2 hours, and obtain an esterification solution;

[0036] (...

Embodiment 2

[0045] A polyurethane mirror coating, which is composed of a component and a curing agent component in a weight ratio of 3:1.

[0046] Described a component is made up of the raw material of following weight part:

[0047] Polycarbonate diol 100, dicumyl peroxide 3, benzotriazole 0.7, terpineol 3, diisopropylethanolamine 1, oleic acid 2, N-methylpyrrolidone 10, butyltin mercaptide 0.5, modified esterification monomer 110, stannous sulfide 0.1, diatomaceous earth 4.

[0048] Described modified esterification monomer is made up of the raw material of following weight part:

[0049] Isophorone diisocyanate 100, ricinoleic acid 2, sorbitan monooleate 0.5, dodecyl mercaptan 10, nonylphenol 0.1;

[0050] The preparation method comprises the following steps:

[0051] (1) Take dodecyl mercaptan, heat it to 60°C, add nonylphenol, keep stirring for 10 minutes, add ricinoleic acid, raise the temperature to 80°C, keep stirring for 1 hour, and obtain an esterification solution;

[0052] ...

technical field

[0001] The invention belongs to the field of coatings, in particular to a polyurethane mirror coating and a preparation method thereof. Background technique

[0002] With the development of the electronics industry, especially the promotion and application of smart phones, large-screen TVs, and smart tablet computers, these products have now entered thousands of households and companies around the world. However, with the promotion of various touch screen technologies, due to the high-frequency use of these products, the display surface of the product is easy to get dirty, scratched, and corroded by some chemical solvents. Therefore, the waterproof, anti-fouling, and anti-chemical agents of these products are improved. , Improving wear resistance, etc. are very necessary. At present, in the protection of electronic product display screens, many people use the method of sticking film, but this method has general effects and is also very limited, especially for...

Examples

Embodiment 1

[0029] A polyurethane mirror coating, which is composed of a component and a curing agent component in a weight ratio of 4:1.

[0030] Described a component is made up of the raw material of following weight part:

[0031] Polycarbonate diol 105, dicumyl peroxide 3, benzotriazepam 1, terpineol 5, diisopropylethanolamine 2, oleic acid 4, N-methylpyrrolidone 14, butyltin mercaptide 1 , modified esterification monomer 120, stannous sulfide 0.2, diatomaceous earth 5.

[0032] Described modified esterification monomer is made up of the raw material of following weight part:

[0033] Isophorone diisocyanate 110, ricinoleic acid 3, sorbitan monooleate 1, dodecyl mercaptan 15, nonylphenol 0.2;

[0034] The preparation method comprises the following steps:

[0035] (1) Take dodecyl mercaptan, heat it to 70°C, add nonylphenol, keep stirring for 20 minutes, add ricinoleic acid, raise the temperature to 90°C, keep stirring for 2 hours, and obtain an esterification solution;

[0036] (...

Embodiment 2

[0045] A polyurethane mirror coating, which is composed of a component and a curing agent component in a weight ratio of 3:1.

[0046] Described a component is made up of the raw material of following weight part:

[0047] Polycarbonate diol 100, dicumyl peroxide 3, benzotriazole 0.7, terpineol 3, diisopropylethanolamine 1, oleic acid 2, N-methylpyrrolidone 10, butyltin mercaptide 0.5, modified esterification monomer 110, stannous sulfide 0.1, diatomaceous earth 4.

[0048] Described modified esterification monomer is made up of the raw material of following weight part:

[0049] Isophorone diisocyanate 100, ricinoleic acid 2, sorbitan monooleate 0.5, dodecyl mercaptan 10, nonylphenol 0.1;

[0050] The preparation method comprises the following steps:

[0051] (1) Take dodecyl mercaptan, heat it to 60°C, add nonylphenol, keep stirring for 10 minutes, add ricinoleic acid, raise the temperature to 80°C, keep stirring for 1 hour, and obtain an esterification solution;

[0052] ...