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Preparation method of transparent, self-cleaning, antibacterial, and wear-resistant coating on polymer surface

A wear-resistant coating and polymer technology, applied in the field of antibacterial, transparent and self-cleaning polymer surface, and the preparation of wear-resistant coatings, can solve the problem of poor wear resistance, high cost, physical deposition process not suitable for large-area processing, etc. problem, to achieve the effect of expanding the scope of application and promoting photoactivity

Inactive Publication Date: 2016-04-20
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, polymer materials have low hardness and poor wear resistance. Therefore, in practical applications, it is necessary to carry out surface wear-resistant treatment
[0004] For the processing of oxide coatings on the surface of polymer substrates, the physical deposition technology widely used at present has the defects of expensive equipment and high cost. At the same time, the physical deposition technology is not suitable for non-standard and large-scale processing; the traditional sol-based The solution processing technology of the gel process is difficult to apply on the surface of polymer substrates that are not resistant to high temperatures due to the need for high temperature sintering
However, the application of photoactive coatings processed by bonding and embedding technology is also limited due to the problem of photocorrosion between the bonding layer and the substrate.

Method used

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  • Preparation method of transparent, self-cleaning, antibacterial, and wear-resistant coating on polymer surface
  • Preparation method of transparent, self-cleaning, antibacterial, and wear-resistant coating on polymer surface
  • Preparation method of transparent, self-cleaning, antibacterial, and wear-resistant coating on polymer surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] 1. Preparation of titanium peroxide solution:

[0054] Take TiCl 4 Dissolve in deionized water to obtain a titanium salt solution with a concentration of 0.2 mol / L, and then adjust the pH of the solution to 9 with 5% ammonia water to obtain a white orthotitanic acid precipitate. Wash with deionized water until there is no chloride ion in the system. Disperse the orthotitanic acid precipitate in 100ml of hydrogen peroxide solution with a mass concentration of 30%. After the precipitate is completely dissolved, add 0.01g of ferric oxide as a catalyst, heat at 50°C for 2h, and remove free oxygen in the system to obtain A yellow-brown transparent titanium peroxide solution, the concentration of the prepared titanium peroxide solution is 0.2mol / L.

[0055] 2. Compounding of nano-silver and titanium peroxide solution:

[0056] Add AgNO to 100ml distilled water 3 The solid is made into a solution of 0.04mol / L, and under the condition of reflux at 100°C, add 250ml of citric...

Embodiment 2

[0062] 1. Preparation of titanium peroxide solution:

[0063] Take TiCl 4 Dissolve in deionized water to obtain a titanium salt solution with a concentration of 0.2 mol / L, and then adjust the pH of the solution to 9 with 5% ammonia water to obtain a white orthotitanic acid precipitate. Wash with deionized water until there is no chloride ion in the system. Disperse the orthotitanic acid precipitate in 100ml of hydrogen peroxide solution with a mass concentration of 30%. After the precipitate is completely dissolved, add 0.01g of ferric oxide as a catalyst, heat at 50°C for 2h, and remove free oxygen in the system to obtain Yellow-brown transparent titanium peroxide solution.

[0064] 2. Compounding of silica / titanium peroxide solution:

[0065] 200mL concentration is the titanium peroxide solution of 0.20mol / L, and adding 200ml particle size is 8-20nm, and the concentration of pH value is 3 is the acidic silicon dioxide aqueous sol of 0.10mol / L, makes the silicon dioxide an...

Embodiment 3

[0071] 1. Preparation of titanium peroxide solution:

[0072] Take TiCl 4 Dissolve in deionized water to obtain a titanium salt solution with a concentration of 0.2 mol / L, and then adjust the pH of the solution to 9 with 5% ammonia water to obtain a white orthotitanic acid precipitate. Wash with deionized water until there is no chloride ion in the system. Disperse the orthotitanic acid precipitate in 100ml of hydrogen peroxide solution with a mass concentration of 30%. After the precipitate is completely dissolved, add 0.01g of ferric oxide as a catalyst, heat at 50°C for 2h, and remove free oxygen in the system to obtain Yellow-brown transparent titanium peroxide solution.

[0073] 2. Compounding of alumina / titanium peroxide solution:

[0074] 200ml of titanium peroxide solution with a concentration of 0.20mol / L was added to 200ml of acidic alumina aqueous sol with a particle size of 8-20nm and a pH value of 3 at a concentration of 0.10mol / L, so that the molar ratio of al...

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Abstract

The invention discloses a processing method of a transparent, self-cleaning, antibacterial, and wear-resistant coating on the polymer surface. The preparation method comprises the following steps: preparing a titanium peroxide solution; preparing a titanium peroxide compounded complex solution; preprocessing a substrate; impregnating the substrate into the titanium peroxide compounded complex solution, and carrying out a heat treatment to obtaina transparent, self-cleaning, antibacterial, and wear-resistant coating on the substrate. The provided method can produce a transition metal oxide coating on the surface of a substrate, the coating has a large surface and photoelectrical function, the production cost is low, no pricy equipment is needed, and the procedure is simple. Through the redox reactions between polymer monomers with a conjugate structure and a transition metal peroxide compounded complex, the destruction to adhesive and substrate due to optical corrosion of optical active oxides is avoided, and moreover, the optical activity is enhanced through the heterojunction effect. Besides, through the design and synthesis of a peroxide compounded complex system, the application range of painting by utilizing the redox reactions between polymer monomers with a conjugate structure and a transition metal peroxide compounded complex is enlarged.

Description

technical field [0001] The invention relates to coating processing technology. More specifically, it relates to a method for preparing a transparent self-cleaning, antibacterial and wear-resistant coating on a polymer surface. Background technique [0002] Polymers are widely used in daily life and chemical industry. In practical applications, the interaction between polymer materials and the surrounding environment mainly occurs on its surface, such as printing, adsorption, bonding, friction, coating, dyeing, Many applications such as electroplating, anti-fog, anti-corrosion, aging resistance, surface conductivity, surface hardness, etc., require polymer materials to have appropriate surface properties. However, most polymers have low surface energy, surface inertness and hydrophobicity, non-wetting to water, low adhesion strength to adhesives or coatings, or poor dyeability, which limit their application range. To improve its surface properties, it is necessary to modify...

Claims

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Application Information

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IPC IPC(8): C08J7/04C08J7/06C08J7/00
Inventor 只金芳吴良专
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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