Method for preparing antibacterial coating on surface of plastic

A surface antibacterial and plastic technology, applied to the surface coating liquid device, pretreatment surface, coating, etc., can solve the problems of poor wear resistance, antibacterial and antibacterial antibacterial timeliness is not long enough, etc., to achieve excellent function and good appearance , Good antibacterial supplement effect

Active Publication Date: 2011-06-29
XIAMEN RUNNER IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for preparing an antibacterial coating on a plastic surface with better antibacterial effect in view of the disadvantages of the existing antibacterial organic coating on the plastic surface, such as poor wear resistance and insufficient timeliness of antibacterial and antibacterial inhibition.

Method used

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  • Method for preparing antibacterial coating on surface of plastic
  • Method for preparing antibacterial coating on surface of plastic
  • Method for preparing antibacterial coating on surface of plastic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An example of a PC / ABS mirror shell coated with double-layer antibacterial coating, the process flow is as follows:

[0019] (1) Put the PC / ABS injection-molded blank into the PVD vacuum equipment for vacuuming. When the vacuum degree reaches 10 -2 When the base material is cleaned and activated (plasma glow), the process conditions are ion source current 0.3A, bias voltage 150V, duty cycle 80%, argon flow rate 100SCCM, oxygen flow rate 200SCCM, furnace vacuum pressure 0.4Pa , The activation time is 10 minutes, in order to achieve the purpose of cleaning and activating the surface of the substrate, and improve the bonding force between the metal antibacterial film and the substrate.

[0020] (2) Vacuum-plate metal base film on the surface of the PC / ABS injection-molded blank, vacuum-plate antibacterial metal film on the surface of the substrate, and deposit three kinds of metal antibacterial films of copper, chromium and silver at the same time, and use arc targets for ...

Embodiment 2

[0029] Application example of double-layer antibacterial coating on glass fiber reinforced PPO plastic substrate, the process flow is as follows:

[0030] (1) Put the glass fiber reinforced PPO plastic matrix into the PVD vacuum equipment for vacuuming, when the vacuum degree reaches 10 -2 When the base material is cleaned and activated (plasma glow), the process conditions are ion source current 0.8A, bias voltage 200V, duty cycle 50%, argon flow rate 10SCCM, oxygen flow rate 300SCCM, furnace vacuum pressure 0.5Pa , The activation time is 15 minutes, in order to achieve the purpose of cleaning and activating the surface of the substrate, and improve the bonding force between the antibacterial film layer and the substrate.

[0031] (2) Vacuum metal base film on the surface of glass fiber reinforced PPO plastic substrate, the process conditions are intermediate frequency sputtering process conditions: intermediate frequency power supply power 6kW, bias voltage 80V, argon flow r...

Embodiment 3

[0037] An example of PA6 plus glass fiber mineral powder (reinforced PA6) coated double-layer antibacterial coating faucet, the process flow is as follows:

[0038] (1) Put the PA6 plus glass fiber mineral powder (reinforced PA6) plastic substrate into the PVD vacuum equipment, and vacuumize it. When the vacuum degree reaches 10 ～2 When the base material is cleaned and activated (plasma glow), the process conditions are ion source current 0.6A, bias voltage 100V, duty cycle 70%, argon flow rate 50SCCM, oxygen flow rate 100SCCM, furnace vacuum pressure 0.3Pa , The activation time is 8 minutes, in order to achieve the purpose of cleaning and activating the surface of the substrate, and improve the binding force between the antibacterial and chlorine removal film and the substrate.

[0039] (2) Vacuum-plate metal base film on the substrate surface of PA6 plus glass fiber mineral powder (reinforced PA6), vacuum-plate antibacterial metal film on the surface of the substrate, and de...

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Abstract

The invention discloses a method for preparing an antibacterial coating on the surface of a plastic, and relates to a plastic material. The invention provides a method for preparing an antibacterial coating on the surface of a plastic, which has high antibacterial effect. The method comprises the following steps of: vacuumizing a plastic substrate in a physical vapor deposition (PVD) vacuum equipment, and performing activating treatment; performing vacuum plating of an antibacterial metal film on the surface of the activated plastic substrate; and spraying an antibacterial intermediate coating on the sample with the vacuum-plated antibacterial metal film to obtain the antibacterial coating on the surface of the plastic, wherein the antibacterial intermediate coating is a paint layer added with an organic antibacterial agent or inorganic antibacterial agent. The antibacterial metal film which is plated by the PVD vacuum equipment is utilized to compensate the antibacterial ageing of the organic antibacterial coating, so that a product with double antibacterial layers has excellent antibacterial and bacteriostatic effect in the using period, has long-term antibacterial effect and high antibacterial and bacteriostatic efficiency, has the antibacterial ratio of over 99 percent, excellent functions and attractive appearance, and is suitable for industries such as bathrooms, electronics, home appliances, automobiles and the like.

Description

technical field [0001] The invention relates to a plastic material, in particular to a method for preparing an antibacterial coating on a plastic surface. Background technique [0002] Since entering the 21st century, plastic products have become an indispensable part of people's daily life. They are widely used in every detail of our lives, such as various household appliances (telephones, washing machines, computers, electrical switches, etc.) have been widely used in plastic products. On the other hand, due to the impact of environmental pollution and other reasons, the surfaces of these plastic products that people contact with daily often carry a large number of bacteria, which become the source of bacterial pollution and disease transmission. According to statistics, about 17 million people are caused by bacterial infection in the annual death toll in the world. Then the development and research of new-type coated products with antibacterial properties have very impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/20C23C14/34C23C14/02C23C14/32B05D1/02B05D3/02B05D7/26
CPCB05D3/067B05D2201/02B05D3/0263B05D3/0209C23C14/205B05D1/02
Inventor 余水李明仁
Owner XIAMEN RUNNER IND CORP
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