About plating of plastic
- How to deal with yellowing caused by cigarettes
- What is the benefit of plating plastic?
- How to deal with aging deterioration
How to deal with yellowing caused by cigarettes
Plating on plastic was originally done for the decorative purpose of imparting a metallic-like luster to the plastic surface. However, nowadays, plating is sometimes performed to give plastic the benefits of functional resistance rather than appearance, such as water resistance and weather resistance.
What is the benefit of plating plastic?
The first is "to finish in a lightweight metal-like material". Metals are usually heavier than plastics, but metal plating on plastics can balance the look of metal with the lightness of plastics.
The second is "the product value increases in design." Generally, for plastics and metals, metals look better and design better. By plating on plastic, it makes it look like metal and enhances the commercial value of plastic materials and products that use them.
The third is that the product value in terms of functionality increases. By plating, plastic can be given functional characteristics such as water resistance, weather resistance, heat resistance and rigidity, and its commercial value is increased.
How to deal with aging deterioration
When plating plastic, you need to use a process different from metal plating.
Plating on metal generally uses "electroplating". It reduces metal ions by using electrons supplied from electrodes, and causes them to grow as plated films by emitting them as metals on the surface.
However, since plastic basically does not conduct electricity, this mechanism can not be used. Therefore, the plating process on plastic is called "etching".
By making the plastic surface uneven and adsorbing "palladium" there, the process called "electroless plating" is performed. Electroless plating film is metal, so it can be electroplated or electroless plated depending on the application.