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Advantages and disadvantages of glass surface treatment

Advantages of glass surface treatment:


1, improve the physical and chemical properties of glass, such as surface coating to improve the strength and chemical stability of glass.


2, obtain the glass substrate can not have the characteristics, such as glass substrate coated with TbFeCo magneto-optical film, can be used as information recording magnetic disc, such as in the glass after the grating film, light irradiation can produce a rainbow effect.


3. Different properties and functions can be obtained by using different surface treatment methods for the same glass substrate. If float glass as a substrate, the use of chemical frosting can form a translucent surface. With the use of thermal reflective film, can reflect 67% of the solar energy, shading effect. The color-changing film can change the color of glass under different light intensity or electric field direction.


4. Low consumption of raw materials, low pollution and low price. Take the glass color as an example, the overall coloring glass requires more colorant, often volatile when melting, pollution of the environment. And surface colouring agent dosage, low cost. Another example is ion implantation, in which few target materials are used. The implantation process is basically pollution-free and meets the requirements of sustainable development. The equipment is simple and the added value of the product is high. For example, iced glass, which can be processed by simple equipment with flat glass as the original, is much more expensive than flat glass.

Low-E Glass  (3)


Disadvantages of surface treatment:


1, the surface treatment effect has certain limitations, such as the surface diffusion coloring easy to get yellow, brown, red, but it is difficult to get blue, green and other colors, the bright degree of color is not as good as the overall coloring; Such as hot tempered glass, can not be re - cutting and other mechanical processing, sometimes automatic blasting.


2. The depth of the surface treatment layer is limited to a certain extent. The ion exchange layer ranges from dozens to hundreds of microns, and the ion injection depth is about hundreds of nanometers.


3, some of the surface film and coating is not wear-resistant, easy to be eroded, often occur stripping and falling off.