The basic requirements for automotive glass are:
1 transparency. The light transmittance is required to be high, and the image of the perspective is not deformed.
2 mechanical strength. It is required to have a certain impact and bending strength, and it will not be broken or deformed under the wind pressure at high speed. The surface of the glass should also have a certain hardness to avoid scratching the surface and obstructing the field of view.
3 security. Safety glass is required, and only cracks or breaks after collision, or the pieces are not sharp, to minimize damage to occupants or pedestrians. At the same time, a certain degree of visibility should be maintained after the collision to avoid obstructing the driver's line of sight and causing a second accident.
Therefore, developed countries have already stipulated that the front windshield of the automobile must use laminated glass. China's safety standards stipulate that the front windshield of the automobile must use laminated glass or partially regional tempered glass, and other windows should be made of tempered glass.
Therefore, ordinary ordinary glass and plexiglass are not suitable as automobile glass.
The color of the car glass is also changing. The original colorless transparent glass has been gradually replaced by bronze glass or green glass or blue glass which relieves the driver's eyes.
The development direction of automotive glass is: lightweight (thinning), safe, beautiful, and versatile.
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