The basic requirements for automobile glass are follows:
① transmission. The light transmittance should be high, and the perspective image does not produce deformation.
② mechanical strength. It is required to have a certain impact and bending strength, and it will not break or deform under the wind pressure at high speed. The surface of glass should also have certain hardness to scratch and hinder the field of vision.
③ safety. Requirements to use safety glass, after the collision only crack not broken, or fragments are not sharp corners, in order to minimize the injury to the occupants or pedestrians. At the same time, certain visibility should be maintained after the collision to avoid obstructing the driver's line of sight and causing the second accident.
Therefore, the developed countries have already stipulated, the car front wind window glass must use laminated glass. China's safety standards stipulate that the front air window glass must be laminated glass or part of the area tempered glass, other Windows should be tempered glass.
Therefore, the general ordinary glass and plexiglass is not suitable for car 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, blue glass that reduces the driver's eye fatigue. The development direction of automotive glass is: lightweight (thinning), safe, beautiful, multifunctional.
