Function and classification of glazing protective film

The glazing protective film is a multi-layer functionalized polyester composite film material. It can improve the performance and strength of the glass when it is attached to the glass surface. It can improve the glass bending strength, improve the impact resistance of the glass, and avoid cracking due to glass. And fall off, protection, anti-theft and other functions.

According to the application field, the current glass window protective film is roughly divided into three categories: architectural glass window protective film, automotive glass window protective film, safety glass window protective film.
1. Architectural glass window protective film
It is mainly designed for energy saving and heat insulation, with UV protection and safety features. The film can also be classified into a heat reflective film and a low radiation film. A heat-reflecting film that adheres to the surface of the glass to allow visible and near-infrared light to pass through the room, but does not transmit far-infrared light. Therefore, there is enough light to enter the room, and most of the solar heat is reflected back, so that the indoor temperature does not rise too much in the hot summer, thereby reducing the indoor air conditioning load, saving air conditioning costs and energy saving. Low-emission film, which can transmit a certain amount of short-wave solar radiant energy, so that solar radiant heat enters the room and is absorbed by indoor objects. At the same time, it can keep long-wave infrared reflection of more than 90% of indoor objects in the room. Low-emission films can make full use of solar radiation and long-wave radiant energy from indoor objects. Therefore, it can be used for insulation and energy saving in cold areas and heating buildings.
2. Auto glass window protective film
It is attached to the inner surface of the automobile glass and has the functions of energy saving, ultraviolet shielding, safety and security. The automotive glazing protective film also has high requirements for visible light transmittance and visible light reflectance of the window film, especially the front glass film.
3. Safety glass window protective film
There is a very strong adhesive between the film and the glass. The film itself has good tear resistance and penetration resistance. Even if the glass is broken, it can maintain the original overall state, and prevent secondary damage to the human body caused by glass breakage caused by accidents. Its main function is safety and explosion protection. It is generally used in financial institutions such as banks, jewelry shop windows, museums, hotel halls and other important places or exhibition halls. The film has a certain heat insulation, ultraviolet light blocking ability and high transparency.

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Post time: 2019-07-04
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