Composition of the explosion-proof film: different materials, different functions
The explosion-proof film is widely used in our lives. The various explosion-proof film fills every scene of our life. There are explosion-proof films with high light transmission, building films with thermal insulation and energy-saving, and explosion-proof films with health and antibacterial properties. But the role of all explosion-proof film is the same-to protect people's health and safety.
Although the appearance of the explosion-proof film is the same, in fact, the composition and materials of the explosion-proof film are very different, and the performance of the explosion-proof film is also different. The explosion-proof film looks like a thin layer of film, but its composition is quite complicated.
Generally speaking, the explosion-proof film structure is composed of basic materials such as PET safety base layer, anti-wear layer, composite adhesive, and high-transparent PET release film. Depending on the functional requirements of the explosion-proof film, it will be added with a heat insulation layer and a color film. , UV absorption layer and other functional layers. Different material layers play different roles.
1. Safety base: Safety base is the basic material for all explosion-proof film. Transparent and very strong impact resistance. And can effectively filter the glare in the environment. Generally speaking, the anti-glare function is completed by this layer.
2. PE synthetic fiber layer: This is a very important layer related to safety. The explosion-proof function we mentioned is through it. The high-quality explosion-proof film itself has strong toughness, and the strong glue on it can tightly stick the broken glass together to avoid secondary damage to passengers caused by the glass fragments splashed during the accident, and its impact resistance is also very strong.
3. Transparent adhesive layer: The transparent adhesive layer mainly improves the light transmission of the explosion-proof film and maintains the effective transmission of light. When the explosion-proof film is applied to automobiles, consumers should try not to choose an explosion-proof film with a light transmittance of less than 70%. The window film, especially the films on both sides of the front row, should choose a light transmittance of more than 85%. At this time, the side window film does not need to dig holes and does not affect the line of sight. When driving at night, the strong glare reflection of the headlights coming from the back of the car through the safety mirror can be reduced, making the eyes comfortable. In addition, when driving on a rainy night, turning around, and reversing, you can also ensure good visibility.
4, HC wear-resistant layer: As the explosion-proof film will be subject to the friction of various things for a long time, anti-scratch is one of its basic properties. This layer is very tough and super wear-resistant, which can protect the daily friction of the explosion-proof film, prevent the surface of the film from being scratched, ensure the clarity of the field of vision, and ensure that the glass is as old as new.
5. Insulation layer: It can selectively reflect the infrared and ultraviolet rays in the sunlight to play the effect of heat insulation. The thermal insulation performance of a car film depends on its reflection and absorption capabilities. The stronger the reflection, the stronger the absorption capacity, and the higher the heat insulation rate.
6. Ultraviolet absorbing layer: Ultraviolet rays account for only 3% of sunlight, but it will cause the fading of items and the aging of plastic and rubber parts. Excessive ultraviolet radiation can also induce human skin cancer. The high-quality explosion-proof film can absorb the ultraviolet rays passing through the heat insulation layer again through this layer, which can not only effectively prevent people in the indoor environment from being burned by excessive ultraviolet rays, but also protect furniture and other interior decorations to slow down aging. There is no inherent standard for the material of explosion-proof membranes, but "visible security" is the goal pursued by consumers and manufacturers. The high-quality explosion-proof film can give us a satisfactory sense of security.
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