Explosion-proof membrane is a metal film installed on the upper part of pressure vessel to prevent the vessel from exploding, and it is a safety device. Also known as explosion-proof disc or bursting disc. When the pressure in the container exceeds a certain limit, the film will rupture first, thus reducing the pressure in the container and avoiding explosion. Widely used in pressure vessels. The word explosion-proof membrane sometimes refers to the windshield membrane.
The production process of high-grade automobile heat insulation and explosion-proof film is extremely complicated. Take 3M automobile explosion-proof membrane as an example. Its product process structure consists of seven layers: polyester film layer, metal coating, adhesive layer, wear-resistant layer, ultra-thin coating and two safety seats. Each layer has different functions. Its main performance features are as follows:
1. Metal coating is mainly used to reflect and block the wavelength of infrared and heat energy, and realize the functions of heat insulation and ultraviolet isolation.
2. Polyester film and ultra-thin coating can effectively reduce glare, one-way perspective, and automatically adjust the light inside the car, which is suitable for any weather change. Clear vision, safe and comfortable driving.
3. The safety base has very good impact resistance and tear resistance, preventing glass from bursting and splashing.
4. The wear-resistant layer is ultra-wear-resistant, which prevents the film surface from being scratched and keeps the car body beautiful.
5. The adhesive layer is a very important layer, and the whole film is integrated with the automobile glass through the adhesive layer. The 3M membrane adopts a unique patented pressure-sensitive adhesive layer, which is safe and environment-friendly, and achieves the best strength about one week after construction. It can not only realize the comprehensive performance of the film, but also effectively improve the strength and rigidity of automobile glass.
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