The difference between endothermic film and reflective film

At present, car films with thermal insulation effects on the market can be roughly divided into two categories, namely heat-absorbing thermal insulation films and reflective thermal insulation films. The principles of these two types of car films are completely different. Among them, the heat-absorbing heat-absorbing film uses the heat-absorbing material coated on the transparent polyester film to absorb the infrared rays in the solar spectrum (the main source of heat) to achieve heat insulation. Purpose, while the reflective heat insulation film is a metal layer formed on the surface of the polyester film by vacuum evaporation or magnetron sputtering, or the advanced micro-layer optical coating technology is used to reflect infrared rays to the outside of the car, so as to achieve The purpose of insulation. Reflective heat insulation film does not have the problem of secondary radiation like endothermic heat insulation film, which also solves the problem of heat insulation well.

The reflection test method can be used to distinguish between reflective and endothermic thermal insulation film. Since the reflective thermal insulation film is insulated by reflecting infrared rays, you can choose a small piece of glass, paste the reflective thermal insulation film, and then Put the filmed glass in front of the infrared lamp under test, and use an infrared power meter to measure the reflected energy. The larger the received energy value, the better the reflection effect; similarly, change to an endothermic heat insulation film, the same The method test is compared, and the specific effect is shown in the figure:

Changzhou Shanyou Dishan Protective Material Manufacturing Co., Ltd., as a larger and earlier window film manufacturer in China, has advanced technology and strong research and development capabilities. It has solved the problem of adhesive application formulation design, nano thermal insulation material dispersion and compatibility, optical design, High-efficiency UV blocking, production technology and other issues, through optical design and material selection, including infrared reflection and infrared absorption and their combination, the window film can maintain a high light transmittance and the infrared blocking rate can reach more than 90%, which solves the hot summer area The problem of building energy saving for external window insulation. The insulation film products produced have reached the national energy saving level 1, making the company a domestic ^ and enterprise that has passed the China Building Materials Certification Center (CTC) energy conservation certification. This technology has obtained the national invention patent authorization. Won the "Changzhou Science and Technology Progress Third Prize", the building glass insulation film and high-efficiency energy-saving insulation window film have become "Jiangsu Province High-tech Products" and "Changzhou High-tech Products", and are the company's main products to open up new markets. The company participated in the drafting and compilation of the national standards "Functional Film for Architectural Glass" (GB/T29061-2012), "Automotive Film Glass" and the automotive industry standard "Automotive Film Glass Technical Requirements", which can better provide customers with high cost performance Products and high-quality services. (Technical Quality Department)