Car Window Solar Tint Glass Film Roll

Thermal insulation film is a kind of automotive film, also known as solar film and window film. It is a functional composite film installed on both side windows, front windshield, and sunroof, playing a role in heat insulation, UV protection, and explosion-proof.

According to the different thermal insulation media, thermal insulation films can be divided into metal films and ceramic films. The metal insulation film is uniformly sputtered onto a high tensile PET substrate through a magnetron sputtering process; The ceramic thermal insulation film is composed of nano metal oxides divided into a slurry and added to the adhesive layer.

The application of ceramic thermal insulation film in new energy vehicles has advantages such as good thermal insulation effect, excellent light transmittance, and no signal insulation. So, let's take a look at the nano materials that can be used in thermal insulation films today, including ITO, ATO, and GTO.

ITO: Indium Tin Oxides

It is an early application of thermal insulation materials, and also a semiconductor material. The most common application is as a transparent conductive film material. However, the high price of indium oxide limits the popularity of materials as thermal insulation materials.

The barrier region of ITO to IR is between 780 nm and 1600 nm, and the barrier region of about 1400 nm to IR is much better than the barrier region of about 950 nm. The visible light region with a wavelength of 380 nm to 780 nm has a good transmittance.

ATO: Antimony Tin Oxide

Antimony Tin Oxide, also known as tin antimony oxide, has a considerable advantage in price compared to indium oxide. Its IR barrier area is between 780 nm and 1300 nm, with the best IR barrier around 1100 nm. It can be used as an excellent heat insulating powder and conductive powder, and has anti static, anti glare, and anti radiation functions.

GTO: that is, tungsten oxide doped with some other metal components, with a particle size of less than 40nm

The barrier region for IR varies greatly due to the different barrier bands doped by each company, resulting in a relatively low cost. Currently, it is widely used.

Raw materials such as GTO powder thermal insulation window film are modified ATO nano paste prepared by doping other metal oxides based on the characteristics of nano ATO.

This modified ATO nano thermal insulation medium not only has the physical properties of nano ATO such as transparency and thermal insulation, but also has characteristics that are different from nano ATO. In particular, the ability to block IR in near-infrared regions with wavelengths below 1000 nm is much greater than the ability of ATO and ITO to block IR, and it has extraordinary blocking ability for near-infrared regions below 1000 nm.

The area most sensitive to the thermal sensation of the human skin is the near infrared region below 1000 nm. This thermal insulation medium can be used to manufacture sunscreen and thermal insulation films or glass sunscreen and thermal insulation coatings for automotive and architectural glass, which can significantly save energy, achieve more effective winter warmth and summer cooling, and create a more comfortable, environmentally friendly, and energy-saving indoor environment.

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