Difference between Endothermic and Reflective Window Film

At present, the window film with heat insulation effect on the market can be divided into two categories, respectively, endothermic type heat insulation film and reflective type heat insulation film. The principle of these two types of window film is completely different, the endothermic heat insulation film is coated in a transparent polyester film heat absorbing material absorption of the solar spectrum infrared (the main source of heat) so as to achieve the aim of heat insulation, and reflective heat insulation film is by vacuum evaporation or magnetron sputtering in polyester film surface metal layer, Or use advanced microlayer optical coating technology to reflect infrared light to the outside of the window, thus achieving the purpose of insulation. Reflective type insulation film does not have the problem of secondary radiation as endothermic type insulation film, which is a good solution to the problem of insulation.

Differentiate reflective heat insulation film and endothermic heat insulation film reflection test method can be used, because the reflective heat insulation film is by reflecting infrared, so you can choose a small piece of glass, installing reflective heat insulation film, and then press the glass put before the test of infrared lamp, using infrared power meter to measure the reflected energy size, receives the energy value, the greater the better the reflection effect is; Similarly, replace the endothermic type heat insulation film, the same method was tested for comparison, the specific effect is as shown as follows:

1. the infrared heat reflection data of 707.9W/㎡ with reflective heat insulation film, most of the heat is reflected;

2. the infrared heat reflection data of 84.98W/ m2 with an endothermic insulation film, most of the heat is absorbed.

Changzhou Sanyou Dissan Protective Materials MFG Co., Ltd., a state-holding enterprise under China Aerospace Science and Technology Corporation, is mainly engaged in R&D and manufacturing of automobile films, functional films for building glass and special protective films. With a registered capital of CNY216.0103 million, the company has two production bases in Chuangzhou, Jiangsu and Xi`an, Shaanxi . It has nine imported precision coating production lines and nine cutting production lines, with an annual production capacity of 80 million square meters. It is a large-scale functional film material R&D and production base in Asia with products exported to different nations in the world. With a professional R&D team led by doctors and masters, the company has secured 59 state-authorized patents (including 15 patents for invention) . It has mastered the core production technologies such as precision coating, film structure design and surface treatment, spectral selectivity control, functional formula design and manufacturing, color adjustment and fixation, etc., thereby solving a lot of long-term technical challenges for the industry. It is no doubt the industrial leader both in China and abroad. The company has obtained certifications of ISO9001 Quality Management System, ISO14001 Environment Management System, OHSAS18000 Occupation Health Safety Management System, BSCI International Social Responsibility System and CTC National Energy-saving Products. It has gained national high-tech enterprise, Jiangsu High-performance Optical Film Material Engineering Technology Research Center and Jiangsu Recognized Enterprise Technology Center. It has participated in drafting many national standards and industrial standards of automobile window films and functional films for building glass, and honored to be the ninth manufacturer member of International Window Film Association (IWFA) in the world. For more than a decade, by pursuing the business philosophy [seek common development with users and create wealth for shareholders, committed to common affluence with employees and create prosperity for the society" as well as the spirit of [seek truth, forge ahead and never be satisfied", the company has become a global professional manufacturer and supplier of functional film materials with scientific and efficient management, excellent and reliable quality and honest and satisfactory service.