[China Glass Network] As the weather continues to be hot, people are hiding in the air-conditioned room to cope with the hot summer days, but the long-term operation of the air conditioner not only increases the electricity bill but also affects the service life and maintenance cycle of the air conditioner. There are many solutions, among which Applying a heat-insulating film to the outer window glass is a simple and effective method. Health Socks, Diabetic Sock JNY International Trade Co., Ltd , http://www.jny-socks.com
The glass film can be insulated, and there are many brands of glass insulation film on the market. There are national products, imported, low light transmission, high light transmission, low heat insulation and high heat insulation. There are dyed films, magnetron-sputtered films, nano-coated films, reflective, endothermic, etc., so it is necessary to know the little knowledge of the point-in-insulation film.
The market glass insulation film has three main production processes, each with its own advantages and disadvantages, to understand different production processes, and to choose according to their own preferences.
Domestic low-light-transparent dyed film (visible light transmittance ≤30%), there are two different production processes, one is the dyeing aluminized film, adding endothermic chemicals in the glue, after saturation, it will cause radiation to the human body. It is easy to fade, loses its heat insulation effect, and has a service life of about one year.
The other is a primary color aluminized film that has a slightly longer life span of about three years. The two membranes are coated with a single metal, the coating is not uniform, the low heat insulation is high in light transmission, and the light transmittance is too low in high heat insulation. This film is cheap, between 20-80 yuan per square meter.
The production process of some imported thermal insulation films is mainly magnetron sputtering. This kind of thermal insulation film is mainly based on reflection, which will have light pollution, affecting the pedestrian vision on the road and the driving safety of the vehicle. There is a so-called "ghosting" phenomenon, and the glass that is attached to the film is like a mirror-like reflection. From the perspective of feng shui, the indoor multi-mirror is not good.
The magnetron sputtering film contains elemental metal that shields the radio signal in the room. The price of each light meter of low light transmission type is between 100-300 yuan, and the price of high light transmission (visible light transmittance ≥60%) is between 800-1200 yuan per square meter. The warranty is around 5-7 years.
The newly launched ENP architectural glass insulation film adopts self-developed nano-material technology, with high light transmission and high heat insulation (visible light transmittance ≥70%, and total solar energy barrier ≥50%) as the core, the sunlight The light of each wavelength has selective transmission and absorption, does not cause light pollution, has no elemental metal, and does not cause unlimited signal shielding. The service life is up to 15 years, there is no adhesive residue when replacing, and the cost performance is high. The price per square meter is between 120-300 yuan.
The above are films of different processes, and consumers can choose according to their own needs.
The main function of the exterior doors and windows of the building is the two functions of lighting and ventilation. The function of the glass is to let the outdoor visible light enter the room as much as possible. Therefore, when selecting the glass film, it is first to be positioned in the high light transmission type film. The visible light transmittance of the film is ≥70%, which ensures that the glass film does not affect the indoor lighting, and does not need to be turned on indoors to increase the illumination, thereby saving lighting power.
The second step is to look at the thermal insulation effect of the membrane. The main indication of the total solar energy barrier of the membrane is ≥50%, or the infrared transmittance parameter of the reference membrane, based on ≤20%, must be full-band detection. Only the results of the 900-950nm band test have little significance for the thermal insulation effect.
The third step is to look at the UV-blocking index of the film. Based on ≥95%, it can block the damage of the human body and furniture caused by excessive ultraviolet rays.
The fourth step is to look at the product warranty period of the film. The warranty period of the good insulation film is generally not less than 10 years.
The fifth step is to look at the qualification of the film manufacturer. Try to choose a company that has its own production equipment certified by the relevant national authorities. Only after this sale will it be guaranteed.
In this way, the average consumer can choose the film that suits them in five steps. Of course, if some consumers don’t care about indoor lighting, they can also choose a low-light-insulation film, but this will cause indoor darkness and long-term. Living under such conditions can have different degrees of influence on the human spirit.