Product Description

ETFE Constructure Air Bubble Film ETFE Pneumoccipital Membrane

Usually choose 200 to 250um thickness Etfe Film to make it into double layers structure membrane with air in it.

ETFE bubble film, also known as ETFE air pillow film, is a kind of dual-layer aerated film structure made directly from ETFE (ethylene - tetrafluoroethylene copolymer) raw materials. The outer layer is made of ETFE to protect against rain, snow and UV radiation, while the inner layer can be made of PTFE for insulation, anti-condensation, sound insulation and light effect. With the successful development of ETFE film materials, ETFE film has been widely used because of its excellent properties such as light weight, light transmission, heat insulation, corrosion resistance, weather resistance and self-cleaning. ETFE film material is a kind of non-fabric film material, compared with textile film material, the tensile strength of its single film is slightly lower, in buildings, usually use cable film structure or air pillow. Among them, the air pillow form is a combination of multiple ETFE film materials that are subjected to force through internal pressure and have appropriate stiffness. The ETFE bubble film structure obtained by this method has good mechanical properties and practical properties, and gradually gained extensive development and broad prospects.

Time is developing, ETFE bubble film research is also in progress. By adjusting the internal pressure, the mechanical properties, transmission and heat insulation properties of ETFE bubble film are changed. At the same time, the development, performance, design method and construction technology of ETFE bubble film are studied and summarized, and the research status of ETFE bubble film by domestic and foreign scholars is summarized, which has certain guiding significance for engineering practice

The transfer process in ETFE bubbles is very complex and involves many physical phenomena: conduction, convection, radiation, surface emissivity, and heat loss. These parameters are directly related to the airtight performance of the bubble and the use of shading facilities. These parameters constrain each other and affect the overall performance of the structure. ETFE itself is also a good insulation material. In cold weather, even with the same U value (thermal conductivity), the comfort of an environment surrounded by bubbles is better than that of glass, because the inner layer of ETFE bubble film is closer to room temperature than the inner layer of double glass. In general, ETFE bubble film has better insulation performance than sealed glass in terms of both material surface and sealing edge.

Each layer of ETFE bubble wrap can be customized individually. In order to enable the film to be used on a larger scale, chemical colorants can be added to certain layers or layer by layer on the film surface, or patterns can be printed on the film surface to control the radiation on the film surface and achieve shading effect. Similarly, printed patterns are used to reduce the radiation coefficient of a material's surface or the ability of the material itself to absorb or radiate energy.

Because of its thinner thickness, ETFE films are at roughly the same temperature as their surroundings, rather than getting hotter as their radiation absorption capacity increases, as glass does. Therefore, the ability of the material itself to absorb or radiate energy is not very critical. In addition to the energy exchange on the material, the energy loss caused by gas leakage can also be ignored. The gas pillow membrane structure connecting components can effectively avoid air leakage. At the same time, the number of components is small, bringing energy saving benefits equivalent to 3-4 times that of glass.

ETFE bubble Wrap is typically equipped with an active monitoring system that provides local real-time information on the pressure inside the pillow, local weather conditions, temperature, humidity levels, and any failures during system operation through remote monitoring. If problems arise, remote access to the control system can be used to help with field updates and pressure adjustments within limits