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What Is Etfe Film?

Apr. 01, 2020
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The Chinese name of ETFE is an ethylene-tetrafluoroethylene copolymer. The thickness of the ETFE film is usually less than 0.20mm, which is a transparent film. The water cube used for the 2008 Beijing Olympic National Stadium and the National Swimming Center and other venues is made of ETFE film.

ETFE membrane is often made into an air cushion and applied to the membrane structure. The earliest ETFE project has a history of more than 20 years, and the most famous one is Eden in Britain.

Facade system PTFE membrane is a high-quality alternative material for transparent building structures. It has proven to be a reliable and economical roofing material for many projects over the years. The film is made of artificial high-strength fluoropolymer (ETFE), and its unique anti-adhesion surface makes it highly resistant to stains and easy to clean. Rainwater usually removes the main dirt.

ETFE roofing membrane structure has a service life of at least 25-35 years and is an ideal material for permanent multi-layer movable roof structures. This membrane material is mostly used for two-layer or three-layer inflatable support structures with a span of 4 meters. It can also increase the membrane span according to the special engineering geometry and climatic conditions. The length of the film is based on easy installation and is generally 15-30 meters. Small-span single-layer structures are also available in smaller sizes.

ETFE film meets B1, DIN4102 fire rating standards, and will not drip when burning. And the film is very light, only 0.15-0.35 kg per square meter. This feature makes it quite advantageous even in the case of film melting due to smoke and fire.

What Is Etfe Film?cid=20

PTFE Membrane

Depending on the position and surface printing, the transmittance of the ETFE film can be as high as 95%. The material does not block the transmission of light such as ultraviolet rays to ensure natural light inside the building. Through surface printing, the translucency of the material can be further reduced to 50%. According to the geometric conditions and the number of layers of the film, its K value can be as high as 2.0W / m2K. The energy consumption index can reach 0.77 with a three-layer printed film as an example.

Due to its excellent quality, ETFE membranes require almost no routine maintenance. A simple inspection of the roof due to mechanical damage (once a year is appropriate) can be carried out on-site as needed. At the same time, you can check the ventilation system and replace the filtering device.

ETFE membranes are completely recyclable materials, which can be reused to produce new membrane materials or produce other ETFE products after separation of impurities. ETFE is completely different from PVC and PTFE. Just like everyone knows about cars, Euro 1 to Euro 2 is easier, while Euro 2 to Euro 3 is completely different.


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