What Are The Characteristics Of PTFE Building Film?

The chemical name of the PTFE building film is polytetrafluoroethylene, which is a chemically inert material. It is made of glass fiber as the base material to form a PTFE membrane. PTFE also has excellent durability, ease of cleaning, and stability. The PTFE membrane material selected by the National Stadium is the sound-absorbing membrane material in the ceiling area and the waterproof membrane material in the inner ring façade according to different locations.

1. Characteristics of PTFE membrane

(1) The biggest feature of the PTFE membrane is its high strength. The thickness of a medium-strength PTFE membrane is only 0.8mm, but its tensile strength has reached the level of steel; and its elastic modulus is low, which is conducive to the formation of complex curved surfaces. modeling;

(2) Wide operating temperature range, which can be used in the temperature range of -70℃～230℃;

(3) With unique optical properties, the incident light during the day becomes natural warm light, preventing glare, without shadows, and the light is evenly distributed; almost no ultraviolet rays penetrate, preventing the fading of interior decoration materials and equipment; high reflection performance at night makes the room It has excellent lighting effect, reduces power consumption, and can bring out the splendor of buildings in the night sky;

(4) Good self-cleaning, rainwater can wash off the attachments on the surface;

(5) It has high light transmittance, light transmittance is 13%, the heat reflectivity is 73%, and the heat absorption is very small;

(6) The service life is more than 25 years.

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