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Do you know these characteristics of PTFE membrane material

2020-04-14 13:43:58
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teflon The fiberglass membrane can be installed in the climate from cold Arctic to hot desert, and the expected life of the project is more than 30 years.

PTFE glass fiber coating is chemically inert and can withstand temperatures from - 73 ° C to 232 ° C. The low surface freedom of the material will produce a surface that is easy to be cleaned by rainwater. It is also completely unaffected by UV degradation. This unique inertia, thermal stability and surface characteristics make PTFE coated fabric film very suitable for projects requiring excellent weather resistance and fire resistance. PTFE glass fiber structure has been built worldwide, and has passed the national standards of Britain, France, Italy, Australia, Japan and Germany, as well as the guidelines formulated by the American Society for Testing and Materials.

PTFE glass fiber has also passed the certification of Energy Star and Cold Roof Rating Committee. When scientifically testing its solar energy characteristics, it was found that the energy reflected by the PTFE glass fiber film was up to 73% of the solar energy, while its external surface was only 7%. Some grades of PTFE glass fiber can absorb 14% of solar energy, while allowing 13% of natural sunlight and 7% of re radiated energy (solar energy) to pass through.

Compared with steel, PTFE glass fiber yarn has an ultimate tensile strength of 500000 PSI and an elastic modulus of 10.5 x 106 PSI, providing 40000 PSI and 29 x 106 PSI, respectively. Under normal conditions, the fabric exhibits elasticity and will not experience significant stress relaxation or creep.

Woven glass fiber endows PTFE glass fiber membrane with mechanical strength. These filaments, called beta glass, are small in diameter and can provide great flexibility for the membrane. Tetrafluoroethylene products The fibers are pulled from the hot melt glass through a platinum die to form continuous filaments, which are then twisted and twisted into bundles. The yarn is woven into a wide structured fabric and then coated with PTFE glass fiber to complete the process.

The difference between PTFE glass fiber membrane and traditional glass window mainly lies in its good sunshade coefficient. With the improvement of lighting level, PTFE glass fiber membrane can also be used to achieve overall energy saving even in colder climates. In very warm climates, even under low illumination, PTFE glass fiber membrane can still save energy compared with traditional systems. Compared with the traditional inclined glass system, the cost saving is higher.


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