There are several types of membrane structure parking sheds, and what are their characteristics?

Date of issue: 2019-11-29 Author: Click:

Membrane structure parking shed The membrane materials of PVDF, PTFE and ETFE are mainly used. Among them, PVDF and PTFE are the most widely used.

PTFE membrane material:

Polytetrafluoroethylene (polytetrafluoroethylene or PTFE), commonly known as the "king of plastics", is a polymer compound formed by the polymerization of tetrafluoroethylene. Good insulation and aging resistance.

High temperature resistance - operating temperatures up to 250 ° C are used. Low temperature resistance - good mechanical toughness; The elongation of 5% can be maintained even if the temperature drops to - 196 ℃. Corrosion resistance - For most chemicals and solvents, it is inert, resistant to strong acids and alkalis, water and various organic solvents. Weatherability - The best aging life in plastics. High lubrication - lowest coefficient of friction in solid materials. Non adhesion - is the minimum surface tension in solid materials, and does not adhere to anything.

ETFE membrane:

Membrane structure parking shed

ETFE is called ethylene tetrafluoroethylene in English and ethylene tetrafluoroethylene copolymer in Chinese, commonly known as F-40. ETFE is the most tough fluoroplastic. It maintains the good heat resistance, chemical resistance and electrical insulation properties of PTFE, while greatly improving radiation resistance and mechanical properties. The tensile strength can reach 50 MPa, close to that of polymer. It is twice as high as tetrafluoroethylene.

PVDF membrane:

Polyvinylidene fluoride, abbreviated as PVDF, mainly refers to homopolymer of vinylidene fluoride or copolymer of vinylidene fluoride and other small amount of fluorovinyl monomers. In addition to good chemical resistance, high temperature resistance, oxidation resistance, weather resistance and radiation resistance, it also has the characteristics of fluororesin and general resin, as well as special properties such as piezoelectricity, dielectric property and weather resistance. thermoelectricity. Large products.

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