The strength and fire resistance of PVC film materials have a certain degree of gap compared to PTFE in China, and the service life of PVC film materials is generally 7 to 15 years. In order to solve the self-cleaning problem of PVC film materials, PVDF (polyvinylidene fluoride acetic acid as resin) is usually coated on the PVC coating, which is called PVDF film material.

Another type of polyvinyl chloride film material coated with titanium dioxide (TiO2) has extremely strong self-cleaning ability. Made directly from ETFE (ethylene tetrafluoroethylene copolymer) raw material. ETFE not only has excellent impact resistance, electrical performance, thermal stability, and chemical corrosion resistance, but also has high mechanical strength and processing performance.

This type of membrane material is widely used in existing membrane structures in China, and the current development trend is gradually being replaced by PTFE membrane material. The main characteristics of PVC materials are low strength, high elasticity, easy aging, poor self-cleaning, but low price, easy processing and manufacturing, rich colors, and good folding resistance. In order to improve its performance, a layer of polytetrafluoroethylene coating can be coated on its surface to improve its anti-aging and self-cleaning ability, and its service life can reach about 15 years.

PVC membrane material

PVC film cloth has the characteristics of high strength, good durability, fire resistance, good self-cleaning, and is not affected by ultraviolet rays, and its service life can reach more than 20 years. The light passing through the thin film material is naturally diffuse light, which does not produce shadows or glare. It has a high reflectivity towards solar energy, so it absorbs very little heat. Even in the hot summer sun, it is not affected by too much indoor exposure. It is precisely because of this epoch-making membrane material that membrane structures have emerged, from peopl