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Pvc membrane structural materials are widely recognized

by:LINYANG     2020-02-15

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most of the membrane structures are made up of steel and cables. In addition, the membrane materials combined with the structures are gradually becoming functional and intelligent. The membrane material has a light, free and beautiful shape; Light transmission, energy saving, environmental protection, excellent flame retardant performance; Anti-fouling and self-cleaning performance; Safety, long life and other advantages. Today, we will focus on pvc membrane structural materials.

at present, the widely recognized standard for building membrane materials is JISA- The three categories of A, B and C specified in 93 are divided according to their fire resistance. Class A is the best, with glass fiber fabric as the substrate coated with PTFE; Class B is the second, with glass fiber fabric as the base material coated with pvc; Class C is the second of the three categories, with polyester (Polyester)The fabric is coated with PVC. According to the coating material, there are Polytetrafluoroethylene (PTFE)Polyvinylidene fluoride (PVDF), Polyvinylidene fluoride (PVF), Polyvinyl chloride (PVC)Polyurethane (PU), Rubber, etc.

pvc membrane structural materials were developed and applied earlier. It is usually stipulated that the thickness of PVC coating at the intersection point of warp and weft of glass fiber fabric should not be less than 0. 2mm, the general coating will not be too thick, to meet the requirements of use. In order to improve the aging resistance of PVC itself, some light and heat stabilizers are often added during Coating. A certain amount of ultraviolet absorber should be added for light-colored transparent products, and carbon black is often added as stabilizer for dark-colored products. In addition, there are many ways to treat the surface of PVC. A very thin layer of metal film or aluminum spray can be laminated on PVC, and mica or Shi Ying can be used to prevent surface adhesion and contamination.

at present, while introducing world-class production equipment and technology, we need to step up digestion and absorption and improve innovation, develop surface treatment technology of pvc membrane structural materials suitable for China's market demand as soon as possible. This is of great significance for improving the grade and market competitiveness of textile products for the entire industry in China.

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