Salt film (salt field crystallization tank, brine pool lid, salt film, salt pool plastic enamel film) with plastic film as the anti-seepage substrate, salt film and non-woven composite composite anti-seepage material, salt film its anti-seepage performance It mainly depends on the anti-seepage properties of the plastic film. At present, the plastic film for anti-seepage applications at home and abroad mainly includes polyvinyl chloride (PVC) and polyethylene (PE), EVA (ethylene/vinyl acetate copolymer), and the salt film is a polymer chemical flexible material with a specific gravity. Small, strong extension, high adaptability to deformation, corrosion resistance, low temperature resistance, good frost resistance.
Salt film use methods and precautions:
1. According to the size of the crystallization pond, the film size should be determined, and the shrinkage rate should be 5% in the longitudinal direction.
2. When heat sealing, use a thick salt film to wipe the heat sealing part, using automatic heat sealing crawler or adhesive.
3, should avoid contact with the angular hard objects, so as not to scratch.
4. When not in use, the salt film should be closed and covered with a light-proof material to extend the service life.
5. When transporting the product, it should prevent mechanical collision and sun and rain, and should be handled with care to ensure complete packaging.