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Flexible Film
- Nov 22, 2017 -

Flexible film is a certain thickness and tough texture of the polymer sheet, its impermeability is particularly significant. Many high molecular polymers can be used as landfill lining material. Currently the most widely used is high density polyethylene sheet (HDPE). With the development of hazardous waste treatment and disposal technologies, FML has played an important role in the disposal of hazardous waste. It is mainly used for landfill liner materials, but also for hazardous waste packaging, transportation and handling of leak-proof, waterproof and so on. Mainly plastic sheets, rubber, asphalt coating, etc., these synthetic organic materials are often referred to as flexible membrane, mainly for horizontal seepage control, the current domestic research has begun to use for vertical seepage. Commonly used flexible film are mainly HDPE, LDPE, PVC, CPE, CSPE, plasticized polyolefin ( ELPO), ethylene-propylene rubber (EPDM), neoprene (CBR), butene rubber (PBR), thermoplastic elastomers, and epichlorohydrin rubber. Flexible membrane impermeable materials usually have very low permeability, the permeability coefficient of up to 10cm / s. Among them, the permeability coefficient of HDPE reaches 10cm / s or even lower, which is the most widely used landfill anti-seepage flexible membrane material