Impermeable membrane

Impermeable membrane standard name is polyethylene geomembrane, mostly milky white translucent to opaque thermoplastic resin material - made of polyethylene resin. Polyethylene is a polymer, is non-toxic, tasteless, odorless white particles, the melting point of about 110 ℃ -130 ℃, the relative density of 0.918-0.965; impermeable membrane has good heat resistance and cold resistance. Good chemical stability, high rigidity and toughness, good mechanical strength, resistance to environmental stress cracking resistance, tear strength and good performance, as the density increases, the mechanical properties and barrier properties will be increased, heat, and tensile higher strength; acid, alkali, organic solvents, such as corrosion. Impermeable membrane is pe film as a substrate, and geotextile composite made of impermeable material, its performance depends on pe impermeable membrane. Pe membrane impermeable membrane applications, mainly polyvinyl chloride and polyethylene, EVA (ethylene / vinyl acetate copolymer), which flexible material is a polymer chemistry, the proportion of small, strong extension, deformation capacity to adapt to high , corrosion resistance, low temperature, frost performance. The main mechanism of the non-permeable plastic film is cut off earth leakage passage, with its greater tensile strength and elongation to withstand water pressure and adapt to dam deformation; application 1, environmental protection, sanitation (Landfill anti- infiltration and leachate collection isolated by filtration systems, sewage treatment pond seepage and soft base reinforcement, Power conditioning tank seepage, industrial sewage tank seepage, chemical cesspool seepage, hospital hazardous solid waste landfill seepage and geotextile reinforcement, Artificial wetlands impermeable, impermeable membrane water purification treatment systems, isolation, filtration, etc.) 2, hydraulic engineering (artificial lake seepage, artificial river seepage geomembrane HDPE geomembrane for the Reservoir and dam seepage basin seepage, seepage canals, water diversion culvert seepage, slope protection; geotextile for dam reinforcement, drain groundwater drainage, guide row down, etc.) 3, municipal building works Drainage Board drainage tunnel filtration, underground construction of drainage blood pressure, waterproof blanket, waterproof blanket building basement seepage and artificial river seepage, HDPE impermeable membrane impermeable roof planting, underground tunnels seepage, roof garden seepage and anti-puncture damage plant roots, high-grade plant and warehouse floor impermeable to moisture, corrosion lining sewers; external water diversion buck and efflux, soft soil foundation reinforcement and drainage projects and other types of seepage 4, landscape and greening works (artificial lake seepage, artificial Lake revetment foundation reinforcement and guiding the air guide, wetland seepage, river seepage, slope stability, strengthen dams, reservoirs, seepage, seepage lake golf course, depression green transformation, saline land and gravel Planting Modification in the mountain slope reinforcement, green lawn waterproof etc.) 5, petrochemical systems (chemical cesspool seepage, refinery sewage tank seepage, tank foundation seepage, gas station storage tanks and refinery oil seepage tank seepage, chemical reaction tank seepage, sedimentation seepage, tank seepage isolated cesspool printing, plating pickling tank seepage corrosion, pipe lining, etc.) 6, mining (washing tank seepage, anti heap leaching pool seepage, seepage ash heap, dissolving tank seepage, sedimentation tank seepage, tailings yard seepage, sewage storage tank seepage, etc.) 7, basic road traffic facilities geogrid reinforcement road, Geocell Slope protection, drainage board, geotextile slope lining the back wall decompression diversion of groundwater, stormwater drainage board high-speed road guide ranked drainage, to prevent the tires with the ground water floating system, the medial side of the mountain road rainwater seepage ditch diversion; railway roadbed enhancement, ballast following diversion seepage reinforcement, culvert and tunnel seepage reinforcement of groundwater discharge guide and moisture protection circuit) 8, agriculture (reservoir seepage, water tank seepage, reservoir seepage, waste treatment plant seepage; seepage irrigation system) 9, HDPE impermeable membrane, HDPE geomembrane, aquaculture (intensive farming tank seepage, industrial pond seepage, seepage ponds, high seepage ponds, sea ??cucumber circle slope protection, aquaculture diversion channel seepage, crawling fish in captivity envelope, etc.) 10, Salt (salt crystallization tank seepage isolation, brine tank seepage, solar salt membrane - Salt Linen isolation accelerate water evaporation, acceleration brine crystallization speed to increase the unit production of salt, salt pond plastic membrane thatch) national standard parameters in Table GB / T (17643-1998) No. Item (Unit) Indicators GH-1 GH-2 1 Tensile strength Mpa ≥17 ≥25 ?? 2 Elongation at break% ≥450 ≥550 3 right angle tear strength N / mm ≥80 ≥110 4 carbon black content% ≥2 5 ESCR oxidation induction time min ≥20 7 steam F20h ≥1500 6 200 ℃ when permeability coefficient g. cm / (cm.s.Pa) ≤1.0 × 10-12 ≤1.0 × 10-16 8 -70 ℃ low-temperature impact embrittlement dimensional stability performance by 9% ± 3 Note: Black geomembrane requirements HDPE (high-density polyethylene ) waterproof, impermeable barrier material such as environmental protection nets, waterproof net, building net, mining equipment (tailings dam), municipal engineering, hydraulic engineering, cesspools, chemical waste, waste, sludge agricultural farming (such as septic farms pond) aquaculture pond water seepage underground base, the plant roof garden roof moisture artificial lake, river, highway slope