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High-density polyethylene geomembrane lining

High-density polyethylene (HDPE) geomembrane lining is a waterproof barrier material made from high-density polyethylene resin. It is an essential product for lining projects.

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PRODUCT DETAILS

Product Introduction

High-density polyethylene (HDPE) geomembrane lining is a waterproof barrier material made from high-density polyethylene resin. It is an essential product for lining projects.

Performance characteristics

1. No heat treatment required; a new type of building material.

2. Excellent mechanical properties, good permeability, and resistance to corrosion and aging.

3. Strong resistance to burial and corrosion; loose structure with excellent drainage performance.

4. High coefficient of friction and tensile strength, providing geosynthetic reinforcement.

5. Functions including isolation, filtration, drainage, protection, stabilization, and reinforcement.

6. Adaptable to uneven base layers, resistant to construction damage, and exhibits low creep.

7. Good overall continuity, lightweight, and easy to install.

8. As a permeable material, it possesses excellent filtration and isolation functions; strong puncture resistance provides excellent protection.

Purpose of action

Environmental protection engineering: landfill, sewage treatment plant, chemical wastewater pond, power plant regulating pond, industrial/medical waste landfill, ash field, evaporation pond seepage control.

Petrochemical: petrochemical refinery tanks, oil well sludge ponds, chemical reaction ponds, sedimentation ponds, tailings dams, bottom lining, secondary lining seepage control. Secondary lining seepage control.

Chemical and mining industry: the bottom lining seepage control of ash field, red mud pile, heap leaching pool, dissolving pool, sedimentation pool, tailings dam.

Aquaculture: lining of aquaculture ponds, fish ponds, shrimp ponds, seepage control of sea cucumber rings and slopes.

Construction engineering: subway, underground garage, roof garden, sewage pipe, seepage control of dredging culvert.

Agriculture, forestry and animal husbandry: seepage control of reservoirs, cisterns, drinking water pools and irrigation systems.

Salt chemical industry: seepage control of salt crystallization ponds, brine ponds and salt membranes.

Technical indicators

Ordinary high density polyethylene HDPE geomemofilm (GB/T 17643-2011 GH-1 type technical specifications)

Item	Indicator
Thickness m m	0.30	0.50	0.75	1.00	1.25	1.50	2.00	2.50	3.00
densities g/cm³	≥0.940
Tensile yield strength (longitudinal and transverse) N/mm	≥4	≥7	≥10	≥13	≥16	≥20	≥26	≥33	≥40
Tensile breaking strength (longitudinal and transverse) N/mm	≥6	≥10	≥15	≥20	≥25	≥30	≥40	≥50	≥60
Yield elongation (longitudinal and transverse) %				≥11
Elongation at break (longitudinal and transverse) %	≥600
Right angle tearing load (longitudinal and transverse) N	≥34	≥56	≥84	≥115	≥140	≥170	≥225	≥280	≥340
Puncture strength N	≥72	≥120	≥180	≥240	≥300	≥360	≥480	≥600	≥720
Carbon black content %	2.0-3.0
Carbon Black Dispersibility	No more than 1 out of 10 data at level 3, not allowed at levels 4 and 5
Atmospheric pressure oxidation induction time (OIT)min	≥60
Low temperature impact embrittlement properties	pass
water vapor permeability coefficient g ·cm/(cm2 · s ·Pa)	≤1.0×10-13
Dimensional stability %	±2.0

Rough high density polyethylene geomembrane for environmental protection (GB/T 17643-2011 GH-2T1.GH-2T2 type technical index)

Item	Indicator
thicknesses mm	0.75	1.00	1.25	1.50	2.00	2.50	3.00
Densities g/cm³	≥0.940
Tensile yield strength (longitudinal and transverse) N/mm	≥11	≥15	≥18	≥22	≥29	≥37	≥44
Tensile breaking strength (longitudinal and transverse) N/mm	≥20	≥27	≥33	≥40	≥53	≥67	≥80
Yield elongation (longitudinal and transverse) %	≥12
Elongation at break (longitudinal and transverse) %	≥700
Right angle tearing load (longitudinal and transverse) N	≥93	≥125	≥160	≥190	≥250	≥315	≥375
puncture strength N	≥240	≥320	≥400	≥480	≥640	≥800	≥960
Stress cracking under tensile load		≥300
Carbon black content %	2.0~3.0
Carbon Black Dispersibility	No more than 1 out of 10 data at level 3, not allowed at levels 4 and 5
Atmospheric pressure oxidation induction time (OIT)min	Atmospheric pressure oxidation induction time ≥ 100
Atmospheric pressure oxidation induction time (OIT)min	High pressure oxidation induction time ≥ 400
85°C heat aging %	≥55
anti-ultraviolet	≥50