HDPE Smooth Surface Geomembrane

Product Description

HDPE Smooth Surface Geomembrane

Product Introduction：

HDPE smooth geomembrane is produced by 95% of the original resin heating stabilizer and antioxidantthrough blow molding process or calendering process, which has the effect of impermeability and isolation.

Function And Use：

Environmental protection projects: landfills, sewage treatment plants, chemical wastewater tanks, power plant regulating tanks, industrial and medical waste landfills, ash and slag sites, and evaporation pond anti-seepage.Petrochemical: oil storage tanks in petrochemical refineries, oil well sludge tanks, chemical reaction tanks, sedimentation tanks, tailings dam bottom linings, and secondary lining anti-seepage.Chemical mining: ash and slag sites, red mud piles, heap leaching ponds, dissolution ponds, sedimentation tanks, and tailings dam bottom lining anti-seepage.Aquaculture: lining of aquaculture ponds, fish ponds, shrimp ponds, sea cucumber ponds, slope protection, and other anti-seepage works.Construction projects: subways, underground garages, roof gardens, sewage pipelines, drainage water tanks, and culvert anti-seepage.Agriculture, forestry and animal husbandry: anti-seepage of reservoirs, cisterns, drinking water tanks and irrigation systems.Salt chemical industry: salt plant crystallization tanks, bittern brine tanks, salt films, and other anti-seepage works.

Technical Indicators:

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

Item	Unit	Technical data
Thickness	mm	0.30	0.50	0.75	1.00	1.25	1.50	2.0	2.5	3.0
Density	g/cm³	≥0.940
Tensile stress At yield(MD/TD)	N/mm	≥4	≥7	≥10	≥13	≥16	≥20	≥26	≥33	≥40
Breaking strength(MD/TD)	N/mm	≥6	≥10	≥15	≥20	≥25	≥30	≥40	≥50	≥60
Yield elongation(MD/TD)	%	一	一	一	11
Elongation a break(MD/TD)	%	600
Strength at tear(righ-angle Tear)(MD/TD)	N	≥34	≥56	≥84	≥115	≥140	≥170	≥225	≥280	≥340
Antipunture strength	N	≥72	≥120	≥180	≥240	≥300	≥360	≥480	≥600	≥720
Carbon black content	%	2.0~3.0
Carbon black distribute	/	In 10 date,3 degree no more than 1,4 and 5 degree not allowed
Antioxidation time(OIT)	min	≥60
Anti low temperature crispy ability	/	Pass
Permeabilt coefficient of vappour	g.cm/ (cm².s.Pa)	≤1.0×10-13
Dimensionalstability	%	±2.0

Environmental protection High density polyethylene HDPE geomemofilm(GB/T 17643-2011 GH-2S type technical indicators)

Item	Unit	Technical data
Thickness	mm	0.75	1.0	1.25	1.5	2.0	2.5	3.0
Density	g/cm³	≥0.940
Tensile stress At yield(MD/TD)	N/mm	≥11	≥15	≥18	≥22	≥29	≥37	≥44
Breaking strength(MD/TD)	N/mm	≥20	≥27	≥33	≥40	≥53	≥67	≥80
Yield elongation(MD/TD)	%	≥12
Elongation at break(MD/TD)	%	≥700
Strength at tear(right-angle Tear)(MD/TD)	N	≥93	≥125	≥160	≥190	≥250	≥315	≥375
Antipunture strength	N	≥240	≥320	≥400	≥480	≥640	≥800	≥960
Tensile load stress cracking	h	≥300
Carbon black content	%	2.0-3.0
Carbon black distribute	/	In 10 date,3 degree no more than 1,4 and 5 degree not allowed
Antioxidation time(OIT)	min	≥100 normal pressure oxidation time
Antioxidation time(OIT)	min	≥400 high pressure oxidation time
85℃ Heat anti-aging	%	≥55
Uvioresistant	%	50
Thickness limit deviation	%	-10

Plain HDPE geomembrane for landfills(CJ/T234-2006 Technical Index)(equivalent to the US GRI-GM13 standard)

Thickness	mm	0.75	1.0	1.25	1.5	2.0	2.5	3.0
Density	g/cm³	≥0.939
Tensile stress At yield(MD/TD)	N/mm	≥11	≥15	≥18	≥22	≥29	≥37	≥44
Breaking strength(MD/TD)	N/mm	≥20	≥27	≥33	≥40	≥53	≥67	≥80
Yield elongation(MD/TD)	%	≥12
Elongation at break(MD/TD)	%	≥700
Strength at tear(right-angle Tear)(MD/TD)	N	≥93	≥125	≥156	≥187	≥249	≥311	≥374
Antipunture strength	N	≥240	≥320	≥400	≥480	≥640	≥800	≥960
Environmental stress crack resistance	h	≥300
Carbon black content	%	2.0-3.0
Carbon black distribute	/	In 10 date,3 degree no more than 1,4 and 5 degree not allowed
Antioxidation time(OIT)	min	≥100 normal pressure oxidation time
Antioxidation time(OIT)	min	≥400 high pressure oxidation time
85℃ Heat anti-aging	%	≥55
Uvioresistant	%	50
Dimensional stability	%	±2.0