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HDPE Geomembrane

HDPE geomembrane called high density polyethylene geomembrane, is a kind of excellent barrier type impermeable material. It has the advantages of low cost, good anti-seepage effect, long service life, corrosion resistance, acid and alkali resistance, and anti-aging. HDPE geomembrane is widely used in anti-seepage projects such as landfills, artificial lakes, storage reservoirs, chemical tailings ponds, and aquaculture.

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HDPE Geomembrane

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HDPE Geomembrane

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Description

Product Details

Product Performance

◎ Good anti-seepage performance: water vapor permeability coefficient K≤ 1.0 × 10^-13g.cm/(cm². S.paatient

◎ High strength: tensile strength at break ≥ 28MPa.

◎ Long service life: the service life of the material can be as long as hundreds of years.

◎ Low temperature resistance: cold brittle temperature -66 ℃ ~ 77 ℃.

◎ Corrosion resistance: resistant to more than 80 kinds of strong acid, alkali lamp chemical corrosion.

◎ non-toxic harmless: harmless to the human body, do not pollute the environment, a large number of foreign used in drinking water projects.

◎ Good economic benefits: low total cost, good investment saving welding performance: pad welding, high weld strength.

Application areas

◎ Garbage treatment plant, sewage treatment plant, petrochemical, metallurgy and other environmental protection projects;

◎ Water conservancy projects such as reservoirs, dams, rivers and lakes;

◎ Subway, tunnel, underground warehouse, etc;

◎ Artificial lake, scenic spots and other garden projects;

◎ Construction market and its other waterproofing works.

Technical index of smooth HDPE geomembrane (CJ/T234-2006)

Serial Number	Indicators	Test value
Serial Number	Indicators	0.75mm	1.00mm	1.25mm	1.50mm	2.00mm	2.50mm	3.00mm
1	小 (g/cm³)	0.939
2	Tensile properties
	Yield strength (stress),N/mm	11	15	18	22	29	37	44
	Breaking strength (stress),N/mm	20	27	33	40	53	67	80
	Elongation at yield,%	12
	Elongation at break,%	700
3	Right Angle Tear Strength, N	93	125	156	187	249	311	374
4	Puncture strength, N	240	320	400	480	640	800	960
5	Resistance to Environmental Stress Cracking (Single Point Notch Dead Load Tensile Method),hr	300
6	carbon black
	Carbon black content (range),%	2.0~3.0
	carbon black dispersion	9 of the 10 observation areas should belong to level 1 or 2, and no more than 1 should belong to level 3
7	Oxidation induction time (OIT)
	Standard OIT,min	100
	High pressure OIT,min	400
8	85 Aging (minimum average value)
	After baking for 90 days, standard OIT retained%	55
	Bake 90d, high pressure OIT retention%	80
9	anti-ultraviolet intensity
	Ultraviolet irradiation 1600h, standard OIT retention%	50
	UV irradiation 1600h, high pressure OIT retention%	50
10	-70 Low temperature impact embrittlement performance	By
11	water vapor permeability coefficient	≤ 1.0 × 10^-13
12	Dimensional stability	±2

Technical index of HDPE geomembrane with rough surface (CJ/T234-2006)

Serial Number	Indicators	Test value
Serial Number	Indicators	1.00mm	1.25mm	1.50mm	2.00mm	2.50mm	3.00mm
1	Rough height, mm	0.25
2	小 (g/cm³)	0.939
3	Tensile properties
	Yield strength (stress),N/mm	15	18	22	29	37	44
	Breaking strength (stress),N/mm	10	13	16	21	26	32
	Elongation at yield,%	12
	Elongation at break,%	100
4	Right Angle Tear Strength, N	125	156	187	249	311	374
5	Puncture strength, N	267	333	400	534	667	800
6	Resistance to Environmental Stress Cracking (Single Point Notch Dead Load Tensile Method),hr	300
7	carbon black
	Carbon black content (range),%	2.0~3.0
	carbon black dispersion	9 of the 10 observation areas should belong to level 1 or 2, and no more than 1 should belong to level 3
8	Oxidation induction time (OIT)
	Standard OIT,min	100
	High pressure OIT,min	400
9	85 Aging (minimum average value)
	After baking for 90 days, standard OIT retained%	55
	Bake 90d, high pressure OIT retention%	80
10	anti-ultraviolet intensity
	Ultraviolet irradiation 1600h, standard OIT retention%	50
	UV irradiation 1600h, high pressure OIT retention%	50
11	-70 Low temperature impact embrittlement performance	By
12	water vapor permeability coefficient	≤ 1.0 × 10^-13
13	Dimensional stability	±2

Ordinary HDPE geomembrane national standard (GB/17643-2011)(CH-1 type)

Serial Number	Project	Test value
Serial Number	Thickness (mm)	0.30	0.50	0.75	1.00	1.25	1.50	2.00	2.50	3.00
1	Modelnumber (g/cm³)≥	0.94
2	Tensile yield strength (longitudinal and transverse),N/mm≥	4	7	10	13	16	20	26	33	40
3	Tensile breaking strength (longitudinal and transverse),N/mm≥	6	10	15	20	25	30	40	50	60
4	Yield elongation (longitudinal and transverse),%≥	-					1	-		11
5	Elongation at break (longitudinal and transverse),%≥	600
6	Right-angle tear load rate (longitudinal and transverse),N≥	34	56	84	115	140	170	225	280	340
7	Puncture strength, N≥	72	120	180	240	300	360	480	600	720
8	Carbon black content,%	2.0~3.0
9	carbon black dispersion	No more than 1 of the 10 data are in level 3, and level 4 and level 5 are not allowed.
10	Oxidation induction time (OIT) min	≥60
11	Low temperature impact embrittlement performance	By
12	Water vapor permeability coefficient g.cm/(cm².s.Pa)	≤ 1.0 × 10^-12
13	Dimensional stability%	±2.0