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HDPE impermeable geomembrane

Keyword: HDPE impermeable geomembrane

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　　HDPE geomembrane performance characteristics:

　　HDPE smooth (rough) geomembrane is made of high-quality high-density polyethylene resin, using the most advanced fully automatic production equipment and three-layer co-extrusion technology. All products are produced and tested according to international (GRI) standards, American (ASTM) test standards, Chinese urban construction industry standards (CJ/T2342006) and national standards (GB/T176431998) and other standards; complete specifications; smooth (rough) geomembrane thickness: 0.25~3.0mm, maximum width can reach 7.2m, which is currently the largest domestic production line.

　　Product Application:

　　As a new type of material, HDPE geomembrane has excellent anti-seepage performance, stability, and can be processed according to the actual needs of the project. It has been widely used in environmental protection, solid waste landfill, industrial chemical sewage pool, dams of water conservancy projects, anti-seepage of reservoirs, channels, reservoirs, artificial lakes, swimming pools, building roofs, underground foundations, various environmental projects, etc. as anti-seepage, waterproof, anti-corrosion, and moisture-proof materials.

　　1. Environmental protection, sanitation (such as domestic waste landfills, sewage treatment, toxic and hazardous waste treatment sites, dangerous goods warehouses, industrial waste, construction and blasting waste, etc.)

　　2. Water conservancy (such as anti-seepage, plugging, reinforcement of river, lake, reservoir and dam, anti-seepage of canals, vertical core walls, slope protection, etc.)

　　3. Municipal engineering (highways, subways, underground engineering and rooftop reservoirs of buildings, anti-seepage of rooftop gardens, lining of sewage pipes, etc.)

　　4. Gardens (artificial lakes, ponds, pond linings and slope protection of golf courses, etc.) /p>

　　5. Petrochemical (anti-seepage of oil tanks in chemical plants, refineries, gas stations, linings of chemical reaction tanks, sedimentation tanks, secondary linings, etc.) 6. Mining (low lining anti-seepage of washing tanks, heap leaching tanks, ash dumps, dissolution tanks, sedimentation tanks, yards, tailings, etc.)

　　7. Transportation facilities (foundation reinforcement of highways, anti-seepage of culverts)

　　8. Agriculture (anti-seepage of reservoirs, drinking water pools, water storage ponds, irrigation systems)

　　9. Aquaculture (linings of fish ponds, shrimp ponds, etc.) Anti-seepage, anti-corrosion, anti-leakage, reinforcement, and collection of leachate for other facilities. Temporary container structures, prefabrication of special components, etc.

　　10. Salt industry (salt field crystallization pool, brine pool cover, salt film, salt pool plastic film)

　　Technical indicators 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	Minimum density (g/cm2)	0.939
2	Stretching performance
	Yield strength (stress), N/min	11	15	18	22	29	37	44
	Breaking strength (stress), N/min	20	27	33	40	53	67	80
	Yield elongation, %	12
	Elongation at break,%	700
3	Right angle breaking strength, N	93	125	156	187	249	311	374
4	Puncture intensity, N	240	320	400	480	640	800	960
5	Environmental stress cracking resistance (single point incision constant load tensile method), hr	300
6	Carbon black
	Carbon black content (range), %	2.0 ~ 3.0
	Carbon black dispersion	9 out of 10 observation areas should belong to level 1 or 2, and no more than 1 should belong to level 3
7	Oxidative induction time (OIT)
	Standard OIT, min	100
	High voltage OIT,min	400
8	85 baking aging (minimum average)
	After baking for 90d. Standard OIT retention%; or	55
	Bake for 90d, high-pressure OIT retains %	80
9	UV resistance
	UV irradiation 1600h, standard OI Ding retention%; or	50
	Ultraviolet irradiation 1600h, high pressure OIT retention%	50
10	-70 low temperature impact magic performance	through
11	water vapor permeability coefficient	≤1.0x10-13
12	Dimensional stability	±2

　　Technical indicators of rough surface HDPE geomembrane (CJ/T234-2006):

Serial number	Indicator	Test value
Serial number	Indicator	1.00mm	1.25mm	1.50mm	2.00mm	2.50mm	3.00mm
1	Rough height/ mm	0.25
2	Minimum density (g/cm2)	0.939
3	Stretching performance
	Yield strength (stress), N/min	15	18	22	29	37	44
	Breaking strength (stress), N/min	10	13	16	21	26	32
	Yield elongation, %	12
	Elongation at break,%	100
4	Right angle tear strength, N	125	156	187	249	311	374
5	Puncture intensity, N	267	333	400	534	667	800
6	Environmental stress cracking resistance (single point incision constant load tensile method), hr	300
7	Carbon black
	Carbon black content (range), %	2.0 ~ 3.0
	Carbon black dispersion	9 out of 10 observation areas should belong to level 1 or 2, and no more than 1 should belong to level 3
8	Oxidative induction time (OIT)
	Standard OIT, min	100
	High voltage OIT,min	400
9	85 roasting and aging (minimum average)
	After baking for 90 days, standard OIT retention%; or	55
	Bake for 90 days, high pressure OIT retention%	80
10	UV resistance
	UV irradiation 1600h, standard OIT retention %; or	50
	UV irradiation 1600h, high-voltage OIT retention%	50
11	-70 low-temperature impact magic performance	Pass
12	Water vapor permeability coefficient	≤1.0x10-13
13	Dimensional stability	±2