Aquaculture Impermeable HDPE Membrane

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Aquaculture Impermeable HDPE Membrane

Properties	Test Method ASTM	Test Value
Properties	Test Method ASTM	0.75mm	1.0mm	1.25mm	1.50mm	2.00mm	2.50mm	3.00mm
Thickness-mils (min.ave.)	D5199	nom. (mil)	nom. (mil)	nom. (mil)	nom. (mil)	nom. (mil)	nom. (mil)	nom. (mil)
lowest individual of 10 values		-10%	-10%	-10%	-10%	-10%	-10%	-10%
Density (min.)	D1505/D792	0.940 g/cc	0.940 g/cc	0.940 g/cc	0.940 g/cc	0.940 g/cc	0.940 g/cc	0.940 g/cc
Tensile Properties (1)(min.ave.)	D6693
* yield strength	Type IV	11 kN/m	15 kN/m	18 kN/m	22 kN/m	29 kN/m	37 kN/m	44 kN/m
* break strength		20 kN/m	27 kN/m	33 kN/m	40 kN/m	53 kN/m	67 kN/m	80 kN/m
* yield elongation		12%	12%	12%	12%	12%	12%	12%
* break elongation		700%	700%	700%	700%	700%	700%	700%
Tear Resistance (min.ave.)	D1004	93N	125N	156N	187N	249N	311N	374N
Puncture Resistance (min.ave.)	D4833	240N	320N	400N	480N	640N	800N	960N
Stress Crack Resistance (2)	D5397 (App.)	300hr.	300hr.	300hr.	300hr.	300hr.	300hr.	300hr.
Carbon Black Content -%	D1603 (3)	2.0-3.0%	2.0-3.0%	2.0-3.0%	2.0-3.0%	2.0-3.0%	2.0-3.0%	2.0-3.0%
Carbon Black Dispersion	D5596	note (4)	note (4)	note (4)	note (4)	note (4)	note (4)	note (4)
Oxidative Induction Time (OIT) (min.ave.) (5)
(a)Standard OIT	D3895	100 min.	100 min.	100 min.	100 min.	100 min.	100 min.	100 min.
(b)High Pressure OIT	D5885	400 min.	400 min.	400 min.	400 min.	400 min.	400 min.	400 min.
Oven Aging at 85? (5).(6)	D5721
(a)Standard OIT (min.ave.) -% retained after 90 days	D3895	55%	55%	55%	55%	55%	55%	55%
(b)High Pressure OIT (min.ave.) -% retained after 90 days	D5885	80%	80%	80%	80%	80%	80%	80%
UV Resistance (7)
(a)Standard OIT (min.ave.)	D3895	N.R. (8)	N.R. (8)	N.R. (8)	N.R. (8)	N.R. (8)	N.R. (8)	N.R. (8)
(b)High Pressure OIT (min.ave.) -% retained after 1600 hrs (9)	D5885	50%	50%	50%	50%	50%	50%	50%

The thickness of aquaculture impermeable HDPE membrane is generally between 0.3-0.5mm. Farmers can choose according to their own aquatic products, generally for breeding fish, eel loach, thickness of 0.5mm can be choosed. But if you impermeable membrane for culture turtle should be no thinner than 1.5mm.

The quality of aquaculture impermeable HDPE membrane, we usually recommend customers to choose impermeable membrane made of non-toxic 1005 new material. Currently on the market there are mainly two kind of impermeable membrane, one kind is made of recycled material and one kind is made of new material. Impermeable membrane made from recycled raw material is coming from waste plastic products, thus the raw materials security cannot be controled. This kind of impeermeable membrane is usually used for aquatic products such as grass carp, common carp, shrimp and the like.

Recycled material production quality and cheap impermeable membrane impermeable membrane is poorer. The new material production is made of transparent HDPE plastic particles produce large petrochemical production at home and abroad, the product performance is stable, reliable, non-toxic, no smell, can farm environmentally sensitive water impermeable membrane products. The price relative to the recovery of the new material production the material is more expensive. But the comprehensive cost is greatly reduced!

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