**Details
BPM geomembrane is made from high grade Polyethylene raw material,adding
carbon black,antioxidant,anti-aging and UV-resistance component. It adopted the first class
automatic production equipment and three-layer pressing technology. All products are in accor-
dance with GRI and ASTM test standard.
**Feature
- Easy process and high output rates
- Excellent distribution of carbon black
- Consistent quality and low failure rate
- Excellent resistance and good waterproof ability
- Good welding
**Welding procedure
1. Hot wedge welding process including: pressure adjustment,temperature setting,overlap checking,insert membrane into welding machine,starting motor,pressing and welding.
2. Prior to seaming,the seaming area is free of moisture,dust,dirt,sand or debris of any nature.
3. Before welding, test seam by one 0.9m×0.3m specimen and overlap not less than 10cm.After that,test the peel strength and shear strength.When approved,official welding can be performed according to the prior settings and mark the date,time and ambient temperature.
4. Seam line should be tidy and free of slide welding.
5. No wrinkle is allowed. When laying geomembrane,variations should be set aside according to temperature and property requirement.
6. After welding,test should be adopted to examine the welding quality.
**Welding machine
Application
1.Applied to environment projection and sanitation ,water conservancy ,municipal projects ,landscaping ,petrochemical industry ,mining ,salt industry ,agriculture ,aquaculture
2.Applied to landfill and mining
3.Applied to waterproofing lining of dam or canal and anti-pollution of waste plant
**Technical Data(GRI GM13 Virgin material standard)
Test |
Unit |
Standard |
BMS75 |
BMS10 |
BMS15 |
BMS20 |
BMS30 |
Test Frequency |
Mechanical |
Thickness |
mm |
D5199 |
0.75 |
1.00 |
1.50 |
2.00 |
3.00 |
Per roll |
Properties |
Density |
g/cc |
D1505/D792 |
0.94 |
90,000 kg |
|
Tensile Properties |
|
D 6693 |
|
|
|
|
|
|
|
· yield strength |
kN/m |
Type IV |
11 |
15 |
22 |
29 |
44 |
9,000 kg |
|
· break strength |
kN/m |
|
20 |
27 |
40 |
53 |
80 |
|
|
· yield elongation |
% |
|
12 |
12 |
12 |
12 |
12 |
|
|
· break elongation |
% |
|
700 |
700 |
700 |
700 |
700 |
|
|
Tear Resistance |
N |
D 1004 |
93 |
125 |
187 |
249 |
374 |
20,000 kg |
|
Puncture Resistance |
N |
D 4833 |
240 |
320 |
480 |
640 |
960 |
20,000 kg |
|
Stress Crack Resistance |
hr. |
D 5397 |
300 hr. |
per GRI GM-10 |
|
Carbon Black Content |
% |
D 4218 |
2.0-3.0% |
9,000 kg |
|
Carbon Black Dispersion |
|
D 5596 |
For 10 different views: 9 in Categories 1 or 2 and 1 in Category 3 |
20,000 kg |
|
Reference |
Oxidative Induction Time |
min |
D 3895 |
100 min. |
90,000 kg |
Properties |
(a) Standard OIT |
D 5885 |
400 min. |
|
(b) High Pressure OIT |
|
|
|
Oven Aging at 85°C retained |
% |
D 5721 |
55% |
per each |
|
after 90 days |
|
(a) Standard OIT - % |
D 3895 |
80% |
formulation |
|
(b) High Pressure OIT - % |
D 5885 |
|
|
|
UV Resistance |
% |
|
|
per each |
|
High Pressure OIT - % retained |
D 5885 |
50% |
formulation |
|
after 1600 hrs |
|
**Production process
**Certification