Waterproof geomembrane is divided into "HDPE" composite geomembrane and "EVA" waterproof geomembrane, also known as "high-density polyethylene film", is a waterproof and barrier material produced from (medium) high-density polyethylene resin. Its HDPE is a thermoplastic resin with high crystallinity and non polarity. The appearance of HDPE in its original state is milky white, with a certain degree of translucency on its thin cross-section.
1,It is a flexible waterproof material with a high anti-seepage coefficient.
2,It has good heat and cold resistance, and its operating environment temperature is high temperature 110 ºC and low temperature -70 ºC.
3,It has good chemical stability and can resist strong acid, alkali and oil corrosion. It is a good anti-corrosion material.
4,It has high tensile strength, which enables it to meet the needs of high standard engineering projects.
5,It has strong weather resistance, strong anti-aging performance, and can be exposed for a long time to maintain the original performance.
6,Having strong tensile strength and elongation at break, HDPE geomembrane can be used in various harsh geological and climatic conditions. Strong adaptability to geological uneven settlement strain.
7,Made of high-quality native plastic and carbon black particles without any preservatives.
Technical index
| Ordinary HDPE Geomembrane: GB/T 17643-2011 |
| No. |
Item |
Index |
| Thickness,mm |
0.30 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| 1 |
Density,g/cm2 |
>=0.940 |
| 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 |
Elongation at yield (longitudinal and transverse),% |
- |
- |
- |
>=11 |
| 5 |
Elongation at break (longitudinal and transverse),% |
>=600 |
| 6 |
Right angle tear load (longitudinal and transverse),N |
>=34 |
>=56 |
>=84 |
>=115 |
>=140 |
>=170 |
>=225 |
>=280 |
>=340 |
| 7 |
Puncture resistance,N |
>=72 |
>=120 |
>=180 |
>=240 |
>=300 |
>=360 |
>=480 |
>=600 |
>=720 |
| 8 |
Carbon black content,% |
2.0~3.0 |
| 9 |
Carbon black dispersibility |
No more than 1 level 3 of 10 data, and levels 4 and 5 are not allowed. |
| 10 |
Atmospheric pressure oxidation induction time(OIT),min |
>=60 |
| 11 |
Low temperature impact embrittlement performance |
Pass |
| 12 |
Water vapor permeability coefficient,g·cm/(cm2·s·Pa) |
<=1.0×10-13 |
| 13 |
Dimensional stability,% |
±2.0 |
| Note: Technical performance indicators not listed in the table for thickness specifications are required to be implemented using the interpolation method. |
| Waterproof geomembrane: TB/T3360.1-2014 |
| No. |
Item |
Index |
| EVA |
ECB |
PE |
| 1 |
Tensile property |
Tensile strength at break(MPa) |
>=18 |
>=17 |
>=18 |
| Elongation at break(%) |
>=650 |
>=600 |
>=600 |
| 2 |
Tear strength( KN/m) |
>=100 |
>=95 |
>=95 |
| 3 |
Impermeability(0.3MPa/24h) |
No-leakage |
No-leakage |
No-leakage |
| 4 |
Low temperature bending(-35ºC) |
No cracks |
No cracks |
No cracks |
| 5 |
Heating expansion amount |
Extend(mm) |
<=2 |
<=2 |
<=2 |
| Shrink(mm) |
<=6 |
<=6 |
<=6 |
| 6 |
Hot air aging(80ºC×168h) |
Tensile strength at break(MPa) |
>=16 |
>=14 |
>=15 |
| Elongation at break(%) |
>=600 |
>=550 |
>=550 |
| 7 |
Alkali resistance (saturated Ca(OH)2 solution×168h) |
Tensile strength at break(MPa) |
>=17 |
>=16 |
>=16 |
| Elongation at break(%) |
>=600 |
>=600 |
>=550 |
| 8 |
Artificial aging |
Breaking tensile strength retention rate(MPa) |
>=80 |
>=80 |
>=80 |
| Retention rate of elongation at break(%) |
>=70 |
>=70 |
>=70 |
| 9 |
Puncture strength |
Thickness1.5mm(N) |
>=300 |
>=300 |
>=300 |
| Thickness2.0mm(N) |
>=400 |
>=400 |
>=400 |
| Thickness2.5mm(N) |
>=500 |
>=500 |
>=500 |
| Thickness3.0mm(N) |
>=600 |
>=600 |
>=600 |
1,We have professional warehouse management system, not only keep clean and dry, but also ensure the packing. All the goods stock respectively according to different orders
2,Standard export packing, or customized packing as your request.
Current affairs information
On May 28, 2023, local government departments and project leaders of well-known domestic construction engineering companies visited Chuangwan for inspection and guidance. All Chuangwan people warmly welcomed them with a full spirit.
Chairman Feng Xin also gave an important speech at the meeting, stating that the successful trial run of the two production lines cannot be separated from the unremitting efforts of all Chuangwan people and the strong support of the industry, marking a new milestone for the company's production technology and capacity.
| Name |
Anhui Chuangwan New Materials Co., Ltd. |
| Add: |
No.9 Penglin Road, Industrial New Town, Dashu Town, Quanjiao County, Chuzhou City, Anhui Province. |
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