Performance:
HDPE geomembrane is also known as high-density polyethylene geomembrane, HDPE Waterproof
geomembrane,and HDPE anti-seepage geomembrane. Its English name is "High Density Polyethylene
Impermeable Membrane", abbreviated as "HDPE geomembrane". It is a plastic roll material composed
of HDPE, which is a high crystallinity, non-polar thermoplastic resin. The appearance of HDPE in its
original state is milky white, with a certain degree of translucency on its thin cross-section.
Characteristics:
HDPE geomembrane has excellent impact resistance, which is why it works at room temperature and
even at low temperatures of -40F. HDPE is a non-toxic, odorless, and odorless white particle of polymer,
with a melting point of approximately 110 ºC -130 ºC and a relative density of 0.918-0.965; Has good heat
and cold resistance. Good chemical stability, high rigidity and toughness, good mechanical strength,
good resistance to environmental stress cracking and tear strength. As the density increases, the
mechanical and barrier properties will correspondingly improve, and the heat resistance and tensile
strength will also be higher; Can withstand corrosion from acids, alkalis, organic solvents, etc.
Engineering Application:
1. Environmental protection and sanitation (such as domestic waste landfills, sewage treatment plants,
power plant regulating ponds, underground foundation waterproofing and anti-seepage, factory roof
moisture-proof industries, hospital solid waste, etc.);
2. Water conservancy (such as seepage prevention, leakage stoppage and reinforcement of Rivers and
Lakes, reservoirs, dams, seepage prevention of canals, vertical core walls, slope protection, etc.);
3. Municipal engineering (underground engineering of highways, subways, buildings, planting roofs, anti-
seepage of roof gardens, lining of sewage pipes, etc.);
4. Gardens (roof gardens, artificial lakes, waterways, reservoirs, bottom lining and slope protection of golf
courses,waterproof and moisture-proof green lawns, etc.);
5. Petrochemical (anti-seepage of oil storage tanks in chemical plants, refineries, gas stations, lining of
chemical reaction tanks, sedimentation tanks, secondary lining, etc.);
6. Mining (washing pool, heap leaching pool, ash yard, dissolution pool, sedimentation tank, storage
yard, bottom lining anti-seepage of tailings, etc.);
7. Transportation facilities (foundation reinforcement of highways, anti-seepage of culverts);
8. Agriculture (reservoirs, drinking water tanks, storage ponds, anti-seepage of irrigation systems,
agricultural breeding such as pig farm septic tanks);
9. Aquaculture industry (aquaculture ponds, intensive and factory aquaculture ponds, lining of fish ponds,
shrimp ponds, sea cucumber enclosure slope protection, etc.);
10. Salt industry (salt crystallization tank, brine tank cover, salt geomembrane, salt tank plastic geomembrane).
Development History:
HDPE anti-seepage geomembrane was first applied in Germany in 1960, driving the use of it throughout
Europe. Then it spread to Africa, Australia, and North America. PVC anti-seepage geomembrane was
developed by the United States during the same period and quickly spread to Canada, the former Soviet
Union, Taiwan, and Europe. In the early 1980s, the United States and Germany benefited from the support
of government legislation for significant development.
Taking the sales of geomembranes in North America in 1995 as an example, HDPE accounted for about
40%, VFPE accounted for about 20%, and others (CSPE, FPP, etc.) accounted for about 15%. It can be
seen that HDPE anti-seepage geomembrane has accounted for about one-third of the total amount of
geotextile geomembrane.
HDPE anti-seepage geomembrane was introduced to China in 1992. After nearly 20 years of
development, it has been widely used in various anti-seepage projects, such as landfill sites, tailings
treatment, high-speed rail anti-skid layer, petrochemical and other industries.
Production process flow:
The production of HDPE geomembrane is now basically a geomembrane blowing process, which
uses high-density polyethylene as the main raw material, together with special plastic additives,
color masterbatch, anti-aging agent and other auxiliary materials, and is made by feeding, melting
and plasticizing, extrusion blow molding, traction, winding and other processes. The specific
production process is as follows:
1.High density polyethylene raw materials, special plastic additives, color masterbatch, anti-aging
agent, etc., are mixed and stirred with an electric plastic mixer;
2.Polyethylene raw materials are added to the plastic extruder hopper, and through the conveying,
compression, and metering functions of the rotating screw of the extruder, the material is melted
and plasticized, and the molten tube blank is extruded from a circular die;
3.Polyethylene raw materials enter the screw barrel of the plastic extruder, are heated, plasticized,
melted, and extruded into a film bubble, which is blown and expanded outside the machine head
mold;
4.After melting and sealing the outlet end of this tube blank, compressed air is blown into the vent
hole in the center of the mold. The tube blank gradually expands under the action of compressed
air, and at the same time, the outer part of the tube blank is forced to cool. At this time, force is
applied to one end of the tube blank melting and sealing to make it move forward at a uniform
speed, and a continuous cylindrical geomembrane can be obtained at this time;
5.Cut open the double-layer folded geomembrane from the middle and enter the membrane
spreading frame for single-sided unfolding;
6.The traction roller is equipped with an automatic meter recording device for automatic meter
recording and rewinding of the product;
7.During the production process, three samples are generally taken from each piece for random
inspection, and they are stored after passing the inspection.
Product Naming:
| Classification |
Code |
Main raw materials |
| Ordinary high-density polyethylene geomembrane |
GH-1 |
Medium density polyethylene resin,High density polyethylene resin |
| Smooth High Density Polyethylene Geomembrane for Environmental Protection |
GH-2S |
| Single rough surface high-density polyethylene geomembrane for environmental protection |
GH-2T1 |
| Double rough surface high-density polyethylene geomembrane for environmental protection |
GH-2T2 |
| Low density polyethylene geomembrane |
GL-1 |
Low density polyethylene resin, linear low density polyethylene resin, ethylene copolymer, etc |
| Linear Low Density Polyethylene Geomembrane for Environmental Protection |
GL-2 |
Linear low-density polyethylene resin, metallocene linear low-density polyethylene, etc |
Example:
A Width 6000mm, thickness 1.25mm, environmentally friendly glossy high-density polyethylene
geomembrane, which can be expressed as: GH-2S 6000/1.25 GB/T 17643-2011
Technical Parameter:
Ordinary HDPE Geomembrane(GH-1 Type): 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/cm3 |
>=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. |
Smooth High Density Polyethylene Geomembrane for Environmental Protection(GH-2S Type)
--GB/T 17643-2011
| Project |
Index |
| Thickness,mm |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| Density,g/cm3 |
≥0.94 |
| Tensile yield strength (longitudinal and transverse),N/mm |
≥11 |
≥15 |
≥18 |
≥22 |
≥29 |
≥37 |
≥44 |
| Tensile breaking strength (longitudinal and transverse),N/mm |
≥20 |
≥27 |
≥33 |
≥40 |
≥53 |
≥67 |
≥80 |
| Elongation at yield (longitudinal and transverse),% |
≥12 |
| Elongation at break (longitudinal and transverse),% |
≥700 |
| Right angle tear load (longitudinal and transverse),N |
≥93 |
≥125 |
≥160 |
≥190 |
≥250 |
≥315 |
≥375 |
| Puncture resistance,N |
≥240 |
≥320 |
≥400 |
≥480 |
≥640 |
≥800 |
≥960 |
| Tensile load stress cracking (notch constant load tensile method) h |
- |
≥300 |
| Carbon black content,% |
2.0-3.0 |
| Carbon black dispersibility |
No more than 1 level 3 of 10 data, and levels 4 and 5 are not allowed. |
| Oxidation induction time (OIT) min |
Atmospheric pressure oxidation induction time≥100 |
| High pressure oxidation induction time≥400 |
| 85 ºC thermal aging (atmospheric pressure OIT retention rate after 90 days)% |
≥55 |
| UV resistance (OIT retention rate after 1600 hours of UV irradiation)% |
≥50 |
| Note: The technical performance indicators for thickness specifications not listed in the table are required to be executed using interpolation method. |
| Either atmospheric pressure OIT (retention rate) or high-pressure OIT (retention rate) can be tested. |
Roughened high-density polyethylene geomembrane for environmental protection
(GH-2T1,GH-2T2 types) -- GB/T 17643-2011
| Project |
Index |
| Thickness,mm |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| Density,g/cm3 |
≥0.94 |
| Gross sugar height, mm |
≥0.25 |
| Tensile yield strength (longitudinal and transverse),N/mm |
≥11 |
≥15 |
≥18 |
≥22 |
≥29 |
≥37 |
≥44 |
| Tensile breaking strength (longitudinal and transverse),N/mm |
≥8 |
≥10 |
≥13 |
≥16 |
≥21 |
≥26 |
≥32 |
| Elongation at yield (longitudinal and transverse),% |
≥12 |
| Elongation at break (longitudinal and transverse),% |
≥100 |
| Right angle tear load (longitudinal and transverse),N |
≥93 |
≥125 |
≥160 |
≥190 |
≥250 |
≥315 |
≥375 |
| Puncture resistance,N |
≥200 |
≥270 |
≥335 |
≥400 |
≥535 |
≥670 |
≥800 |
| Tensile load stress cracking (notch constant load tensile method) h |
≥300 |
| Carbon black content,% |
2.0-3.0 |
| Carbon black dispersibility |
No more than 1 level 3 of 10 data, and levels 4 and 5 are not allowed. |
| Oxidation induction time (OIT) min |
Atmospheric pressure oxidation induction time≥100 |
| High pressure oxidation induction time≥400 |
| 85ºC thermal aging (atmospheric pressure OIT retention rate after 90 days)% |
≥55 |
| UV resistance (OIT retention rate after 1600 hours of UV irradiation)% |
≥50 |
| Note: The technical performance indicators for thickness specifications not listed in the table are required to be executed using interpolation method. |
| Either atmospheric pressure OIT (retention rate) or high-pressure OIT (retention rate) can be tested. |
Low density polyethylene geomembrane (GL-1 type) --GB/T 17643-2011
| Project |
Index |
| Thickness,mm |
0.30 |
0.50 |
0.75 |
1.00 |
1.25 |
1.50 |
2.00 |
2.50 |
3.00 |
| Density,g/cm3 |
≤0.939 |
| Tensile breaking strength (longitudinal and transverse),N/mm |
≥6 |
≥9 |
≥14 |
≥19 |
≥23 |
≥28 |
≥37 |
≥47 |
≥56 |
| Elongation at break (longitudinal and transverse),% |
≥560 |
| Right angle tear load (longitudinal and transverse),N |
≥27 |
≥45 |
≥63 |
≥90 |
≥108 |
≥135 |
≥180 |
≥225 |
≥270 |
| Puncture resistance,N |
≥52 |
≥84 |
≥135 |
≥175 |
≥220 |
≥260 |
≥350 |
≥435 |
≥525 |
| Carbon black content,% |
2.0-3.0 |
| Carbon black dispersibility |
No more than 1 level 3 of 10 data, and levels 4 and 5 are not allowed. |
| Oxidation induction time (OIT) min |
Atmospheric pressure oxidation induction time≥60 |
| Low temperature impact embrittlement performance |
Pass |
| Water vapor permeability coefficient,g·cm/(cm2·s·Pa) |
<=1.0×10-13 |
| Dimensional stability,% |
±2.0 |
| Note: The technical performance indicators for thickness specifications not listed in the table are required to be executed using interpolation method. |
Product Display:
Production equipment:
Packing&Shipping:
Application Scenario:
Certificate:
Company Profile:
Anhui Chuangwan New Materials Co., Ltd. is located in the industrial new town of Dashu town,
Quanjiao county, Chuzhou city, which is the Jianghuai watershed where mountains and rivers are
beautiful and humanities gather together in eastern Anhui,has been rising rapidly in the fierce market
competition since its establishment in 2017 through the unremitting efforts of all Chuangwan people.It is
a private science and technology enterprise specializing in the research, manufacturing and sales of
high-speed railway (highway) polymer materials.The company has passed ISO9001-2015 Quality
system certification, ISO14001-2015 Environmental management system certification, ISO45001-2018
Occupational Health and safety management system certification, China railway corporation railway
products - geosynthetic materials CRCC certification, now the product has diversified development.
The company is mainly engaged in ecological environmental materials manufacturing, metal materials
manufacturing, new membrane materials manufacturing, engineering plastics and synthetic resin
manufacturing, building waterproof coil products manufacturing, rubber products manufacturing,
industrial textile manufacturing, domestic sales and international trade and other businesses.
The company adopts first-class production equipment of international level, has perfect quality
management system and professional and technical personnel, and has more than 60 employees. The
company acquired land of about 33, 350.00 square meters in Dashu town, Quanjiao county, with a total
new construction area of 21, 556.00 square meters, including 18, 376.00 square meters of workshop,
3, 080.00 square meters of comprehensive building, 600.00 square meters of storage and other storage.
Auxiliary projects include roads, parking lots, greening, water supply and drainage, electrical, fire and
other systems. The company has purchased advanced production lines and testing equipment with a total
investment of 220 million yuan, which has been completed and put into operation. The annual sales
revenue has reached more than 100 million yuan (excluding international trade). The product quality fully
meets the requirements of the national standard(GB/T) and China railway corporation iron standard (Q/CR).
The product has obtained the CRCC certification issued by China railway certification body, and has reached
the domestic advanced level among similar products.
Chuangwan company adhering to the "quality as the fundamental, service to pursue benefits" of the
enterprise purpose, innovation, forge ahead, strive for quality projects. We sincerely look forward to
cooperating with you, and make unremitting efforts to jointly commit to national economic construction
and social development!
We warmly welcome new and old users to visit, sincerely look forward to working with you!
Company News:
Machinery&equipment:
Professional testing equipme:
We promise:
1. Safety production
2. Ensure the quality of goods
3. Timely supply
4. Accept customization of any size specification
FAQ
Q1. Can you do OEM?
A1. Yes.of course.We can produce the products as per your request. If you can offer samples to us,
it will be more convenient.
Q2. If I want to order a small quantity goods,can you do it?
A2. If the product you need we have stock available,that would be great,you can choose the instock
goods. but if not, don't worry, we can take your order with our other clients' order to be produced
together.But it needs to wait some time .
Q3. Can I get a sample from your company?Should I pay for the express fee?
A3. If you can accept our available sample,we can offer free sample to you. If you want a customized
sample,we can renegotiate the cost. About the express fee,please offer a freight collected account
and pay for the express fee by your side. After confirming your order, the sample's freight cost will be
deducted from your order's total cost.
Q4. How will you follow my order?
A4. When the goods are started to produce,we will take photos for the goods and send it to you.
If you find any production deficiencies,please contact us to correct it. We will keep in touch with you
in the whole production by e-mail or instant messaging, like Skype/Viber/WhatsApp, you can get the
latest news about your order. After the goods are finish,we will take photos for the goods and packing
to you before shipping.
Q5. What is your exporting countries?
A5. We have good sales performance and win good international reputation in more than 15 Countries
and regions,such as Japan, America, Australia,Russia, Canada,Middle East and so on.
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