Advanced Production Process of HDPE Textured Geomembrane for Environmental Engineering

Brand Name:JianYi
Certification:ISO9001
Model Number:6m-8m Width and 50m-100m Roll Length
Minimum Order Quantity:330㎡
Delivery Time:7-15 days
Payment Terms:T/T, L/C
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Location: Changsha Ningxia China
Address: Chuangye Avenue,Ningxiang Economic Development Zone,Changsha City,Hunan Province,P.R.C.
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Advanced Production Process of HDPE Textured Geomembrane for Environmental Engineering


Definition and production process of roughened geomembrane


Roughened geomembrane is a product improved on the basis of the traditional production process of polyethylene anti-seepage membrane. Through specific production equipment and technology, the surface of the produced polyethylene anti-seepage membrane forms a granular rough surface. This rough surface is formed by letting the molten material flow out of the extrusion cavity, and then using the wind trough and hot air compression trough to introduce hot air into the wind cavity through the air inlet hole. The hot air is blown out through the hot air compression trough, blowing the material flowing out of the extrusion cavity into flocs, and finally these flocs fall on the surface of the geomembrane, thereby increasing the surface roughness and increasing the friction coefficient


Application scenarios of roughened geomembrane
Roughened geomembrane is widely used in many fields due to its unique surface roughness and excellent physical properties:

Environmental engineering
Landfill: used to prevent pollution of landfill leachate.
Tailings storage field: enhance the stability of tailings dams and prevent tailings loss.
Channel anti-seepage: effectively prevent water loss and soil erosion in agricultural irrigation and urban water supply systems.
Dam anti-seepage: Improve the safety of dams and prevent floods.
Subway projects: During subway construction, it is used to prevent groundwater infiltration and ensure construction safety


Construction projects
Highways, airports, and railways: Used for waterproof isolation of roads to increase road service life.
Tunnels: In subways, undersea tunnels and other projects, it prevents groundwater infiltration and ensures construction and operation safety

Performance characteristics of roughened geomembranes
Roughened geomembranes not only have all the advantages of ordinary geomembranes, but also have the following characteristics due to the increase in surface roughness:

Increase friction coefficient: Enhance adhesion with the base surface to prevent landslides.
Enhance tensile strength: Compared with smooth membranes, roughened membranes have stronger tensile strength.
Enhance resistance to load-bearing deformation: The rough particles on the surface of the rough membrane will form a small gap between the membrane and the base surface during laying, thereby enhancing the membrane's resistance to load-bearing deformation


Product Specification

* Thickness(mm): 0.30mm~3.00mm

* Width: 4m~8m

* Roll length: 50m~100m (customized request accept)

PS: Customized request accept for all above.


Geomembrane Series

Textured HDPE Geomembrane For Landfill (GB/T 17643-2011(GH-2T1,GH-2T2))

Serial NumberProjectIndex
Thickness(mm)0.751.001.251.502.002.503.00
1Density (g/c,≥)≥0.940
2Textured Highth (mm)≥0.25
3Yield Strength (N/mm,LD/TD)≥11≥15≥18≥22≥29≥37≥44
4Breaking Strength (N/mm,LD/TD)≥8≥10≥13≥16≥21≥26≥32
5Yeild Elongation Rate (%)≥12
6Breaking Elongation Rate (%)≥100
7Rectangular Tear Strength (N)≥93≥125≥160≥190≥250≥315≥375
8Puncture Strength (N)≥200≥270≥335≥400≥535≥670≥800
9Tensile Load Stress Cracking (Notch Constant Load Tensle Method) h≥300
10Carbon Black Content(Rang) (%)2.0~3.0
11Carbon Black DispersionThere is not more than one grade 3 in 10 data, and grade 4 and grade 5 are not allowed
12Oxidative Induction Time (OIT)Standard OIT (min)≥100
High Pressure OIT (min)≥400
1385 thermal aging (Atmospheric Pressure OIT Retention After 90 Day)≥55
14Ultraviolet Irradiation After 1600 Hours, The OIT Retention(%)≥50

(CJ-T234-2006)

Specification1.00mm1.25mm1.50mm2.00mm2.50mm3.00mmRemark
Item
Thickness (mm)1.00mm1.25mm1.50mm2.00mm2.50mm3.00mm
Textured Highth (mm)0.25
Density (g/c㎡,≥)0.94
Tensile Properties
Yield Strength (N/mm,LD/TD)151822293744
Breaking Strength (N/mm,LD/TD)101316212632
Yeild Elongation Rate (%)12
Breaking Elongation Rate (%)100
Rectangular Tear Strength (N)125156187249311374
Puncture Strength (N)267333400534667800
Environmental Stress Crack Resistance (h)
(A single point of incision constant tensile method)
300
Carbon Black
Carbon Black Content(Rang) (%)2.0~3.0
Carbon Black DispersionNine of 10 observation area should be grade 1 or grade 2, not more than 1 of grade3
Oxidative Induction Time (OIT)
Standard OIT (min)100
High Pressure OIT (min)400
85℃ Oven Ageing (Minimum Average)
90 days after baking, the standard OIT retention(%)55
90 days after baking, the hight pressure OIT retention(%)80
The Anti-UV Strength
Ultraviolet irradiation after 1600 hours, the standard OIT retention(%)50
Ultraviolet irradiation after 1600 hours, the high pressure OIT retention(%)50
-70℃ The Low Temperature Embrittlement Performance mpactPass
Water Vapor Penetration Coefficient g.cm (cm2.s.Pa)≤1.0X10-13
Dimensional Stability±2
China Advanced Production Process of HDPE Textured Geomembrane for Environmental Engineering supplier

Advanced Production Process of HDPE Textured Geomembrane for Environmental Engineering

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