HDPE Point Geomembrane
1、Functional characteristics: column point appearance, uniform distribution of two high coefficient of friction seepage control, anti-fouling, anti-skid role of excellent ease of construction.
2, typical application: in the project laying, in addition to seepage control, anti-fouling, function, but also has the role of anti-skid, characterized by the application of engineering slopes, to facilitate the geotextile fabrics in the second laying of the adhesion strength to strengthen the construction of convenient, efficient application of the advantages of high. It is an ideal landfill seepage control, anti-pollution project special materials.
Product description
HDPE Point Geomembrane, membrane surface column point by the special model roller calendering, column point distribution is uniform, beautiful, improve the coefficient of friction, and the membrane surface front and back can be made of different materials, different colors of heat fusion into a single unit, in the engineering application can be based on the geological conditions, engineering requirements to set the front and back of the product. The production process of the products produced in the original resin itself to retain the excellent mechanical properties and good elongation and chemical properties on the basis of stability, through the addition of a certain percentage of functional additives by melting, extrusion, calendering, drafting and other processes, such as reasonable control of the process enhances the product tensile, abrasion and puncture resistance, functional additives to add a blend of ratios to make the product resistance to acid and alkali, microorganisms and chemical substances. The mechanical properties of the product are nearly 3 times higher than those of the brown anti-slip geomembrane produced by the same kind of ordinary process.
Product parameter
serial number | Indicato | Test Value | |||||||
0.75mm | 1.00mm | 1.25mm | 1.50mm | 2.00mm | 2.50mm | 3.00mm | |||
1 | Minimum density,g/cm3 | 0.939 | |||||||
2 | Tensile properties | ||||||||
Yield strength (stress),N/mm | 11 | 15 | 18 | 22 | 29 | 37 | 44 | ||
Rupture strength (stress),N/mm | 20 | 27 | 33 | 40 | 53 | 67 | 80 | ||
Yield elongation, % | 12 | ||||||||
Elongation at break, % | 700 | ||||||||
3 | Tear strength at right angles, N | 93 | 125 | 156 | 187 | 249 | 311 | 374 | |
4 | Puncture strength, N | 240 | 320 | 400 | 480 | 640 | 800 | 960 | |
5 | Resistance to environmental stress cracking (single point incision constant load tensile method), hr |
300 | |||||||
6 | Carbon black | ||||||||
Carbon black content (range),% | 2.0-3.0 | ||||||||
Carbon black dispersion | 9 out of 10 observations should be class 1 or class 2, and no more than 1 should be class 3. | ||||||||
7 | Oxidation Induction Time (OIT) | ||||||||
Standard OIT,min, | 100 | ||||||||
High pressure OIT,min | 400 | ||||||||
8 | 85. C oven aging (min average) | ||||||||
Retention % of standard OIT after 90 d of baking | 55 | ||||||||
Retention % of high pressure OIT after 90d of baking | 80 | ||||||||
9 | UV resistance | ||||||||
After UV irradiation 1600hr, standard; % retention of OIT; | 50 | ||||||||
Retention % of high pressure OIT after UV irradiation 1600hr; | 50 | ||||||||
10 | -70℃low-temperature impact embrittlement performance | Passing | |||||||
11 | Water vapor permeability parameter，g·cm（cm2· s ·Pa） | ≤1.0*10-13 | |||||||
12 | Dimensional stability % | ±2 | |||||||
