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Geomembrane production process

RELEASE TIME :

2021-12-22 13:20

The production and application of geomembrane is an important category and effective way to promote green and low-carbon development. Most of the anti-insect projects in China use geomembrane, and use scale to carry out anti-seepage projects such as waste treatment plants, sewage treatment sites, roads, railways, tunnels, airports, ports, waterways, reservoirs, dams, sports fields, drift ice fields, and military. In the implementation of the western development campaign, geomembrane has shown more functions in flood control and rescue, water catchment irrigation, ecological environment maintenance and other aspects, so let's learn about the production process of geomembrane together!

土工膜的生产工艺

　

1. Geomembrane is a flexible waterproof material with high impermeability coefficient (110-17 cm/s).

2. The geomembrane has good heat resistance and cold resistance, and the operating environment temperature is 110 at high temperature and -70 at low temperature.

3. Geomembrane has excellent chemical stability function, and it is a good anti-corrosion material to resist the corrosion of strong acid, alkali and oil.

4. The geomembrane has high tensile strength and high tensile strength, which can meet the needs of high-standard engineering projects.

5. The geomembrane has strong weather resistance and strong anti-aging function. It can be exposed for a long time and maintain the original function.

6. The overall function of the geomembrane, the geomembrane has a strong tensile strength and elongation at break, and the geomembrane can be used in a variety of adverse geological and climatic conditions. It is accustomed to uneven geological settlement and has strong deformation force.

7. The geomembrane is made of raw plastic and carbon black particles, completely free of preservatives. In China, PVC is replaced by food packaging bags and fresh-keeping film raw materials.

Geomembrane In various major projects, geomembrane is used as a kind of geotechnical anti-seepage material, but the high-quality geomembrane can not only resist various messy stresses, but also use it for a long time under various natural factors, and its comprehensive performance will not change. So, how can the earthwork membrane avoid aging? It is firstly used in geomembrane channel anti-seepage engineering, which is an inherent characteristic of polymer products and cannot be completely removed, but a useful method to prolong the service life can be selected. On the one hand, it is added to the raw material particles of geomembrane Anti-aging agent can prevent the influence of external factors such as light, oxygen and heat on the product. If the anti-aging agent is not added,

Advantages of geomembrane: good anti-penetration function, and the earthwork membrane itself is impermeable. Its penetration is mainly due to the fact that the pinholes, micro-slits and permeability coefficients formed during the plate forming process are much lower than those of clay. During construction, as long as a 13 mm anti-seepage film is laid, the anti-seepage condition can be met, thereby saving landfill documents. The tensile function of the geomembrane is related to the matching impermeable material, but they are better than sticky wire. Defects of the earthwork membrane: easy to be stabbed by sharp stones, the polymer itself has aging problems, may be impacted by chemicals and microorganisms, the welding part is easy to show contact holes during construction, and the shearing function is reduced. Real-time films to single-layer rollovers can suffer from uneven damage.

According to the classification of production process, polyethylene geomembrane adopts blow molding method and flat pressing method. Blow molding method (tube film method) accounts for more than 70% of the total production, followed by flat pressing method. The PVC geomembrane is rolled and laminated.

The above is the production process of geomembrane. If you need to know more, please feel free to contact us!

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