The five-layer co-extrusion technology of geomembrane is briefly described L

geomembrane five-layer co-extrusion technology

The following is a detailed explanation of the five-layer co-extrusion technique:

know-why

Multi-layer co-extrusion: use five or more screw extruder to heat and pressurize five different functions.

Composite die: five kinds of materials converge through a multi-channel composite die to form a composite film with multilayer structure.

Crgent roller forming: the composite film is quickly cooled and formed to maintain its multi-layer structure and performance.

Material layer composition

It usually includes the protective layer, the upper cushion layer, the geomembrane main layer (which may be composed of multiple layers), the lower cushion layer, and possibly other functional layers.

Each layer of material is selected according to its functions, such as seepage prevention, enhancement, isolation, etc.

technological superiority

High performance: combined with the excellent characteristics of various materials, such as high strength, high seepage performance.

High precision: especially in the processing of semi-crystalline thermoplastics, such as PET, can give full play to the material properties and maintain the best size accuracy.

versatility: meet different engineering needs, such as water conservancy, civil engineering and environmental protection engineering.

 Production steps

1. Raw material preparation: Prepare corresponding raw materials and formula according to product requirements.

2. Equipment preheating: five screw extruder and nose respectively preheat to the appropriate temperature.

3. Raw material addition: according to the processing needs, the corresponding ratio of ingredients to the raw material.

4. Heating and melting plasticizing: by heating and pressurization, the raw materials reach a molten state and are evenly mixed.

5. Circular die extrusion: the molten material is squeezed into a multilayer structure through the annular die extrusion.

6. Blowing and cooling setting: the composite film is quickly cooled and formed by blowing and rapid cooling roll.

7. Traction and online thickness measurement: to ensure that the uniformity and thickness of the film meet the requirements.

8. Open and spread the film: cut open and flatten the formed composite film.

9. Secondary traction and roll: secondary traction and roll to form geomeme roll.

10. Inspection, packaging and warehousing: quality inspection of finished products, after qualified packaging and warehousing.

The advantages of five layers of coextrusion of the geomembrane

As an advanced geosynthetic material, the five-layer coextrusion geomembrane has many significant advantages, which make it widely used in various civil engineering and environmental protection engineering. Here are the main advantages of the five-story coextrusion geomembrane:

Excellent anti-seepage performance: the five-layer co-extruded geomembrane adopts multi-layer structure design, and the middle layer usually uses high-density polyethylene (HDPE) and other materials with excellent anti-seepage performance, which can effectively prevent liquid penetration and ensure the stability and safety of the engineering structure.

High strength and durability: The outer layer of the five layers of coextruded geomembrane is usually made of wear-resistant and corrosion-resistant materials to resist chemical corrosion and physical wear in the soil and maintain long-term stability and durability. At the same time, the multilayer structure also enhances the tensile strength and tear resistance of the geomembrane.

Good adaptability and deformation ability: the five-layer coextruded geomembrane has good flexibility and malleability, can adapt to the irregular changes of the terrain and the settlement deformation of the foundation, to ensure the stability and safety of the engineering structure.

Environmental protection and energy saving: five layers of geomembrane made of environmental protection materials, no pollution, non-toxic, meet the environmental protection requirements. At the same time, its excellent seepage prevention performance can also effectively reduce the waste and pollution of water resources, to achieve the purpose of energy saving and emission reduction.

Convenient construction: five layers of co-extrusion geomembrane light weight, easy to carry and lay, can greatly shorten the construction period. At the same time, its multi-layer structure also makes the connection between the geomembrane is closer, reduce the number of joints in the construction, and improve the quality of the project.

Cost-effective: Although the initial investment in the five-story co-extrusion geomembrane may be slightly higher, the maintenance and replacement costs can be greatly reduced due to the excellent performance and long-term stability, thus improving the economic benefits of the overall project.

Multifunctionality: The five-layer coextruded geomembrane can be customized according to different engineering needs, such as adding antibacterial, antistatic and other functional layers, to meet the needs of special engineering.

To sum up, the five-layer co-extrusion geomembrane plays an important role in civil engineering and environmental protection engineering with its excellent anti-seepage performance, high strength and durability, good adaptability and deformation ability, environmental protection and energy saving, convenient construction and high cost benefit.

 Why choose haoyang brand geomembrane?

●  Haoyang Company strictly controls the ratio and extrusion temperature of each layer of materials to ensure that the material properties are given full play.

●  Haoyang Company fully considers the actual needs of the project, and selects the appropriate geomembrane materials and structures.

●  Haoyang company geomembrane five-layer co-extrusion technology plays an important position in the field of geomembrane production with its high performance, high precision and versatility, and provides high-quality anti-seepage and protection solutions for various projects.