中文简体
русский
عربى
1. Overview of Composite geomembrane's production process
The production process of Composite geomembrane mainly includes the manufacture of anti-seepage membrane layer, the production of protective geotextile, and the bonding of the two. The anti-seepage membrane layer is usually made of high-density polyethylene (HDPE) or polyvinyl chloride (PVC) materials, with a thickness range of 0.2 mm to 0.8 mm, while the weight of the protective geotextile ranges from 100g/㎡ to 800g/㎡, both of which must meet national standards. High-quality bonding process is the key to ensure that the membrane layer and geotextile are firmly bonded and the performance is stable.
2. The importance of anti-seepage membrane manufacturing process
The anti-seepage membrane is the core part of Composite geomembrane, and its manufacturing process directly affects the anti-seepage performance and material life. During the production process, the raw materials need to be strictly screened to ensure that the membrane layer has chemical stability and mechanical strength. High-density polyethylene (HDPE) membranes are manufactured through an extrusion molding process, which requires the temperature, pressure and speed of the production line to remain stable to avoid problems such as uneven thickness or material defects. In addition, in order to improve the flexibility and durability of the membrane layer, antioxidants and UV stabilizers are added in some production processes to improve the anti-aging properties of the material.
3. Production and control of protective geotextiles
As an important component of composite geomembrane, the quality of protective geotextiles directly affects the protective effect of the membrane layer. Geotextiles are usually produced using needle-punched non-woven processes or spunbond processes, which can produce geotextiles with uniform fibers, high strength and puncture resistance. In actual production, manufacturers will choose geotextiles of different thicknesses and densities according to engineering requirements to adapt to different application scenarios.
4. The key role of bonding process
In the manufacture of composite geomembrane, the bonding process between the anti-seepage membrane layer and the protective geotextile is one of the core links that determine product quality. Common bonding methods currently used include hot pressing and adhesive sealing:
Hot pressing: The anti-seepage membrane layer is firmly bonded to the geotextile by high temperature and hot pressing. This method not only has high bonding strength, but also avoids the environmental pollution problems that may be caused by the use of chemical adhesives.
Adhesive sealing: A bonding process suitable for special scene requirements, which can achieve rapid prototyping at a lower temperature, but has high requirements for the environmental protection and bonding effect of the adhesive.
5. Intelligent and standardized production lines
The production of composite geomembrane requires high-precision equipment and strict process control. Modern production lines usually use intelligent management systems to monitor key parameters such as temperature, speed, thickness, etc. in real time to ensure that each batch of products meets technical standards. In addition, multiple quality tests should be carried out during the manufacturing process, such as thickness testing, tensile strength testing, and permeability testing, to ensure that the various performance of the product meets industry requirements.
6. The actual impact of process on performance
Scientific process manufacturing not only improves the anti-seepage performance of composite geomembrane, but also extends its service life. In practical applications, high-quality Composite geomembrane exhibits the following characteristics:
High-strength puncture resistance: The addition of protective geotextile greatly improves the ability of composite membrane to resist sharp substances, and is suitable for projects under complex geological conditions.
Long-term stable anti-seepage effect: The anti-seepage membrane produced through strict process control has high chemical stability and can maintain good anti-seepage performance in various chemical and physical environments.
Convenience of construction: The width of the composite membrane ranges from 4 meters to 6 meters, which reduces the number of joints in construction, reduces the risk of leakage, and improves engineering efficiency.
