Polypropylene base mat Manufacturers

The simple way is to observe the appearance of the membrane without penetration.

The raw materials used for composite geomembrane should not only take into account the physical and chemical performance indicators specified in the use environment, but also pay special attention to the production cost. In terms of performance indicators, the following aspects are mainly considered:

The purpose of geomembrane is to use its anti-permeability effect. Geomembrane should be impermeable to the molecular structure and manufacturing process. However, due to the unevenness and defects in manufacturing, the commonly used geomembrane must not leak. It's just that it is relatively difficult to permeate and what is more important is whether the geomembrane can maintain its anti-seepage performance under the action of long-term water head when it contacts the actual soil (or other materials). Due to the uneven contact surface, rough soil particles, large local deformation of the soil, etc., the geomembrane may be broken or torn under the action of high water head, and its anti-seepage performance will be lost or weakened. Therefore, corresponding anti-seepage tests are also required.

The composite geomembrane is formed by heating one side or both sides of the film in the far-infrared drying box, and pressing the geotextile and the geomembrane together by means of guide rollers.

After the dam body is filled and the reservoir bottom is compacted to meet the design requirements, and the composite geomembrane impermeable body protective layer is prepared according to the design requirements, the construction technology of the composite geomembrane impermeable body is: the composite geomembrane is in place and the paving is straight → Butt joint, bottom fiber butt joint (stitching) → membrane material butt joint, hot melt pressure welding → inflation pressure (or negative pressure method) → surface fiber butt joint (sewing) → reserved capacity.

Leebo 1.5mm hdpe geomembrane sheet is widely used in various anti-seepage systems. It has three basic characteristics required in various environmental protection fields: