Geomembrane with adhesive film and application thereof

By setting three layers of composite adhesive film in the geomembrane welding overlap area, the problems of positioning difficulties, interface debonding and welding failure during geomembrane welding are solved, achieving efficient and stable welding construction, which is suitable for environmental protection seepage prevention, water conservancy and hydropower and municipal engineering.

CN122402033APending Publication Date: 2026-07-17SHANDONG JIANTONG GEOSYNTHETICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG JIANTONG GEOSYNTHETICS CO LTD
Filing Date
2026-06-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing geomembrane welding methods suffer from problems such as difficulty in positioning, interface debonding, and welding failure, resulting in low construction efficiency and insufficient long-term stability.

Method used

Three layers of composite adhesive film are set in the welding overlap area, including an interface transition layer, a welding positioning layer, and a release protection layer. The interface transition layer strengthens the bond with the HDPE body, the welding positioning layer enables rapid positioning at room temperature and fusion at high temperature, and the release protection layer ensures storage and construction performance.

Benefits of technology

It achieves precise welding positioning, strengthens the bond between the geomembrane body and the adhesive membrane, improves seepage prevention performance, simplifies the construction process, increases construction efficiency, and ensures long-term stability. It is suitable for environmental protection seepage prevention, water conservancy and hydropower, and municipal engineering projects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses geomembrane with adhesive film and application thereof, and belongs to the technical field of geomembrane. The geomembrane with adhesive film comprises a geomembrane body and an adhesive film, and the adhesive film is arranged on the surface of a welding lap joint area of the geomembrane body. The adhesive film comprises an interface transition layer, a welding positioning layer and a release protective layer. The interface transition layer is combined with the surface of the welding lap joint area of the geomembrane body, the welding positioning layer is combined with one side of the interface transition layer away from the geomembrane body, and the release protective layer covers one side of the welding positioning layer away from the interface transition layer. The application sets three-layer composite adhesive film only in the welding lap joint area, strengthens the combination with the geomembrane body through the interface transition layer, realizes normal-temperature rapid positioning and high-temperature melting eutectic through the welding positioning layer, guarantees the storage construction performance through the release protective layer, and solves the problems of traditional geomembrane positioning difficulty, interface debonding and welding failure, and the like. The geomembrane is excellent in seepage prevention, weather resistance and shear resistance, is suitable for environmental protection seepage prevention, water conservancy and hydropower and municipal engineering, is efficient in construction, and is stable for a long time.
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