一种可遇水膨胀型防水卷材

By designing a water-swellable waterproof membrane, and using water-swellable adhesive to fill gaps and punctures, the problems of water seepage and damage during construction and use of the waterproof membrane are solved, achieving self-sealing and self-repair effects, and enhancing waterproof performance and connection strength.

CN224510621UActive Publication Date: 2026-07-17PEPLAN (JINAN) NEW MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PEPLAN (JINAN) NEW MATERIALS CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing waterproof membranes are prone to problems such as loose joints, punctures, and damage during construction and use, leading to potential water leakage, and they also lack self-repair capabilities.

Method used

A water-swellable waterproof membrane was designed, comprising a protective layer, a waterproof layer, and a water-swellable layer. The water-swellable adhesive expands and fills gaps after contact with water. The adhesive is confined to a fixed area by the first and second water-soluble isolation layers and the arched portion to prevent leakage.

Benefits of technology

It achieves self-sealing overlap, no side leakage, and instant self-repair, improving the waterproof effect, enhancing the bond between the membrane and concrete, and preventing water seepage and puncture damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请提供一种可遇水膨胀型防水卷材,包括防护层、位于防护层下方的防水层以及位于防护层和防水层之间的遇水膨胀层;遇水膨胀层包括第一水溶性隔离层和第二水溶性隔离层;第一水溶性隔离层连接在防护层下侧;第二水溶性隔离层连接在防水层上侧,且设有多个向上凸伸的拱起部,拱起部水平延伸,并在水平方向上围出多个封闭的区域,拱起部为空腔状;第一水溶性隔离层与拱起部的顶部连接,第一水溶性隔离层和第二水溶性隔离层之间以及拱起部的空腔内填充有遇水膨胀胶;防护层能够向下渗水。此防水卷材利用遇水膨胀胶遇水膨胀,体积增大,挤压搭接或对接位置和被穿刺位置,修补缝隙,杜绝发生渗水,提高防水效果。
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