A metal-faced polyurethane sandwich panel for construction

CN224335246UActive Publication Date: 2026-06-09JIANGSU JINGXUE INSULATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JINGXUE INSULATION TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing rock wool sandwich panels are prone to moisture absorption and have poor thermal insulation performance. Polyurethane sandwich panels made with physical foaming agents have the risk of peeling. All-water foamed polyurethane foam has a high thermal conductivity and is brittle, making it difficult to meet the thermal insulation requirements of buildings.

Method used

The polyurethane core material is prepared using a full water foaming process, with carbon dioxide generated from the reaction of water and isocyanate as the foaming agent. The design incorporates grooves, fixing blocks, and vertically penetrating connecting rods on the metal surface to enhance compressive strength and overall stability.

Benefits of technology

It significantly improves thermal insulation performance, ensures the structural stability of sandwich panels under building loads and extreme temperature environments, meets green building standards, and avoids the problem of the face material delaminating from the core material.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a metal -faced polyurethane sandwich panel for building, it is designed to solve the current traditional rock wool sandwich panel hygroscopic, physical foaming agent hulling and high thermal conductivity of full water foaming polyurethane technical problem, including upper and lower two metal surface layers and the polyurethane core material of middle, upper and lower the metal surface layer and polyurethane core material are pasted and contact, polyurethane core material is made through full water foaming process and foaming agent is the carbon dioxide of water and isocyanate reaction generation, the utility model discloses full water foaming technology replaces physical foaming agent, through optimizing combination polyol formula and production process, the heat preservation performance is significantly improved, and the structure stability of sandwich panel under the building load -bearing and extreme temperature environment is guaranteed simultaneously.
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