High-strength polyurethane foamed sheet and method for manufacturing the same
By constructing a composite structural system of elastic buffer layer-reinforcing skeleton-rigid foam matrix, and combining the synergistic reinforcement of reinforcing mesh and reinforcing strips, the cost and environmental protection issues of polyurethane foam boards in increasing strength and stability are solved, achieving efficient structural reinforcement and stability improvement.
Patent Information
- Application Number
- CN202610736159.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, polyurethane foam boards, while increasing structural strength and stability, suffer from significant cost increases or environmental impacts. Furthermore, the weak inter-fiber bonding due to the dispersed state of the glass fibers makes them prone to breakage and decreased stability.
A composite structural system is adopted, including an elastic buffer layer, a reinforcing skeleton, and a rigid foam matrix. Through the synergistic reinforcement of reinforcing mesh and reinforcing strips, a skeleton with surface and line reinforcement is formed. Combined with the limiting structure of the mold core, the preparation process of polyurethane foam board is optimized.
It significantly improves the bending resistance, impact resistance, and interlaminar shear resistance of the sheet material, reduces the risk of warping and interface delamination, enhances structural stability and ease of installation, simplifies production processes, and improves production efficiency.
Smart Images
Figure CN122401728A_ABST