FRP Pu Sandwich Composite Panel
In today rapidly evolving construction and industrial sectors, there is a great demand for efficient, durable and versatile materials. One of the most innovative solutions is FRP (fiberglass) PU (polyurethane) sandwich panels.
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Product Introduction
Product Description
The FRP refrigerated compartment panel adopts a "sandwich" composite structure, consisting of an outer gel coat protective layer (0.5-0.8mm), an intermediate glass fiber reinforcement layer (2-3mm) and a polyurethane foam core layer (50-100mm). This structure achieves multiple thermal insulation through the synergistic effect of materials: the gel coat layer acts as a dense barrier with a water absorption rate of less than 0.3%, which can block 98% of water vapor penetration and prevent moisture from invading the foam layer and causing the thermal conductivity to increase; the glass fiber layer forms a heat conduction maze path through disordered fiber bundles, reducing the radial heat conduction efficiency by 40%; the polyurethane core layer has a closed-cell rate of more than 95%, a density of 40-60kg/m³, and its internal honeycomb structure controls air convection heat loss to less than 5%. Experimental data show that the thermal resistance of the composite structure reaches 3.2-4.5 (m²·K)/W, which is 80 times that of a single-layer aluminum alloy panel.
One of the main advantages of FRP PU sandwich board is its excellent thermal insulation properties. PU foam core helps regulate indoor temperature and reduce energy consumption. It is also suitable for areas requiring constant temperature storage such as cold storage trucks.
FRP PU sandwich panels are highly customizable, allowing for flexible design and construction. They can be easily cut and molded to suit specific requirements. Whether used for exterior walls, roofs, floors or partitions, FRP PU sandwich panels offer versatility and performance.
Through material innovation and structural optimization, FRP PU composite panels have surpassed traditional metal materials in terms of insulation, strength, cost and other dimensions, and have become the preferred solution for high-end refrigerated trucks. As cold chain logistics develops towards refinement and intelligence, the penetration rate of this material in the fields of medicine, fresh food, cross-border cold chain, etc. will continue to increase, and the market share is expected to exceed 45% in 2025.
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