Technical Requirements For Polyurethane Sandwich Panels

The technical requirements of polyurethane sandwich panels mainly include the following aspects:

Structural requirements: The polyurethane sandwich panel system consists of purlins, wall frames, polyurethane sandwich panels and accessories. The system design should include project overview, insulation technology quality objectives, plane design drawings, node construction details, main material plans, construction schedules, safe and civilized construction measures, etc.

Material requirements: The bonding strength of the polyurethane sandwich panel should be no less than 0.09MPa, the combustion performance should reach B1 level, and the bending bearing capacity should be no less than 0.5Kn/m2 when the deflection of the sandwich panel is Lo/200. The effective width of the board is usually 1000mm, and the length can be customized according to needs. The core material is made of hard polyurethane foam plastic, which has excellent heat resistance and low thermal conductivity, and excellent thermal insulation performance.

Construction requirements: Before construction, a special construction organization design plan should be prepared, and technical disclosure and pre-job assessment should be carried out. After the raw materials enter the construction site, they need to be inspected and re-inspected. All kinds of materials should be stored in categories to prevent rain, sun exposure and fire. During the construction process, attention should be paid to the protection of finished products to avoid construction in bad weather. During installation, special hoists should be used for vertical transportation. When fixing, pay attention to the nailing force to prevent the board from deforming.

‌Performance characteristics‌: Polyurethane sandwich panels have excellent thermal insulation performance, anti-leakage performance, high strength and durability. Its installation process is simple and fast, the construction period is short, and it is non-toxic and odorless, environmentally friendly and safe. It is suitable for various construction projects, including wall and roof enclosure systems of industrial plants, logistics warehousing and integrated houses.