1.Translucency
The light transmittance of the FRP lighting board is above 80%. Because a certain proportion of glass fiber is added to the polyester, the light will diffusely scatter when it passes through, and it will not leave light bands on the ground or produce glare. It can provide great work environment.
The PC board is made of pure resin, with a photopic rate of 0-88%. When the light passes through it, it will not produce diffuse scattering, but will produce refraction, and the light will leave obvious light bands on the ground. When people look up, they will feel very dazzling and dazzling, and they will feel uncomfortable when working.
2. Thermal expansion
The thermal expansion coefficient of FRP lighting panels is 2.6x10 - 5cm/cm/°C, which is similar to that of color steel plates. The relative displacement caused by the change of cold and heat is small, and it is not easy to leak due to deformation.
The thermal expansion coefficient of the PC solar panel is 6.75x10 - 5cm/cm/°C, which is about 5 times that of the color steel plate. The temperature difference on the roof of the color steel plate changes greatly, and the relative displacement of the PC plate due to thermal expansion and cold contraction is too large Leading to loosening of joints or tearing and deformation of the periphery of screw holes and water leakage.
(The thermal expansion coefficient of color steel plate is 1.25*10 -5cm/cm/℃)
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