strength refers to the maximum stress value in the object when the FRP daylighting board is damaged by force, including tensile strength, bending strength, impact strength, shear strength, etc. That is, whether it is firm or not

rigidity refers to the resistance of FRP daylighting board to deformation. Therefore, when FRP daylighting board is formed, the rigidity can be improved by making stiffeners at some parts or sub fibers on the surface

tested by Shanghai FRP Research Institute, the curing degree of FRP daylighting board produced by Hangzhou Annai building materials Co., Ltd. ≥ 85%. Therefore, the daylighting board produced by Hangzhou Annai has both rigidity and toughness, and is not brittle, which is convenient for construction and installation



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combustion is oxidation. Generally, the oxygen index of FRP daylighting panels produced by anair company is ≤ 21% is flammable. It will burn actively in case of open fire. The higher the temperature, the easier it will burn. Therefore, in case of fire, the daylighting board can burn quickly and become a smoke exhaust belt. According to the insoluble and fusible properties, the FRP daylighting board produced by Annai company is a thermosetting product, and there will be no melt drop during combustion (the quality test report issued by the national fire equipment quality supervision and Inspection Center), and the oxygen index ≥ At 28%, it is a flame-retardant daylighting board, that is, it can self extinguish without fire, not non combustion, but passive combustion. When it comes into contact with the flame, there are phenomena such as temperature rise, thermal decomposition, ignition, continuous combustion and so on



effect of temperature on the strength of FRP daylighting board

like many materials, the strength of FRP daylighting board decreases with the increase of temperature. When the temperature rises to a certain value, the strength decreases sharply. In addition, unlike other materials that become brittle at low temperature, FRP daylighting board has good low temperature performance at - 70 ℃; The strike strength increases with the decrease of temperature. Therefore, FRP daylighting panels will not age, turn yellow, crack or soften at - 40 ℃ - 95 ℃. FRP daylighting board has strong light transmittance, which enters in a diffuse way, eliminates the focus and shadow, and the light is soft and uniform. The light transmitted by PC and glass is direct, which makes the indoor light uneven, resulting in the decline of work efficiency