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UNQ

PC honeycomb plate sun light transmittance and insulation

by:UNQ     2020-10-07
1063 PC cellular sunshine board sound insulation effect is obvious, the same thickness and the strength of glass plate have better sound insulation, the thickness under the same conditions, the PC polycarbonate sheet sound insulation quantity is 5 - greater than that of the glass 9 db。 In the world is of highway noise barrier material. PC cellular sunshine board have certain energy-saving sex, to a certain extent, its Xia Tianbao cool, heat preservation in winter, PC sun plate more than common glass and other plastic thermal conductivity ( K value) , 7% higher than the same glass - insulation effect 25%, P C sunshine board insulation is higher to 49%. So that the heat loss is greatly reduced, used to have a warm equipment construction, environmental protection material. PC honeycomb plate in - sunshine At 40 ℃ cold short, does not occur at 125 ℃ not soften, its mechanics in the harsh environment, mechanical properties, etc. No obvious change. P C sunshine board can be - 40 ℃ to 120 ℃ scope to keep the stability of the physical indicators. Artificial climate ageing test 4000 hours, yellowing degree is 2, light transmittance lower value only 0. 6%. Prevent dewing: outdoor temperature 0 ℃, indoor temperature is 23 ℃, the indoor relative humidity under 80% when, the inner surface of the material not condensation. PC board must be taken into consideration the size of the screw holes summer night heat bilges cold shrink and book. In general, the screw holes should be larger than the screw diameter at least 2 ~ 4 mm, to reserve expansion space. The location of the screw holes from the edge of the PC sheets is too close, very easy to cause broken board, in general, the position of the screw holes from the PC board edge for the screw hole diameter of 2. More than 5 times. For example, the diameter of 4 mm screw, the screw holes position at least to have more than 1 cm away from the PC board edge. Do not lock the screw is too tight, otherwise produce deformation, and stress. Lock the screw on the PC analysis don't choose self tapping screw, otherwise produce stress, and stress at the plate thickness increases. To reduce the pressure of screw with material directly, can use gaskets pad during filling, but PVC washer and some rubber ring will destroy the PC board, do not use. Recommend the use of the gasket material for epdm like rubber, silicone rubber and neoprene.
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