Super-hydrophobic self-luminous sound insulation screen and construction method
A sound insulation screen and self-illumination technology, applied in the field of sound insulation materials, to achieve the effects of reducing noise pollution, obvious visual effects, and reducing lighting
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Embodiment 1
[0031] Preparation method of luminescent powder:
[0032] 1. Standard solution preparation
[0033] Potassium permanganate (KMnO4) with a purity of 99.5%; potassium fluoride (KF,) with a purity of 99%; hydrofluoric acid (HF) with a concentration of 40%, and hydrogen peroxide solution (H2O2) with a concentration of 30%. 99% silicon dioxide (SiO2); 99% purity methanol (CH3OH), 99.7% purity ethanol (CH3CH2OH), 99% purity nitric acid (HNO3), 99% purity ammonia (NH4OH), orthosilicon Acetate ethyl ester (C8H20O4Si), laboratory water is self-made deionized water.
[0034] 2. Preparation steps
[0035] 1) Prepare hydrofluoric acid solution: weigh 10 g of hydrofluoric acid with a balance, put it in a 100ml beaker, then measure 40ml of deionized water, and prepare a hydrofluoric acid solution at normal temperature;
[0036] 2) Add 30ml of hydrofluoric acid solution to the beaker, then add SiO 2 powder, react to generate silicofluoric acid solution;
[0037] 3) Add 3ml of fluorosilici...
Embodiment 2
[0062] The difference from Example 1 is that the particle size of the luminescent powder is 580 mesh.
[0063] Preparation of self-luminous sound insulation screen:
[0064] 1) Special PC board for sound barrier: polycarbonate resin is used as the main component, and drying treatment is carried out before processing. The specific drying temperature is controlled at 115 ° C, and the drying time is 8 hours to reduce the moisture content to below 0.02%. Add 900 parts of polycarbonate resin , 80 parts of luminescent powder, 40 parts of reflective powder, and 20 parts of kaolin were dry mixed for 40 seconds, poured into tap water mixed with 6 parts of naphthalene-based superplasticizer and stirred for 130 seconds, and the obtained mixture was formed into a transparent part by injection molding;
[0065] 2) Super-hydrophobic layer: Dip-coat a layer of super-hydrophobic coating on the PC board of the sound insulation screen formed in step 1).
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