Method for preparing light-reflecting and heat-insulating film for vehicle roof
A heat-insulating film and reflective technology, which is applied in the direction of optics, optical components, and illuminated marks, can solve the problems of inconvenient cleaning of cars, easy to cause traffic accidents, and insufficient lighting, achieving excellent reflective effects and easy to paste With the effect of detachment, the coefficient of retroreflection improvement
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[0019] A method for preparing a reflective and heat-insulating film for a vehicle roof, comprising the following specific steps:
[0020] (1) Bead planting:
[0021] Coat the acrylic resin adhesive on the PET film, and after drying in an oven at 115°C, adhere the magnetic glass beads to the surface of the adhesive layer, and the depth of the glass beads into the adhesive layer is 1 / 2 of the diameter of the glass beads;
[0022] (2) Preparation of titanium dioxide sol:
[0023] Slowly add 2 parts of deionized water dropwise to 38 parts of absolute ethanol while stirring, and then slowly add 6 parts of diethanolamine dropwise while ultrasonicating, and then slowly add 15 parts of titanic acid dropwise Tetrabutyl ester, after adding dropwise, ultrasonically oscillate for 1 hour, and let it stand for 24 hours to obtain a titanium dioxide sol;
[0024] (3) Coating:
[0025] Use an electrostatic spray device for titanium dioxide coating, place the resin substrate after bead plant...
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