A kind of reflective film based on thermosetting coating and its preparation method
A reflective film and thermosetting technology, applied in optics, optical components, instruments, etc., can solve the problems of easy aging of reflective film, complex process, unstable control of metal reflective coating process, etc., and achieve simple multi-layer transfer lamination process and easy preparation Simple and easy to control, the effect of simple and easy to control the preparation method
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Embodiment 1
[0028] (1) Under argon protection, metal aluminum powder and glass powder are compounded in mass than 100: 20, heated to 950 ° C, aluminum powder, and glass powder completely melt uniformly mixed; cooling under continuous argon protection, in the ball mill Argon protection, ball abrasion, simultaneous addition of a glass-aluminum composite mass of 1% dispersion polyethylene glycol, refined to D90 particle diameter at 1-5 μm, to obtain glass-aluminum composite fine powder;
[0029](2) Getting Step (1) to obtain a glass-aluminum composite fine powder and the silicone fluorine epoxy powder coating with a mass ratio 3: 1, and the polytetrafluoroethylene resistance high temperature base film is used as a reflective substrate film. The metal coating was sprayed to a high temperature-resistant base film surface under a pressure of 0.8 MPa, and then cured at 120 ° C for 5 min; and the softening process in which the thermoset powder coating is present, further particle diameter of 0.04-0.0...
Embodiment 2
[0032] (1) Under argon protection, metal aluminum powder and glass powder are compounded in mass than 100: 30, heated to 900 ° C, aluminum powder, and glass powder completely melt uniformly mix; cooling under continuous argon, in the ball mill Argon gas protection, ball abrasion, simultaneous addition of 2% of the glass-aluminum composite mass of 2%, refined to D90 particle diameter at 1-5 μm, to obtain glass-aluminum composite fine powder;
[0033] (2) Getting Step (1) to obtain a glass-aluminum composite fine powder and the silicone fluorine epoxy powder coating with a mass ratio 3: 1, and the polytetrafluoroethylene resistance high temperature base film is used as a reflective substrate film. The metal coating was sprayed to a high temperature-resistant base film surface under a pressure of 1.2 MPa, and then cured at 130 ° C for 5 min; and the softening process of thermosetting powder coatings further pulverized glass of 0.04-0.08 mm. The beads were sprayed into the surface of ...
Embodiment 3
[0036] (1) Under argon protection, metal aluminum powder and glass powder are compounded from 100: 25, heated to 850 ° C, aluminum powder, and glass powder completely melt uniformly mix; cooling under continuous argon, in the ball mill Argon protection, ball abrasion, simultaneous addition of a glass-aluminum composite mass of 1% dispersion polyethylene glycol, refined to D90 particle diameter at 1-5 μm, to obtain glass-aluminum composite fine powder;
[0037] (2) Getting Step (1) to obtain a glass-aluminum composite fine powder and the silicone fluorine epoxy powder coating with a mass ratio 3: 1, and the polytetrafluoroethylene resistance high temperature base film is used as a reflective substrate film. The metal coating was sprayed to a high temperature resistant base film surface under a pressure of 1.0 MPa, and then cured at 130 ° C for 8 min; and the softening process in which the thermoset powder coating is present, further particle diameter of 0.04-0.08 mm glass micro The...
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