A kind of preparation method of polyester light diffusing plate
A light diffusion plate and polyester technology, applied in the field of light diffusion materials, can solve the problems of insufficient hydrophobicity, loss of light transmittance, poor compatibility of the matrix, etc., to achieve reduced light transmittance loss, uniform distribution, and good sphericity Effect
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Embodiment 1
[0026] The preparation method of the polyester light diffusing plate in this embodiment includes the following steps:
[0027] (1) 5mL of γ-aminopropyltriethoxysilane and 15mL of methyl perfluorobutyrate were thoroughly mixed, and nitrogen was introduced, and the reaction was carried out under reflux at 65°C for 12h;
[0028] (2) adding 100mL absolute ethanol and 100mL perfluorohexane to separate liquids after the reaction finishes, taking out the lower layer liquid, and obtaining perfluorosilane through reduced pressure distillation;
[0029] (3) Mix 10 mL of perfluorosilane, 30 mL of methyltrimethoxysilane, 20 mL of ethanol and 160 mL of water evenly, then add tetramethylammonium hydroxide to adjust the pH to 8.5, and react at 50°C for 4 hours to obtain superhydrophobic fluorine-containing Silicone microspheres with a particle size of 2.9 μm, such as figure 1 It can be seen that the superhydrophobic fluorine-containing organosilicon microspheres prepared in this example hav...
Embodiment 2
[0032] The preparation method of the polyester light diffusing plate in this embodiment includes the following steps:
[0033] (1) 5mL of γ-aminopropyltriethoxysilane and 10mL of methyl perfluorobutyrate were thoroughly mixed, and nitrogen gas was introduced, and the reaction was refluxed at 65°C for 12h;
[0034] (2) adding 100mL absolute ethanol and 100mL perfluorohexane to separate liquids after the reaction finishes, taking out the lower layer liquid, and obtaining perfluorosilane through reduced pressure distillation;
[0035] (3) Mix 10 mL of perfluorosilane, 30 mL of methyltrimethoxysilane, 20 mL of ethanol and 160 mL of water evenly, then add tetramethylammonium hydroxide to adjust the pH to 8.5, and react at 50°C for 4 hours to obtain superhydrophobic fluorine-containing Silicone microspheres;
[0036] (4) Dry polycarbonate at 120°C for 12 hours, add 1wt% fluorine-containing organosilicon microspheres, mix well, and then extrude and inject to obtain a light diffusing...
Embodiment 3
[0038] The preparation method of the polyester light diffusing plate in this embodiment includes the following steps:
[0039] (1) 5mL of γ-aminopropyltriethoxysilane and 10mL of methyl perfluorobutyrate were thoroughly mixed, and nitrogen gas was introduced, and the reaction was refluxed at 65°C for 12h;
[0040] (2) adding 100mL absolute ethanol and 100mL perfluorohexane to separate liquids after the reaction finishes, taking out the lower layer liquid, and obtaining perfluorosilane through reduced pressure distillation;
[0041] (3) Mix 10 mL of perfluorosilane, 40 mL of phenyltrimethoxysilane, 30 mL of ethanol and 160 mL of water uniformly, then add tetramethylammonium hydroxide to adjust the pH to 8.5, and react at 50°C for 4 hours to obtain superhydrophobic fluorine-containing Silicone microspheres;
[0042] (4) Dry the polycarbonate at 120°C for 12 hours, add 0.1wt% fluorine-containing organosilicon microspheres, and after mixing evenly, obtain a light diffusing plate ...
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Abstract
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