Preparation method for LED acrylic luminous character
A technology of LED light source and luminous characters, which is applied in the direction of household components, household appliances, and other household appliances, etc., can solve the problems of leftover materials, light leakage, edge display, serious problems, etc., and achieve material saving, less equipment investment, and feasible engineering applications Effect
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[0019] The preparation method of the LED acrylic luminous characters of the present invention comprises the following steps:
[0020] 1) Font shell mold preparation: Use a special font bending machine to make the font shell integratedly, and weld strip-shaped reinforcing ribs on the inner side. After cleaning the font shell, place it horizontally on the tempered glass, and cover it on the top of the font shell to reserve Toughened glass for PMMA slurry pouring port, tighten the fixture.
[0021] 2) PMMA slurry preparation:
[0022] 2a) Dissolve 0.05-0.2 parts of dibenzoyl peroxide and 10-30 parts of polymethyl methacrylate molding powder with 100 parts of methyl methacrylate to obtain a PMMA solution, and add 5-10 parts of British LR to it Color paste, stir evenly to prepare slurry A;
[0023] 2b) Dissolving 0.5-1 part of organic tertiary amine with 100 parts of unsaturated polyester to prepare solution B;
[0024] Wherein, the unsaturated polyester is under nitrogen protec...
Embodiment 1
[0033] 1) Character shell mold preparation: use the above method to make the character shell, clean it, place it horizontally on the tempered glass, cover the tempered glass with the PMMA slurry pouring port reserved on the top of the character shell, and tighten the fixture;
[0034] 2) PMMA slurry preparation:
[0035] 2a) Dissolve 0.05 parts of dibenzoyl peroxide and 20 parts of polymethyl methacrylate molding powder with 100 parts of methyl methacrylate to obtain PMMA solution, and add 5 parts of British LR color paste to it, and stir evenly to prepare Obtain slurry A;
[0036] 2b) Dissolving 0.5 part of N,N-dimethylaniline with 100 parts of unsaturated polyester to prepare solution B;
[0037] 2c) Mixing and degassing: mix the slurry A prepared in step 2a) with the solution B prepared in step 2b) according to a ratio of 10:1, and vacuum degassing after filtration to obtain grouting PMMA slurry C;
[0038] 3) Character shell casting polymerization: pour the PMMA slurry C...
Embodiment 2
[0042] 1) Character shell mold preparation: use the above method to make the character shell, clean it, place it horizontally on the tempered glass, cover the tempered glass with the PMMA slurry pouring port reserved on the top of the character shell, and tighten the fixture;
[0043] 2) PMMA slurry preparation:
[0044] 2a) Dissolve 0.1 part of dibenzoyl peroxide and 10 parts of polymethyl methacrylate molding powder with 100 parts of methyl methacrylate to obtain PMMA solution, and add 10 parts of British LR color paste to it, and stir evenly to prepare Obtain slurry A;
[0045] 2b) Dissolving 1 part of N,N-dihydroxyethyl-p-toluidine with 100 parts of unsaturated polyester to prepare solution B;
[0046] 2c) Mixing and degassing: mix the slurry A prepared in step 2a) with the solution B prepared in step 2b) according to the ratio of 10: 2, and vacuum degassing after filtration to obtain grouting PMMA slurry C;
[0047] 3) Character shell casting polymerization: pour the PM...
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