Light diffusion material

[0034] Example 1

[0035] Polycarbonate resin (Taiwan Chi Mei 110U, melt index MFI 10g/10min) 100 parts, light diffusing agent (Japan Shin-Etsu KMP-590, Japan Nakabuchi MP-90 according to 3:1 compounding, particle size 0.2-10μm) 2 parts, light stabilizer (Cytec UV-5411) 1 part, composite antioxidant 2.1 parts (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, three [2.4-Di-tert-butylphenyl] phosphite, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate], 4,4 '-Thiobis(6-tert-butyl-3-methylphenol compounded according to 1.2:1:1:1:1), 5 parts of composite flame retardant (perfluorobutanesulfonic acid, potassium benzophenol sulfonate) 、P-biphenylene tetraphenyl bisphosphate is compounded at 3:1:1), 0.2 part of white oil, 0.1 part of fluorescent whitening agent, 0.2 part of toner, put into the high-speed mixing container, and the speed is high and low at room temperature. Mix for 3 to 5 minutes. After that, add the mixed materials into the hopper of the twin-screw extruder. The processing temperature of each zone of the screw is set as follows: the temperature of the first zone is 240~260℃, the temperature of the second zone is 260~270℃, and the temperature of the third zone 270~280℃, four zone temperature 270~280℃, five zone temperature 270~280℃, six zone temperature 270~280℃, seven zone temperature 270~280℃, eight zone temperature 270~280℃, nine zone temperature 270~280 ℃, the head temperature is 280-290℃, the screw speed is 300-600r/min, the light diffusion material involved in the present invention is obtained through melt blending, extrusion granulation, and its performance is listed in the attached table.

[0036] Example 2

[0037] 100 parts of polycarbonate resin (Taiwan Chi Mei 110L, MFI of 10g/10min), 3 parts of light diffusing agent (Japan Shin-Etsu KMP-590, Japan Nakabuchi MP-90 in 1:1 compound, particle size 0.2~ 10μm), 0.2 parts of light stabilizer (Taiwan Yongguang Chemical EV72), 0.8 parts of composite antioxidant (tetra [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, double ( 2,4-Di-tert-butylphenol) pentaerythritol diphosphite, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate], 4 ,4'-thiobis(6-tert-butyl-3-methylphenol according to 1.2:1:1:1:1 compounding), 0.5 part of composite flame retardant (perfluorobutanesulfonic acid, benzophenone Potassium acid and p-biphenylene tetraphenyl bisphosphate are compounded at 2.7:1:1), 0.2 part of white oil, 0.1 part of fluorescent whitening agent, 0.2 part of toner, and processed according to the process given in Example 1. , Extrusion granulation to obtain the light diffusion material composite material of the present invention, the performance is listed in the attached table.

[0038] Example 3

[0039] Polycarbonate resin (Bayer 2407, melt index MFI is 20g/10min) 100 parts, light diffusing agent 4 parts (methyl methacrylate resin particles, particle size 0.2-10μm), light stabilizer 2 parts (Cytec UV -5411), 0.3 parts of composite antioxidant (tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, tris[2.4-di-tert-butylphenyl] phosphorous acid Ester, triethylene glycol bis[β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate], 2,6-di-tert-butyl-4-methylphenol 1:1:1:1 compound), 3.1 parts of composite flame retardant (perfluorobutane sulfonic acid, potassium benzophenol sulfonate, p-biphenylene tetraphenyl bisphosphate according to 2:1:1 Compound), 0.2 part of white oil, 0.1 part of fluorescent whitening agent, 0.2 part of toner, processed according to the process given in Example 1, and extrusion granulated to obtain the light diffusion material composite material of the present invention. The properties are listed in the attachment table.