High-toughness halogen-free flame-retardanting reclaimed polycarbonate compound and preparation method thereof
A technology of flame-retardant polycarbonate and polycarbonate, which is applied in the field of environment-friendly halogen-free flame-retardant polycarbonate recycled material compound and its preparation, and can solve the problems of reduced intrinsic viscosity, reduced molecular weight, and inability to meet product requirements, etc. , to achieve excellent flame retardant properties and less smoke
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Embodiment 1
[0027] Take polycarbonate recycled materials, core-shell structure silicone rubber latex particles, compatibilizer, antioxidant, light stabilizer, ultraviolet absorber, kaolin, polytetrafluoroethylene, and mix all raw materials according to the following composition and mass percentage To blend:
[0028] Polycarbonate Recycled 81.0%
[0029] Core-shell structure silicone rubber latex particles 10.0%
[0030] Bisphenol A type solid epoxy resin 7050 7.0%
[0031] Antioxidant 1076 0.2%
[0032] Antioxidant 1010 0.2%
[0033] Light stabilizer 622 0.3%
[0034] UV absorber UL-326 0.2%
[0035] Kaolin 0.8%
[0036] PTFE 0.3%
[0037] The blend is melted, blended, extruded, cooled, and granulated through a twin-screw extruder. The screw speed is 260 rpm. ℃. Then, the obtained pellets were fully dried in a vacuum oven at 80° C., and injected into standard mechanical property test specimens and flame retardancy test specimens on an injection molding machine. The mechanical pr...
Embodiment 2
[0039] Take polycarbonate recycled materials, core-shell structure silicone rubber latex particles, compatibilizer, antioxidant, light stabilizer, ultraviolet absorber, kaolin, polytetrafluoroethylene, and mix all raw materials according to the following composition and mass percentage To blend:
[0040] Polycarbonate Recycled 87.8%
[0041] Core-shell structure silicone rubber latex particles 10.0%
[0042] Styrene-maleic anhydride copolymer 3.0%
[0043] Antioxidant 1010 0.3%
[0044] Antioxidant 168 0.2%
[0045] Light stabilizer 944 0.2%
[0046] UV absorber UL-326 0.2%
[0047] Kaolin 0.8%
[0048] PTFE 0.5%
[0049] The blend is melted, blended, extruded, cooled, and granulated through a twin-screw extruder. The screw speed is 300 rpm. ℃. Then, the obtained pellets were fully dried in a vacuum oven at 80° C., and injected into standard mechanical property test specimens and flame retardancy test specimens on an injection molding machine. The mechanical properti...
Embodiment 3
[0051] Take polycarbonate recycled materials, core-shell structure silicone rubber latex particles, compatibilizer, antioxidant, light stabilizer, ultraviolet absorber, kaolin, polytetrafluoroethylene, and mix all raw materials according to the following composition and mass percentage To blend:
[0052] Polycarbonate Recycled 87.9%
[0053] Core-shell structure silicone rubber latex particles 7.0%
[0054] Bisphenol A type solid epoxy resin 7050 3.0%
[0055] Antioxidant 1010 0.2%
[0056] Antioxidant 1076 0.1%
[0057] Light stabilizer 944 0.2%
[0058] UV absorber UL-531 0.2%
[0059] Kaolin 1.0%
[0060] PTFE 0.4%
[0061] The blend is melted, blended, extruded, cooled, and granulated through a twin-screw extruder. The screw speed is 250 rpm. ℃. Then, the obtained pellets were fully dried in a vacuum oven at 80° C., and injected into standard mechanical property test specimens and flame retardancy test specimens on an injection molding machine. The mechanical pro...
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