Weather-resistant polystyrene masterbatch and preparation method thereof
A technology of polystyrene and masterbatch, which is applied in the field of polystyrene material production, can solve the problems of easy aging and discoloration, restricting the application range of polystyrene, and the decline of polystyrene mechanical properties, so as to achieve the improvement of mechanical properties and the improvement of mechanical properties , low cost effect
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Example Embodiment
[0019] Example 1:
[0020] (1) Weigh each raw material according to the weight ratio as follows:
[0021] Polystyrene raw material: 45
[0022] Dispersing lubricant (TAS-2A): 0.5
[0023] Antioxidant (ethylene-octene copolymer): 1.0
[0024] Colorant: 4.5
[0025] Titanate coupling agent: 1.0
[0026] UV absorber (2-hydroxy-4-n-octyloxybenzophenone): 3.0
[0027] Light stabilizer: 3.5
[0028] Titanium dioxide: 12
[0029] Inorganic filler: (calcium carbonate talc powder 27 mica powder 27 kaolin 27 silica 27)
[0030] (2) Dry-mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then place them in a twin-screw extruder to melt, extrude, cool, pelletize, and package the finished product; among them, twin-screw extruder The temperature in zone one is 90-100℃, zone two is 160-190℃, zone three is 210-220℃, zone four is 210-215℃; zone five is 190-200℃, residence time is 1-2 minutes , The pressure is 10-15Mpa.
[0031] Experimental results:
[0032]
[0033] The a...
Example Embodiment
[0034] Example 2:
[0035] (1) Weigh each raw material according to the weight ratio as follows:
[0036] Polystyrene raw material: 40
[0037] Dispersing lubricant (TAS-2A): 0.3
[0038] Antioxidant (ethylene-octene copolymer): 0.8
[0039] Colorant: 4.0
[0040] Titanate coupling agent: 0.8
[0041] Ultraviolet light absorber (2-hydroxy-4-n-octyloxybenzophenone): 2.5
[0042] Light stabilizer: 3.0
[0043] Titanium dioxide: 10
[0044] Inorganic filler: (calcium carbonate talc powder 25 mica powder 25 kaolin 25 silica 25)
[0045] (2) Dry-mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then place them in a twin-screw extruder to melt, extrude, cool, pelletize, and package the finished product; among them, twin-screw extruder The temperature in zone one is 90-100℃, zone two is 160-190℃, zone three is 210-220℃, zone four is 210-215℃; zone five is 190-200℃, residence time is 1-2 minutes , The pressure is 10-15Mpa.
[0046] Experimental results:
[0047]...
Example Embodiment
[0049] Example 3:
[0050] (1) Weigh each raw material according to the weight ratio as follows:
[0051] Polystyrene raw material: 50
[0052] Dispersing lubricant (TAS-2A): 0.7
[0053] Antioxidant (ethylene-octene copolymer): 1.2
[0054] Colorant: 5.0
[0055] Titanate coupling agent: 1.2
[0056] Ultraviolet light absorber (2-hydroxy-4-n-octyloxybenzophenone): 3.5
[0057] Light stabilizer: 4.0
[0058] Titanium dioxide: 15
[0059] Inorganic filler: (calcium carbonate talc powder 30 mica powder 30 kaolin 30 silica 30)
[0060] (2) Dry-mix the above-mentioned various raw materials in a high-speed mixer for 3-5 minutes, and then place them in a twin-screw extruder to melt, extrude, cool, pelletize, and package the finished product; among them, twin-screw extruder The temperature in zone one is 90-100℃, zone two is 160-190℃, zone three is 210-220℃, zone four is 210-215℃; zone five is 190-200℃, residence time is 1-2 minutes , The pressure is 10-15Mpa.
[0061] Experimental results:
[0062]...
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