Environment-friendly modified ASA (Acrylonitrile Styrene Acrylate) profiled bar base station antenna outer cover and preparation method thereof
An environment-friendly, base station antenna technology, applied in the field of profiled cover and its preparation, can solve problems such as lack of long-term resistance to ultraviolet radiation, continuous production of twin-screw extruders, and no thermal conductivity of materials involved. , to achieve the effect of excellent UV resistance, low thermal conductivity and excellent mechanical properties
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[0031] Example 1:
[0032] Raw material formula: ASA resin (220℃×10kg melt flow rate=2.5g / 10min) 70, αMSAN heat-resistant modified resin (mass ratio α-methylstyrene / acrylonitrile=75 / 25, 220℃×10kg melting Body flow rate 3.0g / 10min) 30, chlorinated polyethylene 15, high glue ASA resin (PBA content 60wt%) 5, oxidized polyethylene wax 1.5, ultraviolet light absorber UV3261.0, hindered amine light stabilizer C9440. 5. Antioxidant B2150.25, mercaptan organotin 0.6, surface modified porous silica 2, coloring agent 0.05.
[0033] Preparation Process:
[0034] ①First, chlorinated polyethylene, mercaptan organotin, oxidized polyethylene wax, antioxidant B215, ultraviolet light absorber UV326, hindered amine light stabilizer C944 and other raw materials are processed in a vertical plastic mixer at 20°C. Pre-mix, rotate forward for 2 minutes, reverse for 2 minutes, and mix for 8 minutes in sequence.
[0035] ②Add the premixed chlorinated polyethylene premix containing stabilizers and other addi...
Example Embodiment
[0038] Example 2:
[0039] Raw material formula: ASA resin (220℃×10kg melt flow rate=3.3g / 10min) 30, αMSAN heat-resistant modified resin (mass ratio α-methylstyrene / acrylonitrile=70 / 30, 220℃×10kg melting Body flow rate 3.6g / 10min) 30, chlorinated polyethylene 10, high-glue ASA resin (PBA content 70wt%) 10, oxidized polyethylene wax 0.5, magnesium stearate 0.5, ultraviolet light absorber UV3261.0, hindered amine Class light stabilizer C9440.5, antioxidant B2150.25, mercaptan organotin 0.5, surface modified porous silica 5, colorant 0.05.
[0040] Preparation Process:
[0041] ①First, chlorinated polyethylene, mercaptan organotin, oxidized polyethylene wax, magnesium stearate, antioxidant B215, ultraviolet light absorber UV326, hindered amine light stabilizer C944 and other raw materials are placed in a stand at 25°C. In the mixing process, the plastic mixer performs pre-mixing. During the mixing process, it rotates forward for 2 minutes, reverses for 2 minutes, and then mixes for 4 ...
Example Embodiment
[0045] Example 3:
[0046] Raw material formula: ASA resin (220℃×10kg melt flow rate=3.0g / 10min) 35, αMSAN heat-resistant modified resin (mass ratio α-methylstyrene / acrylonitrile=70 / 30, 220℃×10kg melting Body flow rate 3.6g / 10min) 65, chlorinated polyethylene 15, high glue ASA resin (PBA content 65wt%) 5, acrylic impact modifier 5, ethylene bis stearic acid amide 1.0, stearic acid Barium 0.5, Calcium stearate 0.5, UV absorber UV3260.7, hindered amine light stabilizer C9440.8, rutile titanium dioxide 3, antioxidant B2150.25, mercaptan organic tin 0.7, surface modified porous two Silicon oxide 3, colorant 0.06.
[0047] Preparation Process:
[0048] ①First, chlorinated polyethylene, mercaptan organotin, ethylene bis stearic acid amide, barium stearate, calcium stearate, antioxidant B215, ultraviolet light absorber UV326, hindered amine light stabilizer C944, etc. The raw materials are pre-mixed in a vertical plastic mixer at 30°C. During the mixing process, they are rotated forward ...
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