PC/PBT alloy and method for producing the same
A technology of alloy and polycarbonate, which is applied in the field of PC/PBT alloy and its preparation, can solve the problem of less research on alloy halogen-free flame retardancy, achieve good optical performance, improve flame retardancy, and low cost
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[0031] Example 1:
[0032] The weight ratio of PC is 79% (the following are weight ratios), PBT 15.1%, 1010 / 1680.2 / 0.2%, flame retardant PX-2204%, compatibilizer 1%, and others 0.5%. The mixed materials are added to the hopper of the twin-screw extruder, melt blended, extruded and granulated into composite materials. Among them, the temperature settings of each heating zone of the screw are: temperature in zone one: 250°C; zone two: 255°C; zone three: 255°C; zone four: 250°C; head: 245°C; residence time 2 to 3 minutes. The pressure is 15MPa.
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[0033] Example 2:
[0034] The weight ratio of PC is 77% (the following are weight ratios), PBT 14.6%, 1010 / 1680.2 / 0.2%, flame retardant PX-2206%, compatibilizer 1.5%, and others 0.5%. The mixed materials are added to the hopper of the twin-screw extruder, melt blended, extruded and granulated into composite materials. Among them, the temperature settings of each heating zone of the screw are: temperature in zone one: 250°C; zone two: 255°C; zone three: 255°C; zone four: 250°C; head: 245°C; residence time 2 to 3 minutes. The pressure is 15MPa.
Example Embodiment
[0035] Example 3:
[0036] The weight ratio of PC is 76.6% (the following are weight ratios), PBT 13%, 1010 / 1680.2 / 0.2%, flame retardant PX-2208%, compatibilizer 1.5%, and others 0.5%. The mixed materials are added to the hopper of the twin-screw extruder, melt blended, extruded and granulated into composite materials. Among them, the temperature settings of each heating zone of the screw are: temperature in zone one: 250°C; zone two: 255°C; zone three: 255°C; zone four: 250°C; head: 245°C; residence time 2 to 3 minutes. The pressure is 15MPa.
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