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PC/ABS halogen-free flame-retardant alloy with high surface impact strength and preparation method thereof

A high surface impact and alloy technology, which is applied in the field of high surface impact PC/ABS halogen-free flame retardant alloy and its preparation, can solve the problems of poor surface impact performance and achieve the effect of improving toughness and surface impact strength

Active Publication Date: 2014-09-17
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different thickness of the panel and the effect of the notch on the right angle of the rib, the surface impact performance has been poor

Method used

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  • PC/ABS halogen-free flame-retardant alloy with high surface impact strength and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A PC / ABS halogen-free flame-retardant alloy with excellent surface impact performance and a preparation method thereof, the method comprising the following steps:

[0048] (1) Weigh each component by weight: PC-1100 is 40Kg, PC-2200 is 40Kg, ABS8391 is 15Kg, MBS: EM 505 is 5Kg, BDP is 19Kg, compatibilizer XIRAN SZ231105Kg, antioxidant 245 is 0.1Kg, antioxidant 168 is 0.1Kg, lubricant PETS is 0.5Kg, silicone powder is 0.5g.

[0049] (2) Place the other components prepared except the flame retardant in a medium-speed mixer, and mix for 20 minutes to obtain a mixed material;

[0050] (3) Put the mixed material into a twin-screw extruder, control the screw speed to 500rpm, melt and extrude, and granulate to obtain the product. The twin-screw extruder includes ten temperature control zones, the temperature of temperature control zone 1-2 is 180-260°C, the temperature of temperature control zone 3-4 is 180-260°C, the temperature of temperature control zone 5-6 is 180°C ~260...

Embodiment 2

[0052] (1) Weigh each component by weight: PC-1100 is 40Kg, PC-2200 is 40Kg, ABS8391 is 15Kg, MBS: EXL2620 is 5Kg, BDP is 19Kg, compatibilizer XIRAN SZ231105Kg, antioxidant 245 is 0.1 Kg, antioxidant 168 is 0.1Kg, lubricant PETS is 0.5Kg, silicone powder is 0.5g.

[0053] (2) Place the other components prepared except the flame retardant in a medium-speed mixer, and mix for 20 minutes to obtain a mixed material;

[0054] (3) Put the mixed material into a twin-screw extruder, control the screw speed to 500rpm, melt and extrude, and granulate to obtain the product. The twin-screw extruder includes ten temperature control zones, the temperature of temperature control zone 1-2 is 180-260°C, the temperature of temperature control zone 3-4 is 180-260°C, the temperature of temperature control zone 5-6 is 180°C ~260°C, the temperature of temperature control zone 7-8 is 180-260°C, and the temperature of temperature control zone 9-10 is 180-260°C. There are two vacuum places on the tw...

Embodiment 3

[0056] (1) Weigh each component by weight: PC-1100 is 40Kg, PC-2200 is 40Kg, ABS8391 is 15Kg, MBS: EXL2603 is 5Kg, BDP is 19Kg, compatibilizer XIRAN SZ231105Kg, antioxidant 245 is 0.1 Kg, antioxidant 168 is 0.1Kg, lubricant PETS is 0.5Kg, silicone powder is 0.5g.

[0057] (2) Place the other components prepared except the flame retardant in a medium-speed mixer, and mix for 20 minutes to obtain a mixed material;

[0058] (3) Put the mixed material into a twin-screw extruder, control the screw speed to 500rpm, melt and extrude, and granulate to obtain the product. The twin-screw extruder includes ten temperature control zones, the temperature of temperature control zone 1-2 is 180-260°C, the temperature of temperature control zone 3-4 is 180-260°C, the temperature of temperature control zone 5-6 is 180°C ~260°C, the temperature of temperature control zone 7-8 is 180-260°C, and the temperature of temperature control zone 9-10 is 180-260°C. There are two vacuum places on the tw...

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Abstract

The invention relates to a PC / ABS halogen-free flame-retardant alloy with high surface impact strength and a preparation method thereof. The alloy comprises 70-90 weight parts of PC, 5-20 weight parts of ABS, 0.5-5 weight parts of compatilizer, 2-10 weight parts of flexibilizer, 0.1-1 weight parts of anti-oxidant, 0.1-1 weight parts of lubricant, and 5-20 weight parts of flame retardant. The preparation method comprises the following steps: preparing raw materials according to the above ingredients and weight parts, putting the raw materials except the flame retardant in a medium-speed mixer, mixing for 5-30 min to obtain a mixed material, finally putting the mixed material in a double-screw extruder, adding the flame retardant from a side position, controlling the rotating speed of the screws to 180-600 rpm, carrying out melting extrusion, and granulating to obtain a product. Compared with the prior art, the PC / ABS halogen-free flame-retardant alloy disclosed herein is prepared by using the specific flexibilizer, thus the surface impact strength of the PC / ABS halogen-free flame-retardant alloy is improved.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a PC / ABS halogen-free flame-retardant alloy with high surface impact and a preparation method thereof. Background technique [0002] PC / ABS halogen-free flame-retardant alloy is an amorphous engineering plastic with excellent impact strength, heat resistance, high rigidity and other properties. However, PC / ABS alloy has the disadvantage of thickness sensitivity, and the thick-walled notch impact is low. Since PC / ABS halogen-free flame retardant materials are usually used in the housing or panel of electronic devices, they require higher surface impact strength. Due to the uneven thickness of the panel and the effect of the notch at the right angle on the rib, the surface impact performance has always been poor. High surface impact PC / ABS halogen-free flame-retardant alloy materials have always had great calls and demands. Contents of the invention [0003] The object of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08K5/523B29B9/06B29C47/92B29C48/92
CPCB29C47/92B29C48/40B29C48/92B29C2948/9259B29C2948/92885
Inventor 高磊李文强李强罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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