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PC/ABS alloy material suitable for hollow support piece of display and preparation method thereof

A technology of alloy materials and conditions, applied in the field of PC/ABS alloy materials and preparation, can solve the problems such as the inability to manufacture the hollow support of the display and the inability to carry out multiple recycling and reuse, so as to reduce the flow performance, facilitate the forming process, and prevent cracking. Effect

Inactive Publication Date: 2020-06-19
SHENZHEN JIECHUANG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PC / ABS alloys are widely used in the fields of communication electronics, household appliances and automobiles, but the existing PC / ABS alloy materials cannot be used to manufacture hollow supports for displays, and cannot be recycled multiple times

Method used

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  • PC/ABS alloy material suitable for hollow support piece of display and preparation method thereof
  • PC/ABS alloy material suitable for hollow support piece of display and preparation method thereof
  • PC/ABS alloy material suitable for hollow support piece of display and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 85 parts of high melt strength PC and high melt strength PC have a melt index of 3.8g / 10min at 300°C / 1.2kg, 10 parts of high melt strength ABS, and high melt strength ABS at 220°C / The melt index under the condition of 10kg is 3.5g / min, the rubber phase content of high melt strength ABS is 2%, 5 parts of PTFE, 5 parts of ABS-g-MAH, 2.5 parts of four [β-(3,5-ditertiary Butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 10 parts of K glue are put in the blender and mixed evenly, then the raw material mixed evenly is placed in the barrel of the extruder, and the temperature of the twin-screw extruder is set separately For: set the temperature of the first stage to 230°C, the temperature of the second stage to 240°C, the temperature of the third stage to 245°C, the temperature of the fourth stage to 260°C, the temperature of the fifth stage to 260°C, and the temperature of the sixth stage to 255°C , the temperature of the seventh section is 245°C. After being extrud...

Embodiment 2

[0026] 75 parts of high melt strength PC and high melt strength PC have a melt index of 2g / 10min at 300°C / 1.2kg, 18 parts of high melt strength ABS, and high melt strength ABS at 220°C / 10kg The melt index under the conditions is 5g / min, the rubber phase content of high melt strength ABS is 4%, 3 parts of PTFE, 3 parts of ABS-g-MAH, 1.5 parts of four [β-(3,5-di-tert-butyl -4-Hydroxyphenyl) propionic acid] pentaerythritol ester, 6 parts of K glue are put in blender and mix uniformly, then the raw material that mixes homogeneously is placed in extruder barrel, twin-screw extruder temperature is respectively set to: Set the first stage temperature to 230°C, the second stage temperature to 240°C, the third stage temperature to 245°C, the fourth stage temperature to 260°C, the fifth stage temperature to 260°C, the sixth stage temperature to 255°C, and the The temperature of the seventh section is 245°C. After being extruded by an extruder, it is cooled, dried and pelletized to obta...

Embodiment 3

[0028] 60 parts of high melt strength PC and high melt strength PC have a melt index of 2.2g / 10min at 300°C / 1.2kg, 25 parts of high melt strength ABS, and high melt strength ABS at 220°C / The melt index under the condition of 10kg is 3g / min, the rubber phase content of high melt strength ABS is 5%, 0.2 parts of PTFE, 0.3 parts of ABS-g-MAH, 0.3 parts of four [β-(3,5-di-tert-butyl Base-4-hydroxyphenyl) propionic acid] pentaerythritol ester, 2 parts of K glue are put in the blender and mix uniformly, then the raw material that mixes homogeneously is placed in extruder barrel, twin-screw extruder temperature is respectively set to : Set the temperature of the first stage to 230°C, the temperature of the second stage to 240°C, the temperature of the third stage to 245°C, the temperature of the fourth stage to 260°C, the temperature of the fifth stage to 260°C, the temperature of the sixth stage to 255°C, The temperature of the seventh section is 245°C. After being extruded by an ...

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Abstract

The invention discloses a PC / ABS alloy material suitable for a hollow support piece of a display and a preparation method. The PC / ABS alloy material is prepared from the following components in partsby weight: 60 to 85 parts of PC with high melt strength, 10 to 25 parts of ABS with high melt strength, 0.2-5 parts of expanding agent, 0.3-5 parts of compatilizer, 0.1-2.5 parts of an antioxidant and2-11 parts of a flexibilizer. The melt index of the high-melt-strength PC under the condition of 300 DEG C / 1.2 kg is 2-4 g / 10min, and the melt index of the high-melt-strength ABS under the conditionof 220 DEG C / 10kg is 1.5-5 g / min. The PC / ABS alloy material is suitable for a hollow support piece of a display, the melt index of the material is reduced, namely, the flowing property of the materialis reduced, molding processing is facilitated, meanwhile, the material can be recycled for multiple times, and the performance of a product is not influenced.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a PC / ABS alloy material suitable for a hollow support member of a display and a preparation method thereof. Background technique [0002] PC / ABS alloy material is a modified plastic made by mixing polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS). Polycarbonate (PC) is a polymer whose molecular chain repeating unit is carbonate type. It has the advantages of high impact strength, good creep resistance and dimensional stability, heat resistance, and excellent dielectric properties. It also has processing flow. Poor resistance, easy stress cracking, sensitivity to notch, poor chemical resistance and other shortcomings; acrylonitrile-butadiene-styrene terpolymer (ABS resin) has good toughness, rigidity and processability, but in other mechanical properties, etc. There are deficiencies. The performance of PC / ABS alloy can make up for the s...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08L27/18C08L25/10C08K5/134
CPCC08L69/00C08L2205/03C08L2205/06C08L2205/08C08L2205/025C08L2205/035C08L55/02C08L27/18C08L25/10C08K5/1345
Inventor 吴秋琴向继遵郑孝存杨柳张思华
Owner SHENZHEN JIECHUANG NEW MATERIAL CO LTD