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Conductive ABS (Acrylonitrile Butadiene Styrene) resin and preparation method thereof

A technology of ABS resin and carbon nanotubes, which is applied in the field of conductive ABS resin and its preparation, can solve the problems of reduced comprehensive mechanical properties of composite materials, limited application range of materials, high specific surface area and chemical inertness, etc.

Active Publication Date: 2014-05-07
佛山市南海宝利玛工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The improvement of the electrical conductivity of ABS in the prior art is often filled with graphite, metal powder, etc. Although these materials have better electrical and thermal conductivity, they cause a large decrease in the comprehensive mechanical properties of the entire composite material, thereby limiting The scope of application of the material
Since the discovery of carbon nanotubes, its large aspect ratio, good thermal and electrical conductivity, and almost the same density as the polymer matrix, and its high specific surface area and chemical inertness, as well as the flexibility shown by the thin and long make it Difficult to be well compatible and dispersed with polymer matrix

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Pretreatment of carbon nanotubes: immerse carbon nanotubes with a diameter of 50nm in an ethanol solution containing 5% by mass of coupling agent KH550, sonicate for 30min, and dry at 60°C to obtain treated carbon nanotubes;

[0027] (2) 80kg ABS, 40kg polyphenylene ether, 5kg maleic anhydride grafted polypropylene, 2kg ethylene bis stearamide, 0.1kg KH550, 5kg polyethylene wax and 10kg carbon nanotubes treated in step (1), Add it into a high-speed mixer and mix evenly, the mixing temperature is 85°C, and the mixing time is 10 minutes to obtain a mixed material;

[0028] (3) Feed the mixed material in step (2) into the twin-screw extruder through the precision metering feeding device, and the material is fully fused under the shearing, mixing and conveying of the screw, and finally extruded and granulated;

[0029] The temperature of each section of the extruder is as follows: the first section is 170°C, the second section is 190°C, the third section is 210°C, the f...

Embodiment 2

[0032] (1) Pretreatment of carbon nanotubes: immerse carbon nanotubes with a diameter of 60nm in an ethanol solution containing 5% by mass of coupling agent KH550, sonicate for 30min, and dry at 60°C to obtain treated carbon nanotubes;

[0033] (2) 90kg ABS, 20kg polyphenylene ether, 2kg maleic anhydride grafted polypropylene, 5kg ethylene bisstearamide, 1kg KH550, 10kg polyethylene wax and 5kg carbon nanotubes treated in step (1), Add it into a high-speed mixer and mix evenly, the mixing temperature is 80°C, and the mixing time is 5 minutes to obtain a mixed material;

[0034] (3) Feed the mixed material in step (2) into the twin-screw extruder through the precision metering feeding device, and the material is fully fused under the shearing, mixing and conveying of the screw, and finally extruded and granulated;

[0035] The temperature of each section of the extruder is as follows: the first section is 160°C, the second section is 180°C, the third section is 200°C, the fourt...

Embodiment 3

[0038] (1) Pretreatment of carbon nanotubes: immerse carbon nanotubes with a diameter of 55nm in an ethanol solution containing 5% by mass of coupling agent KH550, sonicate for 30min, and dry at 60°C to obtain treated carbon nanotubes;

[0039] (2) Add 85kgABS, 30kg polyphenylene ether, 3kg maleic anhydride grafted polypropylene, 4kg ethylene bisstearamide, 2kgKH550, 1kg polyethylene wax and 7kg carbon nanotubes treated in step (1) to Mix evenly in a high-speed mixer, the mixing temperature is 83 ° C, and the mixing time is 7 minutes to obtain a mixed material;

[0040] (3) Feed the mixed material in step (2) into the twin-screw extruder through the precision metering feeding device, and the material is fully fused under the shearing, mixing and conveying of the screw, and finally extruded and granulated;

[0041] The temperature of each section of the extruder is as follows: the first section is 180°C, the second section is 200°C, the third section is 220°C, the fourth sectio...

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Abstract

The invention belongs to the field of high molecular materials, and discloses a conductive ABS (Acrylonitrile Butadiene Styrene) resin and a preparation method thereof. The conductive ABS resin which is a compound material is prepared from the following components in parts by weight: 80 to 90 parts of ABS, 20 to 40 parts of polyphenyl ether, 5 to 10 parts of carbon nanotube, 2 to 5 parts of compatilizer, 2 to 5 parts of dispersant, 0.1 to 2 parts of coupling agent and 1 to 10 parts of lubricant. The method comprises the following steps: mixing the components; and extruding the components in a double-screw extruder. Thus, the electrical conductivity, the thermal conductivity and the mechanical property of the prepared compound material are obviously improved.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to a conductive ABS resin and a preparation method thereof. Background technique [0002] Acrylonitrile-butadiene-styrene copolymer (ABS) is a thermoplastic engineering plastic with good impact resistance, chemical resistance, electrical properties and processability. It is a thermoplastic resin and is widely used in electromechanical , chemical industry, military industry, electronic appliances and other fields. [0003] The improvement of the electrical conductivity of ABS in the prior art is often filled with graphite, metal powder, etc. Although these materials have better electrical and thermal conductivity, they cause a large decrease in the comprehensive mechanical properties of the entire composite material, thereby limiting The scope of application of the material. Since the discovery of carbon nanotubes, its large aspect ratio, good thermal and electrical conductivity, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L71/12C08L51/06C08K9/06C08K7/00C08K3/04C08K5/20
Inventor 石磊
Owner 佛山市南海宝利玛工程塑料有限公司
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