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Conductive plastic material and its preparation method and application

A conductive plastic and plastic technology, which is applied in conductive materials, chemical instruments and methods, and electrical components dispersed in non-conductive inorganic materials. Pelletizing and other problems, to achieve the effect of excellent electrical conductivity, long-lasting electrical conductivity and superior performance

Inactive Publication Date: 2009-07-22
JIANGMEN KANHOO IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the infusibility and insolubility of conductive polymers, they cannot be processed and shaped, and their use is limited. Moreover, the current production of conductive plastic materials has poor conductivity, or the variety of conductive fillers is scarce, and the dispersion performance of the material is not good. There are some or various fish eyes on the surface of the material, and the materials made are not easy to pull and cut into pellets, so this trend has been curbed to a certain extent.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, weigh 100kg of plastic resin, 10kg of conductive carbon black, 10kg of aluminum powder, and 10kg of polyacetylene, add them to the high-mixer, heat to 80°C, stir at high speed for 5 minutes, add polymer compatibilizer with maleic anhydride, Titanate coupling agent and amine antioxidant, after stirring for 10 minutes, add calcium carbonate 5kg. Pour the prepared mixture into a twin-screw extruder, control the temperature at 160°C, 170°C, 180°C, 190°C, and 200°C, and extrude through the pull bar in the water tank. After the strands are air-cooled, they are cut into granulated finished products by a granulator. Finally, the particles are pumped into a dryer to dry to obtain the desired finished product. The finished product has a resistance of 100 ohms.

Embodiment 2

[0022] First, weigh 120kg of plastic resin, 12kg of conductive carbon black, 12kg of iron powder, and 12kg of polyaniline, add them to a high-mixer, heat to 80°C, stir at high speed for 6 minutes, add acrylic polymer compatibilizer, titanate couple Joint agent and phenolic antioxidant, after continuing to stir for 15 minutes, add talcum powder 6kg. Pour the prepared mixture into a twin-screw extruder, control the temperature at 160°C, 170°C, 180°C, 190°C, and 200°C, and extrude through the pull bar in the water tank. After the strands are air-cooled, they are cut into granulated finished products by a granulator. Finally, the particles are pumped into a dryer to dry to obtain the desired finished product.

Embodiment 3

[0024] First, weigh 140kg of plastic resin, 14kg of conductive carbon black, 14kg of a mixture of copper powder and aluminum powder, and 14kg of polythiophene, add them to a high-mixer, heat to 80°C, stir at high speed for 5 minutes, and add acrylic polymer compatibilizer , titanate coupling agent and phenolic antioxidant, after stirring for 10 minutes, add 8 kg of talcum powder. Pour the prepared mixture into a twin-screw extruder, control the temperature at 160°C, 170°C, 180°C, 190°C, and 200°C, and extrude through the pull bar in the water tank. After the strands are air-cooled, they are cut into granulated finished products by a granulator. Finally, the particles are pumped into a dryer to dry to obtain the desired finished product.

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PUM

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Abstract

The invention discloses a conductive plastic material which comprises (by weight ratio) the following materials (by weight percent): carbon black, conductive substance consisting of metal dust and conductive high polymers 10-50%, plastic resin 40-70%, filler 5-10% and auxiliary agent 5-10%. The invention also discloses the process for preparing the material.

Description

technical field [0001] The invention relates to a conductive plastic material, its preparation method and its application in packaging materials, anti-electromagnetic interference materials, keyboard buttons for conductive shielding occasions for electronic appliances, hollow storage battery shells and antistatic materials. Background technique [0002] In the past, plastic materials were insulators. At present, it has become a trend to add some conductive polymer materials into the plastic material to make the plastic material have conductive properties, which can replace metal materials and have more superior performance. However, due to the infusibility and insolubility of conductive polymers, they cannot be processed and shaped, and their use is limited. Moreover, the current production of conductive plastic materials has poor conductivity, or the variety of conductive fillers is scarce, and the dispersion performance of the material is not good. There are some or all k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L49/00C08L79/02C08L65/00C08K3/08H01B1/22B29C47/92B29C47/40C09K3/16H05K9/00B29C48/92
CPCB29C47/92
Inventor 陈勇郑顺涛万国江
Owner JIANGMEN KANHOO IND