Toughened conducting material and preparation method for toughened conducting material

A conductive material and toughening technology, which is applied in the field of toughened conductive materials and their preparation, can solve the problems of reducing the amount of conductive filler, reducing the mechanical properties of materials, and reducing the toughness of materials, so as to improve the electrical conductivity, improve the dispersion effect, and enhance the mechanical properties. performance effect

Active Publication Date: 2012-07-18
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, structural conductive polymer materials have not been actively promoted and used due to factors such as difficult processing and unstable mechanical properties of materials.
However, the large amount of conductive fillers needed to be added to prepare composite conductive polymers leads to a decrease in the mechanical properties of the material, especially the significant decrease in the toughness of the material.
The method of adding compound conductive fillers utilizes the synergistic effect between different conductive fillers to improve the conductivity of the material and reduce the amount of conductive fillers. At the same time, conductive fillers and fillers are added to polypropylene, polyethylene, and The toughened conductive material prepared in the alloy material prepared by the copolymer of ethylene octene has not been reported

Method used

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  • Toughened conducting material and preparation method for toughened conducting material

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Effect test

Embodiment 1

[0032] 51 parts of polypropylene (parts by weight, the same below), 10 parts of linear low-density polyethylene, 15 parts of ethylene octene copolymer, 5 parts of heavy calcium above 100 mesh, 3.5 parts of grafted maleic anhydride of polypropylene as compatibilizer, silane 0.2 parts of coupling agent, 15 parts of carbon fiber, 10100.3 parts of antioxidant.

[0033] Put polypropylene, linear low-density polyethylene, ethylene octene copolymer, calcium carbonate, polypropylene grafted maleic anhydride, silane coupling agent and antioxidant 1010 into a high-speed mixer according to the above ratio and mix for 5 minutes Take it out, extrude and granulate in the twin-screw extruder, add carbon fiber in the glass fiber feeding port of the twin-screw extruder according to the above ratio, set the temperature of the extruder at 175-215°C, and inject the obtained pellets into The splines were made in the injection molding machine, and the temperature of the injection molding machine wa...

Embodiment 2

[0035] 40 parts of polypropylene, 10 parts of linear low density polyethylene, 20 parts of ethylene octene copolymer, 10 parts of light calcium above 100 mesh, 3.5 parts of polypropylene grafted maleic anhydride, 0.2 parts of aluminate coupling agent Parts, 15 parts of carbon fiber, 1 part of multi-walled carbon nanotube, 10100.3 parts of antioxidant.

[0036] Polypropylene, linear low density polyethylene, ethylene octene copolymer, calcium carbonate, compatibilizer polypropylene grafted maleic anhydride, aluminate coupling agent, multi-walled carbon nanotubes and antioxidant 1010 in the above ratio Put it in a high-speed mixer and mix it for 5 minutes, take it out, extrude and granulate in a twin-screw extruder, add carbon fiber to the glass fiber feeding port of the twin-screw extruder according to the above ratio, and set the temperature of the extruder at 175- At 215°C, the obtained pellets were made into splines in an injection molding machine, and the temperature of the...

Embodiment 3

[0038] 50 parts of polypropylene, 5 parts of linear low density polyethylene, 20 parts of ethylene octene copolymer, 5 parts of light calcium above 100 mesh, 3.5 parts of polypropylene grafted maleic anhydride as compatibilizer, 0.3 parts of titanate coupling agent , 1 part of multi-walled carbon nanotubes, 15 parts of conductive carbon black, and 1680.2 parts of antioxidant.

[0039] Polypropylene, linear low density polyethylene, ethylene octene copolymer, calcium carbonate, compatibilizer polypropylene grafted with maleic anhydride, aluminate coupling agent, multi-walled carbon nanotubes, conductive carbon black and antioxidant 168 is put into the high-speed mixer according to the above ratio and mixed for 5 minutes, then taken out, extruded and granulated in the twin-screw extruder, and the temperature of the extruder is set at 175-215°C, and the obtained pellets are made in the injection molding machine The temperature of the injection molding machine is set at 190-220°C,...

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Abstract

The invention belongs to the technical field of polymer composites and discloses a toughened conducting material and a preparation method for the toughened conducting material. The toughened conducting material disclosed by the invention comprises the following components in parts by weight: 40-70 parts of polypropylene, 5-15 parts of polyethylene, 5-20 parts of ethylene-octene copolymer, 0-20 parts of calcium carbonate, 2-5 parts of compatilizer, 0.1-0.5 parts of coupling agent, 2-25 parts of conducting packing and 0.1-0.5 parts of antioxygen. The preparation method for the toughened conducting material disclosed by the invention comprises the following steps of: weighing 40-70 parts of polypropylene, 5-15 parts of polyethylene, 5-20 parts of ethylene-octene copolymer, 0-20 parts of calcium carbonate, 2-5 parts of compatilizer, 0.1-0.5 parts of coupling agent, 2-25 parts of conducting packing and 0.1-0.5 parts of antioxygen; mixing in a high-speed mixing machine for 5 minutes; then taking out; performing extruding granulation in a twin-screw extruder to prepare the toughened conducting material, wherein the temperature of the extruder is set to be 175-215 DEG C. The material disclosed by the invention can be widely applied to the field of automobiles, electrical and electronic equipment, industrial machinery and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a toughened conductive material and a preparation method thereof. Background technique [0002] Conductive polymer materials are divided into two types: structural type and composite type. Structural conductive polymer material refers to the polymer material structure itself or the polymer material with conductive function after doping; composite type is made of carbon black, graphite, carbon fiber It is a conductive material prepared by blending and modifying carbon such as carbon nanotubes as a conductive material. Among them, structural conductive polymer materials have not been actively promoted and used due to factors such as difficult processing and unstable mechanical properties of materials. However, the large amount of conductive filler needed to be added to prepare composite conductive polymers leads to a decrease in the mechanical prope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L23/08C08K13/04C08K7/06C08K3/04C08K7/00C08K13/02C08K3/26H01B1/24B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 朱敏
Owner HEFEI GENIUS NEW MATERIALS
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