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Polymer antistatic and conductive composite material and preparation method thereof

A technology of conductive composite materials and polymers, applied in the direction of conductive materials dispersed in non-conductive inorganic materials, chemical instruments and methods, and other chemical processes, to achieve the effect of simple preparation process and good volume conductivity

Inactive Publication Date: 2010-06-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus limiting the application of polymer-based conductive composites in many fields

Method used

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  • Polymer antistatic and conductive composite material and preparation method thereof
  • Polymer antistatic and conductive composite material and preparation method thereof
  • Polymer antistatic and conductive composite material and preparation method thereof

Examples

Experimental program
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Embodiment 1～10

[0022] Examples 1 to 10: polymer-based antistatic and conductive composite materials were prepared according to the following specific steps and performance tests were performed. Preparation process: at a processing temperature of 130°C, the vinyl copolymer and the conductive filler are mixed and processed for 10 minutes to make a masterbatch. Then, at a processing temperature of 180°C, the polypropylene, polymethyl methacrylate and the prepared masterbatch were put into an internal mixer for mixing and processing for 6 minutes in proportion to obtain a polymer-based antistatic and conductive composite material.

[0023] Hot press at 180°C for 15 minutes in a flat vulcanizer, with a pressure of 15Mpa, to obtain a test sample of 35×12×1.4mm, and test the electrical properties after standing for 6 hours. The low resistance is tested with a smart multimeter (3146A, ESCORT). The high resistance is measured with a ZC36 ultra-high resistance tester. When measuring light transmitta...

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Abstract

The invention discloses a polymer antistatic and conductive composite material, comprising 35-55% of polypropylene, 35-55% of polymethylmethacrylate, 5-25% of vinyl copolymer and 0.1-5% of conductive fillers in percent by volume. The composite material is prepared by mixing the components in an internal mixer or an extruder. The composite material has good volume conductivity under very low filler content, and the volume conductivity can be adjusted in larger range. Meanwhile, the composite material can be prepared into films with good conductivity and transparency, thus changing the shortcoming that the materials in the common polymer systems filled with conductive fillers are not transparent as the required fillers have high content.

Description

technical field [0001] The invention relates to a polymer-based antistatic and conductive composite material and a preparation method thereof. In particular, it is a filled antistatic and conductive composite material based on a multi-polymer blend. Background technique [0002] Polymer-based conductive composite material is a kind of functional composite material made by filling conductive fillers (such as various metal powders, metal fibers, carbon black, carbon fibers, etc.) into the polymer matrix in a certain way and processing technology. . This kind of material has many applications in antistatic, electromagnetic shielding, circuit electronic components, sensors and other fields. At the same time, with the development of applications, the requirements for materials are getting higher and higher. A major aspect is how to reduce the filler content in the material while obtaining excellent electrical conductivity. Because a high amount of conductive filler will not o...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L33/12C08L23/08C08L33/02C08L33/08C08L31/04C08K3/04C08K7/00C08K3/08C09K3/16H01B1/22H01B1/24
Inventor 沈烈杨辉王方权贾伟灿
Owner ZHEJIANG UNIV
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