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Graphene master batch, antistatic PPO/PS alloy material and preparation method thereof

A graphene and antistatic technology, which is applied in the field of graphene and PPO/PS antistatic materials and their preparation, can solve the problems of difficult processing and poor melt fluidity of polyphenylene ether, and achieve excellent electrical conductivity, good electrical performance, and remarkable The effect of industrial application value

Active Publication Date: 2016-04-13
余姚中国塑料城塑料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyphenylene ether has poor melt fluidity and is difficult to process

Method used

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  • Graphene master batch, antistatic PPO/PS alloy material and preparation method thereof
  • Graphene master batch, antistatic PPO/PS alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Preparation of a graphene masterbatch

[0026] (1) Preparation of graphene dispersion

[0027] 10 parts by weight of graphene and 0.5 parts by weight of silane coupling agent KH-550 were added to 20 parts by weight of liquid paraffin, and ultrasonic dispersion was used for 15 minutes at room temperature to prepare a graphene dispersion.

[0028] (2) Preparation of polymer solution

[0029] Add 10 parts by weight of polystyrene (HIPS) to 20 parts by weight of turpentine, and stir at room temperature to form a polymer solution.

[0030] (3) Preparation of graphene masterbatch

[0031] Add the graphene dispersion in (1) above to the polymer solution in (2) above at a mixing weight ratio of 1:1, stir at room temperature for 30 minutes, and then heat the above mixture to reflux to collect toluene, turpentine and Liquid paraffin is used to obtain a paste product, namely graphene masterbatch.

Embodiment 2

[0032] Example 2 Preparation of PPO / PS antistatic composite material

[0033] Mix 80 parts by weight of polyphenylene ether and 10 parts by weight of grafted polyphenylene ether to obtain a PPO resin; weigh 0.5 parts by weight of the graphene masterbatch of Example 1 and add it to the PPO resin, and mix at high speed for 5-10 minutes. , Use twin-screw extruder to extrude and granulate to obtain graphene and PPO / PS antistatic composite material.

[0034] The twin-screw extruder is equipped with a temperature control device and a vacuum device. The diameter of the screw is The length-to-diameter ratio is 40:1, the temperature setting of the twin screw extruder is 240℃, 245℃, 250℃, 255℃, 265℃, 270℃, 275℃, 280℃, and the extrusion temperature of the die is 275℃ , The screw speed range is 300rpm.

Embodiment 3

[0035] Example 3 Preparation of PPO / PS antistatic composite material

[0036] This embodiment is basically the same as Embodiment 2, and the difference lies in: the proportions of polyphenylene ether, grafted polyphenylene ether, and graphene master batches are different. See Table 1 for details.

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Abstract

The invention discloses a graphene master batch. The graphene master batch includes, by weight, 1.0-10 parts of polystyrene, 1.0-10 parts of graphene and 0.01-1 part of a silane coupling agent. The antistatic PPO / PS alloy material prepared by using the graphene master batch has a better electrical performance, the surface resistances of the graphene and the antistatic PPO / PS alloy material prepared by adding the 1% graphene master batch are smaller than 1010 Omega, the use safety of the antistatic PPO / PS alloy material in a high-voltage-resisting part in an electrical appliance product is improved, and the graphene master batch has the remarkable value in industrial application.

Description

Technical field [0001] The invention relates to thermoplastic engineering plastics, in particular to a graphene and PPO / PS antistatic material and a preparation method thereof. Background technique [0002] As one of the world's five major engineering plastics, PPO material is a thermoplastic engineering plastic with excellent performance. Unmodified polyphenylene ether (PPO) resin has good mechanical properties, electrical properties, heat resistance, flame resistance and chemical stability, etc. Therefore, polyphenylene ether is a widely used engineering plastic. However, polyphenylene ether has poor melt fluidity and is difficult to process. In order to improve the processing properties of polyphenylene ether, those skilled in the art often modify it with polystyrene or nylon. Through related research, it is found that ordinary polyphenylene ether / PS alloy has outstanding electrical insulation. The excellent electrical properties of polyphenylene ether / PS alloy make it wide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/12C08L91/06C08L91/00C08L25/06C08K3/04C08K5/544C08J3/22
CPCC08J3/226C08J2371/12C08J2425/06C08J2471/12C08J2491/00C08J2491/06C08L71/123C08L91/00C08L91/06C08L2201/04C08L2203/20C08L2205/02C08L2205/03C08L2205/035C08L25/06C08K3/04C08K5/544C08L71/126
Inventor 邵军李文春张学锋任业伟王承刚杨焕军王强
Owner 余姚中国塑料城塑料研究院有限公司
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