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Preparation method for anti-static modified plastic

An antistatic and modified technology, used in the production of antistatic plastics, can solve the problems of easy agglomeration and adhesion between carbon nanotubes and graphene, and achieve the effect of ideal mechanics and low filling amount.

Active Publication Date: 2017-11-07
扬州市维纳复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that carbon nanotubes and graphene are easy to agglomerate and have poor interface adhesion with plastics, the invention provides a preparation method of antistatic modified plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Weigh 20g of graphene microflakes, 60g of carbon nanotubes, organosilicon-modified tetraethyl orthosilicate pre-condensed precursor (OM-SiO 2 P) Solution 2g, the OM-SiO 2 The P solution was added into the high-speed stirred graphene microsheet and carbon nanotube mixed system by spraying, and then stirred at a high speed for 10 minutes.

[0027] (2) Weigh 1918g of polycarbonate, mix it with the modified nanomaterial in step (1) with a high mixer for 10 minutes, extrude and granulate through a twin-screw machine, and obtain a graphene / carbon nanotube / polycarbonate composite material , vulcanized and pressed on a flat vulcanizing machine at 260°C for 10 minutes, and the measured volume resistivity was 2×10 6 Ω·cm.

Embodiment 2

[0029] (1) Weigh 80g of graphene microflakes, 20g of carbon nanotubes, organosilicon-modified tetraethyl orthosilicate pre-condensed precursor (OM-SiO 2 P) Solution 4g, the OM-SiO 2 The P solution was added into the high-speed stirred graphene microsheet and carbon nanotube mixed system by spraying, and then stirred at a high speed for 10 minutes.

[0030] (2) Weigh 1896g of polyether ether ketone, mix it with the modified nanomaterial in step (1) with a high-speed mixer for 10 minutes, extrude and granulate through a twin-screw machine, and prepare graphene / carbon nanotubes / polyether ether ketone Composite materials were vulcanized and pressed on a flat vulcanizing machine at 400°C for 10 minutes, and the measured volume resistivity was 4×10 6 Ω cm, the friction coefficient decreased from 0.424 to 0.340, and the friction performance was improved.

Embodiment 3

[0032] (1) Weigh 160g of graphene microflakes, 10g of carbon nanotubes, organosilicon-modified tetraethyl orthosilicate pre-condensed precursor (OM-SiO 2 P) Solution 10g, the OM-SiO 2 The P solution was added into the high-speed stirred graphene microsheet and carbon nanotube mixed system by spraying, and then stirred at a high speed for 10 minutes.

[0033] (2) Weigh 1820g of polyethylene, mix it with the modified nanomaterial in step (1) with a high mixer for 10min, extrude and granulate through a twin-screw machine, and obtain a graphene / carbon nanotube / polyethylene composite material. Vulcanize and press the tablet on a flat vulcanizing machine at 180°C for 10 minutes, and the measured volume resistivity is 2×10 6 Ω·cm.

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Abstract

The invention provides a preparation method for an anti-static modified plastic and relates to the technical field of production of the anti-static plastic. The preparation method comprises the following steps: adding an organosilicone modified ethyl orthosilicate pre-condensed precursor into a quickly stirred mixed system of graphene microchip and carbon nano tube in the manner of spraying, and then fully mixing with plastic particles, extruding and pelletizing, thereby acquiring a synergic anti-static modified plastic. According to the invention, the gathering problem of graphene microchip and carbon nano tube is solved, the introduction of organic groups in OM-SiO2P can endow the carbon nano tube and the plastic substrate with the interface bonding force, the goal of low filling volume required for reaching the anti-static performance index is achieved and the acquired nanometer composite material has ideal mechanical, thermodynamic and wear-resisting properties.

Description

technical field [0001] The invention relates to the technical field of production of antistatic plastics. Background technique [0002] Plastic plays an important role in people's daily life and production. It has high resistivity and good insulation. It is usually widely used as insulating material. However, plastic is prone to static electricity during production, transportation and use, causing dust collection. , electric shock or even explosion and other vicious events. Therefore, the demand for antistatic technology of plastics is increasing, and many carbon materials are often used as plastic antistatic modification additives due to their high conductivity. [0003] Graphene has excellent electrical, thermal and mechanical properties. It is the most ideal two-dimensional nanomaterial today. It is expected to be used in the preparation of hydrogen storage equipment, solar cells and lithium battery electrode materials, biosensors and engineering plastics. Carbon nanotu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L61/16C08L23/06C08K9/06C08K3/36C08K7/00C08K3/04C08K7/24
CPCC08K3/04C08K3/36C08K7/00C08K7/24C08K9/06C08K2201/001C08K2201/011C08K2201/017C08L2201/04C08L69/00C08L61/16C08L23/06
Inventor 朱爱萍张翠翠徐培兴毛正和彭勃
Owner 扬州市维纳复合材料科技有限公司
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