Antistatic polystyrene polymer composite material and preparation method thereof

A technology of polystyrene and composite materials, applied in the field of polymer materials, can solve the problems of non-permanence, affecting material properties, polluting the surrounding environment, etc., and achieves easy processing and molding, good gloss, good mechanical properties and dimensions The effect of stability

Inactive Publication Date: 2017-08-25
SHENZHEN NANOTECH PORT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the advantage of adding surfactant with antistatic effect is that there is no limit to the coloring, and it has little effect on the performance of the material. Its resistivity is 10 8 -10 10 Ω·cm, but it can no longer reduce its resistivity, and the antistatic effect will gradually disappear with time, and it is not permanent, and can only be used in some low-end fields with low requirements; while adding carbon black, Although the materials of graphite, carbon fiber and metal powder are permanent antistatic, their resistivity is in the range of 10 4 -10 9 Ω·cm, but they are added in a large amount, and it is necessary to add 10%-50% to achieve the required antistatic effect, which not only seriously affects the performance of the material, but also its dispersion on the material is not uniform, especially when adding carbon Black products, carbon powder is easy to precipitate on the surface, polluting the packaged products and the surrounding environment

Method used

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  • Antistatic polystyrene polymer composite material and preparation method thereof
  • Antistatic polystyrene polymer composite material and preparation method thereof
  • Antistatic polystyrene polymer composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1 kg of single-walled carbon nanotubes were placed in a vibrating ball mill with a rotation speed of 1000 rpm and a vibration frequency of 1000 times / min for 5 minutes, and 0.5 kg of powdered multifunctional groups with highly active anchoring groups were added during the grinding process. The mixture of the chelate compound and the polymer containing amine anchoring groups is added at a speed of 150 g / min to reduce the adsorption energy between the carbon nanotubes, thereby reducing the agglomeration between the carbon nanotubes, and then the ground carbon The nanotube is placed in the stirrer that rotating speed is 200 revs / min and stirs for 5 minutes, sprays into the dispersant high molecular weight alkylammonium salt copolymer of 0.25 kilogram of mist liquid state during stirring, and spraying frequency is 50 milliliters / minute, makes The dispersant coats the carbon nanotubes to further reduce the agglomeration of the carbon nanotubes, and the carbon nanotubes unifor...

Embodiment 2

[0037] 2 kilograms of double-walled carbon nanotubes were placed in a vibrating ball mill with a rotation speed of 1500 rpm and a vibration frequency of 1200 times per minute for 8 minutes, and 1 kilogram of powdered multifunctional group with highly active anchoring groups was added during the grinding process. The mixture of the chelate compound and the polymer containing amine anchoring groups is added at a rate of 200 g / min to reduce the adsorption energy between carbon nanotubes, thereby reducing the agglomeration between carbon nanotubes, and then the ground carbon The nanotube is placed in the stirrer that rotating speed is 250 revs / min and stirs for 8 minutes, sprays into the dispersant high molecular weight alkylammonium salt copolymer of 0.5 kilogram of atomized liquid state during stirring, and spraying frequency is 100 milliliters / minute, makes The dispersant coats the carbon nanotubes to further reduce the agglomeration of the carbon nanotubes, and the carbon nanot...

Embodiment 3

[0042] The mixture of 4 kg of single-walled carbon nanotubes, double-walled carbon nanotubes and multi-walled carbon nanotubes was ground for 10 minutes in a vibrating ball mill with a rotating speed of 1800 rpm and a vibration frequency of 1500 times per minute. 3 kg of powdery mixture of polyfunctional chelate with highly active anchoring groups, polymers containing amine anchoring groups and polymers containing acid anchoring groups, the addition speed is 400 g / min to reduce carbon nano Adsorption energy between the tubes, thereby reducing the agglomeration between the carbon nanotubes, and then the ground carbon nanotubes are placed in a mixer with a speed of 300 rpm and stirred for 10 minutes, and 1 kg of mist is sprayed during the stirring process. Liquid dispersant high molecular weight alkyl ammonium salt copolymer, the injection frequency is 150 ml / min, so that the dispersant can coat carbon nanotubes, further reduce the agglomeration between carbon nanotubes, and obta...

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Abstract

The invention discloses an antistatic polystyrene polymer composite material which comprises the following components in parts by weight: 60-100 parts of polystyrene, 1-10 parts of carbon nano tubes, 1-15 parts of a flexibilizer, 0.1-1 part of an antioxidant, 0.3-3 parts of a lubricating agent, 1-10 parts of a dispersing agent, 0.1-3 parts off a coupling agent, 0-20 parts of a filling agent and 1-5 parts of a compatilizer. The invention further provides a method for preparing the antistatic polystyrene polymer composite material. The carbon nano tube with the weight fraction of 1-6% is added to serve as an antistatic agent, so that the antistatic polystyrene polymer composite material is high in surface gloss and easy to process and mold and has excellent mechanical property and dimensional stability. Moreover, the material is obvious and uniform in antistatic effect, can achieve the electrical resistivity of 103-108Ohm.m, can achieve a rapid antistatic effect and has permanency. Furthermore, lots of solvents are not used in the process of preparing the polystyrene polymer composite material, the usage amount of the antistatic agent is small, the composite material is convenient for volume production and popularization, and to-be-packaged products and surrounding environments are not polluted.

Description

[0001] 【Technical field】 [0002] The invention relates to polymer materials, in particular to an antistatic polystyrene polymer composite material with good overall performance and antistatic performance, which is green and environment-friendly and a preparation method thereof. [0003] 【Background technique】 [0004] At present, the commonly used polystyrene is divided into general-purpose polystyrene and impact-resistant polystyrene. Among them, general-purpose polystyrene is transparent particles with high strength and modulus, while impact-resistant polystyrene is milky white opaque beads with high impact strength and certain toughness. Both general-purpose polystyrene and impact-resistant polystyrene can be colored arbitrarily, and have good molding processability, chemical corrosion resistance, and electrical properties. They can be injection molded, blistered or extruded into various products, suitable for home appliance shells, instruments Instrument accessories, refr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L51/00C08L53/02C08L23/00C08L23/06C08K13/06C08K9/10C08K7/24C08K3/34C08K5/20
CPCC08L25/06C08K2003/265C08K2003/3045C08K2201/003C08K2201/004C08K2201/011C08K2201/014C08K2201/017C08L2201/04C08L2205/02C08L2205/025C08L2205/035C08L2205/06C08L2205/08C08L2207/04C08L51/006C08L53/025C08L51/003C08L23/06C08K13/06C08K9/10C08K7/24C08L23/00C08K3/34C08K5/20C08K3/30C08L21/00C08K3/26
Inventor 郜天宇陈燕东龙晓琴
Owner SHENZHEN NANOTECH PORT
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