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Preparation method of conductive polystyrene particles

A technology of polystyrene particles and polystyrene boards, which is applied in the field of preparation of conductive polystyrene particles, can solve problems such as fire, explosion, and difficult production and processing, and achieve the effects of strong practicability, simple process, and improved quality

Active Publication Date: 2017-01-11
宁波朗昇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, it is also because of this nature that it has brought a lot of unnecessary troubles during its production, transportation and use, because polystyrene is a non-conductive material, so it is also a material that is prone to static electricity. Static electricity is generated in the process of production, transportation and use, which will make polystyrene products easy to absorb dust, difficult to manufacture and process, and may cause accidents such as fire and explosion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation method of the conductive polyphenylene particles of the present embodiment is carried out according to the following steps:

[0017] (1) Grinding the recycled waste polystyrene board, removing impurities, and sieving to obtain particles with uniform particle size;

[0018] (2) According to the percentage by weight: 5% carbon black, 1% surfactant and the rest of the mixed solvent to prepare the spray liquid;

[0019] (3) Put the sieved polyphenylene particles in the fluidized bed equipment, pass compressed air into the bottom, control the compressed air flow rate, keep the polyphenylene particles in a suspended state, and spray the above spray liquid intermittently on the upper part of the equipment, each spraying The time is 2 seconds, and the interval time is 5 minutes, until all the polyphenylene particles turn black, stop the operation, and obtain the conductive polyphenylene particles.

[0020] Wherein, the mixed solvent is prepared from 10% tetrach...

Embodiment 2

[0025] The preparation method of the conductive polyphenylene particles of the present embodiment is carried out according to the following steps:

[0026] (1) Grinding the recycled waste polystyrene board, removing impurities, and sieving to obtain particles with uniform particle size;

[0027] (2) According to the percentage by weight: 10% carbon black, 2% surfactant and the remaining mixed solvent to prepare spray liquid;

[0028] (3) Put the sieved polyphenylene particles in the fluidized bed equipment, pass compressed air into the bottom, control the compressed air flow rate, keep the polyphenylene particles in a suspended state, and spray the above spray liquid intermittently on the upper part of the equipment, each spraying The time is 1 second, and the interval time is 10 minutes, until all the polyphenylene particles turn black, stop the operation, and obtain conductive polyphenylene particles.

[0029] Wherein, the mixed solvent is prepared from 20% tetrachlorethyle...

Embodiment 3

[0034] The preparation method of the conductive polyphenylene particles of the present embodiment is carried out according to the following steps:

[0035] (1) Grinding the recycled waste polystyrene board, removing impurities, and sieving to obtain particles with uniform particle size;

[0036] (2) According to the percentage by weight: 5% carbon black, 1% surfactant and the rest of the mixed solvent to prepare the spray liquid;

[0037] (3) Put the sieved polyphenylene particles in the fluidized bed equipment, pass compressed air into the bottom, control the compressed air flow rate, keep the polyphenylene particles in a suspended state, and spray the above spray liquid intermittently on the upper part of the equipment, each spraying The time is 2 seconds, and the interval time is 5 minutes, until all the polyphenylene particles turn black, stop the operation, and obtain the conductive polyphenylene particles.

[0038] Wherein, the mixed solvent is prepared from 10% tetrach...

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Abstract

The invention belongs to the technique field of polystyrene preparation, and particularly relates to a preparation method of conductive polystyrene particles. The preparation method includes that polystyrene particles subjected to screening are placed in a fluidized bed apparatus with the bottom fed with compressed air, flow of the compressed air is control to enable the polystyrene particles to be in the suspension state, spray solutions composed by conductive carbon black and mixed solvent are sprayed intermittently to the upper portion of the apparatus, spraying time is 1-2 seconds each time, the interval time is 5-10 minutes, and operation is not stopped until the polystyrene particles are fully turned into black to obtain the conductive polystyrene particles, and the mixed solvent is prepared from, by weight, 10-30% of tetrachloroethylene and 70-90% of ethyl alcohol. With the method, the abandoned polystyrene particles are turned into the conductive polystyrene particles, waste is made profitable, grade of the abandoned polystyrene particles is improved, and the method is simple in technology and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of polystyrene preparation, and in particular relates to a preparation method of conductive polystyrene particles. Background technique [0002] With the progress of society and the continuous development of the polystyrene industry, more and more polystyrene products are used, and the scope of use is wider and wider. Since most polystyrene products follow the principle of being disposable, the use of At the same time, a large amount of waste is produced, forming a typical white pollutant and causing serious harm to the environment. How to solve this hazard and how to reuse these discarded resources has become a hot topic in various countries today. [0003] According to the properties of polystyrene, it has high resistivity, so it is a good insulating and non-conductive material, which is also an excellent characteristic of polystyrene. But at the same time, it is also because of this nature that it has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08K3/04
CPCC08K3/04C08K2201/001C08L25/06
Inventor 范兆荣刘运学王晴谷亚新徐长伟
Owner 宁波朗昇新材料科技有限公司