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Conductive plastic base particle and preparation method and application thereof

A technology of conductive plastic and masterbatch, applied in the field of conductive materials, can solve the problems of high manufacturing cost of packaging materials for electronic products, large amount of conductive plastic masterbatch, and large damage to the physical and mechanical properties of the matrix. Solubility and physico-mechanical properties, excellent electrical conductivity and dispersion properties, providing market-competitive effects

Active Publication Date: 2012-11-07
DONGGUAN DECHENG PLASTIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the conductive carbon black filler is not easy to add (generally below 35%), and it is unevenly dispersed in the matrix, which does not reflect the excellent electrical conductivity of the conductive carbon black, and more importantly, it is less likely to damage the physical and mechanical properties of the matrix. Large, and pollute the production environment
However, in the process of making packaging materials for electronic products, due to the shortcomings of the aforementioned existing conductive plastic master batches, the addition of the conductive plastic master batches is relatively large, generally more than 50%
As a result, the production cost of packaging materials for electronic products has been high, which can no longer meet the needs of increasingly fierce market competition.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 36% by weight of conductive carbon black, 2% by weight of N,N'-ethylene bisstearamide and 62% by weight of high-impact polystyrene and styrene-butadiene-styrene three-embedded Segment copolymers are put into an internal mixer for internal mixing and molding, and then extruded and granulated with a single screw to obtain conductive plastic masterbatches. Special attention should be paid to the order of putting the components into the internal mixer: first put in conductive carbon black, then put in N,N'-ethylene bisstearamide, and finally put in high impact polystyrene and styrene-butadiene Diene-styrene triblock copolymer.

[0027] The resistance value of this conductive masterbatch is between 70-80Ω, and a kind of packaging material for electronic products can be made by using 35% by weight of this kind of conductive plastic masterbatch and 65% by weight of high-impact polystyrene. After testing , the surface resistivity of this electronic product packaging material i...

Embodiment 2

[0029] 50% by weight of conductive carbon black, 5% by weight of N, N'-ethylene bisstearamide and 45% by weight of high-impact polystyrene and styrene-butadiene-styrene three-embedded Segment copolymers are put into an internal mixer for internal mixing and molding, and then extruded and granulated with a single screw to obtain conductive plastic masterbatches. Special attention should be paid to the order of putting the components into the internal mixer: first put in conductive carbon black, then put in N,N'-ethylene bisstearamide, and finally put in high impact polystyrene and styrene-butadiene Diene-styrene triblock copolymer.

[0030] The resistance value of this conductive masterbatch is between 10-20Ω, and a kind of packaging material for electronic products can be prepared by using 15% by weight of this kind of conductive plastic masterbatch and 85% by weight of high-impact polystyrene. After testing , the surface resistivity of this electronic product packaging mater...

Embodiment 3

[0032] 36% by weight of conductive carbon black, 1% by weight of N,N'-ethylene bisstearamide, 59% by weight of high-impact polystyrene and styrene-butadiene-styrene three-embedded Segment copolymer, and the zinc stearate of 1.5% by weight, the titanate coupling agent of 1% by weight, the white oil of 1% by weight, the antioxidant of 0.5% by weight, drop in the internal mixer Carry out internal mixing and molding, and then extrude and granulate with a single screw to obtain conductive plastic masterbatches. Special attention should be paid to the sequence of putting each component into the internal mixer: first put in conductive carbon black, then put in N,N'-ethylene bisstearamide, then put in zinc stearate and titanate coupling agent , white oil and antioxidant, and finally put into high-impact polystyrene and styrene-butadiene-styrene triblock copolymer.

[0033] The resistance value of this conductive masterbatch is between 60-70Ω, and the electronic product packaging mate...

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Abstract

The invention discloses a conductive plastic base particle and a preparation method and application thereof. The conductive plastic base particle comprises the following components by weight percent: a, 36%-50% of conductive carbon black, b, 1%-5% of N, N'-ethylene bis stearamide, and c, balance of triblock copolymer of high-impact resistance polystyrene and styrene-butadiene-styrene. In the preparation method, the N, N'-ethylene bis stearamide as a dispersing agent is added in the conductive carbon black so that the conductive carbon black is uniformly dispersed, and meanwhile, an internal mixer is adopted to carry out internal-mixing formation to improve the compatibility of the conductive carbon black in a carrier and physical and mechanical properties, and then the addition amount of the conductive carbon black is greatly improved so that the conductive plastic base particle obtains optimum conductivity and dispersion. Therefore, when applied to making materials for packaging electronic products, the addition amount of the conductive plastic base particle can be reduced to 15%-45%, and the conductive plastic base particle can also achieve the requirement of the standard resistivity all the same.

Description

technical field [0001] The invention relates to the technology in the field of conductive materials, in particular to a conductive plastic masterbatch and its preparation method and application. Background technique [0002] With the development of science and technology, polymer materials, especially plastic products, are more and more deeply involved in people's daily life. In many aspects, the harm caused by the insulation of plastic products is becoming more and more serious. Electrostatic properties and electrical conductivity are also increasingly valued by people, but the current production of conductive plastic masterbatches generally directly adds conductive carbon black fillers or antistatic agents to plastics by compound blending. Its disadvantages are: the conductive carbon black filler is not easy to add (generally below 35%), and it is unevenly dispersed in the matrix, which does not reflect the excellent electrical conductivity of the conductive carbon black, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L25/06C08L53/02C08K13/02C08K3/04C08K5/20H01B1/24B29B9/06
Inventor 王玉庭
Owner DONGGUAN DECHENG PLASTIC TECH
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