Conductive plastic base particle and preparation method and application thereof

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, ...

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.