A carbon material prepared by utilizing inorganic carbon to promote the carbonization of polyolefin and its preparation method

Abstract

The invention belongs to the technical field of polymer carbonization, and in particular relates to a carbon material prepared by utilizing inorganic carbon to promote polyolefin carbonization and a preparation method. The preparation method of the invention comprises the following steps: (1) uniformly mixing the polyolefin and the inorganic carbon material to obtain the mixture; (2) heating the mixture to a preset carbonization temperature for carbonization to obtain the carbon material. The present invention prepares functional carbon materials by promoting low-temperature carbonization of polyolefins with inorganic carbon, and the prepared carbon materials do not need to be post-treated, and the use of inorganic carbon catalysts also promotes the crosslinking reaction of polyolefins, effectively improving the carbonization yield, The carbonization temperature is reduced, and at the same time, it has the advantages of low catalyst price, low carbonization temperature, and high carbonization controllability. It has important guiding significance for large-scale treatment of waste polyolefin plastic products.

Description

technical field [0001] The invention belongs to the technical field of polymer carbonization, and in particular relates to a carbon material prepared by utilizing inorganic carbon to promote the carbonization of polyolefin and a preparation method. Background technique [0002] The wide use of plastic products, while facilitating our lives, inevitably produces a large amount of waste plastics. Plastics have good chemical stability and are difficult to degrade under natural conditions, often requiring dozens or even hundreds of years, resulting in serious problems. Environmental issues. Polyolefin plastic products, as the largest category of plastic products, mainly include polyethylene and polypropylene. Polyolefin is mainly composed of carbon and hydrogen, and the content of carbon is as high as 86%. Therefore, the preparation of carbon materials from polyolefins has great potential for industrial application. [0003] In the reported studies, a typical example is Vilas ...

AI Technical Summary

Problems solved by technology

Compared with the traditional carbonization process, this method not only greatly reduces energy loss, but also innovatively solves the problem that polyolefins are difficult to form into carbon without catalysts, and provides a feasible way for large-scale recycling of waste polyolefins in the future. New technology, however, the structure of carbon materials is difficult to control precisely (products often have no regular morphology), and there is still room for improvement in carbonization efficiency

[0007] In summary, the existing technology still lacks a new polyolefin carbonization technology with the characteristics of mild conditions, no metal catalyst, no post-treatment, and high degree of carbonization control.

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