Progress in preparation of polypropylene wax by polypropylene thermal cracking
The research on the production of polypropylene wax through thermal cracking of polypropylene is presented in this article,which also examines the effects of various cracking reaction devices,catalysts,raw materi-als,reaction temperature,and reaction time on the final product's characteristics.In order to reduce the likelihood of side reactions after the target molecular weight was reached,it was determined that the ideal cracking tempera-ture is between 340 and 370℃,the ideal cracking time is between 30 and 150 minutes,and catalysts like Fe2O3 or MgO can be added to speed up the cracking reaction.The cracking process and products were found to be largely unaffected by the raw material properties.A consistent temperature and enough material mixing should be guaranteed by the cracking reactors chosen,and further improved decontamination through solvent extraction or evaporation and condensation can significantly enhance product quality.
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