CWRU Research Launches New Plastics Recycling Technology

SEATTLE (Scrap Monster): The recent technology developed by the Cleveland-based Case Western Reserve University (CWRU) facilitates recycling of end-of-life thermoset plastics in cars, planes, turbines etc. into resins that can be reused. The technology aims to boost the types of plastics that are recyclable. The research was led by Ica Manas-Zloczower, professor in Department of Macromolecular Science and Engineering at the University.

The thermoset kind of plastic is rigid due to the presence of cross-link structure. Due to their chemical resistance and mechanical properties, they are widely used in several applications including aerospace applications. The research unveils a unique technique by which the cross-linked structures are converted into dynamic cross-linked ones. This allows reshaping and reprocessing by using conventional methods such as hot-press molding or injection molding.

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The proposed ‘vitrimerization’ process transforms the thermoset plastic into vitrimer polymers, which can be reprocessed.

The research team will indulge in discussions with industrial partners in producing reusable powder resin. The resins currently made are free of additives. The industrial application will need to add additives as reinforcement.

The research was funded by the National Science Foundation.