Abstract
This article is a short review of the circular material economy and recycling in the additive manufacturing (AM) of polymers. In the recent years, there has been a surge regarding the production of numerous products through AM of various polymers. AM can provide an opportunity for a better manufacturing solution to facilitate productivity and sustainability in the circular economy. AM with a circular economy approach can provide adequate incentives for the recycling and reuse of polymers. It is therefore crucial to analyse the possibilities of recycling and reuse of polymers in AM. Some ongoing research has attempted to remanufacture polymers from recycled materials. This is necessary because polymer waste is a critical threat to the environment making an effective end-of-life treatment imperative. This review aims to provide a holistic view of recycling and reuse of AM materials. Studies investigating remanufactured feedstock materials and polymers as well as composites have been reviewed. The findings point to the fact that there are significant opportunities for recyclable polymers to be used in the development of AM products.
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