Current developments in chemical recycling of post-consumer polyethylene terephthalate wastes for new materials production: A review

TL;DR: In this paper , an optimization parameter of chemical recycling of PET waste without utilizing any solvent as a reaction medium by changing a number of variables, such as catalyst types and the molar ratio of EG: PET, catalyst ratio and also recycled catalyst and reagent.

TL;DR: Wang et al. as mentioned in this paper used a special solvent (a mixture of C6H5OH and C2H2Cl4 with a 1:1 vol ratio) to dissolve wPET, then introduced polymethyl methacrylate (PMMA) and aluminum dihydrogen phosphate (AHP) to react and generate new chemical bonds in 3DMSM.

TL;DR: In this article , the authors investigated how the catalyst (sodium borohydride) and microwave pre-treatment affect the total conversion and the char yield of waste polyethylene terephthalate (wPET).

TL;DR: Advances in technologies and systems for the collection, sorting and reprocessing of recyclable plastics are creating new opportunities for recycling, and with the combined actions of the public, industry and governments it may be possible to divert the majority of plastic waste from landfills to recycling over the next decades.

TL;DR: This review presents a comprehensive description of the current pathways for recycling of polymers, via both mechanical and chemical recycling, and discusses the main challenges and some potential remedies to these recycling strategies, thus providing an academic angle as well as an applied one.

TL;DR: Although primary and secondary recycling schemes are well established and widely applied, it is concluded that many of the PSW tertiary and quaternary treatment schemes appear to be robust and worthy of additional investigation.

TL;DR: The effect of recycled and waste plastic on bulk density, air content, workability, compressive strength, splitting tensile strength, modulus of elasticity, impact resistance, permeability, and abrasion resistance is discussed in this paper.