Metallurgical Waste

Baláž, Matěj

doi:10.1007/978-3-030-75224-8_8

Cited by 1 publication

(1 citation statement)

References 116 publications

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“…The midchain of the polymer is typically where the highest force is located and where chain scission occurs [12] . Mechanical force can be applied in bulk materials through techniques such as extension, [13] compression, [14] swelling, [15] and ball milling [10a] . Among these, ball milling is a convenient and powerful technique to apply force to polymers; during the milling process, the collision and shear forces between balls or between balls and vessel walls are transmitted to the polymer chains, which can induce chemical transformation [16] .…”

Section: Techniquesmentioning

confidence: 99%

Mechanochemical Degradation and Recycling of Synthetic Polymers

2023

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The accumulation of plastic waste, due to lack of recycling, has led to serious environmental pollution. Although mechanical recycling can alleviate this issue, it inevitably reduces the molecular weight and weakens the mechanical properties of materials and is not suitable for mixed materials. Chemical recycling, on the other hand, breaks the polymer into monomers or small-molecule constituents, allowing for the preparation of materials of quality comparable to that of the virgin polymers and can be applied to mixed materials. Mechanochemical degradation and recycling leverages the advantages of mechanical techniques, such as scalability and efficient energy use, to achieve chemical recycling. We summarize recent progress in mechanochemical degradation and recycling of synthetic polymers, including both commercial polymers and those designed for more efficient mechanochemical degradation. We also point out the limitations of mechanochemical degradation and present our perspectives on how the challenges can be mitigated for a circular polymer economy.

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Section: Techniquesmentioning

confidence: 99%