Retreatment of Polymer Wastes by Disintegrator Milling

Global introduction of waste utilization techniques to the polymer market is currently not fully developed but has enormous potential. Before reintegration of used material into a new product, it normally requires grinding, that is shredding, crushing, or milling. In traditional grinders, the genera...

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Autores principales: Kulu, Priit, Goljandin, Dmitri
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Publicado: IntechOpen 2021
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Acceso en línea:https://www.intechopen.com/chapters/78464
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author Kulu, Priit
Goljandin, Dmitri
author_browse Goljandin, Dmitri
Kulu, Priit
author_facet Kulu, Priit
Goljandin, Dmitri
author_sort Kulu, Priit
building IntechOpen
collection Acceso abierto
description Global introduction of waste utilization techniques to the polymer market is currently not fully developed but has enormous potential. Before reintegration of used material into a new product, it normally requires grinding, that is shredding, crushing, or milling. In traditional grinders, the generated stresses in the material to be ground are equal to or less than the strength of the material. If by traditional methods, the stresses generated are compressive + shift, so by milling based on collision are tension + shift. Due to the high stress-material strength ratio at collision, it is possible to crush not only brittle materials but also ductile materials. This process allows easily combining the grinding of composite materials with their separation into individual constituents. In the current study, the mechanical recycling of the following groups of polymer materials was studied: pure brittle and soft polymers (PMMA, HDPE and IER), blends of plastics (ABS+PMMA, PC + ABS), reinforced plastics (PMMA+GFP); elastomers (rubber and tyres), and printed circuit boards (PCB).
doi_str_mv 10.5772/intechopen.99715
first_indexed 2026-10-15T21:39:26Z
format Book Chapter
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spelling intech-784642021-09-21 Retreatment of Polymer Wastes by Disintegrator Milling Priit Kulu Dmitri Goljandin Life Sciences Global introduction of waste utilization techniques to the polymer market is currently not fully developed but has enormous potential. Before reintegration of used material into a new product, it normally requires grinding, that is shredding, crushing, or milling. In traditional grinders, the generated stresses in the material to be ground are equal to or less than the strength of the material. If by traditional methods, the stresses generated are compressive + shift, so by milling based on collision are tension + shift. Due to the high stress-material strength ratio at collision, it is possible to crush not only brittle materials but also ductile materials. This process allows easily combining the grinding of composite materials with their separation into individual constituents. In the current study, the mechanical recycling of the following groups of polymer materials was studied: pure brittle and soft polymers (PMMA, HDPE and IER), blends of plastics (ABS+PMMA, PC + ABS), reinforced plastics (PMMA+GFP); elastomers (rubber and tyres), and printed circuit boards (PCB). IntechOpen 2021-09-21 Chapter, Part Of Book https://www.intechopen.com/chapters/78464 doi:10.5772/intechopen.99715 en ISBN:978-1-83969-680-0 https://creativecommons.org/licenses/by/3.0/ https://www.intechopen.com/books/10855 ; Waste Material Recycling in the Circular Economy - Challenges and Developments
spellingShingle Life Sciences
Kulu, Priit
Goljandin, Dmitri
Retreatment of Polymer Wastes by Disintegrator Milling
title Retreatment of Polymer Wastes by Disintegrator Milling
title_full Retreatment of Polymer Wastes by Disintegrator Milling
title_fullStr Retreatment of Polymer Wastes by Disintegrator Milling
title_full_unstemmed Retreatment of Polymer Wastes by Disintegrator Milling
title_short Retreatment of Polymer Wastes by Disintegrator Milling
title_sort retreatment of polymer wastes by disintegrator milling
topic Life Sciences
url https://www.intechopen.com/chapters/78464
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AT goljandindmitri retreatmentofpolymerwastesbydisintegratormilling