Efficient chemical recycling of waste fiber-reinforced plastics: use of reduced amounts of dimethylaminopyridine and activated charcoal for the purification of recovered monomer
We have achieved major improvements in the efficient chemical recycling of waste fiber-reinforced plastics (FRPs). The effects of reduction in the amounts of dimethylaminopyridine (DMAP) used for depolymerization were examined. The treatment of waste FRP in the presence of 1 or 2 wt% DMAP resulted i...
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| Veröffentlicht in: | Journal of material cycles and waste management 2010-06, Vol.12 (2), p.93-97 |
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| container_title | Journal of material cycles and waste management |
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| creator | Kamimura, Akio Akinari, Yugo Watanabe, Takeru Yamada, Kazuo Tomonaga, Fumiaki |
| description | We have achieved major improvements in the efficient chemical recycling of waste fiber-reinforced plastics (FRPs). The effects of reduction in the amounts of dimethylaminopyridine (DMAP) used for depolymerization were examined. The treatment of waste FRP in the presence of 1 or 2 wt% DMAP resulted in the successful recovery of monomeric materials that could be employed in the polymerization process to produce recycled plastic. The separation of linker units from glass fiber, however, was unsuccessful. The purity of the recovered monomeric material, when treated with activated charcoal, was improved to about 70%. This resulted in effective decoloration of the recovered monomer. Finally, the purified material, after undergoing repolymerization, provided high-quality recycled plastic comparable to new plastics produced from new monomers. |
| doi_str_mv | 10.1007/s10163-010-0276-y |
| format | Article |
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The effects of reduction in the amounts of dimethylaminopyridine (DMAP) used for depolymerization were examined. The treatment of waste FRP in the presence of 1 or 2 wt% DMAP resulted in the successful recovery of monomeric materials that could be employed in the polymerization process to produce recycled plastic. The separation of linker units from glass fiber, however, was unsuccessful. The purity of the recovered monomeric material, when treated with activated charcoal, was improved to about 70%. This resulted in effective decoloration of the recovered monomer. 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| source | Springer Nature - Complete Springer Journals |
| subjects | Activated carbon Activated charcoal Charcoal Chemical recycling Civil Engineering Decomposition Engineering Environmental Management NMR Nuclear magnetic resonance Plastics Polyesters Polymerization Raw materials Recycled materials Recycling Resource recovery Solvents Special Feature: Original Article Studies Waste Management/Waste Technology Waste recycling Waste treatment |
| title | Efficient chemical recycling of waste fiber-reinforced plastics: use of reduced amounts of dimethylaminopyridine and activated charcoal for the purification of recovered monomer |
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