Lactide production from polymer waste

Anzhelika Posvyashchennaya, Tatiana Volgina, Viktor Novikov, Alexey Zinovyev

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Выдержка

The method of thermal depolymerization of polylactide wastes and products from it has been studied. At a temperature of 200-250 °C and a pressure of 5-10 mbar the maximum yield of crude lactide and pure lactide is 40% and 5.5% by weight accordingly. The addition of catalysts (Zn, ZnO, SnO, C16H30O4Sn, Sb2O3) in an amount from 0.5 to 2.0% by weight makes it possible to intensify the process and increase the monomer yield by 3-10 times. The maximum amount of lactide (∼60 wt%) is achieved by using tin octoate (1.5 wt%) as the catalyst. The findings product is a mixture that consist of D-, L-lactide (∼80 wt%) and m-lactide (∼4 wt%) isomers, lactic acid (∼2 wt%), oligomer of lactic acid (∼14 wt%), water (<1 wt%), and has a melting point 92-96 °C.

Язык оригиналаАнглийский
Название основной публикацииHigh Technology
Подзаголовок основной публикацииResearch and Applications 2017
РедакторыGeorgii E. Osokin, Ekaterina A. Kulinich
ИздательTrans Tech Publications Ltd
Страницы17-22
Число страниц6
ISBN (печатное издание)9783035712810
DOI
СостояниеОпубликовано - 1 янв 2018
Событие6th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2017 - Tomsk, Российская Федерация
Продолжительность: 27 ноя 201729 ноя 2017

Серия публикаций

НазваниеKey Engineering Materials
Том769 KEM
ISSN (печатное издание)1013-9826

Конференция

Конференция6th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2017
СтранаРоссийская Федерация
ГородTomsk
Период27.11.1729.11.17

Отпечаток

Lactic acid
Polymers
Depolymerization
Catalysts
Oligomers
Isomers
Tin
Melting point
Monomers
Lactic Acid
Water
Temperature
dilactide
Hot Temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Цитировать

Posvyashchennaya, A., Volgina, T., Novikov, V., & Zinovyev, A. (2018). Lactide production from polymer waste. В G. E. Osokin, & E. A. Kulinich (Ред.), High Technology: Research and Applications 2017 (стр. 17-22). (Key Engineering Materials; Том 769 KEM). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.769.17

Lactide production from polymer waste. / Posvyashchennaya, Anzhelika; Volgina, Tatiana; Novikov, Viktor; Zinovyev, Alexey.

High Technology: Research and Applications 2017. ред. / Georgii E. Osokin; Ekaterina A. Kulinich. Trans Tech Publications Ltd, 2018. стр. 17-22 (Key Engineering Materials; Том 769 KEM).

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Posvyashchennaya, A, Volgina, T, Novikov, V & Zinovyev, A 2018, Lactide production from polymer waste. в GE Osokin & EA Kulinich (ред.), High Technology: Research and Applications 2017. Key Engineering Materials, том. 769 KEM, Trans Tech Publications Ltd, стр. 17-22, 6th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2017, Tomsk, Российская Федерация, 27.11.17. https://doi.org/10.4028/www.scientific.net/KEM.769.17
Posvyashchennaya A, Volgina T, Novikov V, Zinovyev A. Lactide production from polymer waste. В Osokin GE, Kulinich EA, редакторы, High Technology: Research and Applications 2017. Trans Tech Publications Ltd. 2018. стр. 17-22. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.769.17
Posvyashchennaya, Anzhelika ; Volgina, Tatiana ; Novikov, Viktor ; Zinovyev, Alexey. / Lactide production from polymer waste. High Technology: Research and Applications 2017. редактор / Georgii E. Osokin ; Ekaterina A. Kulinich. Trans Tech Publications Ltd, 2018. стр. 17-22 (Key Engineering Materials).
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