The selective recycling of mixed plastic waste of polylactic acid and polyethylene terephthalate by control of process conditions

被引：126
作者：
Sanchez, Arnau Carne [1 ]
Collinson, Simon R. [1 ]
机构：
[1] Cranfield Univ, Ctr Energy & Resource Technol, Sch Appl Sci, Cranfield MK43 0AL, Beds, England
来源：
EUROPEAN POLYMER JOURNAL | 2011年 / 47卷 / 10期
关键词：
Polyethylene terephthalate; Polylactic acid; Recycling; Catalyst; Glycolysis; Mixed plastic waste; L-LACTIC ACID; POLY(L-LACTIC ACID); THERMAL-DEGRADATION; MOLECULAR-WEIGHT; DEPOLYMERIZATION; POLYMERS; PET; METHANOLYSIS; GLYCOLYSIS; KINETICS;
D O I：
10.1016/j.eurpolymj.2011.07.013
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The glycolysis of postconsumer polyethylene terephthalate (PET) waste was evaluated with catalysts of zinc acetate, zinc stearate and zinc sulfate, showing that zinc acetate was the most soluble and effective. The chemical recycling by solvolysis of polylactic acid (PLA) and PET waste in either methanol or ethanol was investigated. Zinc acetate as a catalyst was found to be necessary to yield an effective depolymerization of waste PLA giving lactate esters, while with the same reaction conditions PET remains as an unconverted solid. This provides a strategy to selectively recycle mixed plastic waste by converting one plastic to a liquid and recovering the unreacted solid plastic by filtration. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1970 / 1976
页数：7
相关论文
共 50 条
  • [1] Multiblock Copolymers for Recycling Polyethylene-Poly(ethylene terephthalate) Mixed Waste
    Nomura, Keiichiro
    Peng, Xiayu
    Kim, Hanim
    Jin, Kailong
    Kim, Hee Joong
    Bratton, Abigail F.
    Bond, Christopher R.
    Broman, Amelia E.
    Miller, Kevin M.
    Ellison, Christopher J.
    ACS APPLIED MATERIALS & INTERFACES, 2020, 12 (08) : 9726 - 9735
  • [2] Recycling and depolymerization of waste polyethylene terephthalate bottles by alcohol alkali hydrolysis
    Sun Cong-hao
    Chen Xiang-ping
    Zhuo Qiang
    Zhou Tao
    JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2018, 25 (03) : 543 - 549
  • [3] POLYETHYLENE TEREPHTHALATE WASTE RECYCLING TECHNOLOGY TO PRODUCE TEREPHTHALIC ACID AMIDE
    Vesnin, R. L.
    Alalykin, A. A.
    Vokhmyanin, M. A.
    IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA, 2020, 63 (02): : 99 - 104
  • [4] Progress in recycling and reutilization of waste polyethylene terephthalate
    Chen, Ruixin
    Deng, Sai
    Cui, Tongyan
    Duan, Shiyu
    Jia, Qingxiu
    Zhang, Liqun
    PROGRESS IN RUBBER PLASTICS AND RECYCLING TECHNOLOGY, 2024, 40 (01) : 77 - 97
  • [5] Efficient chemical recycling of waste polyethylene terephthalate
    Khan, Ajmir
    Naveed, Muhammad
    Aayanifard, Zahra
    Rabnawaz, Muhammad
    RESOURCES CONSERVATION AND RECYCLING, 2022, 187
  • [6] Biocatalytic recycling of polyethylene terephthalate plastic
    Zimmermann, Wolfgang
    PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2020, 378 (2176):
  • [7] Boosting the selective catalytic pyrolysis of plastic waste polylactic acid to monomer
    Su, Tianyue
    Lu, Guo-Ping
    Sun, Kangkang
    Wu, Pengyu
    Cai, Chun
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2023, 11 (06):
  • [8] Co-pyrolysis study of polylactic acid and polyethylene terephthalate plastic wastes
    Tai, Hua-Shan
    Yeh, Jui-Lan
    Journal of Solid Waste Technology and Management, 2015, 41 (02): : 189 - 202
  • [9] Upcycling of waste polyethylene terephthalate to dimethyl terephthalate over solid acids under mild conditions
    Ye, Boyong
    Zhou, Ruru
    Zhong, Zixin
    Wang, Songlin
    Wang, Han
    Hou, Zhaoyin
    GREEN CHEMISTRY, 2023, 25 (18) : 7243 - 7252
  • [10] Recent advances in biocatalysts engineering for polyethylene terephthalate plastic waste green recycling
    Samak, Nadia A.
    Jia, Yunpu
    Sharshar, Moustafa M.
    Mu, Tingzhen
    Yang, Maohua
    Peh, Sumit
    Xing, Jianmin
    ENVIRONMENT INTERNATIONAL, 2020, 145 (145)
12345