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Construction of polylactic acid-based flame retardant composites by zinc oxide and bamboo carbon

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2024, 34(2), pp.665-675
  • DOI : 10.1007/s42823-023-00663-4
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General
  • Received : September 3, 2023
  • Accepted : January 2, 2024
  • Published : March 28, 2024

Ling Mengyao 1 Yin Ningning 1 Chen Yifan 1 Zhou Zenan 1 Chen Haifeng 1 Dai Chunping 2 Huang Jingda 1 Zhang Wenbiao 1

1College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou
2Faculty of Forestry, University of British Columbia, Vancouver

Accredited

ABSTRACT

Polylactic acid (PLA) is often used in the preparation of environmentally friendly biodegradable polymer plastics, and how to improve the flame retardant performance of polylactic acid has been concerned by experts and scholars. Here, we provide a new idea, using bamboo activated carbon as the main material, and phytic acid, urea and Zn(NO3)2·6(H2O) as modifiers to produce a new type of carbon flame retardant. It has bamboo activated carbon as carbon source; second, it has P, N elements and metal oxides. The two synergistically play a flame retardant role on polylactic acid. The polylactic acid composite showed good thermal stability, from no grade optimization to V-0 in the UL-94 test, and the limiting oxygen index was also increased from 20.1 to 31.2%. The above tests show that bamboo activated carbon loaded with ZnO has a good flame retardant effect on polylactic acid.

Citation status

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