“…As a result, PLA has been extensively used in packaging, electric and electronic, transport fields, and so forth. However, inherent high flammability significantly impedes its widespread applications in industries ( Kong et al., 2000 ). Therefore, great attempts have been made to develop fire-retardant PLA materials ( Jing et al., 2018a ; Liu et al., 2018 ; Jing et al., 2018b ; Zhang et al., 2021 ; Chen et al., 2017a ; Wen et al., 2020 ; Gao et al., 2020 ).…”