TY - JOUR
T1 - Novel bio-based nanosheets
T2 - Improving the fire safety, electromagnetic shielding and mechanical properties of polylactic acid
AU - Sun, Yaru
AU - Yu, Bin
AU - Liu, Yan
AU - Cheng, Bo
AU - Wang, Jun
AU - Yan, Junbo
AU - Huang, Fenglei
N1 - Publisher Copyright:
© 2024
PY - 2024/4
Y1 - 2024/4
N2 - In this study, a bio-based additive nanosheet (PP-Fe) with multifunctionality was synthesized using self-assembly technology. The multidisciplinary performance of polylactic acid (PLA) composites with addition of PP-Fe was explored, including fire safety, mechanical properties, ultraviolet resistance (UV), electromagnetic interference (EMI) shielding, and flame retardancy. Good dispersion and interfacial compatibility of PP-Fe give its PLA nanocomposites excellent properties. Loading of 20.0 wt% PP-Fe nanosheets on PLA resulted in significant reductions in the maximum heat release rate (72.7 %), total heat release (41.6 %), and total smoke production (64.7 %). More important, the ultraviolet protection factor (UPF) value for the PLA/20PP-Fe composite was 120 %, which is categorized as excellent UV-shielding. In general, traditional flame retardant approaches significantly reduce mechanical performance. Compared to neat PLA, PLA/20PP-Fe exhibited reinforced mechanical properties. The mechanism of the improved multi-performance of the PLA nanocomposite was also determined.
AB - In this study, a bio-based additive nanosheet (PP-Fe) with multifunctionality was synthesized using self-assembly technology. The multidisciplinary performance of polylactic acid (PLA) composites with addition of PP-Fe was explored, including fire safety, mechanical properties, ultraviolet resistance (UV), electromagnetic interference (EMI) shielding, and flame retardancy. Good dispersion and interfacial compatibility of PP-Fe give its PLA nanocomposites excellent properties. Loading of 20.0 wt% PP-Fe nanosheets on PLA resulted in significant reductions in the maximum heat release rate (72.7 %), total heat release (41.6 %), and total smoke production (64.7 %). More important, the ultraviolet protection factor (UPF) value for the PLA/20PP-Fe composite was 120 %, which is categorized as excellent UV-shielding. In general, traditional flame retardant approaches significantly reduce mechanical performance. Compared to neat PLA, PLA/20PP-Fe exhibited reinforced mechanical properties. The mechanism of the improved multi-performance of the PLA nanocomposite was also determined.
KW - A. Multifunctional composites
KW - B. Flame retardancy
KW - B. Mechanical properties
KW - D. Thermal analysis
UR - http://www.scopus.com/inward/record.url?scp=85183981881&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2024.108044
DO - 10.1016/j.compositesa.2024.108044
M3 - Article
AN - SCOPUS:85183981881
SN - 1359-835X
VL - 179
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
M1 - 108044
ER -