TY - JOUR
T1 - Synthesis of vanillin-based porphyrin for remarkably enhancing the toughness, UV-resistance and self-extinguishing properties of polylactic acid
AU - Yang, Wenjie
AU - Zhou, Qiankun
AU - Pan, Weihao
AU - Zhu, San E.
AU - Wei, Chunxiang
AU - Lu, Hongdian
AU - Yang, Wei
AU - Yuen, Anthony Chun Yin
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/8/1
Y1 - 2023/8/1
N2 - To achieve high-performance polylactic acid (PLA) composites, the exploitation of multifunctional biomass additives derived from renewable resources are highly demanded. Herein, a vanillin-based porphyrin (VPR) was designed and synthesized to impart PLA with enhanced mechanical, anti-UV, and flame retardant properties. Multiple intermolecular interactions between VPR and PLA enabled significant toughening of the PLA/VPR biocomposites compared to PLA itself. The elongation at break and impact strength for PLA/3VPR were improved by 88.2 % and 104.2 %, respectively, without influence on their tensile strength. Furthermore, the PLA/VPR biocomposites exhibited improved anti-UV performance with only 1.5 % and 8.6 % decrease of the strength and elongation at break respectively after UV aging. More importantly, incorporation of only 3 wt% VPR loading within the PLA/3VPR composite allowed for excellent self-extinguishing with a UL-94 V-0 level, greatly improving the versatility of PLA composites. We envision that such bio-based PLA/VPR materials with multifunctional features will extensively broaden the usable range of PLA composites.
AB - To achieve high-performance polylactic acid (PLA) composites, the exploitation of multifunctional biomass additives derived from renewable resources are highly demanded. Herein, a vanillin-based porphyrin (VPR) was designed and synthesized to impart PLA with enhanced mechanical, anti-UV, and flame retardant properties. Multiple intermolecular interactions between VPR and PLA enabled significant toughening of the PLA/VPR biocomposites compared to PLA itself. The elongation at break and impact strength for PLA/3VPR were improved by 88.2 % and 104.2 %, respectively, without influence on their tensile strength. Furthermore, the PLA/VPR biocomposites exhibited improved anti-UV performance with only 1.5 % and 8.6 % decrease of the strength and elongation at break respectively after UV aging. More importantly, incorporation of only 3 wt% VPR loading within the PLA/3VPR composite allowed for excellent self-extinguishing with a UL-94 V-0 level, greatly improving the versatility of PLA composites. We envision that such bio-based PLA/VPR materials with multifunctional features will extensively broaden the usable range of PLA composites.
KW - Polylactic acid
KW - Porphyrin
KW - Self-extinguishing
KW - Toughness
KW - UV-resistance
KW - Vanillin
UR - http://www.scopus.com/inward/record.url?scp=85161325674&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2023.143935
DO - 10.1016/j.cej.2023.143935
M3 - Journal article
AN - SCOPUS:85161325674
SN - 1385-8947
VL - 469
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 143935
ER -