CC BY-NC 3.0 UnportedZhao, PengchengLiu, ZhiqiWang, XueyiPan, Ye-TangKuehnert, InesGehde, MichaelWang, De-YiLeuteritz, Andreas2023-04-272023-04-272018https://oa.tib.eu/renate/handle/123456789/12121http://dx.doi.org/10.34657/11155In this study, a novel bio-based flame retardant material consisting of modified vanillin and poly(lactic acid) (PLA) was developed by incorporation of newly discovered additive, bis(5-formyl-2-methoxyphenyl) phenylphosphonate (VP), into the PLA matrix. The chemical structure of VP was confirmed by 1 H-, 13 C- and 31 P NMR and FTIR. The flame retardancy, thermal behavior as well as the mechanical properties of PLA/VP composites were evaluated. With 5 wt% of VP, the LOI of PLA increased from 21.4 to 25.8 and passed the UL-94 V-0 classification. Additionally, the elongation at break was improved from 3% to 11% without sacrificing tensile strength. In an effort to understand the mechanisms, TGA-FTIR, TGA and SEM were performed. This paper suggests a new possibility to prepare polymeric composites with enhanced flame retardancy from sustainable resources.enghttps://creativecommons.org/licenses/by-nc/3.0540Mechanical propertiesTensile strengthBio-basedElongation at breakFlame retardancyPoly lactic acidPolylactic acidsPolymeric compositesSustainable resourcesThermal behaviorsLactic acidArticle