BODIPY coated on MXene nanosheets for improving mechanical and fire safety properties of ABS resin. (15th October 2021)

• Record Type: Journal Article
• Authors: Zhu, San-E; Wang, Fen-Dou; Liu, Jun-Jie; Wang, Li-Li; Wang, Cheng; Yuen, Anthony Chun Yin; Chen, Timothy Bo Yuan; Kabir, Imrana I.; Yeoh, Guan Heng; Lu, Hong-Dian; Yang, Wei
• Is Part Of: Composites. Number 223(2021)
• Publication Date: 2021-10-15
• Subjects: MXene -- BODIPY -- ABS resin -- Mechanical properties -- Flame retardant; Composite materials -- Periodicals; Materials science -- Periodicals; Composite materials; Periodicals; Electronic journals; 620.118
• DOI: 10.1016/j.compositesb.2021.109130
• Languages: English
• ISSNs: 1359-8368

Abstract

Abstract: Acrylonitrile-butadiene-styrene (ABS) resin is a commonly used engineering thermoplastic. Nevertheless, the fire toxicity hazards (HCN, NO x, NH3 and CO) generated from the combustion of ABS remains a major concern, especially in building fire scenarios. To address this issue, boron dipyrromethene (BODIPY) modified MXene (Ti3 C2 Tx ) nanosheets were prepared and utilized as a flame retardant for ABS. The loading of 0.5 wt% BODIPY-MXene resulted in the uniform dispersion in ABS. Accordingly, the tensile strength, Young's modulus and elongation at break of ABS/BODIPY-MXene0.5 were improved by 27.8%, 18.6% and 17.9% respectively compared to neat ABS, suggesting the enhanced mechanical properties. The limiting oxygen index (LOI) value was increased from 19.5% for neat ABS to 21.5% and 23.5% for ABS/BODIPY-MXene0.5 and ABS/BODIPY-MXene2.0 benefitted from the rapid carbonization. The cone calorimeter coupled with FTIR analysis showed that the reductions in peak heat release rate (−24.5%), peak smoke production rate (−18.4%), peak concentration of HCN (−33.5%), NO (−22.0%), N2 O (−46.6%), NH3 (−76.0%) and CO (−28.8%) were achieved by incorporating 0.5 wt% BODIPY-MXene to ABS in comparison with pure ABS. The improved fire safety properties were primarily attributed to the excellent barrier, free radical capture, and catalytic carbonization effect of BODIPY-MXene nanosheets within ABS matrix. Graphical abstract: Image 1 Highlights: BODIPY-MXene nanosheets were fabricated based on electrostatic interaction. ABS/BODIPY-MXene nanocomposites were prepared via solution blending. ABS/BODIPY-MXene exhibited improved mechanical performance. ABS/BODIPY-MXene showed enhanced fire safety properties.