Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 150, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2021.106600
Keywords
Polymer-matrix composites (PMCs); Hybrid; Interface/interphase; Flame/fire retardancy
Funding
- National Natural Science Foundation of China [51803031]
- Natural Science Foundation of Fujian Province [2019 J01247]
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The study aimed to reduce the generation of smoke and toxic gases from polymeric materials burning by incorporating a Ti3C2Tx/nano-copper smoke suppressant into TPU nanocomposites. This led to enhanced high-temperature stability and significantly decreased smoke and toxic gas production from TPU.
A large number of toxic fumes evolved from polymeric materials are a great threat to human evacuation. The aim of this work is to dramatically reduce the generation of smoke and toxic gaseous products upon polymers burning. A highly efficient titanium carbide/nano-copper (Ti3C2Tx/Nano-Cu) hybrid smoke suppressant was synthesized by interficial adhesion and then incorporated into thermoplastic polyurethane (TPU) to fabricate TPU nanocomposites. The Ti3C2Tx/Nano-Cu hybrid was homogeneously dispersed in the TPU matrix and showed a strong interfacial interaction with the TPU host. Introducing the Ti3C2Tx/Nano-Cu hybrid into TPU led to enhanced high-temperature stability. Furthermore, the smoke production rate, CO production rate and total CO yield of the TPU nanocomposite containing 2 wt% Ti3C2Tx/Nano-Cu hybrid decreased by 66.7%, 51.8% and 52.9%, respectively, compared with those of pure TPU. The reduced fire hazards of the TPU were due to the physical barrier, the catalytic charring and the chemical conversion of Ti3C2Tx/Nano-Cu hybrid.
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