Abstract
Thermoplastic polyurethane (TPU) has broad applications as lightweight materials due to its multiple advantages and unique properties. Nevertheless, toxicity emission under fire conditions remains a major concern, particularly in building fire scenarios. To circumvent the problem, it is imperative that an effective flame retardant is sought to suppress the flame and release of combustion/smoke products whilst maintaining the favorable material properties of TPU. In the current work, a simple method is proposed for the preparation and utilization of cetyltrimethyl ammonium bromide (CTAB) and tetrabutyl phosphine chloride (TBPC) modified Ti 3 C 2 (MXene) ultra-thin nanosheets. During the cone calorimeter tests, significant reduction in peak heat release rate (51.2% and 52.2%), peak smoke production rate (57.1% and 57.4%), peak CO production (39.4% and 41.6%) and peak CO 2 production (49.7% and 51.7%) were recorded by the mere introduction of 2 wt.% CTAB-Ti 3 C 2 and TBPC-Ti 3 C 2 to TPU. These superior fire safety properties resulting from the significant reduction of the fire, smoke and toxicity hazards are attributed to the excellent dispersion, catalytic and barrier effect of Ti 3 C 2 ultra-thin nanosheets in TPU. Future applications of exfoliated MXene nanosheets as flame retardant appear to be very promising.
Original language | English |
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Pages (from-to) | 110-119 |
Number of pages | 10 |
Journal | Journal of Hazardous Materials |
Volume | 374 |
DOIs | |
Publication status | Published - 15 Jul 2019 |
Keywords
- Flame retardant
- Interface decoration
- MXene
- Polymer nanocomposites
- Smoke suppression
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Waste Management and Disposal
- Pollution
- Health, Toxicology and Mutagenesis