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Novel strategy for molybdenum disulfide nanosheets grown on titanate nanotubes for enhancing the flame retardancy and smoke suppression of epoxy resin
Author(s) -
Li Aijiao,
Xu Wenzong,
Wang Guisong,
Wang Xiaoling
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46064
Subject(s) - limiting oxygen index , materials science , molybdenum disulfide , thermogravimetric analysis , chemical engineering , coating , epoxy , thermal stability , char , composite material , smoke , adsorption , organic chemistry , chemistry , pyrolysis , engineering
A novel hybrid consisting of a molybdenum disulfide (MoS 2 ) coating on a titanium dioxide nanotube (TNT) surface (MoS 2 –TNT) was synthesized by a hydrothermal method. The MoS 2 , TNTs, and MoS 2 –TNT hybrid were incorporated into epoxy resin (EP) to study their effects on its thermal performance and flame retardancy. Thermogravimetric analysis results show that the char yield at 700 °C of EP–MoS 2 –TNTs was obviously increased compared with that of the EP–MoS 2 or EP–TNTs; this indicated that MoS 2 –TNTs had a good carbonization effect. The limiting oxygen index, cone calorimetry, and smoke density tests showed that MoS 2 –TNTs effectively improved the flame retardancy and smoke suppression of EP. This was attributed to the physical barrier effect of MoS 2 and the adsorption of TNTs. Moreover, the flame retardancy and smoke suppression of the EP–MoS 2 –TNTs were better than those of the EP–MoS 2 or EP–TNTs alone with the same amount of addition; this indicated that there was a synergistic effect between MoS 2 and TNTs. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46064.