Multigram-scale fabrication of organic modified MoS2 nanosheets dispersed in polystyrene with improved thermal stability, fire resistance, and smoke suppression properties

被引:43
作者
Zhou, Keqing [1 ]
Jiang, Saihua [2 ]
Shi, Yongqian [1 ]
Liu, Jiajia [1 ]
Wang, Biao [1 ]
Hu, Yuan [1 ]
Gui, Zhou [1 ]
机构
[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China
[2] S China Univ Technol, Sch Mech & Automot Engn, Guangzhou 510641, Guangdong, Peoples R China
来源
RSC ADVANCES | 2014年 / 4卷 / 76期
关键词
LAYERED DOUBLE HYDROXIDES; MOLYBDENUM-DISULFIDE; FLAME RETARDANTS; SAFETY APPLICATIONS; CARBON NANOTUBES; GRAPHENE; NANOCOMPOSITES; FLAMMABILITY; PERFORMANCE; COMPOSITES;
D O I
10.1039/c4ra02347a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A multigram-scale fabrication method was developed to modify molybdenum disulfide (MoS2) nanosheets with cetyl trimethyl ammonium bromide (CTAB), and the CTAB-modified MoS2 nanosheets (CTAB-MoS2) were applied to improve the properties of polymers. CTAB-MoS2 dispersed well in organic solvents and was incorporated into polystyrene (PS) by a masterbatch-based melt-blending method. The morphology, thermal behavior, fire resistance, and smoke suppression properties of the nanocomposites were studied. The CTAB-MoS2 nanosheets dispersed well in PS and exhibited a partial exfoliation structure. The incorporation of 3 wt% CTAB-MoS2 nanosheets led to an increase in thermal degradation temperature (43-60 degrees C) and char formation as well as a reduction of the peak heat release rate (PHRR) (20%). Moreover, the addition of CTAB-MoS2 nanosheets significantly decreased the smoke production rate (SPR), the peak specific extinction area (peak-SEA) values (52% reduction), and the gaseous products. The improvements in the thermal stability, fire resistance, and smoke suppression properties of PS nanocomposites were ascribed to good dispersion of modified MoS2 nanosheets, physical barrier effects, and catalytic char function of MoS2 nanosheets.
引用
收藏
页码:40170 / 40180
页数:11
相关论文
共 42 条
  • [1] Polypropylene/Organically Modified Sabah Montmorillonite Nanocomposites: Surface Modification and Nanocomposites Characterization
    Balakrishnan, Harintharavimal
    Ibrahim, Muthmirah
    Wahit, Mat Uzir
    Hassan, Azman
    [J]. POLYMER COMPOSITES, 2011, 32 (12) : 1927 - 1936
  • [2] Functionalized graphene oxide for fire safety applications of polymers: a combination of condensed phase flame retardant strategies
    Bao, Chenlu
    Guo, Yuqiang
    Yuan, Bihe
    Hu, Yuan
    Song, Lei
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (43) : 23057 - 23063
  • [3] Graphite oxide, graphene, and metal-loaded graphene for fire safety applications of polystyrene
    Bao, Chenlu
    Song, Lei
    Wilkie, Charles A.
    Yuan, Bihe
    Guo, Yuqiang
    Hu, Yuan
    Gong, Xinglong
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (32) : 16399 - 16406
  • [4] In situ preparation of functionalized graphene oxide/epoxy nanocomposites with effective reinforcements
    Bao, Chenlu
    Guo, Yuqiang
    Song, Lei
    Kan, Yongchun
    Qian, Xiaodong
    Hu, Yuan
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (35) : 13290 - 13298
  • [5] Short communication: Carbon nanotubes as flame retardants for polymers
    Beyer, G
    [J]. FIRE AND MATERIALS, 2002, 26 (06) : 291 - 293
  • [6] MoS2-MWCNT hybrids as a superior anode in lithium-ion batteries
    Bindumadhavan, Kartick
    Srivastava, Suneel Kumar
    Mahanty, Sourindra
    [J]. CHEMICAL COMMUNICATIONS, 2013, 49 (18) : 1823 - 1825
  • [7] Brominated flame retardants: Cause for concern?
    Birnbaum, LS
    Staskal, DF
    [J]. ENVIRONMENTAL HEALTH PERSPECTIVES, 2004, 112 (01) : 9 - 17
  • [8] Novel nanocomposite material consisting of poly [oxymethylene-(oxyethylene)] and molybdenum disulfide
    Bissessur, R
    Gallant, D
    Brüning, R
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2003, 82 (02) : 316 - 320
  • [9] Novel alkyl substituted polyanilines/molybdenum disulfide nanocomposites
    Bissessur, Rabin
    White, Wade
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2006, 99 (2-3) : 214 - 219
  • [10] Graphene-like MoS2/amorphous carbon composites with high capacity and excellent stability as anode materials for lithium ion batteries
    Chang, Kun
    Chen, Weixiang
    Ma, Lin
    Li, Hui
    Li, He
    Huang, Feihe
    Xu, Zhude
    Zhang, Qingbo
    Lee, Jim-Yang
    [J]. JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (17) : 6251 - 6257