TY - JOUR
T1 - Molybdenum disulfide nanosheets as barrier enhancing nanofillers in thermal decomposition of polypropylene composites
AU - Feng, Xiaming
AU - Wang, Bibo
AU - Wang, Xin
AU - Wen, Panyue
AU - Cai, Wei
AU - Hu, Yuan
AU - Liew, Kim Meow
PY - 2016/7/1
Y1 - 2016/7/1
N2 - A novel method of preparing the molybdenum disulfide (MoS2) nanosheets coated by polypropylene (PP) latex enables the fabrication of PP/MoS2 nanocomposites in scalable quantities. PP nanocomposites with various contents of MoS2 nanosheets were prepared by simply melt-blending the coated MoS2 and PP materials. The barrier effect of MoS2 nanosheets in the thermal decomposition process of PP materials was investigated under different atmosphere by thermogravimetric analysis (TGA), microscale combustion colorimeter (MCC) and thermogravimetric analysis-infrared spectrometry (TG-IR). Importantly, the peak heat release rate (PHRR) of PP/MoS2 nanocomposites with MoS2 loadings of 1.6 wt% is decreased by 28.1% compared to that of neat PP. Moreover, the thermal oxidative stability of PP is dramatically reinforced with the incorporation of MoS2 nanosheets. A 41.3 °C increase in the temperature of the onset of degradation (T-10%) and a 40.1 °C increase in the temperature of maximum weight loss (Tmax) were observed by inclusion of as low as 1.6 wt% MoS2 nanosheets. The excellent barrier performance together with the favorable compatibility of MoS2 nanosheets is regarded as the key point for the reinforcement of thermal oxidative stability and reduction of flammable pyrolysis gas, which can provide promising applications in the development of fire safety polymer materials.
AB - A novel method of preparing the molybdenum disulfide (MoS2) nanosheets coated by polypropylene (PP) latex enables the fabrication of PP/MoS2 nanocomposites in scalable quantities. PP nanocomposites with various contents of MoS2 nanosheets were prepared by simply melt-blending the coated MoS2 and PP materials. The barrier effect of MoS2 nanosheets in the thermal decomposition process of PP materials was investigated under different atmosphere by thermogravimetric analysis (TGA), microscale combustion colorimeter (MCC) and thermogravimetric analysis-infrared spectrometry (TG-IR). Importantly, the peak heat release rate (PHRR) of PP/MoS2 nanocomposites with MoS2 loadings of 1.6 wt% is decreased by 28.1% compared to that of neat PP. Moreover, the thermal oxidative stability of PP is dramatically reinforced with the incorporation of MoS2 nanosheets. A 41.3 °C increase in the temperature of the onset of degradation (T-10%) and a 40.1 °C increase in the temperature of maximum weight loss (Tmax) were observed by inclusion of as low as 1.6 wt% MoS2 nanosheets. The excellent barrier performance together with the favorable compatibility of MoS2 nanosheets is regarded as the key point for the reinforcement of thermal oxidative stability and reduction of flammable pyrolysis gas, which can provide promising applications in the development of fire safety polymer materials.
KW - Latex technology
KW - Molybdenum disulfide nanosheets
KW - Physical barrier effect
KW - Polypropylene nanocomposites
KW - Thermal stability
UR - http://www.scopus.com/inward/record.url?scp=84961783995&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84961783995&origin=recordpage
U2 - 10.1016/j.cej.2016.03.059
DO - 10.1016/j.cej.2016.03.059
M3 - RGC 21 - Publication in refereed journal
SN - 1385-8947
VL - 295
SP - 278
EP - 287
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -