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Nanomat 2019 Nano Research & Applications
ISSN: 2471-9838 Page 31
January 28-29, 2019
Barcelona, Spain
18th Edition of International Conference on
Emerging Trends in
Materials Science and
Nanotechnology
Plastics, despite thier many advantages, are well known for thier
flammability, generation of large amount of toxic gases and
hazardous substances. Due to the growing use of these materials
in everyday life and incrasing environmental requirements, the
flammability of these materials is a topic that has recently become
more and more popular. The aim is to make the polymers emit less
and less heat during combustion while increasing the temperature
of their ignition. Tungsten disulfide (WS2) belongs to the family
of transition metal dichalcogenides (TMDs) whose properties are
comperable of those of graphene. WS2 monolayer exhibit very
intresting properties, such as high in-plane carrier mobility and
electrostatic modulation of conductance and very good thermal
propeties. In thisworkweprove, that few-layerWS2 improve thermal
proportiesand reduce flammabilityof polymers.Theseeffectswere
furher enhanced by the growth of carbon nanotubes on exfolieted
WS2 functionalized with nickel and iron oxides. Flame retardant
properties were investigated by thermogravimetric analysis (TGA),
microcalorimetry and laser flash analysis. Comparing the obtained
values of heat released during combustion, it can be observed
that the addition of fillers reduces flammability compared to the
neat polymers. It is revealed that these composites can provide
a certain physical barrier and inhibit the diffusion of heat and
gaseous products during combustion.
Biography
K Maslana is a first-year PhD student. During her Master’s thesis she explored
thermal behavior of 2D materials in commercial polymers. The results of her
Master thesis are published partially in K Wenelska, K Maslana, E Mijowska,
Study on the flammability, thermal stability and diffusivity of polyethylene nano-
composites containing few layered tungsten disul de (WS2) functionalized
withmetal oxides, RSC Advances, 2018. She continues her research interest in
the field of fire retardant properties of molecular hybrids.
Few layered tungsten disulfide/carbon
nanotubes polymer based nanocomposites-
synthesis and thermal behaviour
K Maslana, K Wenelska and E Mijoska
West Pomeranian University of Technology, Poland
K Maslana et al., Nano Res Appl 2019, Volume 5
DOI: 10.21767/2471-9838-C1-031