Abstract:
Science and technology never stop to flourish for ease of human being. Packages materials
are very important and frequently used product. Passing time brings different type of
issues. An issue is reported worldwide, leakage of Carbon Dioxide gas through voids of
PET (Polyethylene Terephthalate) bottles in beverages industry. Advancement of science
and technology drove researchers to work for advance materials, 2D nanomaterials have
splendid properties which can be helpful to get through this industrial issue. Variety of
layered structures materials are available on planet earth as a gift of nature. Tungsten
Disulfide (WS2) is a novel material with splendid properties to build barrier for gas. 2D
nanosheets of WS2 can be incorporated in polymer to overcome gas leakage. Different
scientific approaches are applied in laboratories and process industries to get desired form
of a materials. Synthesis of 2D materials have different methods. In this study 2D
nanosheets were synthesized by Liquid Phase Exfoliation. Which were incorporated in
industrial PET by using TIPS (Temperature Induced Phase Separation) method. Different
samples were prepared on the basis of variation in two factors, Centrifuge RPM and
loading of nanosheets (weight percent). Nanosheets were synthesized on three different
values of centrifuge RPM 500, 750 and 1000 RPM. Nanocomposites were prepared with
four different values of filler loading 0.0024, 0.005, 0.01 and 0.02 weight percent. 700
RPM and 0.01 weight percent of filler appeared to be the best value after comparison of
results. Thin films of PET/WS2 nanosheets were tested by gas permeation testing unit,
remarkable reduction in CO2 was observed. Experimental findings were compared to
theoretical models, it was discovered that the Cussler model came the closest to our
experimental findings. SEM, XRD and AFM techniques were used to authenticate the
study. Morphology and porosity were confirmed by SEM, for analytical measurements
AFM technique was used and XRD proved the crystallinity of nanosheets and presence
of nanosheets in polymer structure
