Study of physical and mechanical properties of low density polyethylene mixed with Ag-zeolite nanoparticle

In this study, low density polyethylene (LDPE) film was mixed with Ag-zeolite
nanoparticle. The aims of this research were to test physical (yellowness, gloss, DSC, and
SEM) and mechanical properties ( tensile strength and elongation at break )of pure LDPE
and LDPE mixed with Ag-zeolite nanoparticle at 0.5 and 1 % (by weight). In the experiment
a twin screw extruder was used for blending LDPE resin with 0.5 and 1 %wt. of Ag-zeolite
nanoparticle. After that a blown film extruder was then used for blowing 3 types of LDPE film
(pure LDPE, LDPE with 0.5% and 1% wt of Ag-zeolite )with thickness of approximately
to 0.06mm. There after, physical and mechanical properties of those produced film was
investigated. The results showed that Ag-zeolite nanoparticle, which was added in LDPE film,
did not affect on yellowness and gloss (60°) of those film. Likewise, it was also indicated
that the Differential scanning calorimetry: (DSC) of LDPE with Ag-zeolite nanoparticle in
both amount was also insignificantly changed when compared with the pure LDPE film.The
results from a scanning electron microscope (SEM) pictures showed that there was difference
dispersion of Ag-zeolite between LDPE films at 0.5 and 1 %wt of Ag-zeolite nanoparticle.
Moreover, it was found that tensile strength values in machine direction (MD) of both pure
LDPE and LDPE with Ag-zeolite nanoparticle films were insignificantly different while
tensile strength in transverse direction (TD) were significantly decreased. In addition, the
results showed that Ag-zeolite nanoparticle could also significantly decrease the elongation at
break in both MD and TD of those LDPE with Ag-zeolitefilms.