mass-spectrometry-congress-2019-scientifictracks

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Page 29

May 20-21, 2019 | Rome, Italy

OF EXCELLENCE

IN INTERNATIONAL

MEETINGS

YEARS

Journal of Chemical Technology and Applications | Volume 3

MASS SPECTROMETRY,

PROTEOMICS AND POLYMER CHEMISTRY

International Conference on

Mass Spectrometry Congress 2019

PREDICTION OF MECHANICAL PROPERTIES OF PP/EVA POLYMER BLENDS GOVERNED

BY EVA PHASE CHANGE IN THE PRESENCE OF ENVIRONMENTALLY FRIENDLY INOR-

GANIC TUNGSTEN DISULFIDE NANOTUBES (INT‐WS2)

Reza Nikoomanesh

Jam petrochemical Complex, Iran

nticipating dynamic mechanical behavior of polymeric materials over long period of time and under differ-

ent frequencies is the first step to be taken to afford loadbearing applications. Nevertheless, what we know

about dynamic mechanical behavior of polymers is only limited to experiments, which necessitates large pools

of data spending too much money, time and energy. Environmentally-friendly inorganic tungsten disulfide

nanotube (INT-WS2), was introduced to polypropylene/ethylene vinyl acetate copolymer (PP/EVA, 75/25 wt/

wt) blends through melt mixing and dynamic mechanical analysis (DMA) frequency sweep tests were per-

formed to obtain master curves based on time-temperature superposition (TTS) theorem. The influence of EVA

phase change (solid, semi-solid and melt domains) on the creep and recovery behavior of nanocomposites

in linear region was then studied. It was found that using INT-WS2 along with PP-g-MA results in distinctive

improvement in creep-recovery response of nanocomposites. Burger and Weibull models were used to mimic

viscoelastic behavior of the nanocomposites. Creep compliance master curves predicted creep compliance,

while analysis of cyclic creep-recovery at 30 8C revealed almost constant permanent strain parameters for sam-

ple having 5wt% INT-WS2 and PP-g-MA after three times repeating test cycles. Influence of phase change phe-

nomenon of EVA domains on creep-recovery behavior of nanocomposites was mechanistically demonstrated.

Reza Nikoomanesh, J Chem Tech App 2019, Volume 3

Reza Nikoomanesh has completed his Masters from Islamic Azad University, Iran in the field of Chemical-Polymer Engineering. He is

the Head of Physical Mechanical Laboratory of Jam Petrochemical Complex, Iran.

BIOGRAPHY