Open AccessDEVELOPMENT DESIRED PROPERTIES OF POLYSTYRENE NANO COMPOSITES BY ADDING POLYMERIC MODIFIERS
Author(s) -
Sihama I. Salih
Publication year - 2019
Publication title -
the iraqi journal for mechanical and materials engineering/maǧallaẗ al-ʻirāqiyyaẗ li-l-handasaẗ al-mīkānīkiyyaẗ wa-handasaẗ al-mawādd
Language(s) - English
Resource type - Journals
eISSN - 2313-3783
pISSN - 1819-2076
DOI - 10.32852/iqjfmme.v19i2.319
Subject(s) - materials science , polystyrene , composite material , nanocomposite , ultimate tensile strength , polymer , nanoparticle , nanomaterials , composite number , modulus , nanotechnology
The introduction of polymeric blend-based nanomaterials has encouraged the developmentof flexible nanocomposites for structural applications in need of superior mechanical,performance. In current research, three groups of polystyrene blend-based nanocompositessamples were fabricated by melting technique using a twin-screw extruder. These samplesconsist of polymer blend (polystyrene (PS): 1% copolymer (polystyrene (PS)-co- maleicanhydride (MA)): 3%ABS) as a matrix material, was strengthen by three different type ofpowders in nanometer size (silica (SiO2), cement kiln dust (CKD) and Fly ash (FA))individually, with selected weight ratio (0, 0.2, 0.4, 0.6 & 0.8 wt. %) for each of them.Experimental investigation was carried out for tensile properties and fatigue strength besidesFTIR test and morphology analyzing of fracture surfaces by SEM. The results showed thattensile strength values and modulus of elasticity increased as the nanoparticle content incomposite increased, but according to specific percentages of nanoparticle content in thecomposites samples, for three groups of the prepared nanocomposites samples. Moreover,the fatigue test revealed the super-improvement in the fatigue properties of the selectedhybrid nanocomposites samples, as compared with neat polystyrene and polymer blend (PS:1% (PS-co-MA): 3% ABS) and fatigue limit was apparent for all types of hybridnanocomposites materials produced in this work. Morphology of the fracture surface wasshowed a homogeneous structure formation for optimal samples of each group ofcomposites, indicating a good compatibility between the component materials of polymerblend and the reinforcement nanoparticles.