Abstract
High-density polyethylene (HDPE) composite films with di erent amounts of SiO 2 nanoparticles ( 1 - 20 % vol.) were prepared by melt blending using a high-pressure thermal pressing technique. The morphological characterization, surface topology and distribution of nanoparticles in polymer matrix of nanocomposites were investigated by using Scanning electron microscopy (SEM) and atomic force microscopy (AFM). The thermal characterization of the nanocomposites were investigated by di erential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). SEM and AFM results revealed that silica nanoparticles aggregates were distributed mainly homogeneously. The nano-fillers change supramolecular structure and surface morphology of HDPE strongly. DSC results showed addition of nano-SiO 2 particles slightly decrease the melting temperature by 3-4 degree but strongly decrease the crystallization temperature by 7-8 degree. And crystallinity degree of the HDPE decrease. The thermal stability of the composite films was measured using Thermo Gravimetric analysis (TGA). Polymer nanocomposite showed higher thermal stability as compared with pure HDPE. Composites with 20% vol. of nano-SiO 2 have maximum thermal degradation temperature of 498.4 ◦ C.
Highlights
In recent years, inorganic nanoparticles filled polymer composites have received increasing research interests of materials scientists because the filler/matrix interfaceEurasian Journal of Physics and Functional Materials, Vol.3(4)in these composites might constitute a much greater area and influence the composites properties to a much greater extent at rather low filler concentration as compared to with traditional composites [1].Polymer nanocomposite materials are manufactured commercially for many diverse applications such as isolation materials, aerospace components, automobiles, etc
The morphological characterization, surface topology and distribution of nanoparticles in polymer matrix of nanocomposites were investigated by using Scanning electron microscopy (SEM) and atomic force microscopy (AFM)
Nanocomposite films consisting of high-density polyethylene matrix (HDPE) filled with amorphous silica dioxide α -SiO 2 of spherical morphology were prepared by thermal pressing at a temperature 165 ◦ C, followed by rapid cooling in water-ice system
Summary
Inorganic nanoparticles filled polymer composites have received increasing research interests of materials scientists because the filler/matrix interfaceEurasian Journal of Physics and Functional Materials, Vol.3(4)in these composites might constitute a much greater area and influence the composites properties to a much greater extent at rather low filler concentration as compared to with traditional composites [1].Polymer nanocomposite materials are manufactured commercially for many diverse applications such as isolation materials, aerospace components, automobiles, etc. Inorganic nanoparticles filled polymer composites have received increasing research interests of materials scientists because the filler/matrix interface. Eurasian Journal of Physics and Functional Materials, Vol.3(4). In these composites might constitute a much greater area and influence the composites properties to a much greater extent at rather low filler concentration as compared to with traditional composites [1]. In the field of nanotechnology, polymer based nanocomposites have become an important area of current research and development. The addition of inorganic spherical nanoparticles to polymers allows the modification of the polymers physical properties as well as the implementation of new features in the polymer matrix. The structure of nanocomposites is essentially established by the arrangement of the particles in the polymer matrix. The particles may be dispersed as individual primary particles or as aggregated particles (secondary particles) [2]
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