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    MANUFACTURING AND CHARACTERIZATION OF SUGAR BEET PULP PARTICLES FILLED POLYPROPYLENE MATRIX BIOCOMPOSITE
    (2025) Gökdemir, Barış; Sever, Kutlay; Atagür, Metehan; Şen, İbrahim
    In this study, Polypropylene (PP) matrix biocomposites were developed with the aim of reducing sugar beet pulp (SP) waste and demonstrating the potential of agricultural waste materials in various applications. Sugar beet pulp extracted from a sugar production factory was subjected to a drying process and then mechanically ground. Following this process, the resultant powdered sugar beet pulp particles were subjected to a sieving process, yielding particles within the size range of 100–250 ?m. These particles were then incorporated into the pure PP matrix at filling levels ranging from 5% to 20%. Subsequently, the mechanical (tensile, flexural, DMA), thermal (TGA, DSC), and chemical (FTIR) properties of these biocomposites were investigated. DMA results indicated a notable improvement in storage modulus with increased filler content, supporting the stiffening effect of sugar beet pulp particles. DSC analysis showed minimal change in melting temperature, but a slight decrease in crystallinity degree with higher filler ratios. FTIR spectra confirmed the presence of characteristic functional groups from lignocellulosic sugar beet pulp within the PP matrix, indicating successful incorporation. It was determined that the elastic modulus in the PP matrix biocomposites increased as the amount of sugar beet pulp particles increased. When the thermogravimetric analysis (TGA) data of PP and biocomposites were compared, an increase in the maximum degradation temperature (Tmax) was observed as the SP100 and SP250 ratio increased, while a decrease in the temperature at which degradation began (Ton) was observed. These biocomposites demonstrate promising potential for application in the automotive, packaging, and construction industries as sustainable materials.
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    Production and Characterization of Electrical Conductive Polymeric Hybrid Composites Containing Organic and Inorganic Materials
    (Prof.Dr. İskender AKKURT, 2025) Sever, Kutlay; Yılmaz, Hüseyin; Atagür, Metehan; Şen, İbrahim
    Polymer composites are becoming more and more involved in many industries such as aerospace, automotive, transportation and sports. As usage increases in the commercial market, the polymer industry provides materials to almost every area of technology and industry, allowing the production of materials or new materials to be produced and the development or orientation of new types of needs. In the last 10 years, the use of polymer composites has become the new materials needed in electronic technology. The aim of this study is to investigate the effects of polypropylene (PP) on mechanical and conductivity properties by using mica (M) as an inorganic filler and carbon nano tube (CNT) as an organic filler. Before hybrid composite materials were produced, polypropylene (PP) and M-PP composites were produced and composite with the best mechanical properties were selected. PP-M composites were produced by using a thermokincetic mixer with the addition of mica in 10%, 20%, and 30% weight ratios. Hybrid composites were manufactured using CNT addition into PP-20M with %1, %3, %5, and %7 weight ratios. Mechanical properties of the composite materials produced using tensile and bending tests and viscoelastic properties by dynamic mechanical analysis (DMA), thermal properties by differential scanning calorimeter (DSC) and thermogravimetric (TGA) analyses and morphological structures by scanning electron microscopy (SEM) were investigated. © IJCESEN.