Exploring the synergistic impact of carbon, SiO2, and Al2O3fillers on the properties of melt-spun polypropylene filaments


Sikhimbayeva M. Erdem R. Kenzhibayeva G. Yeziyeva M. Çoşgun A.
2025SAGE Publications Ltd

Textile Research Journal
2025

The current study investigates the effects of incorporating various fillers of carbon, silica, and alumina into polypropylene (PP) filaments produced via melt-spinning, aiming to enhance their thermal and mechanical properties. Both single-type and multifiller systems were employed to assess individual and synergistic impacts on composite filament performance. PP filaments were fabricated under optimized processing conditions, and their morphological, structural, thermal, and mechanical behaviors were systematically evaluated using scanning electron microscopy combined with energy dispersive spectroscopy, Fourier transform infrared spectroscopy, and tensile tests. The results revealed that multifiller combinations significantly improved the thermal stability and mechanical strength of PP filaments, outperforming single-filler systems at equivalent loading levels (4.3 wt.%). The best-performing sample, containing a synergistic blend of all three fillers, achieved the highest thermal decomposition temperature (541°C), a notable increase in tensile strength (57 MPa), and preserved elongation at break (350%). Thermogravimetric and differential scanning colorimetric analyses confirmed the improvements in thermal resistance and melting behavior associated with optimized multifiller incorporation. In contrast, single-filler filaments, especially those with high alumina content, demonstrated limited reinforcement effects and pronounced brittleness due to poor dispersion and agglomeration.

additive , filament , filler , Melt spinning , polypropylene , thermal properties

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M. Auezov South Kazakhstan University, Textile and Food Engineering Faculty, Department of Technology and Design of Textile Materials, Kazakhstan
Akdeniz University, Serik GSS Vocational School, Department of Textile Technology, Antalya, Turkey
M. Auezov South Kazakhstan University, High School of Chemical Engineering and Biotechnology, Department of Ecology, Kazakhstan
Akdeniz University, Fine Arts Faculty, Department of Textile and Fashion Design, Antalya, Turkey
Akdeniz University, Engineering Faculty, Department of Mechanical Engineering, Antalya, Turkey

M. Auezov South Kazakhstan University
Akdeniz University
M. Auezov South Kazakhstan University
Akdeniz University
Akdeniz University

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