Flame retardancy behaviors and structural properties of polypropylene/nano‐SiO₂composite textile filaments

Abstract

The number of efforts about modifying the properties of polymeric fibers by organic or inorganic particles has increased recently because of high-tech applications of textiles. In addition to these attempts, the discovery of nanotechnology also leads to the development of nanoparticles for various end uses such as nanocomposite fibers. In this article, we aimed to produce slow burning or flame retardant polypropylene filaments for carpet pile yarns by incorporating SiO 2 nanoparticles into polymer. Therefore, we present the preparation of filaments incorporating 0.3, 1, and 3% SiO 2 nanoparticles and investigate the effects of nanoparticles on the flame retardancy and structural behavior of filaments. Polypropylene and nanoparticles were compounded by melt-compounding using twin-screw extruder before spinning. Filaments with trilobal cross sections were spun using pilot melt spinning equipment. The structural properties of nanocomposite fibers were analyzed using X-ray difractometry, differential scanning calorymetry, scanning electron microscopy, and tensile tests. The flammability behaviors of filaments were evaluated using the oxygen index method. The effect of nanoparticles on structural properties and flame retardancy behaviors of filaments were summarized and discussed. V

Effect of Nanosilica on Thermal, Flammability, and Morphological Properties of Wf/RPS-Based Nanocomposites

“…Silica nano particles are also the thermal barrier of oxygen that improves its flame dilatory property. ERDEM et al, (2009) also reported the improvement of the flame dilatory property with the addition of nanosilica.…”

Thermal, Flammability, and Morphological Properties of Nano-composite from Fir Wood Flour and Polypropylene

“…Silica nanoparticles also formed a thermal barrier against oxygen and improved the property of flame deterrence. Erdem et al (2009) also reported the improvement of flame postponement under the effect of the addition of nanosilica. In addition, an enhancement of nanosilica particles could occupy part of the voids and reduce pores; therefore, the accessibility of oxygen for ignition would be more difficult.…”

Part I: Characterization of Flammability Behavior of Polyester Fabric Modified with Sol-Gel

“…Flame-retardant materials are used in a wide range of applications e.g. textile, aerospace and automotive application (Erdem et al, 2009;Mostashari, 2008). Nowadays, many studies on the fire retardancy of PET have been done, in particular, different additives such as: phosphorus species (Chapple & Ferg, 2006;Zhu et al, 2004;Rohringer et al, 1975;Goodman & Sheanan, 1990;Ge, 2008;Asrar, 1999), silica particles (Sequeira et al, 2007) and halogen compounds (Wilson et al, 1969) have been investigated to reach this goal.…”