Fire and thermal resistance properties of chemically treated ligno-cellulosic coconut fabric–reinforced polymer eco-nanocomposites

Abstract

The present work was aimed to develop naturally woven coconut sheath/polyester biocomposites. In these composites, montmorillonite nanoclay (5 wt%) was used as a second filler. The heat releasing rate and other flammability properties were studied using cone calorimeter. The coconut sheath reinforcement in polyester matrix significantly decreased the heat releasing rate when compared to that of the pristine polyester. However, the time to ignite the composite material was shorter than that of the pure polyester. The morphological changes on the fiber surface by the chemical modification significantly influenced the heat-releasing rate and other flammability characteristics due to better interfacial bonding. The hybridization effect of 5 wt% of nanoclay could greatly decrease the heat release rate and the mass loss rate of the composites by char formation mechanism. The characterization techniques such as the scanning electron microscopy and the transmission electron microscopy were used to study the morphological state of the fiber surface and dispersion of clay in the polyester nanocomposites. The thermogravimetric analysis was also carried out to study the effect of the nanoclay on the thermal stability of the coconut sheath/polyester composites at higher temperatures.

Potential Natural Fiber Polymeric Nanobiocomposites: A Review

“…There are various types of nanomaterials (NMs), such as graphene oxide, silver, TiO 2 , ZnO, SiO 2 , and polyhedral oligomeric silsesquioxane (POSS)), which are used for diverse potential applications. However, for NBC production, TiO 2 , SiO 2 , carbon nanotube, ZnO, and graphene oxides are receiving more attention and are still being reported by different scientists [105,139,140]. Biofibers are naturally hydrophilic, but epoxy resins are hydrophobic, which results in weaker bonding in the NBC matrix, providing poor mechanical properties.…”

Dynamic-mechanical properties as a function of luffa fibre content and adhesion in a polyester composite

“…Breaking of chemical bonds inside the polymer system, eventually between fibre and matrix, and thermal degradation were also observed in treated composites. Surface treatment of fibres increased the relative cellulose content in the fibre, which is supposed to postpone thermal degradation [11,12] and influence the composite properties. A previous study of the group [13], focused on mechanical and tribological properties of untreated and alkali-treated luffa fibre composites, reporting the benefit of mercerization in static property enhancement.…”

A review on the damping properties of fiber reinforced polymer composites

“…The energy in fiber reinforced composites might be dissipated in different approaches [23,[36][37][38]. The major contribution to the energy dissipation of fiber reinforced composites is drawn from the viscoelastic properties of polymer matrix.…”