Low-Velocity Impact Analysis of Pineapple Leaf Fiber (PALF) Hybrid Composites

Abstract

The low-velocity impact behaviour of pineapple leaf fiber, PALF reinforce epoxy composite (P), PALF hybrid (GPG), and four-layer woven glass fiber (GGGG) composite was investigated. As for post-impact analysis, the damage evaluation was assessed through photographic images and X-ray computed tomography, using CT scan techniques. The key findings from this study are that a positive hybrid effect of PALF as a reinforcement was seen where the GPG shows the delayed time taken for damage initiation and propagation through the whole sample compared to GGGG. This clearly shows that the addition of fibers does have comparable composite properties with a fully synthetic composite. Through the visual inspection captured by photographic image, the presence of woven fiber glass mat in GPG presents a different damage mode compared to P. Moreover, CT scan results show extended internal damage at the cross-section of all impacted composite.

The antibiofilm activity of purified and characterized mannan from Saccharomyces cerevisiae against multidrug-resistant Escherichia coli

“…The tiny holes or cracks in the mannan polymer could result in filtration or absorption of the other substances, leading to interactions with the environmental materials or absorption of the liquid materials, which could affect the physical and mechanical properties of this polymer. The size of the surface pores in mannan correlated with the intermolecular or intramolecular forces, while the rough surface and perforations could affect the overall appearance and texture of the polymer; potentially causing surface imperfections, in consistence with Najeeb et al, (2021). These properties caused the development of porous carbon materials that are derived from the biomass-based carbohydrates, such as mannan, thus becoming highly attractive for applications in the organic synthesis, offering tunable properties; excellent catalytic activity, and stability (Lin et al, 2022).…”

Physical, Mechanical and Perforation Resistance of Natural-Synthetic Fiber Interply Laminate Hybrid Composites

“…According to the visual inspection acquired by the photographic image, the existence of woven fibre glass mat in the palf hybrid of glass fiber/palf/glass fibre (GPG) presented a different damage mechanism than palf. Furthermore, CT scan data revealed extensive interior damage in all damaged composites at the cross-section [ 174 ]. Hoekstra et al examined the effects of machining processes on the damage response and surface quality of open-hole hybrid carbon/flax composites.…”

Effects of Ply Orientations and Stacking Sequences on Impact Response of Pineapple Leaf Fibre (PALF)/Carbon Hybrid Laminate Composites

“…One of the best options for natural reinforcement fibre is pineapple leaf fibre (PALF), a massive amount of biomass waste abundantly available in tropical countries [ 11 ]. Furthermore, among the several natural fibres extracted from plant leaves, PALF has the largest portion of fibre content and the minimum microfibrillar angle, which is the primary reason for its excellent impact performance [ 12 ]. PALF is the most often used fibre in the textile industry for various reasons, including its abundance, low cost, superior thermal and acoustic insulation, exceptional tensile strength, and high toughness.…”