Influence of Alkali and Silane Treatment on the Physico-Mechanical Properties of Grewia serrulata Fibres

Abstract

Grewia serrulata fibres were chemically treated with 3%, 6%, and 9% NaOH for the duration of 4 h. Additionally, the NaOH-treated fibres were also treated with 3 -(trimethoxysilyl) propyl methacrylate (silane). Properties such as density and tensile strength of the treated fibres were compared against the untreated fibres. The highest density was obtained in the case of 9% NaOH + silane treated fibres, which was 26.47% higher than untreated fibres, implying effective removal of hemicellulose. Likewise, the highest tensile strength was also obtained in the case of 9% NaOH + silane treated fibres. The increment observed in the tensile strength of the natural fibres was related to the removal of impurities, hemicellulose, and stress-raisers as well as deposition over the fibre surface that smoothed it. These observations were further validated by estimating changes in chemical constituents due to chemical treatment along with characterization techniques such as scanning electron microscopy and thermogravimetric analysis.

Evaluation of the Basic Properties for the Korean Major Domestic Wood Species

“…Bending strength KS F 2208 Cha et al, 2022;Darwis et al, 2023;Fujimoto et al, 2021;Hadi et al, 2019Hadi et al, , 2022Iswanto et al, 2017;Kang et al, 2023;Kim et al, 2020;Lee and Jang, 2023;Lee and Oh, 2023;Liu et al, 2022;Maulana et al, 2017;Oh, 2021Oh, , 2022Özcan and Korkmaz, 2019;Park et al, 2015bPark et al, , 2016Qi et al, 2019;Savero et al, 2020;Schulz et al, 2021;Song and Kim, 2023;Sumardi et al, 2022;Trisatya et Huh et al, 2022;Iswanto et al, 2021;Jain et al, 2022;Jung et al, 2019Jung et al, , 2021Jung et al, , 2022Manurung et al, 2019;Maulana et al, 2021;Maulina et al, 2020;Min et al, 2019;Purnawati et al, 2018;Seo et al, 2020 Extractives ASTM E 1690…”

Investigation of Zalacca Midrib – Based Composites Fibers as Prosthetic Socket Materials Accounting for a Variety of Alkali and Microcrystalline Cellulose Treatment.

“…In the case of coconut fiber, alkali treatment results in cleaner and coarser fiber due to the removal of impurities like lignin and wax through the reaction with NaOH [40]. The contact angle on fiber after treatment is smaller due to fiber surface area, fiber roughness, and loss of lignin and hemicellulose elements in fiber [41]. Fiber without alkali treatment showed a weight loss of 7.68% at temperature below 100 o C. Alkaline treatment for 2 hours exhibited a weight reduction of 6.78% and for 12 hours experienced a weight reduction of 5.82%.…”

Effect of Vascular Bundles and Fiber Sheaths in Nodes and Internodes of Gigantochloa apus Bamboo Strips on Tensile Strength

“…The use of column-shaped bamboo is limited; therefore, many culms are modified into other shapes. Various studies on bamboo and its properties include the development of bamboo strand boards (Maulana et al, 2021b), bamboo composites (Hwang and Oh, 2023), bamboo coloring (Lee and Lee, 2021), the termiticidal activity of bamboo vinegar against attacks by subterranean termites (Arsyad et al, 2020), and improvement of the properties of the fibers that make up the composite (Jain et al, 2022;Oh, 2020;Setyayunita et al, 2022). Increased durability of wood has also been carried out through bulk furfurylation (Li et al, 2020) and applied to wood materials (Hadi et al, 2022) and bamboo impregnation (Anwar et al, 2009) as applied to wood materials (Sumardi et al, 2020).…”