Physicochemical Properties of Nanocellulose Extracted from Pineapple Leaf Fibres and Its Composites

Fareez, Ismail M.; Haque, Nazmul; Ooi, Der Juin; Jasni, Ainil Hawa; Aziz, Fauziah Abd

doi:10.1007/978-981-15-1416-6_9

Cited by 4 publications

(2 citation statements)

References 54 publications

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“…The bleaching process used 1.7% NaClO2 concentration and mixed 0.2 M CH3COOH at 80°C for 4 hours, with a ratio of 20:1. After that, it was neutralized using H2O to pH 7-8 and dried for 1 day [7]. The results of the research above, it was found P that the greatest tensile strength value was produced in pineapple fiber which was treated with alkaline treatment with a NaOH concentration of 6%, which was 1620 MPa [8].…”

Section: Table 1 Comparison Of Lignin Content In Naturalmentioning

confidence: 95%

Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material

Triastuti,

Suprapto,

Surono

et al. 2023

IJOE

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Pineapple is a local commodity in Indonesia that is widely cultivated. The part of the pineapple plant that is mostly used is only the fruit part, while the other plant parts are discarded and become waste. Pineapple leaves contain high fiber content of cellulose, lignin, and hemicellulose, so it has very potential if used as an alternative textile raw material. The quality of pineapple leaf fiber can be improved by going through a delignification process using an alkaline solvent with the appropriate concentration and time. This research determine the effect of delignification of pineapple leaf fiber with a solution of Sodium Hydroxide (NaOH), Hydrogen Peroxide (H2O2) and water (H2O) on tensile strength, lignin content and SEM Analysis. This research consists of six stages including delignification using NaOH and H2O2, washing, neutralization, and analysis of pineapple leaf fiber products. The results obtained are pineapple leaf fiber lignin test after delignification and bleaching, the best lignin results are steam delignification at 80°C with 3% NaOH solution and bleaching solution using NaOCl solution obtained 21% lignin content with a tensile strength test of 0,263 kgf/mm 2 . SEM analysis also showed that there was a loss of material from the fiber surface indicated there was degradation.

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Section: Table 1 Comparison Of Lignin Content In Naturalmentioning

confidence: 95%

Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material

Triastuti,

Suprapto,

Surono

et al. 2023

IJOE

View full text Add to dashboard Cite

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“…The increase in crystallinity after subsequent alkali and bleaching treatments have been well documented. [48,49] Upon acid hydrolysis, the subsequent increase of the crystallinity index value of purified CNC was observed. The enhanced crystallinity index of pulp and CNC can be ascribed to the progressive removal of amorphous noncellulosic materials during alkali treatment, bleaching, and acid hydrolysis.…”

Section: Cellulose Nanocrystalsmentioning

confidence: 99%

Characterization of nanocellulose from Indica rice straw as reinforcing agent in epoxy‐based nanocomposites

Razali

Fareez

Aziz

2021

Polymer Engineering & Sci

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The extraction of nanocellulose from agro-waste have received wide attention in nanocomposite technologies. This research unravels physico-chemical characteristics of cellulose from Malaysia Indica rice straw, and the derived cellulose nanocrystal (CNC) by hydrochloric acid (HCl) hydrolysis. The CNC was subjected to field emission scanning electron microscopy (FESEM) and/or transmission electron microscopy (TEM) and Fourier transformed infrared (FTIR) studies. Furthermore, X-ray diffraction (XRD) and small-angle X-ray scattering (SAXS) were compared with TEM for the CNC lateral crystal size.Subsequently, CNC reinforced epoxy laminates for Kevlar were prepared and tested for their tensile properties. While FTIR analysis confirmed the monoclinic cellulose structure of the isolated CNC, XRD, and SAXS were compared with TEM for the CNC lateral crystal size. Hydrolysis of the cellulose sample yielded 40.87% of CNC with 4.8 nm in width and a needle-shaped nature. The extracted CNC has relatively low crystallinity (56.12%) but interestingly low crystallite size with an average crystallite size of 1.69 nm (XRD) and 4.18 nm (SAXS). Furthermore, an addition of just 1 wt% of CNC to epoxy composite increased the strength of Kevlar by over 300% and the elastic modulus by nearly three-fold. Nanocellulose obtained from rice straw have great potential as reinforcing agents for the manufacture of nanocomposites.

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Socially‐Directed Development of Materials for Structural Color

et al. 2022

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Advancing a socially‐directed approach to materials research and development is an imperative to address contemporary challenges and mitigate future detrimental environmental and social impacts. This paper reviews, synergizes, and identifies cross‐disciplinary opportunities at the intersection of materials science and engineering with humanistic social sciences fields. Such integrated knowledge and methodologies foster a contextual understanding of materials technologies embedded within, and impacting broader societal systems, thus informing decision making upstream and throughout the entire research and development process toward more socially responsible outcomes. Technological advances in the development of structural color, which arises due to the incoherent and coherent scattering of micro‐and nanoscale features and possesses a vast design space, are considered in this context. Specific areas of discussion include material culture, narratives, and visual perception, material waste and use, environmental and social life cycle assessment, and stakeholder and community engagement. A case study of the technical and social implications of bio‐based cellulose (as a source for structurally colored products) is provided. Socially‐directed research and development of materials for structural color hold significant capacity for improved planetary and societal impact across industries such as aerospace, consumer products, displays and sensors, paints and dyes, and food and agriculture.

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Physicochemical Properties of Nanocellulose Extracted from Pineapple Leaf Fibres and Its Composites

Cited by 4 publications

References 54 publications

Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material

Effect of Steam Delignification and Bleaching Process on Pineapple Leaf Fiber as Textile Raw Material

Characterization of nanocellulose from Indica rice straw as reinforcing agent in epoxy‐based nanocomposites

Socially‐Directed Development of Materials for Structural Color

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