Effects of sodium hydroxide treatment on microstructure and mechanical properties of lotus fibers

Cheng, Cheng; Guo, Ronghui; Lan, Jianwu; Jiang, Shou-xiang Kinor; Du, Zoufei; Zhao, Ludan; Peng, Linghui

doi:10.1007/s12221-017-1136-3

Cited by 13 publications

(7 citation statements)

References 21 publications

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“…Furthermore, a decrease in DSF weight effect, leads to a decrease in the yield produced. The decrease in yield due to alkali treatment was also reported in pear pomace materials 45 , energycane bagasse 44 , and lotus Fiber 46 .…”

Section: Yield Of Delignificated Sago Frondsupporting

confidence: 55%

Cellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents

Arnata¹,

Suprihatin²,

Fahma³

et al. 2019

Orient. J. Chem

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Sago frond is a lignocellulose waste that it has not been utilized optimally. The purpose of this study was to produce cellulose from sago frond with alkaline delignification and bleaching on various types of bleach agents. The study was conducted in three stages, namely a characterization of sago frond, alkaline delignification, and bleaching. Proximate analysis showed that sago fronds are potentially used as a cellulose source. The treatments of alkaline delignification and bleaching on various types of bleach agents significantly affected the characteristics of cellulose. The delignification using 10% NaOH for 2 h, after which the bleaching was carried out using the alkaline hydrogen peroxide for the same duration, thereby, producing cellulose of the highest degree of crystallinity and whiteness, while the hemicellulose and lignin contents were relatively low. Thus, sago frond has the potential to be used as a cellulose source and is widely applied.

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Section: Yield Of Delignificated Sago Frondsupporting

confidence: 55%

Cellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents

Arnata¹,

Suprihatin²,

Fahma³

et al. 2019

Orient. J. Chem

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“…The raw luffa cylindrica fibers were cut into 2  2 cm sizes, then treated with a sodium hydroxide 6% solution at 70°C for 6 hours, after which they were washed with fresh water to neutralize. [9,21,27,28] They are then cut into pulp fibers using a food mixer. The pulp fibers are passed through rotating grindstones revolving at 1000 rpm within 20 minutes.…”

Section: Preparation Of Micro-sized Luffa Cylindrica Fibersmentioning

confidence: 99%

“…Natural fiber-reinforced composite materials are an example of typically biocomposites; they are biodegradable and a source of raw materials, thus attracting the attention of many scientists for research. [1][2][3][4][5][6][7][8][9] In industries such as textiles, packaging, construction, aerospace, automotive, electronics, and medicine, more and more environmentally friendly biocomposites are being used. [10][11][12][13][14][15][16][17][18] Luffa fibers are combined with ground nut in a ratio of 1:1 by volume fraction.…”

Section: Introductionmentioning

confidence: 99%

Effect of micro‐sized luffa cylindrica fibers on the mechanical properties of epoxy epikote 828

Trung,

Huu,

Anh

et al. 2023

Vietnam Journal of Chemistry

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Micro‐sized luffa cylindrica fibers (MLCFs) are made from raw luffa natural fibers from Vietnam and are environmentally friendly while possessing good mechanical strength. This work focuses on the mechanical properties of composite based on epoxy epikote 828 reinforced with MLCFs, particularly the fracture toughness. The results show that the MLCFs content has a great influence on the fracture toughness, especially the critical‐stress intensity factor (KIC) and izod impact strength of composite. Specifically, when using MLCFs reinforced from 0 to 2.0 wt.%, the critical‐stress intensity (KIC) increased from 1.89 to 4.60 MPa.m1/2, while the izod impact strength increased from 3.6 to 7 KJ/m2, respectively. The thermal behavior of the composite reinforced with MLCFs at different contents was determined using thermogravimetric analysis (TGA). The surface fracture structure of the composite samples was determined using scanning electron microscopy (SEM) method.

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“…We considered the appropriate ranges of the most influential parameters to be the ones where continous, bead-free, stable and dry fiber is obtained. The reported ranges in the previous work for process parameters are [12][13][14][21][22][23][24].…”

Section: Solution Preparation and Range Of Parametersmentioning

confidence: 99%

A postgraduate experiment: a study of fabricating nanofibers by electrospinning

Khan¹,

Mahmood²,

Raees³

et al. 2021

Eur. J. Phys.

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The purpose of this work is to propose an experiment based on the fabrication of nanofibers by an electrospinning method that may become part of curricula at postgraduate level, for students of physics. This addition will not only increase the teaching capabilities of scientist and researchers at this level but also enhance the basic understanding of physics students of experimental setup and their approach to explore untouched areas in the field of nano-science in the future. This experiment gives a qualitative analysis of some physical parameters that affects the morphology and size of polyvinyl alcohol (PVA) nanofibers. The experiment has been performed on a trial basis, at the Department of Physics, University of Karachi. During the experiment we studied the effect of needle diameter and concentration of PVA on the size of nanofibers by SEM analysis. The statistical analysis of PVA nanofibers was performed by one-way analysis of variance by considering a P-value equal to 0.05. The analysis concluded that variation at the lower range of needle diameter has no significant effect on the size and morphology of nanofibers. Moreover, it is suggested, for future research, to consider the orientation of fiber alignment and control.

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Effects of sodium hydroxide treatment on microstructure and mechanical properties of lotus fibers

Cited by 13 publications

References 21 publications

Cellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents

Cellulose Production from Sago Frond with Alkaline Delignification and Bleaching on Various Types of Bleach Agents

Effect of micro‐sized luffa cylindrica fibers on the mechanical properties of epoxy epikote 828

A postgraduate experiment: a study of fabricating nanofibers by electrospinning

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