Lignocellulosic nanofiber prepared by alkali treatment and electrospinning using ionic liquid

Kang, Youngwoong; Ahn, Yongjun; Lee, Sang Hyun; Hong, Joo Hyung; Ku, Min Kyung; Kim, Hyungsup

doi:10.1007/s12221-013-0530-8

Cited by 45 publications

(17 citation statements)

References 29 publications

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“…However, the strength of these composite materials is much lower than that of the materials prepared only from cellulose. In previous reports (Sun et al 2011a;Kang et al 2013), it was reported that alkaline pretreatment of pine and hemp before dissolution could improve the strength and spinnability of the obtained biomass composite materials. To comprehensively understand this improvement, the effect of alkaline pretreatment on preparation process needs to be studied in detail.…”

Section: Introductionmentioning

confidence: 95%

Effect of alkaline pretreatment on the preparation of regenerated lignocellulose fibers from bamboo stem

Chen

Huang

et al. 2016

Cellulose

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In this study, the effect of alkaline pretreatment on preparation of regenerated lignocellulose fibers from bamboo stem was studied in detail. Prior to being dissolved in [Emim]OAc, bamboo stems were ground and treated with different concentrations of sodium hydroxide solutions. The obtained spinning dopes were then extruded into water coagulation bath and regenerated to composite fibers. The properties of the raw materials, spinning dopes, and regenerated fibers were investigated. Results showed that alkaline pretreatment could break the rigid structure of lignocelluloses by removing part of hemicelluloses and lignin as well as changing the polymorphous lattice and C r I of cellulose. The increased specific surface area of raw materials enhanced the accessibility of solvent, promoted the swelling process and shortened the dissolution time. The viscosity of the spinning dopes and the strength of the regenerated fiber reached the maximum value when the bamboo powder was treated with 20 wt% sodium hydroxide at 60°C for 4 h. In addition, the fibers prepared from the alkalitreated raw materials showed round cross-section and wrinkled surface. Therefore, the properties of the regenerated lignocellulose fibers could be improved by employing an appropriate alkali pretreatment of raw materials.

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Section: Introductionmentioning

confidence: 95%

Effect of alkaline pretreatment on the preparation of regenerated lignocellulose fibers from bamboo stem

Chen

Huang

et al. 2016

Cellulose

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“…Natural fibers that come with biodegradable, renewable and friendly environment properties have become promising materials for synthetic fibers substitution [1]. Numerous research has been done to explore natural fibers potential such as the study on ramie, jute fiber sisal fiber and pineapple plant for commercial purposed [2].…”

Section: Introductionmentioning

confidence: 99%

Pineapple Leaf Fibers (PALF)/ Polyethylene Terephthalate (PET) Electrospun Nanofibers: Effect of Ratio on Chemical & Morphological Properties

Surip,

Aziz,

Sekak

2019

IJEAT

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Nanofibers capabilities in produced small materials up to nanoscale dimension, making them the perfect fundamental materials that can help improving the effectiveness of many applications. In this study, the properties of PALF/PET electrospun mats were studied. Different ratio of PALF/PET were electrospin to determine the optimum parameters for fabricating electrospun PALF/PET with minimum defect. The sample obtained were then characterized for its morphology and chemical properties. FTIR studies were done to understand the interaction occurred between PALF and PET with increasing PALF ratio. From the FTIR result, increasing PALF showed similarities spectra with raw PALF peak at 1100cm-1 indicating the influence of PALF in the fibers. This peak did not appear at low PALF content. The obtaining electrospun mats were observed under FESEM to characterize their morphological properties. Increasing in PALF ratio also attributes to the decreasing of size diameter and diameter range. From the result, PALFPET4 shows the smoother morphology with linear properties and smaller average size diameter.

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“…1 The interest in nanofibers from biomass has been gradually increasing worldwide due to their large specific surface areas. 2 The nanofibers act as a fortification substance by increasing the strength and stiffness, as well as decreasing the weight of the resulting composites. 3 Until biomass turns into nanofiller for the composite, the basic methodology followed by researchers consists of the production of nanofibers from biomass first and then the surface modification of the fibers to avoid agglomeration in a nonpolar polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

Simple Manufacture of Surface-Modified Nanolignocellulose Fiber via Vapor-Phase-Assisted Surface Polymerization

2018

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This work tackles the disadvantages in the production of functionalized nanofibers from biomass and offers a new methodology to nanofiber-reinforced composite manufacturing. A vapor-phase-assisted surface polymerization (VASP) method has been used to develop surface-modified lignocellulosic nanofibers. Through the vaporized monomers during polymerization, the polymer chains can be introduced deep within oil palm mesocarp fibers (OPMFs) due to their unique porous structure. After OPMFs are modified with polymer chains, the simple Mortar grinder mill–ionic liquid (M-IL) method provides fibrillation from the macro- to nanoscale, retaining the grafted polymer chains. This approach for the functionalization of biomass could lead to the large-scale fabrication of surface-modified nanofibers for reinforced materials and promote innovative implementations of the renewable biomass resource.

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Lignocellulosic nanofiber prepared by alkali treatment and electrospinning using ionic liquid

Cited by 45 publications

References 29 publications

Effect of alkaline pretreatment on the preparation of regenerated lignocellulose fibers from bamboo stem

Effect of alkaline pretreatment on the preparation of regenerated lignocellulose fibers from bamboo stem

Pineapple Leaf Fibers (PALF)/ Polyethylene Terephthalate (PET) Electrospun Nanofibers: Effect of Ratio on Chemical & Morphological Properties

Simple Manufacture of Surface-Modified Nanolignocellulose Fiber via Vapor-Phase-Assisted Surface Polymerization

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