All-cellulose composites from alfa and wood fibers

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All-cellulose composites from alfa and wood fibers. / Labidi, Khaled; Korhonen, Oona; Zrida, Montassar; Hamzaoui, Ahmed Hichem; Budtova, Tatiana.

In: Industrial Crops and Products, Vol. 127, 01.01.2019, p. 135-141.

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Labidi, Khaled ; Korhonen, Oona ; Zrida, Montassar ; Hamzaoui, Ahmed Hichem ; Budtova, Tatiana. / All-cellulose composites from alfa and wood fibers. In: Industrial Crops and Products. 2019 ; Vol. 127. pp. 135-141.

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@article{e96ab610d010429193e16d8e3d82ecf1,
title = "All-cellulose composites from alfa and wood fibers",
abstract = "All-cellulose composites (ACCs) in which both matrices and reinforcing fibers are made from lignocellulose were successfully obtained from alfa (Stipa tenacissima L) and wood (Genus Betula) fibers. Matrices were prepared either from alfa or wood pulps that were dissolved in 8 wt{\%} NaOH-water, while reinforcing fibers were alfa in both matrices. Prior to the dissolution, alfa and wood pulps were acid hydrolyzed in order to decrease cellulose degree of polymerization to 149 and 145, respectively. The degree of cellulose dissolution was 95–96{\%} for both alfa and wood dissolving pulps. X-ray diffraction (XRD) analysis confirmed the coexistence of cellulose I and II. The adhesion between the reinforcing fibers and both matrices was investigated using Scanning Electron Microscopy (SEM) and was found to be excellent. The density of ACCs decreased with the increase of the reinforcing fiber content for both types of matrices and ranged from 0.6 to 1.0 g.cm−3 leading to remarkably low-density ACCs. Young's modulus reached 3.8 and 4.2 GPa for the composites based on alfa and wood dissolving pulps, respectively, while yield stress reached 16 and 13.9 MPa, respectively.",
keywords = "Alfa fiber, All-cellulose composite, Density, Mechanical properties, Stipa Tenacissima, Wood fiber",
author = "Khaled Labidi and Oona Korhonen and Montassar Zrida and Hamzaoui, {Ahmed Hichem} and Tatiana Budtova",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.indcrop.2018.10.055",
language = "English",
volume = "127",
pages = "135--141",
journal = "Industrial Crops and Products",
issn = "0926-6690",
publisher = "Elsevier",

}

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TY - JOUR

T1 - All-cellulose composites from alfa and wood fibers

AU - Labidi, Khaled

AU - Korhonen, Oona

AU - Zrida, Montassar

AU - Hamzaoui, Ahmed Hichem

AU - Budtova, Tatiana

PY - 2019/1/1

Y1 - 2019/1/1

N2 - All-cellulose composites (ACCs) in which both matrices and reinforcing fibers are made from lignocellulose were successfully obtained from alfa (Stipa tenacissima L) and wood (Genus Betula) fibers. Matrices were prepared either from alfa or wood pulps that were dissolved in 8 wt% NaOH-water, while reinforcing fibers were alfa in both matrices. Prior to the dissolution, alfa and wood pulps were acid hydrolyzed in order to decrease cellulose degree of polymerization to 149 and 145, respectively. The degree of cellulose dissolution was 95–96% for both alfa and wood dissolving pulps. X-ray diffraction (XRD) analysis confirmed the coexistence of cellulose I and II. The adhesion between the reinforcing fibers and both matrices was investigated using Scanning Electron Microscopy (SEM) and was found to be excellent. The density of ACCs decreased with the increase of the reinforcing fiber content for both types of matrices and ranged from 0.6 to 1.0 g.cm−3 leading to remarkably low-density ACCs. Young's modulus reached 3.8 and 4.2 GPa for the composites based on alfa and wood dissolving pulps, respectively, while yield stress reached 16 and 13.9 MPa, respectively.

AB - All-cellulose composites (ACCs) in which both matrices and reinforcing fibers are made from lignocellulose were successfully obtained from alfa (Stipa tenacissima L) and wood (Genus Betula) fibers. Matrices were prepared either from alfa or wood pulps that were dissolved in 8 wt% NaOH-water, while reinforcing fibers were alfa in both matrices. Prior to the dissolution, alfa and wood pulps were acid hydrolyzed in order to decrease cellulose degree of polymerization to 149 and 145, respectively. The degree of cellulose dissolution was 95–96% for both alfa and wood dissolving pulps. X-ray diffraction (XRD) analysis confirmed the coexistence of cellulose I and II. The adhesion between the reinforcing fibers and both matrices was investigated using Scanning Electron Microscopy (SEM) and was found to be excellent. The density of ACCs decreased with the increase of the reinforcing fiber content for both types of matrices and ranged from 0.6 to 1.0 g.cm−3 leading to remarkably low-density ACCs. Young's modulus reached 3.8 and 4.2 GPa for the composites based on alfa and wood dissolving pulps, respectively, while yield stress reached 16 and 13.9 MPa, respectively.

KW - Alfa fiber

KW - All-cellulose composite

KW - Density

KW - Mechanical properties

KW - Stipa Tenacissima

KW - Wood fiber

UR - http://www.scopus.com/inward/record.url?scp=85055731490&partnerID=8YFLogxK

U2 - 10.1016/j.indcrop.2018.10.055

DO - 10.1016/j.indcrop.2018.10.055

M3 - Article

VL - 127

SP - 135

EP - 141

JO - Industrial Crops and Products

JF - Industrial Crops and Products

SN - 0926-6690

ER -

ID: 29456478