Cross-linking of cellulose nanofiber films with glutaraldehyde for improved mechanical properties

Jei Gyeong Jeon; Hyun Chan Kim; Ramasubba Reddy Palem; Jaehwan Kim; Tae June Kang

doi:10.1016/j.matlet.2019.05.002

Cross-linking of cellulose nanofiber films with glutaraldehyde for improved mechanical properties

Jei Gyeong Jeon
, Hyun Chan Kim
, Ramasubba Reddy Palem
, Jaehwan Kim
, Tae June Kang

Department of Biomedical Engineering

Inha University

Research output: Contribution to journal › Article › peer-review

73 Scopus citations

Abstract

In this work, we present a method to improve the mechanical properties of CNF films by replacing the secondary hydrogen bonding in CNF films with glutaraldehyde (GA)-based covalent bonds using acidic catalysts. The CNF film treated with GA exhibits ∼180% higher tensile strength than that for the untreated CNF film. In terms of the elastic modulus, the film shows a value of 12.3 GPa, which is ∼160% higher compared to the untreated CNF film. Using Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses on the films, it was found that the mechanical properties of the GA-treated films were significantly affected by the relationship between the degree of GA cross-linking and the reduction in the crystallinity index of the CNFs.

Original language	English
Pages (from-to)	99-102
Number of pages	4
Journal	Materials Letters
Volume	250
DOIs	https://doi.org/10.1016/j.matlet.2019.05.002
State	Published - 1 Sep 2019

Keywords

Cellulose nanofiber
Glutaraldehyde
Mechanical property
Thin films

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10.1016/j.matlet.2019.05.002

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title = "Cross-linking of cellulose nanofiber films with glutaraldehyde for improved mechanical properties",

abstract = "In this work, we present a method to improve the mechanical properties of CNF films by replacing the secondary hydrogen bonding in CNF films with glutaraldehyde (GA)-based covalent bonds using acidic catalysts. The CNF film treated with GA exhibits ∼180\% higher tensile strength than that for the untreated CNF film. In terms of the elastic modulus, the film shows a value of 12.3 GPa, which is ∼160\% higher compared to the untreated CNF film. Using Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses on the films, it was found that the mechanical properties of the GA-treated films were significantly affected by the relationship between the degree of GA cross-linking and the reduction in the crystallinity index of the CNFs.",

keywords = "Cellulose nanofiber, Glutaraldehyde, Mechanical property, Thin films",

author = "Jeon, \{Jei Gyeong\} and Kim, \{Hyun Chan\} and Palem, \{Ramasubba Reddy\} and Jaehwan Kim and Kang, \{Tae June\}",

note = "Publisher Copyright: {\textcopyright} 2019",

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doi = "10.1016/j.matlet.2019.05.002",

language = "English",

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journal = "Materials Letters",

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TY - JOUR

T1 - Cross-linking of cellulose nanofiber films with glutaraldehyde for improved mechanical properties

AU - Jeon, Jei Gyeong

AU - Kim, Hyun Chan

AU - Palem, Ramasubba Reddy

AU - Kim, Jaehwan

AU - Kang, Tae June

PY - 2019/9/1

Y1 - 2019/9/1

N2 - In this work, we present a method to improve the mechanical properties of CNF films by replacing the secondary hydrogen bonding in CNF films with glutaraldehyde (GA)-based covalent bonds using acidic catalysts. The CNF film treated with GA exhibits ∼180% higher tensile strength than that for the untreated CNF film. In terms of the elastic modulus, the film shows a value of 12.3 GPa, which is ∼160% higher compared to the untreated CNF film. Using Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses on the films, it was found that the mechanical properties of the GA-treated films were significantly affected by the relationship between the degree of GA cross-linking and the reduction in the crystallinity index of the CNFs.

AB - In this work, we present a method to improve the mechanical properties of CNF films by replacing the secondary hydrogen bonding in CNF films with glutaraldehyde (GA)-based covalent bonds using acidic catalysts. The CNF film treated with GA exhibits ∼180% higher tensile strength than that for the untreated CNF film. In terms of the elastic modulus, the film shows a value of 12.3 GPa, which is ∼160% higher compared to the untreated CNF film. Using Fourier transform infrared (FTIR) and X-ray diffraction (XRD) analyses on the films, it was found that the mechanical properties of the GA-treated films were significantly affected by the relationship between the degree of GA cross-linking and the reduction in the crystallinity index of the CNFs.

KW - Cellulose nanofiber

KW - Glutaraldehyde

KW - Mechanical property

KW - Thin films

UR - https://www.scopus.com/pages/publications/85065083234

U2 - 10.1016/j.matlet.2019.05.002

DO - 10.1016/j.matlet.2019.05.002

M3 - Article

AN - SCOPUS:85065083234

SN - 0167-577X

VL - 250

SP - 99

EP - 102

JO - Materials Letters

JF - Materials Letters

ER -

Cross-linking of cellulose nanofiber films with glutaraldehyde for improved mechanical properties

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Keywords

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