Effect of cellulose microfibril (CMF) addition on strength properties of middle ply of board

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Cellulose microfibrils (CMF) are a promising biobased material with unique nanospecific properties, giving them potential for use in numerous applications. Based on this, cost-effective and novel high-consistency enzymatic fibrillation (HefCel) technology was used to produce CMF, which was further used to reinforce middle ply of board structure and the results compared with those obtained without CMF addition and with addition of CMF produced by traditional Masuko grinding (VTT Native grade). The results showed an average increase in tensile index of middle ply of board of approximately 50% with VTT Native grade and approximately 15% with HefCel grade at 3% CMF dosage. According to special board measurements, ~100% improvement in Scott bond, ~117% improvement in Z-directional strength, as well as ~13% improvement in bending stiffness were achieved with VTT Native grade compared with the reference case, while addition of HefCel resulted in improvements of ~35% in Scott bond, ~40% in Z-directional strength, and ~20% in bending stiffness. Addition of HefCel CMF generated a bulkier handsheet structure compared with VTT Native CMF, which had a direct impact on the bending stiffness. The differences in the strengthening effect between HefCel CMF and VTT Native CMF are most probably due to the fibril morphology; VTT Native CMF with long and flexible fibrils provided tensile strength, while HefCel CMF consisting of short fibrils had a more substantial impact on the bending stiffness. The bending stiffness is one of the most important characteristics in board applications, indicating that HefCel CMF has potential for use as a reinforcement material in packaging applications.
Original languageEnglish
Pages (from-to)1041-1055
Number of pages15
JournalCellulose
Volume24
Issue number2
DOIs
Publication statusPublished - 1 Feb 2017
MoE publication typeA1 Journal article-refereed

Fingerprint

Cellulose
Stiffness
Bending (forming)
Packaging
Reinforcement
Tensile strength

Keywords

  • cellulose microfibrils
  • cost-effective production
  • packaging
  • reinforcement material
  • strength additive

Cite this

@article{b8a7c2ea134e409f8b3604931d994c61,
title = "Effect of cellulose microfibril (CMF) addition on strength properties of middle ply of board",
abstract = "Cellulose microfibrils (CMF) are a promising biobased material with unique nanospecific properties, giving them potential for use in numerous applications. Based on this, cost-effective and novel high-consistency enzymatic fibrillation (HefCel) technology was used to produce CMF, which was further used to reinforce middle ply of board structure and the results compared with those obtained without CMF addition and with addition of CMF produced by traditional Masuko grinding (VTT Native grade). The results showed an average increase in tensile index of middle ply of board of approximately 50{\%} with VTT Native grade and approximately 15{\%} with HefCel grade at 3{\%} CMF dosage. According to special board measurements, ~100{\%} improvement in Scott bond, ~117{\%} improvement in Z-directional strength, as well as ~13{\%} improvement in bending stiffness were achieved with VTT Native grade compared with the reference case, while addition of HefCel resulted in improvements of ~35{\%} in Scott bond, ~40{\%} in Z-directional strength, and ~20{\%} in bending stiffness. Addition of HefCel CMF generated a bulkier handsheet structure compared with VTT Native CMF, which had a direct impact on the bending stiffness. The differences in the strengthening effect between HefCel CMF and VTT Native CMF are most probably due to the fibril morphology; VTT Native CMF with long and flexible fibrils provided tensile strength, while HefCel CMF consisting of short fibrils had a more substantial impact on the bending stiffness. The bending stiffness is one of the most important characteristics in board applications, indicating that HefCel CMF has potential for use as a reinforcement material in packaging applications.",
keywords = "cellulose microfibrils, cost-effective production, packaging, reinforcement material, strength additive",
author = "Jani Lehmonen and Jaakko Pere and Eemeli Hyt{\"o}nen and Heli Kangas",
note = "ISI: MATERIALS SCIENCE, PAPER & WOOD",
year = "2017",
month = "2",
day = "1",
doi = "10.1007/s10570-016-1146-0",
language = "English",
volume = "24",
pages = "1041--1055",
journal = "Cellulose",
issn = "0969-0239",
publisher = "Springer",
number = "2",

}

Effect of cellulose microfibril (CMF) addition on strength properties of middle ply of board. / Lehmonen, Jani; Pere, Jaakko; Hytönen, Eemeli; Kangas, Heli (Corresponding Author).

In: Cellulose, Vol. 24, No. 2, 01.02.2017, p. 1041-1055.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effect of cellulose microfibril (CMF) addition on strength properties of middle ply of board

AU - Lehmonen, Jani

AU - Pere, Jaakko

AU - Hytönen, Eemeli

AU - Kangas, Heli

N1 - ISI: MATERIALS SCIENCE, PAPER & WOOD

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Cellulose microfibrils (CMF) are a promising biobased material with unique nanospecific properties, giving them potential for use in numerous applications. Based on this, cost-effective and novel high-consistency enzymatic fibrillation (HefCel) technology was used to produce CMF, which was further used to reinforce middle ply of board structure and the results compared with those obtained without CMF addition and with addition of CMF produced by traditional Masuko grinding (VTT Native grade). The results showed an average increase in tensile index of middle ply of board of approximately 50% with VTT Native grade and approximately 15% with HefCel grade at 3% CMF dosage. According to special board measurements, ~100% improvement in Scott bond, ~117% improvement in Z-directional strength, as well as ~13% improvement in bending stiffness were achieved with VTT Native grade compared with the reference case, while addition of HefCel resulted in improvements of ~35% in Scott bond, ~40% in Z-directional strength, and ~20% in bending stiffness. Addition of HefCel CMF generated a bulkier handsheet structure compared with VTT Native CMF, which had a direct impact on the bending stiffness. The differences in the strengthening effect between HefCel CMF and VTT Native CMF are most probably due to the fibril morphology; VTT Native CMF with long and flexible fibrils provided tensile strength, while HefCel CMF consisting of short fibrils had a more substantial impact on the bending stiffness. The bending stiffness is one of the most important characteristics in board applications, indicating that HefCel CMF has potential for use as a reinforcement material in packaging applications.

AB - Cellulose microfibrils (CMF) are a promising biobased material with unique nanospecific properties, giving them potential for use in numerous applications. Based on this, cost-effective and novel high-consistency enzymatic fibrillation (HefCel) technology was used to produce CMF, which was further used to reinforce middle ply of board structure and the results compared with those obtained without CMF addition and with addition of CMF produced by traditional Masuko grinding (VTT Native grade). The results showed an average increase in tensile index of middle ply of board of approximately 50% with VTT Native grade and approximately 15% with HefCel grade at 3% CMF dosage. According to special board measurements, ~100% improvement in Scott bond, ~117% improvement in Z-directional strength, as well as ~13% improvement in bending stiffness were achieved with VTT Native grade compared with the reference case, while addition of HefCel resulted in improvements of ~35% in Scott bond, ~40% in Z-directional strength, and ~20% in bending stiffness. Addition of HefCel CMF generated a bulkier handsheet structure compared with VTT Native CMF, which had a direct impact on the bending stiffness. The differences in the strengthening effect between HefCel CMF and VTT Native CMF are most probably due to the fibril morphology; VTT Native CMF with long and flexible fibrils provided tensile strength, while HefCel CMF consisting of short fibrils had a more substantial impact on the bending stiffness. The bending stiffness is one of the most important characteristics in board applications, indicating that HefCel CMF has potential for use as a reinforcement material in packaging applications.

KW - cellulose microfibrils

KW - cost-effective production

KW - packaging

KW - reinforcement material

KW - strength additive

UR - http://www.scopus.com/inward/record.url?scp=85000460091&partnerID=8YFLogxK

U2 - 10.1007/s10570-016-1146-0

DO - 10.1007/s10570-016-1146-0

M3 - Article

VL - 24

SP - 1041

EP - 1055

JO - Cellulose

JF - Cellulose

SN - 0969-0239

IS - 2

ER -