Fiber length and bonding effects on tensile strength and toughness of kraft paper

Fiber length and bonding effects on tensile strength and toughness of kraft paper Fiber length and fiber-to-fiber bonding effects on tensile strength and fracture toughness of kraft paper have experimentally been investigated. Laboratory sheets were made from kraft pulp, each with a distinct set of fiber lengths. Additionally, the fiber–fiber bond strength was improved by carboxymethyl (CMC) grafting. The tensile strength and work of fracture toughness results were compared to predictions from a shear-lag model which considers the fiber–fiber bond shear strength, the fiber tensile strength and fiber pull-out work. The tensile strength and fracture work for papers with weak fiber–fiber bonds increased with fiber length consistent with the shear-lag model. CMC-treated fibers provided strong fiber–fiber bonds. Papers made from such fibers displayed high strength and work of fracture independent of fiber length which indicates that the failure process is governed by fiber failures rather than bond failures. The fracture toughness, expressed as the critical value of the J-integral, increased strongly with fiber length for both untreated and CMC-treated papers. The results show that long fibers and CMC addition are extremely beneficial for improving the fracture toughness. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

Fiber length and bonding effects on tensile strength and toughness of kraft paper

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer Science+Business Media, LLC
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
D.O.I.
10.1007/s10853-017-1683-4
Publisher site
See Article on Publisher Site

Abstract

Fiber length and fiber-to-fiber bonding effects on tensile strength and fracture toughness of kraft paper have experimentally been investigated. Laboratory sheets were made from kraft pulp, each with a distinct set of fiber lengths. Additionally, the fiber–fiber bond strength was improved by carboxymethyl (CMC) grafting. The tensile strength and work of fracture toughness results were compared to predictions from a shear-lag model which considers the fiber–fiber bond shear strength, the fiber tensile strength and fiber pull-out work. The tensile strength and fracture work for papers with weak fiber–fiber bonds increased with fiber length consistent with the shear-lag model. CMC-treated fibers provided strong fiber–fiber bonds. Papers made from such fibers displayed high strength and work of fracture independent of fiber length which indicates that the failure process is governed by fiber failures rather than bond failures. The fracture toughness, expressed as the critical value of the J-integral, increased strongly with fiber length for both untreated and CMC-treated papers. The results show that long fibers and CMC addition are extremely beneficial for improving the fracture toughness.

Journal

Journal of Materials Science – Springer Journals

Published: Oct 16, 2017

References

  • Handbook on pulp and papermaking
  • A shear-lag approach to the tensile strength of paper
    Carlsson, LA; Lindstrom, T
  • The elasticity and strength of paper and other fibrous materials
    Cox, HL
  • On the mechanisms behind the ability of CMC to enhance paper strength
    Duker, E; Lindström, T
  • Fracture mechanics
    Ewalds, HL; Wanhill, RJH
  • Wood chemistry, ultrastructure, reactions
    Fengel, D; Wegener, G
  • Factors contributing to the strength of a sheet of paper
    Ingmanson, Wl; Thode, RF
  • Tensile properties of fiber-reinforced metals: copper/tungsten and copper/molybdenum
    Kelly, A; Tyson, WR
  • Interface effects and the work of fracture of a fibrous composite
    Kelly, A
  • Studies on topochemical modification of cellulosic fibres. Part 1. Chemical conditions for the attachment of carboxymethyl cellulose onto fibres
    Laine, J; Lindström, T; Glad-Nordmark, G; Risinger, G
  • Studies on topochemical modification of cellulosic fibres. Part 5. Comparison of the effects of surface and bulk chemical modification and beating of pulp on paper properties
    Laine, J; Lindström, T; Bremberg, C; Glad-Nordmark, G
  • On the nature of joint strength of paper—effect of dry strength agents—revisiting the Page equation
    Lindström, T; Fellers, C; Ankerfors, A; Glad-Nordmark, G
  • A theory for the tensile strength of paper
    Page, DH
  • Mechanical properties of single wood fibers, part V: elastic modulus
    Page, DH; Hosseiny, F; Winkler, K; Lancaster, APS
  • The elastic modulus of paper. I. The controlling mechanism
    Page, DH; Seth, RS; Grace, JH
  • Principles of evaluation for the creep of paperboard in constant and cyclic humidity
    Panek, J; Fellers, C; Haraldsson, T
  • A path independent integral and the approximate analysis of strain concentration by notches and cracks
    Rice, JR
  • A treatise on the elastic and hygroexpansional properties of paper by a composite laminate approach
    Salmen, L; Carlsson, LA; Ruvo, A; Fellers, C; Htun, M
  • Tear and tensile strength of mechanical pulps
    Shallhorn, P; Karnis, A
  • Theory of elasticity
    Timoshenko, SP; Goodier, JN
  • Handbook of physical and mechanical testing of paper and paperboard
    Uesaka, T
  • Some ways to decrease fibre suspension flocculation and improve sheet formation
    Yan, H; Lindström, T; Christiernin, M
  • Fibre length effect on fibre suspension flocculation and sheet formation
    Yan, H; Norman, B; Lindström, T; Ankerfors, M
  • Crack-tip characterization of paper
    Wellmar, P; Fellers, C; Nilsson, F; Delhage, L
  • Fracture toughness of liner board evaluated by the J-integral
    Westerlind, BS; Carlsson, LA; Andersson, YM

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