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Production and properties of adhesives formulated from laccase modified Kraft lignin

Ibrahim, Victor LU ; Mamo, Gashaw LU ; Gustafsson, Per-Johan LU and Hatti-Kaul, Rajni LU (2013) In Industrial Crops and Products 45. p.343-348
Abstract
Kraft lignin was used to formulate adhesives in combination with polyethyleneimine, chitosan and soy protein, respectively. The tensile strengths of bond lines formulated with laccase-treated and untreated lignin were found to be similar. However, a remarkable difference was noted when laccase-treated lignin was reduced by sodium borohydride prior to reacting either with chitosan or soy protein - decreasing the strength in the former case while increasing it in the other. Among the formulations, laccase treated and reduced lignin-soy protein adhesive exhibited more than half the strength of commercial polyurethane adhesive and retained 70% of its initial strength after two cycles of 1 h boiling and drying. (C) 2013 Elsevier B.V. All rights... (More)
Kraft lignin was used to formulate adhesives in combination with polyethyleneimine, chitosan and soy protein, respectively. The tensile strengths of bond lines formulated with laccase-treated and untreated lignin were found to be similar. However, a remarkable difference was noted when laccase-treated lignin was reduced by sodium borohydride prior to reacting either with chitosan or soy protein - decreasing the strength in the former case while increasing it in the other. Among the formulations, laccase treated and reduced lignin-soy protein adhesive exhibited more than half the strength of commercial polyurethane adhesive and retained 70% of its initial strength after two cycles of 1 h boiling and drying. (C) 2013 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Formaldehyde-free adhesive, Lignin, Laccase, Fracture energy, Tensile, strength, Water resistance
in
Industrial Crops and Products
volume
45
pages
343 - 348
publisher
Elsevier
external identifiers
  • wos:000316832000048
  • scopus:84872913758
ISSN
0926-6690
DOI
10.1016/j.indcrop.2012.12.051
language
English
LU publication?
yes
id
400023ea-376e-4b45-aa8c-98380c8373fd (old id 3749483)
date added to LUP
2013-05-21 08:29:53
date last changed
2019-02-27 03:13:01
@article{400023ea-376e-4b45-aa8c-98380c8373fd,
  abstract     = {Kraft lignin was used to formulate adhesives in combination with polyethyleneimine, chitosan and soy protein, respectively. The tensile strengths of bond lines formulated with laccase-treated and untreated lignin were found to be similar. However, a remarkable difference was noted when laccase-treated lignin was reduced by sodium borohydride prior to reacting either with chitosan or soy protein - decreasing the strength in the former case while increasing it in the other. Among the formulations, laccase treated and reduced lignin-soy protein adhesive exhibited more than half the strength of commercial polyurethane adhesive and retained 70% of its initial strength after two cycles of 1 h boiling and drying. (C) 2013 Elsevier B.V. All rights reserved.},
  author       = {Ibrahim, Victor and Mamo, Gashaw and Gustafsson, Per-Johan and Hatti-Kaul, Rajni},
  issn         = {0926-6690},
  keyword      = {Formaldehyde-free adhesive,Lignin,Laccase,Fracture energy,Tensile,strength,Water resistance},
  language     = {eng},
  pages        = {343--348},
  publisher    = {Elsevier},
  series       = {Industrial Crops and Products},
  title        = {Production and properties of adhesives formulated from laccase modified Kraft lignin},
  url          = {http://dx.doi.org/10.1016/j.indcrop.2012.12.051},
  volume       = {45},
  year         = {2013},
}