TY - JOUR
T1 - Lignin and lignin derivatives as components in biobased hot melt adhesives
AU - Laine, Christiane
AU - Willberg-Keyriläinen, Pia
AU - Ropponen, Jarmo
AU - Liitiä, Tiina
N1 - Funding Information:
This work was performed through project ReWoBioRef of the ERA-NET Plus initiative Wood Wisdom-Net, which was funded by Tekes, the Finnish Funding Agency for Innovation (contract grant number 3869/31/2013). The skillful work of technicians Eija Silvasti and Liisa Änäkäinen in the compounding and gluing experiments and of research scientist Atte Mikkelson in lignin characterization is acknowledged.
Publisher Copyright:
© 2019 Wiley Periodicals, Inc.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/10/10
Y1 - 2019/10/10
N2 - Hot melt adhesives (HMAs) are formulated for the first time with different lignins as major components, and the developed HMA formulations were tested for gluing paperboard. The best formulations showed equal or even better bond strength compared to a commercial HMA reference. A maximum bond strength of 16.1 N was achieved with a formulation of oxidized cellulose acetate, organosolv lignin, and triethyl citrate, whereas the bond strength of the commercial HMA reference was 10.5 N. The performance was adjusted via the selection of lignin, the formulation, and chemical modification. Lignin modification was not necessary but provided further possibilities for adjusting the properties for different products (reversible vs irreversible adhesive seams) and also for producing plasticizer-free formulations. Modification with tall oil fatty acids enabled the formulation of fully biobased HMAs without any external plasticizer and provided a bond strength as high as high as 8.9 N.
AB - Hot melt adhesives (HMAs) are formulated for the first time with different lignins as major components, and the developed HMA formulations were tested for gluing paperboard. The best formulations showed equal or even better bond strength compared to a commercial HMA reference. A maximum bond strength of 16.1 N was achieved with a formulation of oxidized cellulose acetate, organosolv lignin, and triethyl citrate, whereas the bond strength of the commercial HMA reference was 10.5 N. The performance was adjusted via the selection of lignin, the formulation, and chemical modification. Lignin modification was not necessary but provided further possibilities for adjusting the properties for different products (reversible vs irreversible adhesive seams) and also for producing plasticizer-free formulations. Modification with tall oil fatty acids enabled the formulation of fully biobased HMAs without any external plasticizer and provided a bond strength as high as high as 8.9 N.
KW - adhesives
KW - biopolymers and renewable polymers
KW - cellulose and other wood products
KW - thermoplastics
UR - http://www.scopus.com/inward/record.url?scp=85066091752&partnerID=8YFLogxK
U2 - 10.1002/app.47983
DO - 10.1002/app.47983
M3 - Article
AN - SCOPUS:85066091752
SN - 0021-8995
VL - 136
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
IS - 38
M1 - 47983
ER -
