Lignin and lignin derivatives as components in biobased hot melt adhesives

Christiane Laine; Pia Willberg-Keyriläinen; Jarmo Ropponen; Tiina Liitiä

doi:10.1002/app.47983

Lignin and lignin derivatives as components in biobased hot melt adhesives

Christiane Laine^*
, Pia Willberg-Keyriläinen
, Jarmo Ropponen
, Tiina Liitiä

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

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.

Original language	English
Article number	47983
Journal	Journal of Applied Polymer Science
Volume	136
Issue number	38
Early online date	1 Jan 2019
DOIs	https://doi.org/10.1002/app.47983
Publication status	Published - 10 Oct 2019
MoE publication type	A1 Journal article-refereed

Keywords

adhesives
biopolymers and renewable polymers
cellulose and other wood products
thermoplastics

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10.1002/app.47983

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title = "Lignin and lignin derivatives as components in biobased hot melt adhesives",

abstract = "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.",

keywords = "adhesives, biopolymers and renewable polymers, cellulose and other wood products, thermoplastics",

author = "Christiane Laine and Pia Willberg-Keyril{\"a}inen and Jarmo Ropponen and Tiina Liiti{\"a}",

note = "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 {\"A}n{\"a}k{\"a}inen in the compounding and gluing experiments and of research scientist Atte Mikkelson in lignin characterization is acknowledged. Publisher Copyright: {\textcopyright} 2019 Wiley Periodicals, Inc. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

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doi = "10.1002/app.47983",

language = "English",

volume = "136",

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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.

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KW - biopolymers and renewable polymers

KW - cellulose and other wood products

KW - thermoplastics

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JO - Journal of Applied Polymer Science

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ER -

Lignin and lignin derivatives as components in biobased hot melt adhesives

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