Using Lignin to Modify Starch-Based Adhesive Performance

Unmodified kraft lignin was used to create a starch-based adhesive via the Stein Hall process. Lignin up to 35 wt% was used in several formulations. Lignin was incorporated in both the carrier and slurry portions of the formulations and the effect on adhesive strength and water resistance was studie...

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Bibliographic Details
Published inChemEngineering Vol. 4; no. 1; p. 3
Main Authors Nasiri, Anahita, Wearing, Jim, Dubé, Marc A.
Format Journal Article
LanguageEnglish
Published MDPI AG 01.03.2020
Subjects
Adhesives
Chemical properties
Composition
kraft lignin
Lignin
Starch
starch-based adhesive
stein-hall process
Testing
Canada
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Summary:Unmodified kraft lignin was used to create a starch-based adhesive via the Stein Hall process. Lignin up to 35 wt% was used in several formulations. Lignin was incorporated in both the carrier and slurry portions of the formulations and the effect on adhesive strength and water resistance was studied. The addition of lignin resulted in a significant increase in adhesive strength when the lignin was added solely to the slurry portion. When lignin was added solely to the carrier portion, the adhesive strength decreased. Other formulations, where lignin was present in both the carrier and slurry portions, showed moderate increases in adhesive strength. Finally, the addition of lignin increased the water-resistance of the adhesive bond in the paperboard.
ISSN:2305-7084
2305-7084
DOI:10.3390/chemengineering4010003