Self-assembly of alkyl chains of fatty acids in papermaking systems: A review of related pitch issues, hydrophobic sizing, and pH effects

Martin A. Hubbe*, Douglas S. McLean, Karen R. Stack, Xiaomin Lu, Anders Strand, Anna Sundberg

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragÖversiktsartikelPeer review

1 Citeringar (Scopus)

Sammanfattning

This review article considers the role of fatty acids and the mutual association of their long-chain (e.g. C18) alkyl and alkenyl groups in some important aspects of papermaking. In particular, published findings suggest that interactions involving fatty acids present as condensed monolayer films can play a controlling role in pitch deposition problems. Self-association among the tails of fatty acids and their soaps also helps to explain some puzzling aspects of hydrophobic sizing of paper. When fatty acids and their soaps are present as monolayers in papermaking systems, the pH values associated with their dissociation, i.e. their pKa values, tend to be strongly shifted. Mutual association also appears to favor non-equilibrium multilayer structures that are tacky and insoluble, possibly serving as a nucleus for deposition of wood extractives, such, as resins and triglyceride fats, in pulp and paper systems.
OriginalspråkEngelska
Sidor (från-till)4591-4635
TidskriftBioResources
Volym15
Utgåva2
DOI
StatusPublicerad - 2020
MoE-publikationstypA2 Granska artikel i en vetenskaplig tidskrift

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