A comparison of polyelectrolyte complexes and multilayers: Their adsorption behaviour and use for enhancing tensile strength of paper
2009 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, Vol. 24, no 1, 77-86 p.Article in journal (Refereed) Published
This paper compares the adsorption behaviour and paper-strength-enhancing properties of polyelectrolyte complexes (PECs) and polyelectrolyte multilayers (PEMs) of polyallylamine hydrochloride and polyacrylic acid. Model adsorption experiments using SPAR (stagnation point adsorption reflectometry) and QCM-D (quartz crystal microbalance with dissipation) showed that the amount of complexes adsorbed was lower than the amount adsorbed when forming a multilayer using the same polymer system. From these experiments, in combination with AFM and ESEM imaging, it was concluded that the PEC adsorption stopped before full surface coverage was reached. Tensile testing of handsheets treated with PECs and PEM showed a significant increase in both tensile index and strain-at-break using both systems. The largest strength improvement was achieved with the fibres treated with the largest number of PEMs, but the largest effect per adsorbed amount of polymer was achieved by PEC treatment.
Place, publisher, year, edition, pages
2009. Vol. 24, no 1, 77-86 p.
Adsorption, Fibre modification, Jet mixing, Paper strength, Polyelectrolyte complex, Polyelectrolyte multilayer, QCM-D, SPAR
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-8769DOI: 10.3183/NPPRJ-2009-24-01-p077-086ISI: 000265250200011ScopusID: 2-s2.0-65349186024OAI: oai:DiVA.org:kth-8769DiVA: diva2:14183
QC 20100819. Tidigare titel: A comparison between polyelectrolyte complexes and multilayers: their adsorption behaviour and use for enhancing tensile strength properties of paper.
Correction in: Nordic Pulp & Paper Research Journal, vol. 24, issue. 2, p. 2462008-06-172008-06-172012-05-08Bibliographically approved