Foam forming revisited: Part I. Foaming behaviour of fibre-surfactant systems

I. Mira, M. Andersson, L. Boge, I. Blute, G. Carlsson, Kristian Salminen, Timo Lappalainen, Karita Kinnunen

Research output: Contribution to journalArticleScientificpeer-review

18 Citations (Scopus)

Abstract

The foaming properties of typical chemithermo-mechanical (CTMP) and kraft pulp paper making formulations in the presence of a series of surfactants were investigated using a lab-scale foaming set up. Foamability, foam stability, and bubble size distribution of the generated foam-fibre systems were measured. The foaming behaviour of the fibre/surfactant systems was found to be dependent on the surfactant concentration. Foams fulfilling the target requirements of air content (ca. 65% v/v air) and average bubble size (25 to 75 µm in radius) were obtained with all the seven surfactants tested. Three of the surfactants were found to allow for a rapid foaming in the system, namely sodium dodecyl sulphate (SDS), a commercial mixture of alkyl and ethoxylated alkyl sulphates, (MixSAES) and a commercial mixture of short chain alkyl glucosides (C8/C10Gluc). The rapid foaming is believed to be an intrinsic property of mixtures of surfactants with the right molecular structures and in the right proportion with respect to each other. On the other hand, the minimum surfactant concentrations required to reach the target foam volumes were lowest for surfactants with an anionic character. Further, the type of pulp fibre and the presence of GCC in the surfactant/pulp formulation were found to have very little effect on the foaming performance of the suspensions.
Original languageEnglish
Pages (from-to)679-688
Number of pages9
JournalNordic Pulp and Paper Research Journal
Volume29
Issue number4
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Fingerprint

foaming
foams
foam
Surface-Active Agents
surfactants
surfactant
Foams
Surface active agents
Fibers
bubbles
Pulp
bubble
mechanical pulp
pulp fiber
sulfate
Mechanical pulp
fibre
papermaking
kraft pulp
foaming properties

Keywords

  • aqueous foam
  • foam-fibre mixture
  • anionic surfactants
  • non-ionic surfactants
  • foamability
  • foam stability

Cite this

Mira, I. ; Andersson, M. ; Boge, L. ; Blute, I. ; Carlsson, G. ; Salminen, Kristian ; Lappalainen, Timo ; Kinnunen, Karita. / Foam forming revisited : Part I. Foaming behaviour of fibre-surfactant systems. In: Nordic Pulp and Paper Research Journal. 2014 ; Vol. 29, No. 4. pp. 679-688.
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abstract = "The foaming properties of typical chemithermo-mechanical (CTMP) and kraft pulp paper making formulations in the presence of a series of surfactants were investigated using a lab-scale foaming set up. Foamability, foam stability, and bubble size distribution of the generated foam-fibre systems were measured. The foaming behaviour of the fibre/surfactant systems was found to be dependent on the surfactant concentration. Foams fulfilling the target requirements of air content (ca. 65{\%} v/v air) and average bubble size (25 to 75 µm in radius) were obtained with all the seven surfactants tested. Three of the surfactants were found to allow for a rapid foaming in the system, namely sodium dodecyl sulphate (SDS), a commercial mixture of alkyl and ethoxylated alkyl sulphates, (MixSAES) and a commercial mixture of short chain alkyl glucosides (C8/C10Gluc). The rapid foaming is believed to be an intrinsic property of mixtures of surfactants with the right molecular structures and in the right proportion with respect to each other. On the other hand, the minimum surfactant concentrations required to reach the target foam volumes were lowest for surfactants with an anionic character. Further, the type of pulp fibre and the presence of GCC in the surfactant/pulp formulation were found to have very little effect on the foaming performance of the suspensions.",
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author = "I. Mira and M. Andersson and L. Boge and I. Blute and G. Carlsson and Kristian Salminen and Timo Lappalainen and Karita Kinnunen",
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Foam forming revisited : Part I. Foaming behaviour of fibre-surfactant systems. / Mira, I.; Andersson, M.; Boge, L.; Blute, I.; Carlsson, G.; Salminen, Kristian; Lappalainen, Timo; Kinnunen, Karita.

In: Nordic Pulp and Paper Research Journal, Vol. 29, No. 4, 2014, p. 679-688.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Foam forming revisited

T2 - Part I. Foaming behaviour of fibre-surfactant systems

AU - Mira, I.

AU - Andersson, M.

AU - Boge, L.

AU - Blute, I.

AU - Carlsson, G.

AU - Salminen, Kristian

AU - Lappalainen, Timo

AU - Kinnunen, Karita

N1 - Project code: 77866

PY - 2014

Y1 - 2014

N2 - The foaming properties of typical chemithermo-mechanical (CTMP) and kraft pulp paper making formulations in the presence of a series of surfactants were investigated using a lab-scale foaming set up. Foamability, foam stability, and bubble size distribution of the generated foam-fibre systems were measured. The foaming behaviour of the fibre/surfactant systems was found to be dependent on the surfactant concentration. Foams fulfilling the target requirements of air content (ca. 65% v/v air) and average bubble size (25 to 75 µm in radius) were obtained with all the seven surfactants tested. Three of the surfactants were found to allow for a rapid foaming in the system, namely sodium dodecyl sulphate (SDS), a commercial mixture of alkyl and ethoxylated alkyl sulphates, (MixSAES) and a commercial mixture of short chain alkyl glucosides (C8/C10Gluc). The rapid foaming is believed to be an intrinsic property of mixtures of surfactants with the right molecular structures and in the right proportion with respect to each other. On the other hand, the minimum surfactant concentrations required to reach the target foam volumes were lowest for surfactants with an anionic character. Further, the type of pulp fibre and the presence of GCC in the surfactant/pulp formulation were found to have very little effect on the foaming performance of the suspensions.

AB - The foaming properties of typical chemithermo-mechanical (CTMP) and kraft pulp paper making formulations in the presence of a series of surfactants were investigated using a lab-scale foaming set up. Foamability, foam stability, and bubble size distribution of the generated foam-fibre systems were measured. The foaming behaviour of the fibre/surfactant systems was found to be dependent on the surfactant concentration. Foams fulfilling the target requirements of air content (ca. 65% v/v air) and average bubble size (25 to 75 µm in radius) were obtained with all the seven surfactants tested. Three of the surfactants were found to allow for a rapid foaming in the system, namely sodium dodecyl sulphate (SDS), a commercial mixture of alkyl and ethoxylated alkyl sulphates, (MixSAES) and a commercial mixture of short chain alkyl glucosides (C8/C10Gluc). The rapid foaming is believed to be an intrinsic property of mixtures of surfactants with the right molecular structures and in the right proportion with respect to each other. On the other hand, the minimum surfactant concentrations required to reach the target foam volumes were lowest for surfactants with an anionic character. Further, the type of pulp fibre and the presence of GCC in the surfactant/pulp formulation were found to have very little effect on the foaming performance of the suspensions.

KW - aqueous foam

KW - foam-fibre mixture

KW - anionic surfactants

KW - non-ionic surfactants

KW - foamability

KW - foam stability

U2 - 10.3183/NPPRJ-2014-29-04-p679-689

DO - 10.3183/NPPRJ-2014-29-04-p679-689

M3 - Article

VL - 29

SP - 679

EP - 688

JO - Nordic Pulp and Paper Research Journal

JF - Nordic Pulp and Paper Research Journal

SN - 0283-2631

IS - 4

ER -