Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM

Per Stenius, Krista Koljonen

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

3 Citations (Scopus)

Abstract

The surfaces of pressure groundwood (PGW), thermomechanical pulp (TMP), and chemithermomechanical pulp (CTMP) were studied by atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS), contact angle measurement, and polyelectrolyte adsorption. The combination of these methods yielded a comprehensive picture of the chemistry, adhesive properties and morphology of the fiber surfaces and how they were affected by washing, peroxide bleaching, dithionite bleaching, and ozone treatment. Overall, the fiber surfaces were found to be very heterogeneous. Sulfite treatment in the production of CTMP pulp, peroxide bleaching under alkaline conditions, and ozone treatment modified especially the lignin and/or the pectins so that more acidic groups were introduced into the pulps. The adhesion between water and fibers increased when hydrophobic extractives (pitch) were removed by extraction with dichloromethane.
Original languageEnglish
Title of host publicationCharacterization of Lignocellulosic Materials
PublisherWiley-Blackwell
Chapter3
Pages36-59
ISBN (Electronic)978-1-4443-0542-5
ISBN (Print)978-1-4051-5880-0
DOIs
Publication statusPublished - 2008
MoE publication typeA3 Part of a book or another research book

Fingerprint

Mechanical pulp
Angle measurement
Photoelectron spectroscopy
Polyelectrolytes
Contact angle
Pulp
Atomic force microscopy
Bleaching
Adsorption
X rays
Fibers
Ozone
Peroxides
Pectins
Thermomechanical pulp
Dithionite
Sulfites
Lignin
Methylene Chloride
Washing

Cite this

Stenius, P., & Koljonen, K. (2008). Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM. In Characterization of Lignocellulosic Materials (pp. 36-59). Wiley-Blackwell. https://doi.org/10.1002/9781444305425.ch3
Stenius, Per ; Koljonen, Krista. / Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM. Characterization of Lignocellulosic Materials. Wiley-Blackwell, 2008. pp. 36-59
@inbook{6848822b705d4dd3af709e1e7a312bac,
title = "Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM",
abstract = "The surfaces of pressure groundwood (PGW), thermomechanical pulp (TMP), and chemithermomechanical pulp (CTMP) were studied by atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS), contact angle measurement, and polyelectrolyte adsorption. The combination of these methods yielded a comprehensive picture of the chemistry, adhesive properties and morphology of the fiber surfaces and how they were affected by washing, peroxide bleaching, dithionite bleaching, and ozone treatment. Overall, the fiber surfaces were found to be very heterogeneous. Sulfite treatment in the production of CTMP pulp, peroxide bleaching under alkaline conditions, and ozone treatment modified especially the lignin and/or the pectins so that more acidic groups were introduced into the pulps. The adhesion between water and fibers increased when hydrophobic extractives (pitch) were removed by extraction with dichloromethane.",
author = "Per Stenius and Krista Koljonen",
year = "2008",
doi = "10.1002/9781444305425.ch3",
language = "English",
isbn = "978-1-4051-5880-0",
pages = "36--59",
booktitle = "Characterization of Lignocellulosic Materials",
publisher = "Wiley-Blackwell",
address = "United States",

}

Stenius, P & Koljonen, K 2008, Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM. in Characterization of Lignocellulosic Materials. Wiley-Blackwell, pp. 36-59. https://doi.org/10.1002/9781444305425.ch3

Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM. / Stenius, Per; Koljonen, Krista.

Characterization of Lignocellulosic Materials. Wiley-Blackwell, 2008. p. 36-59.

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

TY - CHAP

T1 - Surface Characterization of Mechanical Pulp Fibers by Contact Angle Measurement, Polyelectrolyte Adsorption, XPS and AFM

AU - Stenius, Per

AU - Koljonen, Krista

PY - 2008

Y1 - 2008

N2 - The surfaces of pressure groundwood (PGW), thermomechanical pulp (TMP), and chemithermomechanical pulp (CTMP) were studied by atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS), contact angle measurement, and polyelectrolyte adsorption. The combination of these methods yielded a comprehensive picture of the chemistry, adhesive properties and morphology of the fiber surfaces and how they were affected by washing, peroxide bleaching, dithionite bleaching, and ozone treatment. Overall, the fiber surfaces were found to be very heterogeneous. Sulfite treatment in the production of CTMP pulp, peroxide bleaching under alkaline conditions, and ozone treatment modified especially the lignin and/or the pectins so that more acidic groups were introduced into the pulps. The adhesion between water and fibers increased when hydrophobic extractives (pitch) were removed by extraction with dichloromethane.

AB - The surfaces of pressure groundwood (PGW), thermomechanical pulp (TMP), and chemithermomechanical pulp (CTMP) were studied by atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS), contact angle measurement, and polyelectrolyte adsorption. The combination of these methods yielded a comprehensive picture of the chemistry, adhesive properties and morphology of the fiber surfaces and how they were affected by washing, peroxide bleaching, dithionite bleaching, and ozone treatment. Overall, the fiber surfaces were found to be very heterogeneous. Sulfite treatment in the production of CTMP pulp, peroxide bleaching under alkaline conditions, and ozone treatment modified especially the lignin and/or the pectins so that more acidic groups were introduced into the pulps. The adhesion between water and fibers increased when hydrophobic extractives (pitch) were removed by extraction with dichloromethane.

U2 - 10.1002/9781444305425.ch3

DO - 10.1002/9781444305425.ch3

M3 - Chapter or book article

SN - 978-1-4051-5880-0

SP - 36

EP - 59

BT - Characterization of Lignocellulosic Materials

PB - Wiley-Blackwell

ER -