Dissolved and colloidal substances from mechanical pulp suspensions - stability and flocculation behaviour

Jan Nylund; Olai Lagus; Jarl B. Rosenholm

doi:10.1016/0927-7757(95)03088-3

Dissolved and colloidal substances from mechanical pulp suspensions - stability and flocculation behaviour

Jan Nylund, Olai Lagus, Jarl B. Rosenholm

Laboratory of Molecular Science and Engineering

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

23 Sitaatiot (Scopus)

Abstrakti

The stability of the colloidal material present in unbleached thermomechanical pulp suspensions was investigated. Flocculation was induced with linear cationic polyacrylamides having different charge densities but equal molecular weights. The results indicate that the formation of polyelectrolyte complexes plays an important role in the destabilization of the colloidal particles in the suspension. The properties of the polyelectrolyte complexes formed between dissolved wood polymers and added cationic polyelectrolytes were observed to be dependent on the charge density of the cationic polyelectrolyte. Very large non-stoichiometric polyelectrolyte complexes seemed to be formed. Complex formation on the particle surfaces was found to be of importance for the flocculation and stability behaviour of the colloidal particles. © 1995.

Alkuperäiskieli	Englanti
Sivut	137-146
Sivumäärä	10
Julkaisu	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Vuosikerta	104
Numero	2-3
DOI - pysyväislinkit	https://doi.org/10.1016/0927-7757(95)03088-3
Tila	Julkaistu - 1995
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

Pääsy asiakirjaan

10.1016/0927-7757(95)03088-3

Muut tiedostot ja linkit

https://www.mendeley.com/catalogue/cac360aa-679b-38cc-b665-4c458a7f3a53/

Viittausmuodot

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title = "Dissolved and colloidal substances from mechanical pulp suspensions - stability and flocculation behaviour",

abstract = "The stability of the colloidal material present in unbleached thermomechanical pulp suspensions was investigated. Flocculation was induced with linear cationic polyacrylamides having different charge densities but equal molecular weights. The results indicate that the formation of polyelectrolyte complexes plays an important role in the destabilization of the colloidal particles in the suspension. The properties of the polyelectrolyte complexes formed between dissolved wood polymers and added cationic polyelectrolytes were observed to be dependent on the charge density of the cationic polyelectrolyte. Very large non-stoichiometric polyelectrolyte complexes seemed to be formed. Complex formation on the particle surfaces was found to be of importance for the flocculation and stability behaviour of the colloidal particles. {\textcopyright} 1995.",

keywords = "Charged density, Colloidal stability, Detrimental substances, Mechanical pulp, Polyelectrolyte complex",

author = "Jan Nylund and Olai Lagus and Rosenholm, {Jarl B.}",

year = "1995",

doi = "10.1016/0927-7757(95)03088-3",

language = "English",

volume = "104",

pages = "137--146",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

issn = "0927-7757",

publisher = "Elsevier",

number = "2-3",

}

TY - JOUR

T1 - Dissolved and colloidal substances from mechanical pulp suspensions - stability and flocculation behaviour

AU - Nylund, Jan

AU - Lagus, Olai

AU - Rosenholm, Jarl B.

PY - 1995

Y1 - 1995

N2 - The stability of the colloidal material present in unbleached thermomechanical pulp suspensions was investigated. Flocculation was induced with linear cationic polyacrylamides having different charge densities but equal molecular weights. The results indicate that the formation of polyelectrolyte complexes plays an important role in the destabilization of the colloidal particles in the suspension. The properties of the polyelectrolyte complexes formed between dissolved wood polymers and added cationic polyelectrolytes were observed to be dependent on the charge density of the cationic polyelectrolyte. Very large non-stoichiometric polyelectrolyte complexes seemed to be formed. Complex formation on the particle surfaces was found to be of importance for the flocculation and stability behaviour of the colloidal particles. © 1995.

AB - The stability of the colloidal material present in unbleached thermomechanical pulp suspensions was investigated. Flocculation was induced with linear cationic polyacrylamides having different charge densities but equal molecular weights. The results indicate that the formation of polyelectrolyte complexes plays an important role in the destabilization of the colloidal particles in the suspension. The properties of the polyelectrolyte complexes formed between dissolved wood polymers and added cationic polyelectrolytes were observed to be dependent on the charge density of the cationic polyelectrolyte. Very large non-stoichiometric polyelectrolyte complexes seemed to be formed. Complex formation on the particle surfaces was found to be of importance for the flocculation and stability behaviour of the colloidal particles. © 1995.

KW - Charged density

KW - Colloidal stability

KW - Detrimental substances

KW - Mechanical pulp

KW - Polyelectrolyte complex

UR - https://www.mendeley.com/catalogue/cac360aa-679b-38cc-b665-4c458a7f3a53/

U2 - 10.1016/0927-7757(95)03088-3

DO - 10.1016/0927-7757(95)03088-3

M3 - Article

SN - 0927-7757

VL - 104

SP - 137

EP - 146

JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects

JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects

IS - 2-3

ER -

Dissolved and colloidal substances from mechanical pulp suspensions - stability and flocculation behaviour

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