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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13352
Title: Sizing performance of alkenyl succinic anhydride (ASA) emulsion stabilized by polyvinylamine macromolecules
Authors: Kumar A.
Bhardwaj N.K.
Singh S.P.
Published in: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Abstract: It is well known that alkenyl succinic anhydride (ASA), an alkaline sizing agent, when applied to cellulosic fibers will impart a resistance to the absorption of water. High reactivity of ASA to cellulosic fiber compared to that of alkyl ketene dimer (AKD) is the main advantage of ASA sizing. However, there are some drawbacks associated with the ASA sizing viz. poor stability of ASA emulsion and formation of stickies and deposits as a result of hydrolyzed ASA. Present study deals with the stability of ASA emulsions prepared by using synthetic vinylamine polymers of different colloidal charge as alternate to conventionally used cationic starch and sizing performance using mixed hardwood kraft pulp furnish. The better colloidal stability and sizing performance with polyvinylamines compared to cationic starch was due to the coverage of the ASA droplets with polyvinylamines which extends in to the continuous phase of ASA emulsion. Emulsion stability was achieved even with low dosage of vinylamine polymer. © 2017 Elsevier B.V.
Citation: Colloids and Surfaces A: Physicochemical and Engineering Aspects (2018), 539(): 132-139
URI: https://doi.org/10.1016/j.colsurfa.2017.12.014
http://repository.iitr.ac.in/handle/123456789/13352
Issue Date: 2018
Publisher: Elsevier B.V.
Keywords: Alkaline sizing
Alkenyl succinic anhydride
Cationic starch
Cobb60
Contact angle
PVAm
ISSN: 9277757
Author Scopus IDs: 55628573312
55954738000
7407864677
Author Affiliations: Kumar, A., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India, Avantha Centre for Industrial Research & Development, Yamuna Nagar, 135001, India
Bhardwaj, N.K., Avantha Centre for Industrial Research & Development, Yamuna Nagar, 135001, India
Singh, S.P., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Corresponding Author: Bhardwaj, N.K.; Avantha Centre for Industrial Research & DevelopmentIndia; email: bhardwaj@avantharesearch.org
Appears in Collections:Journal Publications [PT]

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