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Novel paper sizing agents from renewables. Part 3: Emulsion stability and hydrolysis behavior compared to conventional sizes
-
Elisabeth Lackinger
,
Akira Isogai
Published/Copyright:
December 10, 2010
Abstract
The hydrolytic stability and sizing behavior of a new paper sizing agent based on renewable vegetable oils (maleated sunflower oil, high oleic: MSOHO) was compared to two conventional alkenyl succinic anhydride (ASA) specimens, a commercial sample, and a reagent-grade ASA sample. At various pH conditions as well as upon addition of Ca2+ ions, MSOHO was more stable than both ASA samples. This superior stability of MSOHO was also supported by zeta potential measurements over 1 week. Whereas for sizing of paper higher dosages of MSOHO were needed to gain certain water repellency as compared to the ASA samples, the addition of alum had a pronounced positive effect on the sizing efficiency of MSOHO. The higher stability of MSOHO made it possible to size with an MSOHO-starch emulsion that was aged for one day at room temperature, when conventional ASA-starch emulsion had long lost any sizing efficiency.
Keywords: alkenyl succinic anhydride (ASA); ASA sizing; emulsion stability; green chemistry; high oleic sunflower oil; hydrolysis; maleated oils; paper sizing; plant oils
Received: 2010-6-8
Accepted: 2010-9-3
Published Online: 2010-12-10
Published in Print: 2011-01-01
©2011 by Walter de Gruyter Berlin New York
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Keywords for this article
alkenyl succinic anhydride (ASA);
ASA sizing;
emulsion stability;
green chemistry;
high oleic sunflower oil;
hydrolysis;
maleated oils;
paper sizing;
plant oils
Articles in the same Issue
- Publisher's Note
- Publisher's Note
- Original papers
- Novel paper sizing agents from renewables. Part 1: Preparation of a paper sizing agent derived from natural plant oils
- Novel paper sizing agents from renewables. Part 2: Characterization of maleated high oleic sunflower oil (MSOHO)
- Novel paper sizing agents from renewables. Part 3: Emulsion stability and hydrolysis behavior compared to conventional sizes
- Energy saving potential of high yield pulp (HYP) application by addition of small amounts of bleached wheat straw pulp
- Characterisation of Norway spruce hemicelluloses extracted by pressurised hot-water extraction (ASE) in the presence of sodium bicarbonate
- Fractionation and characterization of lignin-carbohydrate complexes (LCCs) from eucalyptus fibers
- Conditioning hardwood-derived pre-pulping extracts for use in fermentation through removal and recovery of acetic acid using trioctylphosphine oxide (TOPO)
- Xylitol production from olive-pruning debris by sulphuric acid hydrolysis and fermentation with Candida tropicalis
- Changes caused by heat treatment in chemical composition and some physical properties of acacia hybrid sapwood
- Near infrared spectroscopy (NIRS) as a potential tool for monitoring trade of similar woods: Discrimination of true mahogany, cedar, andiroba, and curupixá
- Reactive maleic anhydride polyolefins (MAPOs) in oriented strand board. Part 1: Dynamic thermomechanical properties of phenol formaldehyde resins blended with two MAPOs
- Reactive maleic anhydride polyolefins (MAPOs) in oriented strand board. Part 2: Influence on physical and mechanical properties
- Theoretical analysis of moisture transport in wood as an open porous hygroscopic material
- A multinuclear magnetic resonance imaging (MRI) study of wood with adsorbed water: Estimating bound water concentration and local wood density
- Mechanical characterization of single bamboo fibers with nanoindentation and microtensile technique
- Longitudinal mechanical properties of cell wall of Masson pine (Pinus massoniana Lamb) as related to moisture content: A nanoindentation study
- Short Note
- Sorption isotherm of lodgepole pine (Pinus contorta Dougl. Ex Loud.) pulp chips affected by the mountain pine beetle (Dendroctonus ponderosae)
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