Unique alkyl ketene dimer Pickering-based dispersions: Preparation and application to paper sizing

2017 ◽  
Vol 135 (4) ◽  
pp. 45730 ◽  
Author(s):  
Qi Zhao ◽  
Wenxia Liu ◽  
Guodong Li ◽  
Lucian A. Lucia ◽  
Huili Wang ◽  
...  
Keyword(s):  
Alkyl Ketene Dimer ◽  
Paper Sizing

Influence of Polymer Charge, Temperature, and Surfactants on Surface Sizing of Liner and Greaseproof Paper With Hydrophobically Modified Starch

TAPPI Journal ◽  
2009 ◽  
Vol 8 (2) ◽  
pp. 33-38 ◽  
Author(s):  
ANNA JONHED ◽  
LARS JÄRNSTRÖM
Keyword(s):  
Phase Separation ◽  
Contact Angles ◽  
Low Ph ◽  
Hydrophobically Modified ◽  
Paper Sizing ◽  
Surface Sizing ◽  
Separation Temperature ◽  
Hydrophobic Nature ◽  
Sizing Agents ◽  
Charge Temperature

The aim of this study was to investigate the properties of hydrophobically modified (HM) quaterna-ry ammonium starch ethers for paper sizing. These starches possess temperature-responsive properties; that is, gelation or phase separation occurs at a certain temperature upon cooling. This insolubility of the HM starches in water at room temperature improved their performance as sizing agents. The contact angles for water on sized liner were substantially larger than on unsized liner. When the application temperature was well above the critical phase-separation temperature, larger contact angles were obtained for liner independently of pH compared with those at the lower application temperature. Cobb60 values for liner decreased upon surface sizing, with a low pH and high application temperature giving lower water penetration. Contact angles on greaseproof paper decreased upon sur-face sizing as compared to unsized greaseproof paper, independently of pH and temperature. Greaseproof paper showed no great difference between unsized substrates and substrates sized with HM starch at different pH. This is probably due to the already hydrophobic nature of greaseproof paper. However, the Cobb60 values increased at low pH and low application temperature. Surfactants were added to investigate how they affect the sized surface. Addition of surfactant reduces the contact angles, in spite of indications of complex formation.

Paper sizing with gelatine: from the macro- to the nano-scale

Cellulose ◽  
2021 ◽  
Author(s):  
Alice Gimat ◽  
Anne Michelin ◽  
Oulfa Belhadj ◽  
Eleonora Pellizzi ◽  
Pascale Massiani ◽  
...  
Keyword(s):  
Nano Scale ◽  
Paper Sizing

Progress in patterned paper sizing for fabrication of paper-based microfluidic sensors

Cellulose ◽  
2010 ◽  
Vol 17 (3) ◽  
pp. 649-659 ◽  
Author(s):  
Xu Li ◽  
Junfei Tian ◽  
Wei Shen
Keyword(s):  
Paper Sizing ◽  
Microfluidic Sensors ◽  
Patterned Paper

Effect of Resin Acid and Hemicelluloses on Alkyl Ketene Dimer Sizing

2011 ◽  
Vol 25 (6-7) ◽  
pp. 743-760 ◽  
Author(s):  
Jérôme Da Silva Mourao ◽  
Elisa Zeno ◽  
Evelyne Mauret
Keyword(s):  
Resin Acid ◽  
Alkyl Ketene Dimer
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