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Acoustic analysis of recovery boiler dissolving tank operati

Acoustic analysis of recovery boiler dissolving tank operation and smelt shattering efficiency, TAPPI JOURNAL September 2016

Editorial: PEERS 2016 honors technical achievements, TAPPI J

Editorial: PEERS 2016 honors technical achievements, TAPPI JOURNAL September 2016

Effects of localized environment on eucalyptus clone chemica

Effects of localized environment on eucalyptus clone chemical composition, TAPPI JOURNAL September 2016

Fast evaluation of spatial coating layer formation using ultraviolet scanner imaging

Fast evaluation of spatial coating layer formation using ultraviolet scanner imaging, TAPPI JOURNAL August 2015

Editorial: Carl Houtman: A government research perspective

Statistical determination of the effects of enzymes on bleached pulp yield, TAPPI JOURNAL, August 2005, Vol. 4(8) (80 KB)

Statistical determination of the effects of enzymes on bleached pulp yield, TAPPI JOURNAL, August 2005, Vol. 4(8) (80 KB)

A novel, non-mechanical method for producing matte and dull papers with exceptional print gloss, TAPPI JOURNAL, May 2003, Vol. 2(5) (488KB)

A novel, non-mechanical method for producing matte and dull papers with exceptional print gloss, TAPPI JOURNAL, May 2003, Vol. 2(5) (488KB)

A brominated methylethylhydantoin slimicide in a tissue mill, TAPPI JOURNAL, May 2003, Vol. 2(5) (179KB)

A brominated methylethylhydantoin slimicide in a tissue mill, TAPPI JOURNAL, May 2003, Vol. 2(5) (179KB)

Hexenuronic acid contents of eucalyptus globulus kraft pulps: variation with pulping conditions and effect on ecf bleachability, Solutions! & TAPPI JOURNAL, May 2003, Vol. 2(5) (188KB)

Hexenuronic acid contents of eucalyptus globulus kraft pulps: variation with pulping conditions and effect on ecf bleachability, Solutions! & TAPPI JOURNAL, May 2003, Vol. 2(5) (188KB)

Water and grease resistance of paperboard coated with long chain cellulose fatty acid esters using electrostatic powder coating, TAPPI Journal April 2026

ABSTRACT: Fiber-based materials used for foodservice, takeaway, and other packaging applications must typically provide water and grease resistance. Simultaneously, there is growing interest towards bio-based and renewable barrier coatings. In this study we applied thermoplastic long chain fatty acid cellulose esters onto paperboard using electrostatic powder coating to create barrier properties of interest. Electrostatic powder coating provides a water-free process to tackle moisture-induced quality issues and to provide an even coating layer. Cellulose octanoate and palmitate esters were produced in pilot scale. These were ground into fine particles using liquid nitrogen and applied onto paperboard sheets using an electrostatic powder gun. The loosely packed coatings were fixed and fused onto the paperboard by hot pressing. We characterized the coated sheets for coating thickness, contact angles with water, water absorption, grease resistance (KIT), and olive oil barrier. Two commercial polyethylene powders were used as references. Our results indicated that the long chain cellulose fatty acid ester coatings were thermoplastic and hydrophobic with contact angles above 100°. Water absorption was similar to the reference coatings. While grease resistance was lower than with the references, the cellulose ester coatings slowed down diffusion of olive oil through the paperboard. Cellulose octanoate ester with a lower melt viscosity already provided smooth coatings after the initial hot pressing step, while in most cases, the second post hot pressing step further improved the barrier properties.