PAPERmaking! FROM THE PUBLISHERS OF PAPER TECHNOLOGY Volume 4, Number 1, 2018
by cellulose nanofibers (CNFs) that lead to exorbitant time consumption in the dewatering of CNF suspensions. This has been a bottleneck, which is restricting the commercialization of CNF derived products such as nanopapers and CNF reinforced paper sheets. As a remedy, we suggest an eco-friendly water-based approach that involves the use of sonication energy and lactic acid (LA) to modify the surface of CNFs. Cellulose nanofibers from residues to improve linting and mechanical properties of recycled paper, Ana Balea et al , Cellulose , Vol.25 (2). The production of high filler- loaded recycled papers is often affected by high values of linting and low values of strength. In the first case, the accumulation of lint particles from paper’s surface on the printing blanket affects the quality of the printed paper and the pressroom’s productivity. In the second case, increasing the use of fillers and recycling cycles lead to poor paper strength. The objective of this research is, therefore, to quantify the effect of applying lower grade, more sustainable CNFs on linting phenomena and on the mechanical properties of recycled papers. Influence of relative humidity on the strength of hardwood and softwood pulp fibres and fibre to fibre joints, Marina Jajcinovic et al , Cellulose , Vol.25 (4). Cellulosic materials are highly sensitive towards environmental changes such as temperature and especially towards humidity. Besides morphological changes like swelling and/or shrinking, the mechanical properties of pulp fibres and fibre to fibre joints change as well. The current study sets to elucidate the changes and the extent to which elevated or decreased relative humidity (RH) influences the load bearing capacity of individual hardwood and softwood fibres and joints. Preparation of a modified diatomite filler via polyethyleneimine impregnation and its application in papermaking, Wei Shang et al , Journal of Applied Polymer Science , Vol.135. In this study, we sequentially modified diatomite (DM) particles with sodium dodecyl sulfate and polyethyleneimine with an impregnation method. Modified DM was used as both a filler and an anionic trash catcher in the papermaking process. The results show that the modified DM could be used as a good, novel filler in papermaking.. Unique alkyl ketene dimer Pickering Ǧ based dispersions: Preparation and application to paper sizing, Qi Zhao et al , Journal of Applied Polymer Science , Vol.135 (4). Herein, particle Ǧ stabilized alkyl ketene dimer (AKD) dispersions were prepared using dodecyl trimethyl ammonium chloride (DTAC) Ǧ modified laponite as the stabilizer, and sodium alginate (SA) as the protective colloid. The dispersions were fully characterised and their effect on paper properties assessed. Water-Soluble Pressure-Sensitive Adhesives Containing Carboxymethyl Starch with Improved Adhesion to Paper, Katarzyna Wilpiszewska & Zbigniew Czech, Journal of Polymers and the Environment , Vol.26 (4). Water-soluble pressure-sensitive adhesives (PSA) based on acrylic acid and carboxymethyl starch (CMS) have been prepared. The tack and peel adhesion to various paper types (newsprint, hygienic, packing, fax and art paper) as well as dynamic shear adhesion at higher temperatures (70 –240 °C) have been tested with the aim of applying such PSA in a form of double-sided splicing tapes for paper industry. Multilayer assembly of ionic starches on old corrugated container recycled cellulosic fibers, Hamidreza Rudi et al , Polymer International , Vol.67 (1). In this study, old corrugated container recycled fibers were treated with polyelectrolyte multilayers
Technical Abstracts
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