Preparation of Cationic CMP and Softwood Long Fibers as Strength-Enhancing Additive to CMP Pulp

Jouybari, Iman Rashidi; Yoosefi, Mahdi; Azadfallah, Mohammad

doi:10.15376/biores.12.2.3890-3904

Cited by 1 publication

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A considerable improvement in the tensile strength and air permeability of CMP paper was reported when cellulose nanofibers were applied as an additive (Aliniyay Lakani et al 2016). In addition, reports about the cationization of additives on the performance of CMP paper showed that mixing long cationic fibers in CMP paper pulp increased the strength and the retention of fines (Rashidi Jouybari et al 2015). Rahmaninia et al (2015) investigated effects of pH on the performance of chitosanbentonite additives in CMP paper and found that a 1.25% chitosan treatment at a constant level of 0.3% bentonite at an alkaline pH had the best paper strength.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the internal functionalization and surface modification methods of chemi-mechanical pulp handsheets using nanocellulose, chitosan, and DTPA

Rezazadeh

Vaysi

Soltani

et al. 2022

BioRes

View full text Add to dashboard Cite

The optical and mechanical properties of paper sheets were compared following treatment with biopolymers using two different methods, i.e., internal functionalization and surface modification. Industrial chemi-mechanical pulp was provided, and two groups of paper handsheets were made. The first group of paper sheet samples were prepared with incorporated chitosan in a mixed-in-pulp slurry (at three treatment levels, i.e., 0%, 1%, and 2%), and in the second group, untreated handsheets were spray-coated with either 2% chitosan, 2% nanocellulose, 0.5% DTPA, or a mixed solution (0.5% DTPA + 2% chitosan + 2% nanocellulose). Then, the optical and mechanical properties of the prepared paper sheets were analyzed. The brightness, opacity, and greenness/redness of the samples were measured spectrophotometrically using the CIELab system. Additional properties of the paper, i.e., the water absorption, air permeability, and tear, tensile, and burst resistance, of the treated samples were also measured. The results indicated that the treatments had a considerable effect on the relative mechanical and optical parameters, which resulted in an increase in the mechanical properties, especially when the nano-particles were applied to the mixed-in-slurry process. Inversely, results from the spray-coating method indicated better results for the optical specifications.

show abstract

Section: Introductionmentioning

confidence: 99%