Abstract
As a key raw material in fluting paper production, NSSC pulp from hardwoods is crucial in sustainable packaging applications. Hence, efforts are underway to increase the quality of this pulp. This study aims to enhance the physical and mechanical properties of papers produced from Populus deltoides NSSC pulp by reinforcing them with cellulose nanofibrils (CNFs) derived from rice straw. The NSSC pulping of poplar wood was optimized, and then CNFs were added at 5, 10, and 15 % to refined NSSC pulp. Papers (127 g/m2) were fabricated, and the impact of CNF reinforcement on the physical and mechanical properties of papers was evaluated. Results demonstrated that the addition of CNFs significantly improved tensile, burst, and tear indices, bending stiffness, and ring crush test (RCT) by 32.46 %, 19.85 %, 18.22 %, 78.76 % and 65.71 %, respectively. Furthermore, the addition of CNF increased density (30.88 %) and simultaneously reduced thickness (20 %) and bulk (23.23 %). Cobb test showed that water absorption decreased by 35.48 %, indicating better water resistance, while drainage time increased by 87.30 %, reflecting changes in fiber network structure. CNFs facilitate extensive hydrogen bonding, yielding a denser and more robust fiber network. This study highlights CNFs’ potential as an additive for reinforcing NSSC papers and improving packaging performance.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: Saleh Ghahramani: Conceptualization, Methodology, Investigation, Writing –original, Formal analysis. Sahab Hedjazi: Conceptualization, Methodology, Validation, Writing – review& editing, Supervision, Project administration. Saeed Mahdavi: Validation, Methodology, Supervision.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: All data supporting the findings of this study are included in the manuscript. Additional datasets are available from the corresponding author upon reasonable request.
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© 2025 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Chemical Pulping
- Alkali-extracted spruce bark residues for pulping and making of pulp sheets
- Applications of cationic bamboo fibers for the effective reinforcements of secondary fibers
- Paper Technology
- Improving hydrophobicity and mechanical strength of rice straw paper using chitosan nanoparticles and beeswax coatings
- Extended wet pressing at elevated temperature enables enhanced dewatering for tissue and linerboard
- Tissue paper from cabbage leaf – waste paper mixtures
- Inhibition of hornification in simao pine fibers and recycled paper with different beating degrees by microwave expansion treatment
- Preparation of mycelium paper sheets and study on their adsorption properties
- Paper Physics
- Influence of the hybrid effect on the mechanical properties of pulp molds
- Paper Chemistry
- Response surface methodology optimization and anti-age properties in paper protection of carboxymethyl cellulose grafted with β –cyclodextrin
- Printing
- Green innovations in natural paper ink: trends, applications, and future prospects
- Packaging
- Advanced moisture strategy for expanded formability in paper-based packaging
- Production of packaging paper from Populus deltoides NSSC pulp reinforced with rice straw cellulose nanofibrils
- Environmental Impact
- Treatment of regenerated papermaking wastewater by sequencing batch moving bed biofilm reactor and kinetics study
Artikel in diesem Heft
- Frontmatter
- Chemical Pulping
- Alkali-extracted spruce bark residues for pulping and making of pulp sheets
- Applications of cationic bamboo fibers for the effective reinforcements of secondary fibers
- Paper Technology
- Improving hydrophobicity and mechanical strength of rice straw paper using chitosan nanoparticles and beeswax coatings
- Extended wet pressing at elevated temperature enables enhanced dewatering for tissue and linerboard
- Tissue paper from cabbage leaf – waste paper mixtures
- Inhibition of hornification in simao pine fibers and recycled paper with different beating degrees by microwave expansion treatment
- Preparation of mycelium paper sheets and study on their adsorption properties
- Paper Physics
- Influence of the hybrid effect on the mechanical properties of pulp molds
- Paper Chemistry
- Response surface methodology optimization and anti-age properties in paper protection of carboxymethyl cellulose grafted with β –cyclodextrin
- Printing
- Green innovations in natural paper ink: trends, applications, and future prospects
- Packaging
- Advanced moisture strategy for expanded formability in paper-based packaging
- Production of packaging paper from Populus deltoides NSSC pulp reinforced with rice straw cellulose nanofibrils
- Environmental Impact
- Treatment of regenerated papermaking wastewater by sequencing batch moving bed biofilm reactor and kinetics study