Comparative study of cellulose and lignocellulose nanopapers prepared from hard wood pulps: Morphological, structural and barrier properties

Seyed Rahman Djafari Petroudy; Navid Rahmani; Esmaeil Rasooly Garmaroody; Hamidreza Rudi; Omid Ramezani

doi:10.1016/j.ijbiomac.2019.05.212

Comparative study of cellulose and lignocellulose nanopapers prepared from hard wood pulps: Morphological, structural and barrier properties

Int J Biol Macromol. 2019 Aug 15:135:512-520. doi: 10.1016/j.ijbiomac.2019.05.212. Epub 2019 May 29.

Authors

Seyed Rahman Djafari Petroudy¹, Navid Rahmani², Esmaeil Rasooly Garmaroody³, Hamidreza Rudi⁴, Omid Ramezani⁵

Affiliations

¹ Nano-fibers Structures Lab. Biorefinery Engineering Department, Faculty of New Technologies Engineering, Shahid Beheshti University, P.O. Box: 4781173769 Zirab, Savadkoh, Mazandaran, Iran. Electronic address: sr_jafari@sbu.ac.ir.
² Biorefinery Engineering Department, Faculty of New Technologies Engineering, Shahid Beheshti University, P.O. Box: 4781173769, Zirab, Savadkoh, Mazandaran, Iran.
³ Biorefinery Engineering Department, Faculty of New Technologies Engineering, Shahid Beheshti University, P.O. Box: 4781173769, Zirab, Savadkoh, Mazandaran, Iran. Electronic address: e_rasooly@sbu.ac.ir.
⁴ Biorefinery Engineering Department, Faculty of New Technologies Engineering, Shahid Beheshti University, P.O. Box: 4781173769, Zirab, Savadkoh, Mazandaran, Iran. Electronic address: h_rudi@sbu.ac.ir.
⁵ Biorefinery Engineering Department, Faculty of New Technologies Engineering, Shahid Beheshti University, P.O. Box: 4781173769, Zirab, Savadkoh, Mazandaran, Iran. Electronic address: O_Ramezani@sbu.ac.ir.

PMID: 31152834
DOI: 10.1016/j.ijbiomac.2019.05.212

Abstract

The current research intended to explore the hardwood pulps capabilities to produce cellulose (CNPs) and lignocellulose nanopapers (LNPs) and feasible enhancement of their performance for possible utilization in sustainable packaging. The high-yield hardwood pulps were then bleached to show the fundamental role of residual lignin on the ultrafine fibrillation processes, structural and barrier properties of nanopapers. X-ray diffraction results demonstrated that the crystallinity and crystallite size of CNPs and LNPs were lower than the corresponding starting pulps. Field emission scanning electron microscopy analysis showed that the average nanofibril diameter of the CNPs and LNPs are 35 nm and 23 nm, respectively. Elastic modulus of LNPs was found to be 9.1 and 10.8 GPa for Chemimechanical and Neutral sulfite semichemical pulps, respectively. The semi-porous and consolidated structure of LNPs prepared from CMP fibers contributed to yield the lowest water vapor transmission rate i.e. 108 g/m².day which is promising for potential applications in packaging materials.

Keywords: Cellulose nanopapers; Crystallinity; Hardwood pulps; Lignocellulose nanopapers; Residual lignin.

Publication types

Comparative Study

MeSH terms

Cellulose / chemistry*
Lignin / chemistry*
Nanostructures / chemistry
Paper
Steam
Viscosity
Wood / chemistry*

Substances

Steam
lignocellulose
Cellulose
Lignin