A new protocol for efficient and high yield preparation of cellulose nanofibrils

Yangyang Peng, Chaoyu Duan, Retulainen Elias, Lucian A. Lucia, Shiyu Fu (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Nanocellulose has attracted considerable attention in virtue of the unique mechanical and optical properties. There were less cost-efficient methods for its mass production. In this paper, a facile high yield procedure for cellulose nanofibrils consisting of sulfuric acid treatment followed by alkali neutralization and homogenization was developed. The product was termed “acid-assisted cellulose nanofibrils” (AACNF). AACNF yield was 91.6% from dissolving pulp when 55 wt% sulfuric acid was applied at 45 °C for 40 min. The diameter was 10–20 nm, while the length varied from 40 to 800 nm. AACNF aqueous suspension showed good transparency at 600 nm having rheological properties similar to cellulose nanocrystals. The crystallinity of AACNF was 81.3% and displayed thermal properties that in comparison to traditional nanocellulose were very attractive because of neutralization. This study provided a facile high yield procedure for the production of nanocellulose with similar characteristics to traditional nanocellulose, which was significant to commercialization of nanocellulose. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)877-887
Number of pages11
JournalCellulose
Volume26
Issue number2
Early online date12 Nov 2018
DOIs
Publication statusPublished - 30 Jan 2019
MoE publication typeNot Eligible

Fingerprint

Cellulose
Acids
Sulfuric acid
Alkalies
Transparency
Nanocrystals
Pulp
Suspensions
Thermodynamic properties
Optical properties
Mechanical properties
Costs
sulfuric acid

Keywords

  • Acid hydrolysis
  • Cellulose nanofibrils
  • High yield
  • Neutralization

Cite this

Peng, Yangyang ; Duan, Chaoyu ; Elias, Retulainen ; Lucia, Lucian A. ; Fu, Shiyu. / A new protocol for efficient and high yield preparation of cellulose nanofibrils. In: Cellulose. 2019 ; Vol. 26, No. 2. pp. 877-887.
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A new protocol for efficient and high yield preparation of cellulose nanofibrils. / Peng, Yangyang; Duan, Chaoyu; Elias, Retulainen; Lucia, Lucian A.; Fu, Shiyu (Corresponding Author).

In: Cellulose, Vol. 26, No. 2, 30.01.2019, p. 877-887.

Research output: Contribution to journalArticleScientificpeer-review

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