Volume 139, Issue 43 e53054
RESEARCH ARTICLE

Characteristic comparison of lignocellulose nanofibrils from wheat straw having different mechanical pretreatments

Ming Yan

Ming Yan

Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food, Nanjing Forestry University, Nanjing, People's Republic of China

Contribution: Conceptualization (lead), Funding acquisition (lead), ​Investigation (lead), Methodology (lead), Project administration (lead), Resources (lead), Software (lead), Writing - original draft (lead), Writing - review & editing (lead)

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Ting Wu

Ting Wu

Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Jiangsu Province Key Lab of Biomass Energy and Materials, Nanjing, Jiangsu Province, People's Republic of China

Contribution: Formal analysis (supporting), Methodology (supporting), Resources (supporting)

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Jinxia Ma

Jinxia Ma

Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food, Nanjing Forestry University, Nanjing, People's Republic of China

Contribution: Supervision (equal), Validation (equal), Visualization (equal), Writing - review & editing (equal)

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Hailong Lu

Corresponding Author

Hailong Lu

Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Jiangsu Province Key Lab of Biomass Energy and Materials, Nanjing, Jiangsu Province, People's Republic of China

Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan, People's Republic of China

Correspondence

Hailong Lu, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.

Email: [email protected]

Xiaofan Zhou, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, People's Republic of China.

Email: [email protected]

Contribution: Data curation (lead), Funding acquisition (lead), Methodology (lead), Supervision (equal), Writing - review & editing (lead)

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Xiaofan Zhou

Corresponding Author

Xiaofan Zhou

Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food, Nanjing Forestry University, Nanjing, People's Republic of China

Correspondence

Hailong Lu, Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, People's Republic of China.

Email: [email protected]

Xiaofan Zhou, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, College of Light Industry and Food, Nanjing Forestry University, Nanjing 210037, People's Republic of China.

Email: [email protected]

Contribution: Project administration (lead), Supervision (lead), Validation (lead), Visualization (equal)

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First published: 24 August 2022
Citations: 2

Funding information: Postgraduate Research & Practice Innovation Program of Jiangsu Province, Grant/Award Number: KYCX21_0884; The Foundation of Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education of China, Grant/Award Number: KF202001

Abstract

Wheat straw (WS) was considered the most abundant agricultural residue in China. Therefore, it was meaningful to explore the effective utilization of WS. Thus far, WS has been considered a potential raw material to produce lignocellulose nanofibrils (LCNFs) with the rapid development of nanotechnology. Unfortunately, the existing methods of LCNFs preparation directly from WS still faced some hurdles. Herein, screw extrusion and ball milling considered the common mechanical pretreatments were employed to directly prepare LCNFs from WS. The different impacts of screw extrusion and ball milling pretreatments on the properties of LCNFs were revealed by systematically comparing physicochemical analyses. The results showed that the crystalline and chemical structure of samples was little affected by the mechanical pretreatment. However, the mechanical pretreatment caused a change in the morphology, yield, and chemical composition of LCNFs. LCNFs prepared by screw extrusion with a high yield of 73% had the narrowest diameter distribution (0 ~ 80 nm), the most cellulose content (51.1%), and the maximum crystallinity degree (44.7%). LCNF samples all exhibited good thermal stability. This work could not only offer theoretical guidance on the preparation of LCNFs by mechanical pretreatments but also expand the high-value application of WS in polymer composites.

CONFLICT OF INTEREST

The authors declare no potential conflict of interest.

DATA AVAILABILITY STATEMENT

Research data are not shared.

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