Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network
Supramolecular structure is the critical factor that affects the properties of cellulosic fibers. This article studied the action of Papirindustriens forskningsinstitut (PFI) refining on the molecular aggregation and hydrogen bonding network, and tried to explore the relationship between the crystal...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/12/2912 |
| _version_ | 1797545667651960832 |
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| author | Kunpeng Li Lihong Zhao Beihai He |
| author_facet | Kunpeng Li Lihong Zhao Beihai He |
| author_sort | Kunpeng Li |
| collection | DOAJ |
| description | Supramolecular structure is the critical factor that affects the properties of cellulosic fibers. This article studied the action of Papirindustriens forskningsinstitut (PFI) refining on the molecular aggregation and hydrogen bonding network, and tried to explore the relationship between the crystal packing and hydrogen-bonding network in cellulosic fibers. The results showed that the polymorph, H-bonding distance, and H-bonding energy of various H-bonds remained almost unchanged, while the crystalline index, crystallite size, and content of various H-bonds changed with refining. Therein, the content of the inter-molecular O(6)H⋯O(3′) H-bonds was significantly correlated with the crystalline index that was obtained in intensities of the XRD peaks. The Pearson correlation coefficient between them was 0.888 (<i>p</i> < 0.05) for softwood fibers and 0.889 (<i>p</i> < 0.05) for hardwood fibers, respectively. It can be concluded that the variations of accessibility, swelling, and fibrillation were closely related to the supramolecular structure and the intermolecular H-bonds play an important role in the crystal packing of cellulose. |
| first_indexed | 2024-03-10T14:19:30Z |
| format | Article |
| id | doaj.art-7a37d182c64641fa8c27780120614783 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T14:19:30Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7a37d182c64641fa8c277801206147832023-11-20T23:32:13ZengMDPI AGPolymers2073-43602020-12-011212291210.3390/polym12122912Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding NetworkKunpeng Li0Lihong Zhao1Beihai He2State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Rd., Tianhe District, Guangzhou 510640, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Rd., Tianhe District, Guangzhou 510640, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Rd., Tianhe District, Guangzhou 510640, ChinaSupramolecular structure is the critical factor that affects the properties of cellulosic fibers. This article studied the action of Papirindustriens forskningsinstitut (PFI) refining on the molecular aggregation and hydrogen bonding network, and tried to explore the relationship between the crystal packing and hydrogen-bonding network in cellulosic fibers. The results showed that the polymorph, H-bonding distance, and H-bonding energy of various H-bonds remained almost unchanged, while the crystalline index, crystallite size, and content of various H-bonds changed with refining. Therein, the content of the inter-molecular O(6)H⋯O(3′) H-bonds was significantly correlated with the crystalline index that was obtained in intensities of the XRD peaks. The Pearson correlation coefficient between them was 0.888 (<i>p</i> < 0.05) for softwood fibers and 0.889 (<i>p</i> < 0.05) for hardwood fibers, respectively. It can be concluded that the variations of accessibility, swelling, and fibrillation were closely related to the supramolecular structure and the intermolecular H-bonds play an important role in the crystal packing of cellulose.https://www.mdpi.com/2073-4360/12/12/2912natural cellulosic fibersmechanical refiningCrystallinityCrystallite sizeHydrogen bonds |
| spellingShingle | Kunpeng Li Lihong Zhao Beihai He Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network Polymers natural cellulosic fibers mechanical refining Crystallinity Crystallite size Hydrogen bonds |
| title | Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network |
| title_full | Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network |
| title_fullStr | Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network |
| title_full_unstemmed | Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network |
| title_short | Probing Effect of Papirindustriens Forskningsinstitut (PFI) Refining on Aggregation Structure of Cellulose: Crystal Packing and Hydrogen-Bonding Network |
| title_sort | probing effect of papirindustriens forskningsinstitut pfi refining on aggregation structure of cellulose crystal packing and hydrogen bonding network |
| topic | natural cellulosic fibers mechanical refining Crystallinity Crystallite size Hydrogen bonds |
| url | https://www.mdpi.com/2073-4360/12/12/2912 |
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