Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate
Fly ash-based calcium silicate (FACS), which has a large surface area (121 m2/g) and porous structure, has the potential to be used as a filler for the production of high-bulk paper. In theory, paper with a higher bulk has a lower strength. This work explores the possibility of improving paper stren...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2016-07-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_7406_Zhang_Paper_Strength_Bulk_Flocculation |
| _version_ | 1817997965678084096 |
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| author | Meiyun Zhang Qiumei Li Shunxi Song Ning Hao Guodong Liu |
| author_facet | Meiyun Zhang Qiumei Li Shunxi Song Ning Hao Guodong Liu |
| author_sort | Meiyun Zhang |
| collection | DOAJ |
| description | Fly ash-based calcium silicate (FACS), which has a large surface area (121 m2/g) and porous structure, has the potential to be used as a filler for the production of high-bulk paper. In theory, paper with a higher bulk has a lower strength. This work explores the possibility of improving paper strength without compromising its bulk through co-flocculation of cellulosic fines and FACS. To investigate the effect of co-flocculation on paper properties, composites made with various ratios of fines to FACS were studied. Results showed that paper bulk and tensile strength increased with increasing ratio of fines to FACS, up to 0.3 at 17% filler content. To further confirm these findings, the structures of composites were studied with a light microscope and scanning electronic microscope (SEM). Images showed that the composite formed at the ratio of 0.3 exhibited a larger size and looser structure than other composites, which can be attributed to the improvement of the paper’s strength and bulk. Schemes for the composite formation process and its interactions with fibers were also proposed. |
| first_indexed | 2024-04-14T02:46:02Z |
| format | Article |
| id | doaj.art-a9148435d44040a3b60fc3f97f567982 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-04-14T02:46:02Z |
| publishDate | 2016-07-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-a9148435d44040a3b60fc3f97f5679822022-12-22T02:16:33ZengNorth Carolina State UniversityBioResources1930-21261930-21262016-07-011137406741510.15376/biores.11.3.7406-7415Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium SilicateMeiyun Zhang0Qiumei Li1Shunxi Song2Ning Hao3Guodong Liu4 Shaanxi University of Science and Technology; China Shaanxi University of Science and Technology; China Shaanxi University of Science and Technology; ChinaShaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper, College of Light Industry and Energy, Shaanxi University of Science & Technology, Xi’an 710021, China; China Shaanxi University of Science and Technology; ChinaFly ash-based calcium silicate (FACS), which has a large surface area (121 m2/g) and porous structure, has the potential to be used as a filler for the production of high-bulk paper. In theory, paper with a higher bulk has a lower strength. This work explores the possibility of improving paper strength without compromising its bulk through co-flocculation of cellulosic fines and FACS. To investigate the effect of co-flocculation on paper properties, composites made with various ratios of fines to FACS were studied. Results showed that paper bulk and tensile strength increased with increasing ratio of fines to FACS, up to 0.3 at 17% filler content. To further confirm these findings, the structures of composites were studied with a light microscope and scanning electronic microscope (SEM). Images showed that the composite formed at the ratio of 0.3 exhibited a larger size and looser structure than other composites, which can be attributed to the improvement of the paper’s strength and bulk. Schemes for the composite formation process and its interactions with fibers were also proposed.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_7406_Zhang_Paper_Strength_Bulk_FlocculationBulkstrengthCompositeFinesFly ash based calcium silicateCo-flocculation |
| spellingShingle | Meiyun Zhang Qiumei Li Shunxi Song Ning Hao Guodong Liu Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate BioResources Bulk strength Composite Fines Fly ash based calcium silicate Co-flocculation |
| title | Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate |
| title_full | Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate |
| title_fullStr | Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate |
| title_full_unstemmed | Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate |
| title_short | Increase of Paper Strength and Bulk by Co-Flocculation of Fines and Fly Ash-based Calcium Silicate |
| title_sort | increase of paper strength and bulk by co flocculation of fines and fly ash based calcium silicate |
| topic | Bulk strength Composite Fines Fly ash based calcium silicate Co-flocculation |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_7406_Zhang_Paper_Strength_Bulk_Flocculation |
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