Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application
Even though making thin sheets of cellulose nanofiber by a papermaking-like process is straightforward, obtaining thicker papers or plates is extremely time consuming. Dewatering is exceedingly slow due to the enormous number of hydroxyl groups on the surface of nanocellulose that hinders water flow...
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| Language: | English |
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North Carolina State University
2024-12-01
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| Series: | BioResources |
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| Online Access: | https://ojs.bioresources.com/index.php/BRJ/article/view/23859 |
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| _version_ | 1850055797821669376 |
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| author | Antonio Nakagaito Hitoshi Takagi Yuki Usui |
| author_facet | Antonio Nakagaito Hitoshi Takagi Yuki Usui |
| author_sort | Antonio Nakagaito |
| collection | DOAJ |
| description | Even though making thin sheets of cellulose nanofiber by a papermaking-like process is straightforward, obtaining thicker papers or plates is extremely time consuming. Dewatering is exceedingly slow due to the enormous number of hydroxyl groups on the surface of nanocellulose that hinders water flow. This study proposes a simple device that speeds up dewatering through the application of air pressure on the aqueous suspension being filtered. A relative pressure of 0.5 MPa reduced the dewatering time of 72 hours for a conventional vacuum filtration to 16 hours, without compromising the mechanical properties of the final molded material. |
| format | Article |
| id | doaj-art-9374d7ccdbf04f96884b25c590db074f |
| institution | DOAJ |
| issn | 1930-2126 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj-art-9374d7ccdbf04f96884b25c590db074f2025-08-20T02:51:52ZengNorth Carolina State UniversityBioResources1930-21262024-12-01201112711352062Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure ApplicationAntonio Nakagaito0https://orcid.org/0000-0001-9100-7977Hitoshi Takagi1https://orcid.org/0000-0003-0228-226XYuki Usui2Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-8506, JapanGraduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-8506, JapanGraduate School of Advanced Technology and Science, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-8506, JapanEven though making thin sheets of cellulose nanofiber by a papermaking-like process is straightforward, obtaining thicker papers or plates is extremely time consuming. Dewatering is exceedingly slow due to the enormous number of hydroxyl groups on the surface of nanocellulose that hinders water flow. This study proposes a simple device that speeds up dewatering through the application of air pressure on the aqueous suspension being filtered. A relative pressure of 0.5 MPa reduced the dewatering time of 72 hours for a conventional vacuum filtration to 16 hours, without compromising the mechanical properties of the final molded material.https://ojs.bioresources.com/index.php/BRJ/article/view/23859all-cellulose platecellulose nanofiberdewatering acceleration |
| spellingShingle | Antonio Nakagaito Hitoshi Takagi Yuki Usui Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application BioResources all-cellulose plate cellulose nanofiber dewatering acceleration |
| title | Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application |
| title_full | Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application |
| title_fullStr | Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application |
| title_full_unstemmed | Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application |
| title_short | Accelerated Dewatering of Thick All-cellulose Nanofiber Mats by Air Pressure Application |
| title_sort | accelerated dewatering of thick all cellulose nanofiber mats by air pressure application |
| topic | all-cellulose plate cellulose nanofiber dewatering acceleration |
| url | https://ojs.bioresources.com/index.php/BRJ/article/view/23859 |
| work_keys_str_mv | AT antonionakagaito accelerateddewateringofthickallcellulosenanofibermatsbyairpressureapplication AT hitoshitakagi accelerateddewateringofthickallcellulosenanofibermatsbyairpressureapplication AT yukiusui accelerateddewateringofthickallcellulosenanofibermatsbyairpressureapplication |