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Improving the mechanical properties of polycaprolactone using functionalized nanofibrillated bacterial cellulose with high dispersibility and long fiber length as a reinforcement material
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| Title: | Improving the mechanical properties of polycaprolactone using functionalized nanofibrillated bacterial cellulose with high dispersibility and long fiber length as a reinforcement material |
| Authors: | Hashim, Hamidah binti Browse this author | | Emran, Nur Aisyah Adlin binti Browse this author | | Isono, Takuya Browse this author →KAKEN DB | | Katsuhara, Satoshi Browse this author | | Ninoyu, Hiroko Browse this author | | Matsushima, Tokuo Browse this author | | Yamamoto, Takuya Browse this author →KAKEN DB | | Borsali, Redouane Browse this author | | Satoh, Toshifumi Browse this author →KAKEN DB | | Tajima, Kenji Browse this author →KAKEN DB |
| Keywords: | A. Cellulose | | A. Fibres | | A. Polymer-matrix composites (PMCs) | | B. Mechanical properties |
| Issue Date: | Jul-2022 |
| Publisher: | Elsevier |
| Journal Title: | Composites Part A: Applied Science and Manufacturing |
| Volume: | 158 |
| Start Page: | 106978 |
| Publisher DOI: | 10.1016/j.compositesa.2022.106978 |
| Abstract: | Nanofibrillated bacterial cellulose (NFBC) produced in the presence of hydroxypropylcellulose (HPC) (HP-NFBC) is amphiphilic and has a very long fiber length (>15 μm). In this study, polycaprolactone (PCL)-grafted HP-NFBC (HPNFBC-g-PCL) was prepared via ring-opening polymerization from the hydroxy groups on the HP-NFBC surface as initiation sites. The mechanical properties of the nanocomposites containing PCL homopolymer and HPNFBC-g-PCL were investigated. The nanocomposite with 13 wt% cellulose was the stiffest film with the highest ultimate strength and Young’s modulus of 57.3 and 661.3 MPa, respectively. HP-NFBCs grafted with PCL of different molecular weights (20, 15, and 9 k) were also prepared to study the effect of the graft length on the mechanical properties of the nanocomposites. Grafting HP-NFBC with a higher molecular weight (20 k) PCL led to an enhanced ultimate strength and Young’s modulus. These results suggest that HP-NFBC can serve as an excellent reinforcement material. |
| Rights: | © <2022>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/92942 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 田島 健次
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