Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging
Synthetic polymers are the most commonly used polymers in daily life. Therefore, it is necessary to develop environmentally friendly polymers. Hydroxypropyl methylcellulose (HPMC) is a potential candidate for a biopolymer, owing to its unique properties. However, HPMC biopolymers have some disadvant...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/11/1838 |
| _version_ | 1797531636555841536 |
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| author | Shih-Chen Shi Pramod Kumar Mandal Tao-Hsing Chen |
| author_facet | Shih-Chen Shi Pramod Kumar Mandal Tao-Hsing Chen |
| author_sort | Shih-Chen Shi |
| collection | DOAJ |
| description | Synthetic polymers are the most commonly used polymers in daily life. Therefore, it is necessary to develop environmentally friendly polymers. Hydroxypropyl methylcellulose (HPMC) is a potential candidate for a biopolymer, owing to its unique properties. However, HPMC biopolymers have some disadvantages compared to synthetic polymers. In this study, the mechanical properties and tribological performance of MoS<sub>2</sub> additive-enhanced cellulose matrix biocomposites were investigated in order to improve the properties of HPMC. MoS<sub>2</sub> was incorporated into the HPMC matrix as a strengthening additive. The mechanical properties, bonding, and water vapor permeability of the composites were analyzed. The mechanical and vapor barrier properties of the HPMC films were significantly enhanced. The ultimate tensile strength and Young’s modulus of the composite films increased with the addition of up to 1 wt% MoS<sub>2</sub>. The water vapor permeability of HPMC films reduced when additives were incorporated. The wear test proves that the MoS<sub>2</sub> additives can improve the tribological performance of the HPMC composite while reducing the friction coefficient. The main reason for enhanced tribological performance is the improvement in load capacity of the composite coating by the MoS<sub>2</sub> additive. This MoS<sub>2</sub>/HPMC biocomposite can be used in food packaging. |
| first_indexed | 2024-03-10T10:47:32Z |
| format | Article |
| id | doaj.art-146f52813b8546fb99c743e75ddd06d8 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T10:47:32Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-146f52813b8546fb99c743e75ddd06d82023-11-21T22:28:19ZengMDPI AGPolymers2073-43602021-06-011311183810.3390/polym13111838Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food PackagingShih-Chen Shi0Pramod Kumar Mandal1Tao-Hsing Chen2Department of Mechanical Engineering, National Cheng Kung University (NCKU), No. 1 University Road, Tainan 70101, TaiwanDepartment of Mechanical Engineering, National Cheng Kung University (NCKU), No. 1 University Road, Tainan 70101, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, TaiwanSynthetic polymers are the most commonly used polymers in daily life. Therefore, it is necessary to develop environmentally friendly polymers. Hydroxypropyl methylcellulose (HPMC) is a potential candidate for a biopolymer, owing to its unique properties. However, HPMC biopolymers have some disadvantages compared to synthetic polymers. In this study, the mechanical properties and tribological performance of MoS<sub>2</sub> additive-enhanced cellulose matrix biocomposites were investigated in order to improve the properties of HPMC. MoS<sub>2</sub> was incorporated into the HPMC matrix as a strengthening additive. The mechanical properties, bonding, and water vapor permeability of the composites were analyzed. The mechanical and vapor barrier properties of the HPMC films were significantly enhanced. The ultimate tensile strength and Young’s modulus of the composite films increased with the addition of up to 1 wt% MoS<sub>2</sub>. The water vapor permeability of HPMC films reduced when additives were incorporated. The wear test proves that the MoS<sub>2</sub> additives can improve the tribological performance of the HPMC composite while reducing the friction coefficient. The main reason for enhanced tribological performance is the improvement in load capacity of the composite coating by the MoS<sub>2</sub> additive. This MoS<sub>2</sub>/HPMC biocomposite can be used in food packaging.https://www.mdpi.com/2073-4360/13/11/1838celluloseMoS<sub>2</sub>mechanical propertieswater vapor permeabilitytribology |
| spellingShingle | Shih-Chen Shi Pramod Kumar Mandal Tao-Hsing Chen Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging Polymers cellulose MoS<sub>2</sub> mechanical properties water vapor permeability tribology |
| title | Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging |
| title_full | Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging |
| title_fullStr | Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging |
| title_full_unstemmed | Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging |
| title_short | Mechanical Properties and Tribological Behavior of MoS<sub>2</sub>-Enhanced Cellulose-Based Biocomposites for Food Packaging |
| title_sort | mechanical properties and tribological behavior of mos sub 2 sub enhanced cellulose based biocomposites for food packaging |
| topic | cellulose MoS<sub>2</sub> mechanical properties water vapor permeability tribology |
| url | https://www.mdpi.com/2073-4360/13/11/1838 |
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