Rapid fabrication of sustainable bioplastics from phosphorylated cellulose microfibers via hot-press assisted dual crosslinking with enhanced mechanical and thermal properties.
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PubMed
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| Auteurs principaux: | , , , , , , , |
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| Format: | Artículo científico |
| Langue: | en |
| Publié: |
International journal of biological macromolecules
2026
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| _version_ | 1868266039396007938 |
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| author | Zhang, Shuya Zheng, Gaoyi Zhu, Xiaoyu Che, Mingda Shan, Cancan Cui, Mei Huang, Renliang Su, Rongxin |
| author_facet | Zhang, Shuya Zheng, Gaoyi Zhu, Xiaoyu Che, Mingda Shan, Cancan Cui, Mei Huang, Renliang Su, Rongxin Zhang, Shuya Zheng, Gaoyi Zhu, Xiaoyu Che, Mingda Shan, Cancan Cui, Mei Huang, Renliang Su, Rongxin |
| collection | PubMed - marine biology |
| contents | Rapid fabrication of sustainable bioplastics from phosphorylated cellulose microfibers via hot-press assisted dual crosslinking with enhanced mechanical and thermal properties. Zhang, Shuya Zheng, Gaoyi Zhu, Xiaoyu Che, Mingda Shan, Cancan Cui, Mei Huang, Renliang Su, Rongxin The demand for lightweight and high-strength bio-based sustainable structural materials in food is increasing. However, assembling cellulose microfibers (CMFs) into dense bioplastics with high performance remains challenging because of their strong association with water. In this study, a novel sustainable bioplastic (PMHL) was fabricated from phosphorylated CMFs by combining dual crosslinking strategy (organic acid crosslinking and ionic crosslinking) with hot-press molding. This approach markedly accelerated the assembly of phosphorylated CMFs, reducing the dehydration time by 33.8% and the required pressure by 60.0%. Notably, PMHL exhibited outstanding mechanical performance, with a flexural strength of 321.3 MPa and a flexural modulus of 23.1 GPa, representing 5.65 fold and 15.38 fold increases, respectively, compared with commercial petroleum-based plastics. In addition, PMHL showed good thermal stability, with a coefficient of thermal expansion of only 5 × 10 K, which was advantageous relative to cellulose-based materials. The limiting oxygen index (LOI) of PMHL reached 48.4%, indicating its classification as a difficult-to-ignite material. Compared with the cellulose source, the LOI of PMHL was increased by 2.1 fold, which could be attributed to the dual-crosslinking strategy that promotes the formation of graphitic carbon in the char residue. In addition, PMHL exhibited partial natural biodegradation over a period of 70 d. Given its functionality, processability, and sustainability, PMHL is expected to be a promising candidate to replace conventional petroleum-based plastics. |
| format | Artículo científico |
| id | pubmed_42259406 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | International journal of biological macromolecules |
| record_format | pubmed |
| spellingShingle | Rapid fabrication of sustainable bioplastics from phosphorylated cellulose microfibers via hot-press assisted dual crosslinking with enhanced mechanical and thermal properties. Zhang, Shuya Zheng, Gaoyi Zhu, Xiaoyu Che, Mingda Shan, Cancan Cui, Mei Huang, Renliang Su, Rongxin Rapid fabrication of sustainable bioplastics from phosphorylated cellulose microfibers via hot-press assisted dual crosslinking with enhanced mechanical and thermal properties. Zhang, Shuya Zheng, Gaoyi Zhu, Xiaoyu Che, Mingda Shan, Cancan Cui, Mei Huang, Renliang Su, Rongxin The demand for lightweight and high-strength bio-based sustainable structural materials in food is increasing. However, assembling cellulose microfibers (CMFs) into dense bioplastics with high performance remains challenging because of their strong association with water. In this study, a novel sustainable bioplastic (PMHL) was fabricated from phosphorylated CMFs by combining dual crosslinking strategy (organic acid crosslinking and ionic crosslinking) with hot-press molding. This approach markedly accelerated the assembly of phosphorylated CMFs, reducing the dehydration time by 33.8% and the required pressure by 60.0%. Notably, PMHL exhibited outstanding mechanical performance, with a flexural strength of 321.3 MPa and a flexural modulus of 23.1 GPa, representing 5.65 fold and 15.38 fold increases, respectively, compared with commercial petroleum-based plastics. In addition, PMHL showed good thermal stability, with a coefficient of thermal expansion of only 5 × 10 K, which was advantageous relative to cellulose-based materials. The limiting oxygen index (LOI) of PMHL reached 48.4%, indicating its classification as a difficult-to-ignite material. Compared with the cellulose source, the LOI of PMHL was increased by 2.1 fold, which could be attributed to the dual-crosslinking strategy that promotes the formation of graphitic carbon in the char residue. In addition, PMHL exhibited partial natural biodegradation over a period of 70 d. Given its functionality, processability, and sustainability, PMHL is expected to be a promising candidate to replace conventional petroleum-based plastics. |
| title | Rapid fabrication of sustainable bioplastics from phosphorylated cellulose microfibers via hot-press assisted dual crosslinking with enhanced mechanical and thermal properties. |
| url | https://pubmed.ncbi.nlm.nih.gov/42259406/ |