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| Research on the Preparation and Performances of Modified Nano-titanium Dioxide Chitosan Quaternary Ammonium Salt Hydrophobic and Antibacterial Paper |
| Received:November 03, 2024 Revised:November 21, 2024 |
| DOI：10.11981/j.issn.1000-6842.2025.03.85 |
| Key Words:antibacterial paper;antibacterial performance;modification;hydrophobic performance |
| Fund Project:国家重点研发计划（2023YFD2200504-2）。 |
| Author Name | Affiliation | Postcode | | LI Bin* | School of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | HAN Jingfeng | School of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | TAO Shaoqu | School of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | ZHANG Zhen | School of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | XU Xinying | School of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 | | YAO Chunli* | School of Materials Science and Technology， Beijing Forestry University， Beijing， 100083 | 100083 |
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| Abstract: |
| In this study， cetyltrimethoxysilane （HDTMS） was employed to modify nano-titanium dioxide （n-TiO2）， and HDTMS-n-TiO2 was obtained， which was incorporated with chitosan quaternary ammonium salt （HACC） via a layer-by-layer assembly technique onto bamboo fibers. The producing HACC/HDTMS-n-TiO2 membrane-coated bamboo fibers were used to fabricate a high hydrophobic and antibacterial paper. The surface morphology， elemental composition， chemical structure， mechanical properties， and hydrophobic performance of the antibacterial paper were systematically characterized. The results demonstrated that when the number of HACC/HDTMS-n-TiO2 membrane reached 8， the tensile index of the hydrophobic and antibacterial paper attained 45.0 N·m/g. Moreover， after immersion in acid or alkali solutions for 5 h， the water contact angle remained over 110°. The antibacterial tests revealed that the paper coated with 8 layers of HACC/HDTMS-n-TiO2 achieved antibacterial rates exceeding 98% against both E.coli and S.aureus. These findings indicated that the high hydrophobic and antibacterial paper exhibited significant potential for application in food packaging. |
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