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| Preparation of Hydrophobic Cellulose-based Foam Materials with Thermal Insulation and Flame Retardant Properties |
| Received:May 30, 2025 Revised:June 27, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.10.019 |
| Key Words:bamboo pulp fiber micro-fibrillated cellulose attapulgite thermal insulation flame retardant |
| Fund Project:国家自然科学基金项目（22178209）；陕西省重点研发计划项目（2024NC-YBXM-259）；陕西省自然科学基础研究计划（2024JC-YBMS-140）。 |
| Author Name | Affiliation | Postcode | | ZHAO Qinyu* | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021 | 710021 | | XUE Bailiang* | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021 | 710021 | | BAI Ting | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021 | 710021 | | ZHENG Xinyi | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021 | 710021 | | WANG Wenliang | College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi’an, Shaanxi Province, 710021 | 710021 |
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| Abstract:In this study， bamboo pulp fiber and micro-fibrillated cellulose (MFC)， and modified attapulgite (ATP) were used as raw materials to fabricate a hydrophobic， flame retardant cellulose-based foam materials with excellent mechanical properties and thermal insulation through aqueous foaming and atmospheric drying techniques， combined with the method of chemical vapor deposition. The results showed that increasing the modified ATP content， the surface roughness and mechanical properties of cellulose-based foam material were improved. At an optimal modified ATP content of 80%， the cellulose-based foam material achieved a compressive strength of 186.01 kPa and an elastic modulus of 93.44 kPa. At the same time， this cellulose-based foam material also demonstrated excellent flame retardant and thermal insulation properties. After 60 s of combustion， the mass loss rate of cellulose-based foam material was 4.31%. Following 30 min of heating at 150 ℃， the temperature difference between the top of the cellulose-based foam material and the heating platform reached 106.2 ℃， with a thermal conductivity of 37.06 kW/(m·K). Moreover， the cellulose-based foam material modified by chemical vapor deposition method demonstrated remarkable hydrophobicity， with water contact angles of 134.8°(surface) and 132.5°(internal)， possessed excellent hydrophobicity and self-cleaning capability. |
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