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| Preparation and Properties of a Novel Paper-based Desiccant Material |
| Received:November 13, 2025 Revised:December 04, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.05.004 |
| Key Words:paper-based dehumidification material sodium polyacrylate resin moisture absorption rate cycling stability |
| Fund Project:中央高校基本科研业务费专项资金。 |
| Author Name | Affiliation | Postcode | | LU Zhifeng* | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | XU Guilong* | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
2National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | TANG Min | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
2National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | SONG Qiang | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
2National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 | | LIANG Yun | 1School of Light Industry and Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640
2National Engineering Research Center of Papermaking and Pollution Control, South China University of Technology, Guangzhou, Guangdong Province, 510640 | 510640 |
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| Abstract:This study presented a novel paper-based desiccant material fabricated through a wet-forming process. A porous fibrous substrate was first prepared from bamboo pulp, glass fibers, and dual-melting-point polyethylene terephthalate (PET) fibers, and then impregnated with sodium polyacrylate (PAAS) resin. The effects of fiber composition, hot-pressing time, and PAAS retention on the material’s structure and properties were systematically investigated. Results showed that the optimal performance was achieved with a mass ratio of 4∶3∶3 for the dual-melting-point PET fibers, bamboo pulp, and chopped glass fibers, respectively, after hot-pressing at 92 ℃ for 8 min and with a resin retention of 140%, exhibited optimal overall performance. Its tensile index was 29.5 N·m/g, stiffness 1.22 mN·m, and burst strength 149 kPa. Under conditions of 30 ℃ and 90% relative humidity (RH), the equilibrium moisture absorption rate reached 76%. After moisture absorption, the tensile index, stiffness, and burst strength were maintained at 7.44 N·m/g, 0.70 mN·m, and 149 kPa, respectively, along with demonstrating good low-temperature moisture release characteristics. Remarkably, its moisture absorption capacity remained virtually unchanged over 50 absorption-desorption cycles, indicating exceptional cycling stability. |
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