| 李婧曼,杨伟丽,王晓军,姜展,张元明.纤维素基空气过滤材料的制备及性能研究[J].中国造纸,2025,44(10):209-216 |
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| 纤维素基空气过滤材料的制备及性能研究 |
| Preparation and Performance Study of Cellulose-based Air Filtration Materials |
| 收稿日期：2025-07-01 修订日期：2025-07-30 |
| DOI：10.11980/j.issn.0254-508X.2025.10.023 |
| 关键词: 纤维素基气凝胶 化学交联 弹性 空气过滤 |
| Key Words:cellulose-based aerogels chemical crosslinking elasticity air filtration |
| 基金项目:山东省自然科学基金（ZR2023QB276）。 |
| 作者 | 单位 | 邮编 | | 李婧曼* | 青岛大学纺织服装学院,山东青岛,266071 | 266071 | | 杨伟丽 | 青岛钢研纳克检测防护技术有限公司,山东青岛,266700 | 266700 | | 王晓军* | 青岛大学纺织服装学院,山东青岛,266071 | 266071 | | 姜展 | 青岛大学纺织服装学院,山东青岛,266071 | 266071 | | 张元明* | 青岛大学纺织服装学院,山东青岛,266071 | 266071 |
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| 摘要:本研究采用TEMPO氧化法制备的纳米纤维素（TCNF）、机械法制备的微米纤维素（MFC）以及聚乙烯醇（PVA）为原料制备气凝胶。为进一步提升其力学性能，利用3-缩水甘油丙氧基三甲氧基硅烷（GPTMS）和聚乙烯亚胺（PEI）对气凝胶纤维进行改性。改性后的气凝胶表现出优异的弹性，在50%应变条件下经50次循环压缩后，其塑性形变仍低于5%。此外，成功制备出具备双层结构的空气过滤材料，与单层材料相比，双层结构材料的过滤性能明显更优，其综合性能指标为：过滤效率达到77.67%，压降为122 Pa，质量因子为0.013 Pa-1。 |
| Abstract:In this study， aerogels were prepared using TEMPO-oxidized nanocellulose (TCNF)， mechanically prepared microcellulose (MFC)， and polyvinyl alcohol (PVA) as raw materials. To further enhance mechanical performance， the aerogel fibers were modified with 3-glycidoxypropyltrimethoxysilane (GPTMS) and polyethyleneimine (PEI). The modified aerogels exhibited excellent elasticity， with plastic deformation remaining below 5% after 50 compression cycles at 50% strain. In addition， the air filtration material with double-layer structure had been successfully prepared. Compared with single-layer materials， the double-layer structured materials exhibited significantly superior filtration performance. The comprehensive performance indicators were as follows： the filtration efficiency reached 77.67%， the pressure drop was 122 Pa， and the quality factor was 0.013 Pa⁻¹. |
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