碳纤维<strong>/</strong>二硫化钼改性纤维素复合气凝胶的制备及其吸声性能

doi:10.11901/1005.3093.2026.119

材料研究学报

2026, Vol. 40

Issue (7): 528-534 DOI: 10.11901/1005.3093.2026.119

研究论文

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碳纤维/二硫化钼改性纤维素复合气凝胶的制备及其吸声性能

赵俊杰¹, 明孝¹, 刘倩倩¹, 曾小平¹, 王大威¹, 王玮², 吴江渝¹(

)

^1.武汉工程大学材料科学与工程学院等离子体化学与新材料湖北省重点实验室武汉 430205
^2.华中科技大学材料成形与模具技术国家重点实验室武汉 430074

Preparation and Sound Absorption of Carbon Fiber/MoS₂-modified Cellulose Composite Aerogel

ZHAO Junjie¹, MING Xiao¹, LIU Qianqian¹, ZENG Xiaoping¹, WANG Dawei¹, WANG Wei², WU Jiangyu¹(

)

^1.Wuhan Institute of Technology Materials Science and Engineering, Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan 430205, China
^2.Huazhong University of Science and Technology, State Key Laboratory of Materials Processing and Die & Mould Technology, Wuhan 430074, China

引用本文:

赵俊杰, 明孝, 刘倩倩, 曾小平, 王大威, 王玮, 吴江渝. 碳纤维/二硫化钼改性纤维素复合气凝胶的制备及其吸声性能[J]. 材料研究学报, 2026, 40(7): 528-534.
Junjie ZHAO, Xiao MING, Qianqian LIU, Xiaoping ZENG, Dawei WANG, Wei WANG, Jiangyu WU. Preparation and Sound Absorption of Carbon Fiber/MoS₂-modified Cellulose Composite Aerogel[J]. Chinese Journal of Materials Research, 2026, 40(7): 528-534.

全文: PDF(12073 KB) HTML

摘要:

在纤维素气凝胶基体中掺杂碳纤维和二硫化钼制备出改性纤维素复合气凝胶(MCA，吸声材料)，用万能实验机和双麦克风阻抗管等设备对其表征并研究了吸声性能。结果表明：在这种吸声材料中，碳纤维穿插在羧甲基纤维素片层之间构建刚性纤维支架，二硫化钼分布在羧甲基纤维素片层产生了大量异质界面。这些因素，使这种吸声材料的机械性能提高并将其吸声频段拓宽。在保持MCA的低密度(< 0.06 g/cm³)和高孔隙率(> 97.60%)的同时，应变为70%时产生的压缩应力为0.131 MPa，比基体提高了104.7%。这种MCA在1000~5500 Hz频段吸声系数在0.7以上，最高可达0.99。特别是在中频段(~1250 Hz)，其吸声系数从基体的0.56提高到0.8。

关键词 ：复合材料, 气凝胶, 羧甲基纤维素, 二硫化钼, 吸声性能

Abstract：

Noise pollution has been a potential hazard affecting human health. In this paper, a sound-absorbing material based on modified cellulose composite aerogel (MCA) was prepared with cellulose aerogel serving as the matrix, carbon fibers and MoSi₂particulates as doping material. Carbon fibers can intercalate in between the layers of carboxymethyl cellulose to construct rigid fiber scaffolds, while MoSi₂ particulates disperse on the layers of carboxymethyl cellulose to form a large number of heterogeneous interfaces. This not only improves the mechanical properties of the material but also broadens its sound-absorbing frequency range. The prepared MCA was characterized by means of universal testing machine and two-microphone impedance tube etc. The results show that the MCA maintains a low density (< 0.06 g/cm³) and high porosity (> 97.60%), while its compressive stress at 70% strain reaches 0.131 MPa, with a 104.7% increasement compared with the unmodified aerogel. The MCA has a sound-absorbing coefficient of over 0.7 in the frequency range of 1000-5500 Hz, with a maximum value of 0.99. In particular, its sound-absorbing coefficient in the mid-frequency range (~1250 Hz) increases from 0.56 to 0.8, representing an increase rate of 42.9% in contrast to the plain aerogel.

Key words： composite aerogel carboxymethyl cellulose molybdenum disulfide sound absorption performance

收稿日期: 2026-02-04

ZTFLH:

TB332

基金资助:湖北省武汉工程大学研究生创新基金(CX2024330)

通讯作者: 吴江渝，教授，wujy@wit.edu.cn，研究方向为智能响应材料

Corresponding author: WU Jiangyu, Tel: (027)87195661, E-mail: wujy@wit.edu.cn

作者简介: 赵俊杰，男，2001年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2026.119 或 https://www.cjmr.org/CN/Y2026/V40/I7/528

图1 纤维素气凝胶的SEM照片

图2 MoS2改性前后气凝胶孔隙壁的SEM照片

图3 CMC/CF-1/MoS2-0.75气凝胶的EDS照片

图4 CF含量和MoS2含量对改性纤维素气凝胶密度和孔隙率的影响

图5 纤维素气凝胶的应力应变曲线

图6 纤维素气凝胶的TGA热重曲线

图7 CF含量和MoS2含量对改性纤维素气凝胶吸声系数的影响

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