Lightweight, Flexible and Hydrophobic Cotton Fiber/Silica Aerogel Composite by Freeze-Drying for Organic Solvent/Water Separation and Thermal Insulation

被引:6
|
作者
Huo, Jian-Chun [1 ]
Yang, Hai-Xia [1 ]
Ma, Yuan [1 ]
Bai, Jie [1 ]
机构
[1] Dalian Polytech Univ, Sch Text & Mat Engn, Dalian 116034, Peoples R China
关键词
Flexible Aerogels; Cotton Fiber; Hydrophobicity; Thermal Insulation; SILICA AEROGELS; METHYLTRIMETHOXYSILANE;
D O I
10.1166/sam.2021.4060
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Natural cotton fiber used for reinforcement is low-cost, environmentally friendly, good flexibility and easy to obtain. In this study, a new cotton fiber/silica aerogel composite was developed by sol-gel method via freeze-drying. The obtained composite has excellent flexibility and can be restored to its original state after bending for 180 degrees without obvious cracks. After 20 cycles continuous compression, the total unrecoverable strain loss is only 20% under strain of 60%. The composite also shows very prominent hydrophobicity, and the contact angle with water reaches 145 degrees. It has strong adsorption capacity for organic reagents and oil, with adsorption ratios of 500% and 600%, respectively. In addition, the composite has a low thermal conductivity of 0.038 W/(m . K) at room temperature. The obtained composite exhibits considerable promise in oil-water separation and thermal insulation.
引用
收藏
页码:1820 / 1824
页数:5
相关论文
共 36 条
  • [21] Transparent, robust, and machinable hybrid silica aerogel with a "rigid-flexible" combined structure for thermal insulation, oil/water separation, and self-cleaning
    Ren, Jiafei
    Huang, Xing
    Shi, Jianjun
    Wang, Wei
    Li, Junning
    Zhang, Ying
    Chen, Haikun
    Han, Ruolin
    Chen, Guangxin
    Li, Qifang
    Zhou, Zheng
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2022, 623 : 1101 - 1110
  • [22] The effect of silica aerogel on thermal and sound absorption insulation properties of epoxy plate and glass fiber fabric epoxy composite
    Altay, Pelin
    JOURNAL OF ELASTOMERS AND PLASTICS, 2023, 55 (02): : 316 - 330
  • [23] Preparation of antifouling and highly hydrophobic cellulose nanofibers/alginate aerogels by bidirectional freeze-drying for water-oil separation in the ocean environment
    Liu, Qiuyan
    Liu, Yuanquan
    Feng, Qian
    Chen, ChuChu
    Xu, Zhaoyang
    JOURNAL OF HAZARDOUS MATERIALS, 2023, 441
  • [24] Lightweight polyimide/silica aerogel composite foams and their derived carbon foams for excellent flame retardancy, thermal insulation and EMI shielding performance
    Ni, Long
    Luo, Yinfu
    Shen, Lu
    Qiu, Chen
    Yan, Liwei
    Liang, Mei
    Zhou, Shengtai
    Zou, Huawei
    POLYMER, 2024, 305
  • [25] Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation
    Li, Jian
    Sun, Bohui
    Zuo, Linxuan
    Qu, Linfeng
    Luo, Rui
    Pang, Shengyang
    Hu, Chenglong
    Zhao, Rida
    Liang, Bin
    Cheng, Hui -Ming
    Tang, Sufang
    CARBON, 2024, 218
  • [26] Mechanical performance and thermal stability of glass fiber reinforced silica aerogel composites based on co-precursor method by freeze drying
    Zhou, Ting
    Cheng, Xudong
    Pan, Yuelei
    Li, Congcong
    Gong, Lunlun
    Zhang, Heping
    APPLIED SURFACE SCIENCE, 2018, 437 : 321 - 328
  • [27] Fabrication of highly porous and hydrophobic PVDF/silica aerogel nanofiber membranes via phase separation for enhanced oil/organic solvent absorption
    Youn, Byungwook
    Han, Youngho
    Song, Yeeun
    Lee, Doojin
    MICROPOROUS AND MESOPOROUS MATERIALS, 2024, 368
  • [28] A novel hydrophobic all-biomass aerogel reinforced by dialdehyde carboxymethyl cellulose for oil/organic solvent-water separation
    Zhang, Fengteng
    Wang, Chunhua
    Mu, Changdao
    Lin, Wei
    POLYMER, 2022, 238
  • [29] Carbon Fiber-Silica Aerogel Composite with Enhanced Structural and Mechanical Properties Based on Water Glass and Ambient Pressure Drying
    Slosarczyk, Agnieszka
    NANOMATERIALS, 2021, 11 (02) : 1 - 14
  • [30] The heat and mass transfer performance of facile synthesized silica gel/carbon-fiber based consolidated composite adsorbents developed by freeze-drying method
    Liu, Lin
    Huang, Hongyu
    He, Zhaohong
    Li, Shijie
    Li, Jun
    Chen, Jiechao
    Deng, Lisheng
    Osaka, Yugo
    Kobayashi, Noriyuki
    NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING, 2018, 22 (04) : 255 - 269