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Flexible Multifunctional Self-Expanding Electrospun Polyacrylic Acid Covalently Cross-Linked Polyamide 66 Nanocomposite Fiber Membrane with Excellent Oil/Water Separation and High pH Stability Performances

Author

Listed:
  • Jiangyi Yan

    (College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316000, China)

  • Lihong Nie

    (College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316000, China)

  • Guiliang Li

    (Sinopec Zhongyuan Oilfield Company, Petroleum Engineering Technology Research Institute, Puyang 457000, China)

  • Wenxin Wu

    (The Fourth Branch of China Petroleum Pipeline Engineering Co., Ltd., Langfang 065000, China)

  • Ming Gao

    (China College of Naval Architecture and Shipping, Zhejiang Ocean University, Zhoushan 316000, China)

  • Yuanlu Zhu

    (China College of Naval Architecture and Shipping, Zhejiang Ocean University, Zhoushan 316000, China)

  • Weixing Wu

    (College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316000, China)

  • Beifu Wang

    (College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan 316000, China)

Abstract

In this paper, we report for the first time the successful formation of a covalent cross-linking structure between polyacrylic acid and polyamide 66 in an electrospun nanofiber membrane by the facilitated amidation reaction using N-Hydroxy-succinimide (NHS) and N-(3-Dimethylaminopropyl)-N’-ethyl-carbodiimide hydrochloride (EDC). The structure and properties of the fiber membrane are characterized using scanning electron microscopy, wide field X-ray diffraction and differential scanning calorimetry. The results show that the presence of the cross-linked structure not only affects the construction of the nanofiber network framework but also influences the pore size distribution and size of the fiber membrane surface, which in turn affects its retention of contaminants and water absorption performance. After modification, the cross-linked membranes exhibited a significant retention performance of up to 77% for methyl tert-butyl ether (MTBE) with a reduced pure water flux. Furthermore, after crosslinking, the fiber membrane has been strongly enhanced with more stable pH response behavior.

Suggested Citation

  • Jiangyi Yan & Lihong Nie & Guiliang Li & Wenxin Wu & Ming Gao & Yuanlu Zhu & Weixing Wu & Beifu Wang, 2022. "Flexible Multifunctional Self-Expanding Electrospun Polyacrylic Acid Covalently Cross-Linked Polyamide 66 Nanocomposite Fiber Membrane with Excellent Oil/Water Separation and High pH Stability Perform," Sustainability, MDPI, vol. 14(21), pages 1-16, October.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:21:p:14097-:d:956805
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