SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 54 ›› Issue (2): 80-88.DOI: 10.1016/j.cjche.2022.09.004

• Full Length Article • 上一篇    下一篇

Eco-friendly biodegradable polyurethane based coating for antibacterial and antifouling performance

Abid Ali1, Bilal Ul Amin1, Wenwu Yu2, Taijiang Gui3, Weiwei Cong3, Kai Zhang3, Zheming Tong1, Jiankun Hu1, Xiaoli Zhan1,4, Qinghua Zhang1,4   

  1. 1. College of Chemical and Biological Engineering, Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou 310027, China;
    2. Institute of Mold Technology, Changzhou Vocational Institute of Mechatronic Technology, Changzhou 213164, China;
    3. State Key Laboratory of Marine Coatings, Marine Chemical Research Institute Co. Ltd, Qingdao 266072, China;
    4. Quzhou Research Institute, Zhejiang University, Quzhou 324000, China
  • 收稿日期:2021-12-31 修回日期:2022-09-20 出版日期:2023-02-28 发布日期:2023-05-11
  • 通讯作者: Xiaoli Zhan,E-mail:xlzhan@zju.edu.cn;Qinghua Zhang,E-mail:qhzhang@zju.edu.cn
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (21878267).

Eco-friendly biodegradable polyurethane based coating for antibacterial and antifouling performance

Abid Ali1, Bilal Ul Amin1, Wenwu Yu2, Taijiang Gui3, Weiwei Cong3, Kai Zhang3, Zheming Tong1, Jiankun Hu1, Xiaoli Zhan1,4, Qinghua Zhang1,4   

  1. 1. College of Chemical and Biological Engineering, Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, Zhejiang University, Hangzhou 310027, China;
    2. Institute of Mold Technology, Changzhou Vocational Institute of Mechatronic Technology, Changzhou 213164, China;
    3. State Key Laboratory of Marine Coatings, Marine Chemical Research Institute Co. Ltd, Qingdao 266072, China;
    4. Quzhou Research Institute, Zhejiang University, Quzhou 324000, China
  • Received:2021-12-31 Revised:2022-09-20 Online:2023-02-28 Published:2023-05-11
  • Contact: Xiaoli Zhan,E-mail:xlzhan@zju.edu.cn;Qinghua Zhang,E-mail:qhzhang@zju.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21878267).

摘要: Biofouling, which comprises the absorption of proteins and the adhesion of bacteria to the surface of living entities, is a severe concern for the maritime sector since it ultimately leads to hydrodynamic drag, resulting in a higher increase in fuel consumption. As a result, polymer resins are crucial in the marine sector for anti-biofouling coatings. In this work, the poly(caprolactone-ethylene glycol-caprolactone)-polyurethane (PECL-PU) are prepared through ε-caprolactone (CL), poly(ethylene glycol) (PEG), 4,4'-methylene bis(cyclohexyl isocyanate) and 1,4 butanediol. Our study demonstrate that the PECL-PU copolymer degraded in artificial seawater (5.21%), enzymatic solution (12.63%), and seawater (13.75%) due to the presence of PEG segments in the laboratory-based test under static condition. Because the addition of PEG segments are increased the polymer's amorphous area and decreased the crystallization of the polycaprolactone (PCL) in the copolymer, as demonstrated by differential scanning calorimetry, X-ray diffraction, and water contact angle studies. Therefore, the hydrolysis rates of PECL-PU were higher than the caprolactone-co-polyurethane (CL-PU). The antifouling test showed that PECL-PU3 copolymer had about 90.29% protein resistance, 85.2% Escherichia coli (E. coli) reduction and 94.61% marine diatom Navicula incerta reduction comparison to the control. We have developed an eco-friendly and inexpensive promising degradable polyurethane for reduction of bacterial biofilm, which can preserve the formation of biofouling on marine coating under practical sea conditions.

关键词: Caprolactone, PEG segments, Biodegradable polyurethane, Biofouling, Hydrolytic degradation

Abstract: Biofouling, which comprises the absorption of proteins and the adhesion of bacteria to the surface of living entities, is a severe concern for the maritime sector since it ultimately leads to hydrodynamic drag, resulting in a higher increase in fuel consumption. As a result, polymer resins are crucial in the marine sector for anti-biofouling coatings. In this work, the poly(caprolactone-ethylene glycol-caprolactone)-polyurethane (PECL-PU) are prepared through ε-caprolactone (CL), poly(ethylene glycol) (PEG), 4,4'-methylene bis(cyclohexyl isocyanate) and 1,4 butanediol. Our study demonstrate that the PECL-PU copolymer degraded in artificial seawater (5.21%), enzymatic solution (12.63%), and seawater (13.75%) due to the presence of PEG segments in the laboratory-based test under static condition. Because the addition of PEG segments are increased the polymer's amorphous area and decreased the crystallization of the polycaprolactone (PCL) in the copolymer, as demonstrated by differential scanning calorimetry, X-ray diffraction, and water contact angle studies. Therefore, the hydrolysis rates of PECL-PU were higher than the caprolactone-co-polyurethane (CL-PU). The antifouling test showed that PECL-PU3 copolymer had about 90.29% protein resistance, 85.2% Escherichia coli (E. coli) reduction and 94.61% marine diatom Navicula incerta reduction comparison to the control. We have developed an eco-friendly and inexpensive promising degradable polyurethane for reduction of bacterial biofilm, which can preserve the formation of biofouling on marine coating under practical sea conditions.

Key words: Caprolactone, PEG segments, Biodegradable polyurethane, Biofouling, Hydrolytic degradation