CIESC Journal ›› 2023, Vol. 74 ›› Issue (7): 3103-3115.DOI: 10.11949/0438-1157.20230320

• Material science and engineering, nanotechnology • Previous Articles     Next Articles

High-efficient preparation of cardanol-based self-healing microcapsules

Wentao WU1(), Liangyong CHU1(), Lingjie ZHANG2, Weimin TAN3, Liming SHEN1, Ningzhong BAO1()   

  1. 1.College of Chemical Engineering, State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
    2.College of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China
    3.CNOOC Changzhou Paint and Coatings Industry Research Institute Co. , Ltd. , Changzhou 213016, Jiangsu, China
  • Received:2023-04-04 Revised:2023-07-05 Online:2023-08-31 Published:2023-07-05
  • Contact: Liangyong CHU, Ningzhong BAO


吴文涛1(), 褚良永1(), 张玲洁2, 谭伟民3, 沈丽明1, 暴宁钟1()   

  1. 1.南京工业大学化工学院,材料化学工程国家重点实验室,江苏 南京 211816
    2.浙江大学材料科学与工程学院,浙江 杭州 310027
    3.中海油常州涂料化工研究院有限公司,江苏 常州 213016
  • 通讯作者: 褚良永,暴宁钟
  • 作者简介:吴文涛(1997—),男,硕士研究生,
  • 基金资助:


The efficient preparation of bio-based microcapsules is of great significance for the development of bio-based self-healing coatings. To solve the issue that traditional petroleum-based surfactants cannot effectively encapsulate biological healing agents such as cardanol-based epoxy resins and curing agents, it is reported that cardanol-based surfactants can be used as an emulsifier in the preparation of microcapsules. Using the solvent evaporation method, bio-based microcapsules with polymethyl methacrylate as the shell have been efficiently prepared. Based on the solvent volatilization mechanism, a hypothesis has been proposed to explain the efficient packaging of cardanol-based emulsifiers. The morphology of the microcapsules was analyzed by scanning electron microscopy, and the stability and size distribution of the microcapsules were analyzed by thermogravimetry and laser particle size analyzer. By systematic optimization of process parameters such as emulsifier concentration, the ratio of core to the wall, stirring speed, and temperature, bio-based microcapsules with controllable particle size, mono dispersibility, and spherical structure were prepared. The results show that the microcapsules prepared at evaporation temperature of 40℃ and core-wall ratio of 1∶1 have better surface morphology, and there are regular effects between emulsifier concentration, stirring speed and average particle size. Moreover, the healing efficiency of the self-healing coating embedded with 20%(mass) bio-based microcapsules reaches 61.25%. The application of bio-based surfactants in the high-efficient preparation of bio-based microcapsules may guide the development of bio-based self-healing coatings and contribute to the replacement of petroleum-based materials with bio-based materials in the coating field.

Key words: cardanol, microcapsule, self-healing, preparation, optimization, biomass



关键词: 腰果酚, 微胶囊, 自愈合, 制备, 优化, 生物质

CLC Number: