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Synthesis of a novel superamphiphobic coating with a hierarchical three-dimensional structure inspired by bird's nest
Abstract Based on the stability of bird's nest multi scaffold structure, a hierarchical three-dimensional bionic structure (Wax-PFDMS-Pal-TiOx coating) with superamphiphobic (SAP) properties, high stiffness and good stability was designed with carnauba wax as barrier and binder, palygorskite (Pal) as structural framework, TiOx as nano filler and 1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane (PFDMS) as modifier. In addition, the morphology, structure and chemical composition of the coating were proved by scanning electron microscope (SEM), atomic force microscopy (AFM), Fourier transform infrared spectrometer (FI-TR), X-ray photoelectron spectroscopy (XPS) and other characterization methods. Studies have demonstrated that the nano-rough structure of Pal and TiOx can form submicron-nano composite hierarchical structure with carnauba wax, and hydrolyze and condense with PFDMS respectively to obtain the three-dimensional structure with high roughness and low surface energy. Under optimal conditions, the contact angles of water and oil on the coating surface are both over 160°. Meanwhile, the results of friction resistance test, salt resistance and pH resistance test show that the coating has excellent mechanical stability. The coating also has excellent self-cleaning property to resist the pollution of particles and mixture of water and oil. The current research is based on natural raw materials and provides a new idea for a stable bionic structure with SAP properties.
Graphical abstract Display Omitted
Highlights The superamphiphobic Wax-Pal/PFDMS-TiOx coating of bionic bird's nest was prepared. The stable three-dimensional and multi-level structure of micro-nano was formed. Natural raw materials carnauba wax and palygorskite are environmentally friendly. Used in self-cleaning field with remarkable mechanical stability and chemical stability. Superamphiphobic mechanism of Wax-Pal/PFDMS-TiOx coating was explained.
Synthesis of a novel superamphiphobic coating with a hierarchical three-dimensional structure inspired by bird's nest
Abstract Based on the stability of bird's nest multi scaffold structure, a hierarchical three-dimensional bionic structure (Wax-PFDMS-Pal-TiOx coating) with superamphiphobic (SAP) properties, high stiffness and good stability was designed with carnauba wax as barrier and binder, palygorskite (Pal) as structural framework, TiOx as nano filler and 1H, 1H, 2H, 2H-Perfluorodecyltrimethoxysilane (PFDMS) as modifier. In addition, the morphology, structure and chemical composition of the coating were proved by scanning electron microscope (SEM), atomic force microscopy (AFM), Fourier transform infrared spectrometer (FI-TR), X-ray photoelectron spectroscopy (XPS) and other characterization methods. Studies have demonstrated that the nano-rough structure of Pal and TiOx can form submicron-nano composite hierarchical structure with carnauba wax, and hydrolyze and condense with PFDMS respectively to obtain the three-dimensional structure with high roughness and low surface energy. Under optimal conditions, the contact angles of water and oil on the coating surface are both over 160°. Meanwhile, the results of friction resistance test, salt resistance and pH resistance test show that the coating has excellent mechanical stability. The coating also has excellent self-cleaning property to resist the pollution of particles and mixture of water and oil. The current research is based on natural raw materials and provides a new idea for a stable bionic structure with SAP properties.
Graphical abstract Display Omitted
Highlights The superamphiphobic Wax-Pal/PFDMS-TiOx coating of bionic bird's nest was prepared. The stable three-dimensional and multi-level structure of micro-nano was formed. Natural raw materials carnauba wax and palygorskite are environmentally friendly. Used in self-cleaning field with remarkable mechanical stability and chemical stability. Superamphiphobic mechanism of Wax-Pal/PFDMS-TiOx coating was explained.
Synthesis of a novel superamphiphobic coating with a hierarchical three-dimensional structure inspired by bird's nest
Chen, Yuanyuan (author) / Liu, Weiyi (author) / Xu, Chang (author) / Liu, Yan (author) / He, Jinsong (author) / Tian, Dong (author) / Long, Lulu (author) / Yang, Gang (author) / Zhang, Xiaohong (author) / Zhang, Yanzong (author)
Applied Clay Science ; 204
2021-02-13
Article (Journal)
Electronic Resource
English
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