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Nano Research 2023, 16(5): 7810-7819 https://doi.org/10.1007/s12274-023-5563-8
Research Article | Issue | Published: 14 March 2023

Robust UV/moisture dual curable PDMS-microcapsule-silica functional material for self-healing, antifouling, and antibacterial applications

Show Author's Information Nan Zheng1,2,  Jie Liu1( ),  Guoqing Wang2,  Pan Yao1,  Lihong Dang3,  Ze Liu1,  Jiufu Lu1,  Wenge Li4( )
Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Science, Shaanxi University of Technology, Hanzhong 723001, China
State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, China
School of Biological Sciences and Engineering, Shaanxi University of Technology, Hanzhong 723001, China
Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China
Keywords:
antibacterial, self-healing microcapsules, micro-nano hierarchical structure, antifouling, ultraviolet (UV)/moisture dual curing mechanism
Topics:
Coatings Nanostructured materialsNanostructuresSurface morphologySurface structure
Cite this article:
Zheng N, Liu J, Wang G, et al. Robust UV/moisture dual curable PDMS-microcapsule-silica functional material for self-healing, antifouling, and antibacterial applications. Nano Research, 2023, 16(5): 7810-7819. https://doi.org/10.1007/s12274-023-5563-8
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Abstract Full text Electronic supplementary material About this article

Polydimethylsiloxane containing methacryloyloxy and methoxy silane groups (MAPDMS)-microcapsule-SiO2 (MPMS) functional materials were prepared by constructing micro-nano hierarchical structures on the surface of MAPDMS matrix. Herein, MAPDMS@1,1-stilbene-modified hydrolyzed polyglycidyl methacrylate/graphene oxide/dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride (MAPDMS@PGMAm/GO/QC18) self-healing microcapsules with compact multi-shell structure were synthesized and combined with nano-SiO2 to construct the hierarchical structures. Furthermore, ultraviolet (UV)/moisture dual curing mode was introduced into deep curing reaction and efficient self-healing reaction of the MPMS. The results show that the introduction of UV/moisture dual curing mode and micro-nano hierarchical structure gives MPMS functional materials excellent mechanical properties, antifouling properties, self-healing properties, and antibacterial properties. The shear strength and tensile strength of MPMS increase from 3.32 and 4.26 MPa of MAPDMS to 3.81 and 5.06 MPa, respectively. Its static contact angle increases from 115.9° of MAPDMS to 156.5°, and its slide angle decreases from 68.5° of MAPDMS to 7.8°, respectively. The antifouling performance of MPMS against seawater, soy sauce, juice, coffee, protein, and other contaminants is effectively improved compared with MAPDMS matrix. At the same time, the tensile strength and elongation at break of MPMS after healing reach 98.22% and 96.57% of those in original state, respectively. In addition, the antibacterial rates of MPMS against Escherichia coli and Staphylococcus aureus reach 99.85% and 100%, respectively. The MPMS prepared in this paper is expected to be widely used in marine antifouling, pipeline network, anti-icing, microfluidics, wearable devices, medical devices, electrochemical biosensors, and other fields.


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About this article

Robust UV/moisture dual curable PDMS-microcapsule-silica functional material for self-healing, antifouling, and antibacterial applications

Show Author's information Nan Zheng1,2, Jie Liu1( ), Guoqing Wang2, Pan Yao1, Lihong Dang3, Ze Liu1, Jiufu Lu1, Wenge Li4( )
Shaanxi Key Laboratory of Catalysis, School of Chemical and Environmental Science, Shaanxi University of Technology, Hanzhong 723001, China
State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, China
School of Biological Sciences and Engineering, Shaanxi University of Technology, Hanzhong 723001, China
Merchant Marine College, Shanghai Maritime University, Shanghai 201306, China

Abstract

Polydimethylsiloxane containing methacryloyloxy and methoxy silane groups (MAPDMS)-microcapsule-SiO2 (MPMS) functional materials were prepared by constructing micro-nano hierarchical structures on the surface of MAPDMS matrix. Herein, MAPDMS@1,1-stilbene-modified hydrolyzed polyglycidyl methacrylate/graphene oxide/dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride (MAPDMS@PGMAm/GO/QC18) self-healing microcapsules with compact multi-shell structure were synthesized and combined with nano-SiO2 to construct the hierarchical structures. Furthermore, ultraviolet (UV)/moisture dual curing mode was introduced into deep curing reaction and efficient self-healing reaction of the MPMS. The results show that the introduction of UV/moisture dual curing mode and micro-nano hierarchical structure gives MPMS functional materials excellent mechanical properties, antifouling properties, self-healing properties, and antibacterial properties. The shear strength and tensile strength of MPMS increase from 3.32 and 4.26 MPa of MAPDMS to 3.81 and 5.06 MPa, respectively. Its static contact angle increases from 115.9° of MAPDMS to 156.5°, and its slide angle decreases from 68.5° of MAPDMS to 7.8°, respectively. The antifouling performance of MPMS against seawater, soy sauce, juice, coffee, protein, and other contaminants is effectively improved compared with MAPDMS matrix. At the same time, the tensile strength and elongation at break of MPMS after healing reach 98.22% and 96.57% of those in original state, respectively. In addition, the antibacterial rates of MPMS against Escherichia coli and Staphylococcus aureus reach 99.85% and 100%, respectively. The MPMS prepared in this paper is expected to be widely used in marine antifouling, pipeline network, anti-icing, microfluidics, wearable devices, medical devices, electrochemical biosensors, and other fields.

Keywords: antibacterial, self-healing microcapsules, micro-nano hierarchical structure, antifouling, ultraviolet (UV)/moisture dual curing mechanism

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Publication history
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Acknowledgements

Publication history

Received: 14 January 2023
Revised: 02 February 2023
Accepted: 08 February 2023
Published: 14 March 2023
Issue date: May 2023

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 52003148), the State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University (No. MRUKF2021023), the Key Research and Development Project of Shaanxi Province (No. 2023-YBGY-475), the Key Scientific Research Project of Education Department of Shaanxi Province (No. 22JS003), the Industrialization Project of the State Key Laboratory of Biological Resources and Ecological Environment (Cultivation) of Qinba Region (No. SXC-2310), and the start-up funds from the Shaanxi University of Technology (No. SLGRCQD2004).

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