| The role of water transport in the failure of silicone rubber coating for implantable electronic devices | |
| Du, Shiyao1,2; Zhang, Yang1,2; Meng, Meijiang1; Tang, Ao1; Li, Ying1,3 | |
| Corresponding Author | Tang, Ao(a.tang@imr.ac.cn) ; Li, Ying(liying@imr.ac.cn) |
| 2021-10-01 | |
| Source Publication | PROGRESS IN ORGANIC COATINGS
 |
| ISSN | 0300-9440 |
| Volume | 159Pages:10 |
| Abstract | Implantable electronic devices (IEDs) are increasingly used in medical treatment and diagnose for physiological monitoring. However, encapsulation of IEDs still faces significant challenges as full prevention of body fluid penetration into the coating remains unsolved. To enable an extended lifecycle for IEDs, the impact of water transport on the failure mechanism of silicone rubber coating was systematically investigated in this study. Water absorption and morphology characterization firstly illustrate the water diffusion model and demonstrate the presence of cracks inside the silicone rubber coating, respectively. Subsequent electrochemical characterizations further verify a three-step water penetration behavior in the coating/substrate system, and meanwhile quantify the crack growth and evolution. By further experimental and finite element studies, it is proved that crack propagation is responsible for coating failure in IEDs, while a comprehensive failure mechanism of medical silicone rubber coating in simulated body fluid is also uncovered in a detailed manner for the first time. Such a clear elucidation of failure mechanism for silicone rubber coating is greatly beneficial for future packaging material design for IEDs. |
| Keyword | Organic coatings Failure mechanism Implantable electronic devices Water transfer EIS Finite element analysis |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1016/j.porgcoat.2021.106419 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51871227] |
| WOS Research Area | Chemistry ; Materials Science |
| WOS Subject | Chemistry, Applied ; Materials Science, Coatings & Films |
| WOS ID | WOS:000696955000004 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/167042 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Tang, Ao; Li, Ying |
| Affiliation | 1.Chinese Acad Sci, Corros Ctr, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Technol, Wenhua Rd 72, Shenyang 110016, Peoples R China 3.Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China |
| Recommended Citation GB/T 7714 | Du, Shiyao,Zhang, Yang,Meng, Meijiang,et al. The role of water transport in the failure of silicone rubber coating for implantable electronic devices[J]. PROGRESS IN ORGANIC COATINGS,2021,159:10. |
| APA | Du, Shiyao,Zhang, Yang,Meng, Meijiang,Tang, Ao,&Li, Ying.(2021).The role of water transport in the failure of silicone rubber coating for implantable electronic devices.PROGRESS IN ORGANIC COATINGS,159,10. |
| MLA | Du, Shiyao,et al."The role of water transport in the failure of silicone rubber coating for implantable electronic devices".PROGRESS IN ORGANIC COATINGS 159(2021):10. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment