期刊
ACS APPLIED MATERIALS & INTERFACES
卷 10, 期 49, 页码 43122-43130出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b18141
关键词
flexible cover window; ceramic-like strength; polymer-like modulus; urethane-methacrylate-siloxane hybrid; molecular hybridization
资金
- National Research Foundation of Korea (NRF) - Korean Government (MSIP) [NRF-2016R1A5A1009926]
- Korea Evaluation Institute of Industrial Technology [10051337]
- Wearable Platform Materials Technology Center (WMC)
- Korea Evaluation Institute of Industrial Technology (KEIT) [10051337] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Any transition toward an era of flexible electronics will have to overcome the mechanical limitations of materials. Specifically, the attainment of both strength and flexibility, which are generally mutually exclusive, is required including glass-like wear resistance, plastic-like compliance, and a high level of strain. Here, we fabricate a urethane-methacrylate-siloxane hybrid (UMSH) material. It is found that UMSH, with molecule-level hybridization of urethane linkage and methacrylat-siloxane conetworks, demonstrates ceramic-like high strength (574 MPa), yet polymer-like low modulus (8.42 GPa), and even high strain (6.3%) at fracture with excellent optical transparency. This combination of high strength, flexibility, and optical transparency indicates that this is a suitable material for glass substitution and can be used as a transparent flexible cover window for foldable display.
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