研究目的
Investigating the dielectric strength of Parylene C films under wet conditions after storage in 60°C saline solution and autoclaving.
研究成果
Autoclaving and storage in saline solution at 60°C significantly reduce the dielectric strength of Parylene C by about 50%, which must be considered for its use in electrical active implants. The short storage time at 60°C suggests rapid degradation, indicating potential issues for long-term stability.
研究不足
The study shows high variance in results after treatments, and the mechanisms behind the decrease in dielectric strength are not fully explained. Further investigations are needed to understand the effects of delamination or chemical changes.
1：Experimental Design and Method Selection:
The study involved preparing samples with Parylene C coatings on glass substrates, subjecting them to different treatments (autoclaving and storage in PBS at 60°C), and measuring breakdown voltage to assess dielectric strength. A linear voltage ramp was applied until breakdown occurred.
2：Sample Selection and Data Sources:
Samples were built on square glass substrates with titanium deposition. Parylene C was deposited using a specific coater, and samples were checked for integrity before measurements.
3：List of Experimental Equipment and Materials:
Glass substrates, titanium sputtering equipment, Parylene deposition unit, PECVD unit, PBS solution, electrodes, alligator clips, voltage source.
4：Experimental Procedures and Operational Workflow:
Samples were coated, treated (autoclaved or stored in PBS), and breakdown voltage was measured by applying an alternating voltage and monitoring current.
5：Data Analysis Methods:
Mean breakdown voltages and standard deviations were calculated for different treatment groups, and results were compared to literature values.
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