Flexible and cracked polymer membrane for thermal-expansive reversible fuses using three-dimensional groove patterns

• Published in: Express polymer letters 2022-07, Vol.16 (7), p.694-704
• Main Authors: Ko, Byeongjo, Shin, Sanghun, So, Hongyun
• Format: Article
• Language: English
• Subjects: 3-D printers; Circuit protection; Cooling; Curing agents; Elastomers; Electric fuses; Electrodes; Grooves; Heat; industrial applications; Manufacturing; Methods; Nanowires; Ohmic dissipation; Overheating; Oxygen plasma; Polydimethylsiloxane; polymer membranes; Polymers; Prepolymers; Resistance heating; Silicone resins; Siloxanes; smart polymers; Temperature profiles
• ISSN: 1788-618X; 1788-618X
• DOI: 10.3144/expresspolymlett.2022.51

[...]by applying the repetitive temperature profile between 35 °C and the cut-off temperature, the reversible performance of the TRFs was demonstrated by the cut-off and reconnection processes. [...]as the devices block the increase in current caused by Joule heating, it is difficult to inhibit the overheating of electrical devices in a system where a constant current and voltage are applied. [...]a novel and straightforward fabrication method is required to implement a current cut-off mechanism that can react to the temperature of the heat source even with constant electrical inputs to protect the operating devices and circuits from overheating. [...]each surface of the silicon chip and the bottom of the body were treated with oxygen plasma to bond together. A polydimethyl-siloxane (PDMS) mixture (prepolymer: curing agent = 10:1, Sylgard 184 Silicone Elastomer Kit, Dow Corning, Midland, Michigan, USA) was poured into the printed mold and baked in an oven (JSVO-60T, JS Research Inc., Gongju, South Korea) at 50 °C for 12 h, followed by separation of the cured body using a tweezer.