기본 정보
연구 분야
프로젝트
발행물
구성원
article|
hybrid
·인용수 0
·2025
Mass-producible Stepwise Thermal Patterning for Bio-inspired Dry Adhesives
H G Park, Minsu Kim, Shuncheng Lee, Moon Kyu Kwak
Journal of the Korean Society for Precision Engineering
초록

Dry adhesives inspired by gecko footpads have garnered considerable attention due to their unique features, including strong yet reversible adhesion, self-cleaning properties, and repeatable use. However, scaling these microstructured adhesives from laboratory fabrication to continuous, high-throughput manufacturing poses significant challenges. In this study, we introduce a stepwise thermal patterning system designed for the scalable production of gecko-inspired dry adhesives on flexible substrates. This automated system combines sequential processes such as plate-to-plate micro-molding, rapid thermal curing, demolding, and roll-up of the patterned film. By raising the curing temperature to approximately 180oC and employing an efficient stepwise imprinting method, we achieve fabrication speeds of up to 150 mm/min without compromising pattern accuracy. The system successfully replicates micropillar structures with a diameter of 15 μm and height of 15 μm, featuring 20 μm mushroom-shaped tips on flexible substrates. The resulting dry adhesives demonstrate stable pull-off strengths of 20-23 N/cm² and retain over 83.5% of their initial adhesion after 100,000 attachment–detachment cycles. These findings highlight the potential of our platform for reliable, high-throughput manufacturing of bio-inspired adhesives, paving the way for various industrial applications such as robotic manipulators, pick-and-place electronic assembly, and wearable devices that require repeated, residue-free attachment.

키워드
AdhesiveFabricationCuring (chemistry)ThermalThermal management of electronic devices and systemsAdhesionPolymer
타입
article
IF / 인용수
- / 0
게재 연도
2025