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인장강도와 잉크의 점도에 따른 유연 폴리머 표면의 액적 거동 분석
함채원(Chaewon Hahm),송여령(Yeoryeong Song),주민경(Mingyeong Joo),문혁균(Hyeokgyun Moon),이진기(Jinkee Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
The purpose of this study is to investigate the impact behavior of droplets according to the tensile strength and the droplet behavior according to the ink characteristics and impact time. Theoretically, the relationship between the surface and the droplets is analyzed. The experiment is conducted using PET film and DI water. In order to change the speed of the droplets, the droplets are dropped from various heights, and the film is stretched using clips to give tension. It is confirmed that the maximum diameter of a liquid droplet increases as the height of the drop of the liquid increases when the length of the film is equal to 0.5 mm. When the height is the same, if the tension is large, the maximum diameter of the droplet is greater, but the droplet can be seen to shrink rapidly over time.