한국의류학회지 (Journal of the Korean Society of Clothing and Textiles)

  • 제46권6호
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  • Pages.1074-1087
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  • 2022
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  • 1225-1151(pISSN)
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  • 2234-0793(eISSN)
한국의류학회 (The Korean Society of Clothing and Textiles)
권호 표지
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Characterization of 3D Printed Wrist Brace with Various Tilting Angles of Re-entrant Pattern Using Thermoplastic Elastomer

  • Ye-Eun Park (Dept. of Fashion Design, Dong-A University) ;
  • Hyejin Lee (Dept. of Fashion Design, Dong-A University) ;
  • Imjoo Jung (Dept. of Fashion and Textiles, Dong-A University) ;
  • Sunhee Lee (Dept. of Fashion Design, Dong-A University)
  • 투고 : 2022.07.22
  • 심사 : 2022.09.13
  • 발행 : 2022.12.31
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초록

This study reports an optimization of a 3D printed wrist brace (WB) for various tilting angles (0°, 45°, 90°) of the re-entrant (RE) pattern and thickness (2 mm, 4 mm) using thermoplastic polyurethane (TPU) filaments and thermoplastic elastomer (TPE) filaments. The actual printing time, weight, Poisson's ratio, and tensile property of the manufactured samples were analyzed. The results confirmed that the actual printing time and weight increased with increasing thickness, regardless of the filament type. All tilting angles of the WB showed a negative Poisson's ratio (NPR), the largest of which appeared at 90°. The results of the tensile property analysis showed that a 90° tilting angle also had the largest value of elongation and stress. From these results, we conclude that the most suitable wrist brace is one in which the actual printing time is low, the weight is minimized to a thickness of 2 mm, and the tilting angle of the RE pattern is 90° for good shock absorption. The choice of filaments may be decided upon according to the user's preference, since the TPU is stiff and the TPE is elastic.

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과제정보

This research was supported by a grant (No. NFR-2021R1A4A1022059) of the Basic Science Research Program through the National Research (NRF) funded by the Ministry of Science and ICT, Republic of Korea.

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