Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Mechanical Properties of 3D Printing Spacer Fabric Structures Manufactured Using Fused Deposition Modeling 3D Printing Technology

FDM 3D 프린터로 제조된 3D 프린팅 스페이서 패브릭 구조체의 역학적 성능평가

  • Lee, Sunhee (Department of Fashion Design, Dong-A University) ;
  • Kim, Hyelim (Research Institute of Convergence Design, Dong-A University)
  • 이선희 (동아대학교 패션디자인학과) ;
  • 김혜림 (동아대학교 융합디자인연구소)
  • Received : 2020.03.21
  • Accepted : 2020.04.20
  • Published : 2020.04.30
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Abstract

The aim of this study is to develop shock-absorbing materials for the knee area of wetsuits using fused deposition modeling (FDM) 3D printing technology. Four types of samples were prepared with 3D printing spacer fabrics using thermoplastic polyurethane filaments. The samples were named 3DSPF-2.5, 3DSPF-5.0, 3DSPF-7.5, and 3DSPF-10.0, corresponding to sample thicknesses of 2.5, 5.0, 7.5, and 10.0 mm, respectively. Tests were performed on the samples following DIN recommended guidelines to determine the tensile, ball rebound, and abrasion properties. The results of the tensile test showed that the initial modulus and load increased with sample thickness owing to the increase in the leg area and density of the spacer layer. However, 3DSPF-7.5 had the highest elongation among the samples. In addition, the samples in the cross direction (CD) exhibited improved tensile properties compared to those in the machine direction. From the results of the ball rebound test, the resilience of the samples increased according to the following sequence: 3DSPF-2.5 < 3DSPF-5.0 < 3DSPF-7.5 < 3DSPF-10.0. In the case of abrasion resistance, mass loss followed the order of 3DSPF-10.0 < 3DSPF-7.5 < 3DSPF-5.0 < 3DSPF-2.5. Therefore, it was demonstrated that 3DSPF-10.0 in CD possessed excellent strength, resilience, and abrasion-resistance properties. However, considering the ease of movement after wearing the wetsuit, 3DSPF-7.5 in CD, which exhibited the highest elongation, was confirmed to be the most suitable material for producing 3D printed spacer fabric structures for shock absorption in the knee area.

Keywords

Acknowledgement

이 논문은 2017년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업임(No. NRF-2017R1D1A1A09000516).

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