[ Article ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 27, No. 2, pp.140-145

ISSN: 2508-5107 (Online)

Print publication date 15 Apr 2018

Received 20 Feb 2018 Revised 28 Mar 2018 Accepted 29 Mar 2018

DOI: https://doi.org/10.7735/ksmte.2018.27.2.140

SLA 3D 프린팅용 ZrO₂-CNF/photopolymer 복합수지의 탄소 섬유 함량에 따른 분산 안정성 및 기계적 특성 연구

송세연^a ; 박민수^b ; 윤지선^a^{, *}

Dispersion Stability and Mechanical Properties of ZrO₂-CNF/photopolymer Composite Resins by Carbon Nanofiber Contents for SLA 3D Printing

Se Yeon Song^a ; Min Soo Park^b ; Ji Sun Yun^a^{, *}

aElectronic Convergence Materials Division, Korea Institute of Ceramic Engineering and Technology, 101, Soho-ro, Jinju, Gyeongnam-do, 52851, Korea
bDepartment of Mechanical System and Design Engineering, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul 01811, Korea

Correspondence to: ^*Tel.: +82-55-792-2675, Fax: +82-55-792-2651, E-mail address: susubin@kicet.re.kr (Ji Sun Yun).

Abstract

For the development of high strength resin for SLA (stereolithography) 3D printing technology, VTES (vinyltriethoxysilane)-coated ZrO₂-CNF (carbon nanofiber) particles were prepared by hydrolysis and condensation reactions, and then highly dispersed in a commercial photopolymer (High-temp) by the IPN (interpenetrating network) phenomena. The surface morphology of VTES-coated ZrO₂-CNF particles according to CNF contents were observed by FE-SEM, and particle size distribution was measured using a particle size analyzer. The viscosity and dispersion stability of VTES-coated ZrO₂-CNF/High-temp composite resins were investigated by a rheometer and Turbiscan, respectively. The cross-sectional images of 3D-printed objects was observed by FE-SEM, and the mechanical properties of 3D-printed objects (ASTM-D638 Type V) were investigated through a tensile test and nanoindenter.

Keywords:

Carbon fiber, Photopolymer, SLA 3D printing, Silane coupling agent, Dispersion stability

Acknowledgments

본 연구는 산업 통상 자원부가 지원하는 산업 핵심 기술 개발사업 (10051680, 3D 프린팅용 친환경 고강도 고분자 소재 개발)에 의해 지원되었습니다.

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