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Enhanced continuous liquid interface production with track-etched membrane

Wenxiong Lin (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Huagang Liu (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Haizhou Huang (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China and University of the Chinese Academy of Sciences, Beijing, China)
Jianhong Huang (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Kaiming Ruan (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Zixiong Lin (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Hongchun Wu (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Zhi Zhang (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Jinming Chen (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Jinhui Li (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Yan Ge (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Jie Zhong (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Lixin Wu (Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China)
Jie Liu (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China)

Rapid Prototyping Journal

ISSN: 1355-2546

Article publication date: 16 October 2018

Issue publication date: 21 January 2019

Abstract

Purpose

The purpose of this paper is to explore the possibility of an enhanced continuous liquid interface production (CLIP) with a porous track-etched membrane as the oxygen-permeable window, which is prepared by irradiating polyethylene terephthalate membranes with accelerated heavy ions.

Design/methodology/approach

Experimental approaches are carried out to characterize printing parameters of resins with different photo-initiator concentrations by a photo-polymerization matrix, to experimentally observe and theoretically fit the oxygen inhibition layer thickness during printing under conditions of pure oxygen and air, respectively, and to demonstrate the enhanced CLIP processes by using pure oxygen and air, respectively.

Findings

Owing to the high permeability of track-etched membrane, CLIP process is demonstrated with printing speed up to 800 mm/h in the condition of pure oxygen, which matches well with the theoretically predicted maximum printing speed at difference light expose. Making a trade-off between printing speed and surface quality, maximum printing speed of 470 mm/h is also obtained even using air. As the oxygen inhibition layer created by air is thinner than that by pure oxygen, maximum speed cannot be simply increased by intensifying the light exposure as the case with pure oxygen.

Originality/value

CLIP process is capable of building objects continuously instead of the traditional layer-by-layer manner, which enables tens of times improvement in printing speed. This work presents an enhanced CLIP process by first using a porous track-etched membrane to serve as the oxygen permeable window, in which a record printing speed up to 800 mm/h using pure oxygen is demonstrated. Owing to the high permeability of track-etched membrane, continuous process at a speed of 470 mm/h is also achieved even using air instead of pure oxygen, which is of significance for a compact robust high-speed 3D printer.

Keywords

Acknowledgements

This work is supported from the National Key Research and Development Program of China (Grant No. 2016YFB1100901), the Industry guidance project of Fujian province (2018H0045), and the “Strategic Priority Research Program” of the Chinese Academy of Science (Grant No. XDA09020301).

Citation

Lin, W., Liu, H., Huang, H., Huang, J., Ruan, K., Lin, Z., Wu, H., Zhang, Z., Chen, J., Li, J., Ge, Y., Zhong, J., Wu, L. and Liu, J. (2019), "Enhanced continuous liquid interface production with track-etched membrane", Rapid Prototyping Journal, Vol. 25 No. 1, pp. 117-125. https://doi.org/10.1108/RPJ-12-2017-0251

Publisher

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Emerald Publishing Limited

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