3D printing of cellulose by solvent on binder jetting

Soutrenon, Mathieu (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Billato, Gabriel (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Bircher, Fritz (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Geiger, Thomas (Empa, Dübendorf, Switzerland)

This project aims to 3D print wood by products. The printed parts are only made of cellulosic derivatives. The proposed process is powder based. Parts are made of semi-crystalline cellulose mixed with ethylcellulose (50/50). Similarly to binder jetting, successive layers of this mixture are spread out. Using an industrial inkjet print head from Fujifilm-Dimatix, isopropanol is selectively deposited on each of the powder layers. Isopropanol dissolve the ethyl cellulose, binding the cellulose particles together. The produced parts are brittle and require a post-treatment. A dedicated printer was built for this project. Ongoing research is done on optimizing of the layer formation and drying to increase mechanical properties.


Conference Type:
full paper
Faculty:
Ingénierie et Architecture
School:
HEIA-FR
Institute:
IPRINT - Institut de printing
Subject(s):
Ingénierie
Publisher:
Dresden, Germany, 23-27 September 2018
Date:
2018-09
Dresden, Germany
23-27 September 2018
Pagination:
4 p.
Published in:
Proceedings of NIP & Digital Fabrication Conference, Printing for Fabrication, materials, applications, and process, 23-27 September 2018, Dresden, Germany
ISSN:
2169-4451
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2019-02-12, last modified 2019-03-05

Fulltext:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)