A novel additive manufacturing method of cellulose gel

Type of content
Journal Article
Thesis discipline
Degree name
Publisher
MDPI AG
Journal Title
Journal ISSN
Volume Title
Language
eng
Date
2021
Authors
Zadeh HN
Bowles D
Huber, Tim
Clucas, Don
Abstract

Screen-additive manufacturing (SAM) is a potential method for producing small intricate parts without waste generation, offering minimal production cost. A wide range of materials, including gels, can be shaped using this method. A gel material is composed of a three-dimensional cross-linked polymer or colloidal network immersed in a fluid, known as hydrogel when its main constituent fluid is water. Hydrogels are capable of absorbing and retaining large amounts of water. Cellulose gel is among the materials that can form hydrogels and, as shown in this work, has the required properties to be directly SAM, including shear thinning and formation of post-shearing gel structure. In this study, we present the developed method of SAM for the fabrication of complex-shaped cellulose gel and examine whether successive printing layers can be completed without delamination. In addition, we evaluated cellulose SAM without the need for support material. Design of Experiments (DoE) was applied to optimize the SAM settings for printing the novel cellulose-based gel structure. The optimum print settings were then used to print a periodic structure with micro features and without the need for support material.

Description
Citation
Zadeh HN, Bowles D, Huber T, Clucas D (2021). A novel additive manufacturing method of cellulose gel. Materials. 14(22). 6988-.
Keywords
3D printing, additive manufacturing, cellulose, gel, hydrogel, screen additive manufacturing, screen printing, stencil additive manufacturing
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
40 - Engineering::4014 - Manufacturing engineering::401401 - Additive manufacturing
40 - Engineering::4003 - Biomedical engineering::400302 - Biomaterials
40 - Engineering::4012 - Fluid mechanics and thermal engineering::401202 - Bio-fluids
31 - Biological sciences::3106 - Industrial biotechnology::310602 - Bioprocessing, bioproduction and bioproducts
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All rights reserved unless otherwise stated