cellulose gel
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Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6988
Author(s):  
Hossein Najaf Zadeh ◽  
Daniel Bowles ◽  
Tim Huber ◽  
Don Clucas

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.


2021 ◽  
Vol 169 ◽  
pp. 113641
Author(s):  
Tian Tan ◽  
Jiali Zhou ◽  
Xin Gao ◽  
Xiaoning Tang ◽  
Heng Zhang

2021 ◽  
Vol 42 ◽  
pp. 103058
Author(s):  
Yan Bai ◽  
Weiwei Zhao ◽  
Shuaihang Bi ◽  
Shujuan Liu ◽  
Wei Huang ◽  
...  

2021 ◽  
Vol 63 (3) ◽  
pp. 232-238
Author(s):  
D. A. Kadimaliev ◽  
A. A. Devyataeva ◽  
I. P. Grunyushkin ◽  
A. N. Malafeev ◽  
V. V. Revin

2021 ◽  
Vol 255 ◽  
pp. 117468
Author(s):  
Oruç Köklükaya ◽  
Rose-Marie Pernilla Karlsson ◽  
Federico Carosio ◽  
Lars Wågberg

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