UV-Curable Cellulose Nanofiber-Reinforced Soy Protein Resins for 3D Printing and Conventional Molding

2020 ◽  
Vol 2 (11) ◽  
pp. 4666-4676 ◽  
Author(s):  
Qian Ma ◽  
Damian Mohawk ◽  
Babak Jahani ◽  
Xinnan Wang ◽  
Yanlin Chen ◽  
...  
Keyword(s):  
3D Printing ◽  
Soy Protein ◽  
Cellulose Nanofiber ◽  
Uv Curable

scholarly journals 3D Printing of Customized Aspheric Lenses for Imaging

Polymers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 3477
Author(s):  
Dexing Zhu ◽  
Jian Zhang ◽  
Qiao Xu ◽  
Yaguo Li
Keyword(s):  
Surface Roughness ◽  
Optical Properties ◽  
3D Printing ◽  
Surface Profile ◽  
3D Printer ◽  
Uv Curable ◽  
Profile Deviation ◽  
Sharp Image ◽  
Aspheric Lenses ◽  
Lens Surface

A simple and efficient process for fabricating customized aspheric lenses is reported, in which a stereolithographic 3D printer combined with the meniscus equilibrium post-curing technique is employed. Two kinds of UV-curable resins, DentaClear and HEMA, were used for printing aspheric lenses in our experiments. The printed DentaClear lens featured low surface profile deviation of ~74 μm and showed satisfactory optical imaging resolution of 50.80 lp/mm, i.e., 4.92 μm. The surface roughness of the printed lens with DentaClear was measured to be around 2 nm with AFM. The surface roughness was improved as a result of post-curing, which reduced the ripples on printed lens surfaces. In contrast, the printed HEMA lens exhibited a significant stair-stepping effect with a large surface profile deviation of ~150 μm. The ripples were somewhat apparent even if the printed HEMA lens surface was smoothed by means of post-curing. No sharp image can be obtained with the HEMA lens in the resolution testing. The composition of HEMA resin may be the reason for the relatively poor surface quality and optical properties.

scholarly journals Optimization of Printing Parameters for Digital Light Processing 3D Printing of Hollow Microneedle Arrays

Pharmaceutics ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1837
Author(s):  
Essyrose Mathew ◽  
Giulia Pitzanti ◽  
Ana L. Gomes dos Santos ◽  
Dimitrios A. Lamprou
Keyword(s):  
Drug Delivery ◽  
3D Printing ◽  
Mechanical Strength ◽  
Print Quality ◽  
Digital Light Processing ◽  
Uv Curable ◽  
Microneedle Arrays ◽  
Uv Curable Resin ◽  
Viable Method ◽  
Printing Parameters

3D printing is an emerging technology aiming towards personalized drug delivery, among many other applications. Microneedles (MN) are a viable method for transdermal drug delivery that is becoming more popular for delivery through the skin. However, there is a need for a faster fabrication process with potential for easily exploring different geometries of MNs. In the current study, a digital light processing (DLP) method of 3D printing for fabrication of hollow MN arrays using commercial UV curable resin was proposed. Print quality was optimised by assessing the effect of print angle on needle geometries. Mechanical testing of MN arrays was conducted using a texture analyser. Angled prints were found to produce prints with geometries closer to the CAD designs. Curing times were found to affect the mechanical strength of MNs, with arrays not breaking when subjected to 300 N of force but were bent. Overall, DLP process produced hollow MNs with good mechanical strength and depicts a viable, quick, and efficient method for the fabrication of hollow MN arrays.

scholarly journals Structural Dynamics in UV Curable Resins Resolved by In Situ 3D Printing X-ray Photon Correlation Spectroscopy

2020 ◽  
Vol 2 (9) ◽  
pp. 4096-4108 ◽  
Author(s):  
Benjamin M. Yavitt ◽  
Lutz Wiegart ◽  
Daniel Salatto ◽  
Zhixing Huang ◽  
Maya K. Endoh ◽  
...  
Keyword(s):  
3D Printing ◽  
Structural Dynamics ◽  
Photon Correlation Spectroscopy ◽  
Correlation Spectroscopy ◽  
Photon Correlation ◽  
Uv Curable ◽  
X Ray

3D printing of porous structures by UV-curable O/W emulsion for fabrication of conductive objects

2015 ◽  
Vol 3 (9) ◽  
pp. 2040-2044 ◽  
Author(s):  
I. Cooperstein ◽  
M. Layani ◽  
S. Magdassi
Keyword(s):  
3D Printing ◽  
Porous Structure ◽  
Pore Size ◽  
Nano Particle ◽  
Porous Structures ◽  
Uv Curable ◽  
New Approach

We present a new approach for fabrication of a porous structure with controllable pore size for later embedment with nano particle. We showed how this method can be applied for fabrication of a 3D conductive circuit.

Development of a novel reinforced film based on Gellan gum/Cellulose nanofiber/Soy protein for skin tissue engineering application

2021 ◽  
Author(s):  
Zahra Mohebian ◽  
Leila Yavari Maroufi ◽  
Marjan Ghorbani
Keyword(s):  
Tissue Engineering ◽  
Soy Protein ◽  
Nanocomposite Film ◽  
Composite Films ◽  
Engineering Application ◽  
Gellan Gum ◽  
Cellulose Nanofiber ◽  
Tissue Engineering Application ◽  
Skin Tissue Engineering ◽  
Potential Applications

Recently, the importance of biocompatible nanocomposite film with suitable properties has been further attracted for potential applications in the biomedical area. In this study, composite films of Gellan gum/Soy Protein/Cellulose...

scholarly journals 3D Printing of Oil Paintings Based on Material Jetting and Its Reduction of Staircase Effect

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2536 ◽  
Author(s):  
Jiangping Yuan ◽  
Chen Chen ◽  
Danyang Yao ◽  
Guangxue Chen
Keyword(s):  
3D Printing ◽  
Visual Assessment ◽  
Color Difference ◽  
Oil Painting ◽  
Uv Curable ◽  
Oil Paintings ◽  
Layer Sequence ◽  
3D Objects ◽  
Staircase Effect ◽  
Printing Processes

Material jetting is a high-precision and fast 3D printing technique for color 3D objects reproduction, but it also suffers from color accuracy and jagged issues. The UV inks jetting processes based on the polymer jetting principle have been studied from printing materials regarding the parameters in the default layer order, which is prone to staircase effects. In this work, utilizing the Mimaki UV inks jetting system with a variable layer thickness, a new framework to print a photogrammetry-based oil painting 3D model has been proposed with the tunable coloring layer sequence to improve the jagged challenge between adjacent layers. Based on contour tracking, a height-rendering image of the oil painting model is generated, which is further segmented and pasted to the corresponding slicing layers to control the overall printing sequence of coloring layers and white layers. The final results show that photogrammetric models of oil paintings can be printed vividly by UV-curable color polymers, and that the proposed reverse-sequence printing method can significantly improve the staircase effect based on visual assessment and color difference. Finally, the case of polymer-based oil painting 3D printing provides new insights for optimizing color 3D printing processes based on other substrates and print accuracy to improve the corresponding staircase effect.

Highly Stretchable and UV Curable Elastomers for Digital Light Processing Based 3D Printing

2017 ◽  
Vol 29 (15) ◽  
pp. 1606000 ◽  
Author(s):  
Dinesh K. Patel ◽  
Amir Hosein Sakhaei ◽  
Michael Layani ◽  
Biao Zhang ◽  
Qi Ge ◽  
...  
Keyword(s):  
3D Printing ◽  
Digital Light Processing ◽  
Uv Curable ◽  
Highly Stretchable

scholarly journals UV-curable silicone materials with tuneable mechanical properties for 3D printing

2021 ◽  
Vol 205 ◽  
pp. 109681
Author(s):  
Aleksandra Foerster ◽  
Vinotharan Annarasa ◽  
Anna Terry ◽  
Ricky Wildman ◽  
Richard Hague ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
3D Printing ◽  
Uv Curable

3D printing of continuous carbon fiber reinforced thermoset composites using UV curable resin

2021 ◽  
Author(s):  
Md Atikur Rahman ◽  
Md Zahirul Islam ◽  
Luke Gibbon ◽  
Chad A. Ulven ◽  
John J. La Scala
Keyword(s):  
Carbon Fiber ◽  
3D Printing ◽  
Fiber Reinforced ◽  
Uv Curable ◽  
Thermoset Composites ◽  
Continuous Carbon Fiber ◽  
Carbon Fiber Reinforced ◽  
Uv Curable Resin
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