Oxygen concentration and conversion distributions in a layer-by-layer UV-cured film used as a simplified model of a 3D UV inkjet printing system

2017 ◽  
Vol 158 ◽  
pp. 569-579 ◽  
Author(s):  
Kentaro Taki ◽  
Yoshihito Watanabe ◽  
Tadao Tanabe ◽  
Hiroshi Ito ◽  
Masahiro Ohshima
Keyword(s):  
Oxygen Concentration ◽  
Inkjet Printing ◽  
Simplified Model ◽  
Layer By Layer ◽  
Printing System

System Design and Process Optimization for the Inkjet Printing of PEDOT:Poly(styrenesulfonate)

2014 ◽  
Vol 2 (1) ◽  
Author(s):  
P. Wilson ◽  
C. Lekakou ◽  
J. F. Watts
Keyword(s):  
Process Optimization ◽  
Inkjet Printing ◽  
Process Model ◽  
Conductive Polymer ◽  
Process Window ◽  
Rayleigh Instability ◽  
Voltage Waveform ◽  
Electrically Conductive ◽  
Satellite Drops ◽  
Printing System

A laboratory-scale inkjet printing system was designed for printing polymeric inks with the focus on PEDOT:PSS, a transparent, electrically conductive polymer. PEDOT:PSS inks with 0 and 1 wt. % Surfynol were tested rheologically in elongational and shear flows. A process model is presented and validated for the prediction of flow boundary after the ink exits the nozzle, including drop formation. Process optimization involved establishing a process window related to the voltage waveform, substrate temperature, speed and printed line-overlap, aiming at avoiding satellite drops, “coffee cup” rings, the Rayleigh instability, “stacked printed lines,” and discontinuities in the printed lines or films.

Layer-by-layer inkjet printing GO film anchored Ni(OH)2 nanoflakes for high-performance supercapacitors

2019 ◽  
Vol 375 ◽  
pp. 121988 ◽  
Author(s):  
Xueying Li ◽  
Rongrong Chen ◽  
Yunhe Zhao ◽  
Qi Liu ◽  
Jingyuan Liu ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
High Performance ◽  
Layer By Layer

Theoretical analysis of reflection high-energy electron diffraction (RHEED) and reflection high-energy positron diffraction (RHEPD) intensity oscillations expected for the perfect layer-by-layer growth

2015 ◽  
Vol 71 (5) ◽  
pp. 513-518 ◽  
Author(s):  
Zbigniew Mitura
Keyword(s):  
Theoretical Models ◽  
High Energy ◽  
Layer Growth ◽  
Simplified Model ◽  
Layer By Layer ◽  
High Energy Electron ◽  
Realistic Potential ◽  
Simplified Approach ◽  
Electrons And Positrons ◽  
Analytical Formulas

Predictions from two theoretical models, allowing one to determine the phase of intensity oscillations, are compared for reflected beams of electrons and positrons. Namely, results of the precise dynamical calculations are compared with results obtained using a simplified approach. Within the simplified model, changes in the specularly reflected beam intensity, expected to occur during the deposition of new atoms, are described with the help of interfering waves and the effect of refraction, and respective approximate analytical formulas are employed to determine the phase of the oscillations. It is found that the simplified model is very useful for understanding the physics ruling the appearance of intensity oscillations. However, it seems that the model with the realistic potential is more suitable for carrying out interpretations of experimental data.

Study on the Uniform Distributed Mechanics of Ink Droplet in Inkjet Printing Equipment

2011 ◽  
Vol 236-238 ◽  
pp. 1505-1507
Author(s):  
Qi Feng Chen ◽  
Shi Lin Yuan ◽  
Guang Xue Chen ◽  
Bao Lin Tang ◽  
Jing Lei Tai
Keyword(s):  
Theoretical Calculation ◽  
Inkjet Printing ◽  
Testing Equipment ◽  
Cross Direction ◽  
Uniform Velocity ◽  
New Type ◽  
Printing System ◽  
The Cross

This paper studied on the hydrokinetics and uniform distributed mechanics of supplying ink pressure for the inkjet printing system based on the, and the advanced testing equipment. According to the analysis of theoretical calculation and CFD, we designed a new type of equipment for supplying ink, including the structure of the transition pipe. This supplying ink equipment could make the ink droplets distribute under the equal pressure on the cross direction. The experiments showed that this new supplying ink equipment could make the ink droplets distribute under the equal pressure and uniform velocity on the cross direction, so it greatly improved the imaging effects for the inkjet printing system.

Survey and Analyze the Line Output Characteristics in Inkjet Printing

2012 ◽  
Vol 217-219 ◽  
pp. 2603-2606
Author(s):  
Xiao Meng Cui ◽  
Guang Xue Chen ◽  
Huan Mei Wang
Keyword(s):  
Line Width ◽  
Inkjet Printing ◽  
Output Characteristic ◽  
Quality Detection ◽  
Study Results ◽  
Printing System ◽  
Output Characteristics ◽  
Standard Output ◽  
Positive Line

Inkjet characters and graphics quality are impacted by rough and wavy exterior appearing along the line edge caused by feather and penetration phenomena. In order to deliberate whether only positive line attributes measurement was adequate to detect the output characteristic of an inkjet printing system, negative line quality survey was involved in. The attributes such as line width, contrast and blurriness etc. of negative lines in vertical and horizon direction together with positive lines were measured and analyzed though comparison according to ISO 13660 standard. Output characteristics of all kinds of lines were further summarized and detected in terms of attribute correlations of positive lines presented in existing study. Results show that when negative and positive lines are considered altogether the correlations among lines in different direction turn complex, which are distinguished with the simple correlativity in positive line quality detection.

Inkjet Printing of Layer-by-Layer Assembled Poly(lactide) Stereocomplex with Encapsulated Proteins

Langmuir ◽  
2014 ◽  
Vol 30 (6) ◽  
pp. 1669-1676 ◽  
Author(s):  
Takami Akagi ◽  
Tomoko Fujiwara ◽  
Mitsuru Akashi
Keyword(s):  
Inkjet Printing ◽  
Layer By Layer ◽  
Encapsulated Proteins

Biodegradable Nano-Material Composites for Use in an Inkjet Printing System

2006 ◽  
Vol 921 ◽  
Author(s):  
Nicole H Levi ◽  
John B. McGuirt ◽  
Faith M. Coldren ◽  
David L. Carroll
Keyword(s):  
Inkjet Printing ◽  
Collagen Type ◽  
Three Dimensional ◽  
Collagen Type I ◽  
Type I ◽  
Printing System ◽  
Walled Carbon Nanotubes ◽  
Thermal Inkjet Printing ◽  
Compatibility Of Materials ◽  
Insight Into

AbstractBiomaterials for development of resorbable, three-dimensional tissue scaffolds have been used in a modified thermal inkjet printing system to explore compatibility of materials, solvents and the printing system. The polymers included collagen (type I), sodium alginate, fibronectin, poly-lactic co-glycolic acid (PLGA), polyethylene glycol (PEG), and tetraglycol were tested. Single-walled carbon nanotubes were combined with the biopolymers to determine which systems in which they would blend well, and be able to print. Uncovering which biopolymers may be printed together offers insight into development of materials which most closely match the properties of biological tissue.

Layer-by-layer inkjet printing of fabricating reduced graphene-polyoxometalate composite film for chemical sensors

2012 ◽  
Vol 14 (37) ◽  
pp. 12757 ◽  
Author(s):  
Hui Zhang ◽  
Anjian Xie ◽  
Yuhua Shen ◽  
Lingguang Qiu ◽  
Xingyou Tian
Keyword(s):  
Composite Film ◽  
Chemical Sensors ◽  
Inkjet Printing ◽  
Layer By Layer ◽  
Reduced Graphene

Protocol Design of Inkjet Printing System Based on Petri Nets

2011 ◽  
Vol 268-270 ◽  
pp. 1968-1973
Author(s):  
Ye Li Li ◽  
Biao Guo ◽  
Li Kun Lu
Keyword(s):  
Petri Nets ◽  
Petri Net ◽  
Inkjet Printing ◽  
Communication Protocol ◽  
Protocol Design ◽  
Colored Petri Net ◽  
Cpn Tools ◽  
Printing System ◽  
Data Bus

This paper defined a kind of communication protocol between the RIP card and the printhead circuit for the inkjet printing system. Protocol project was chosen in the protocol design, for which Petri net was used. After defining the message, the protocol model was established based on colored Petri net with inhibitor arcs. The model has priority and allow different message to transmit on the same data bus subsequently. Though analyzing and simulating in CPN Tools, the model was proved to be able to realize the function.

scholarly journals Analysis of possibilities of high-speed prototyping technology in hot section manufacturing

2018 ◽  
Vol 224 ◽  
pp. 01068
Author(s):  
Andrey V. Balaykin ◽  
Roman A. Vdovin ◽  
Elena M. Dobryshkina
Keyword(s):  
Technological Process ◽  
High Speed ◽  
Layer By Layer ◽  
Master Mold ◽  
Turbine Engine ◽  
Technical Requirements ◽  
Printing System ◽  
Nozzle Block ◽  
Surface Layer Quality ◽  
Photopolymeric Material

The article is devoted to the exercising of a trial technological process for the manufacture of gas turbine engine (GTE) hot sections by the example of a solid-cast nozzle block. To do this, the authors made up a plan of the experiment associated with the search for optimal conditions and parameters of a technological process of the sector master mold layer-by-layer synthesis from a photopolymeric material. The paper tracks the interconnection between the parameters of a 3D printing system Objet Eden 350 and the materials in the growing process by the PolyJet technology and mechanical properties of a master mold in the context of their influence on the surface layer quality and geometric accuracy of the final GTE parts’ casting. Based upon the analysis of the obtained research results and taking into account technical requirements, the authors managed to grow a nozzle block sector master mold, get wax models and conduct an experimental casting of a solid cast nozzle block wheel.

Sign in / Sign up

Export Citation Format

Share Document