Today: July 21, 2017, 6:56 am
  
Computer & Technology

Printed 'coffee rings' avoided with nanofibers

Printed 'coffee rings' avoided with nanofibers
PR-Inside.com: 2017-05-19 17:22:36
Cellulose nanofibers can help particles in ink and printed electronics disperse evenly, rather than spread apart like dried coffee rings.

Tsukuba, Japan, May 10, 2017 - (ACN Newswire) - Drying is an important part of printing words and electronics. Particles suspended in liquid are applied to a surface and the liquid evaporates leaving the particles behind. Many times, the particles dry unevenly because of the so-called 'coffee ring effect'. Much like when spilled coffee dries up and leaves behind a hollow ring, particles tend to move to the outside of the liquid droplet. This is a problem, particularly for printed electronics, which require uniform application of a liquid for maximum performance.


Cellulose nanofibers offer an environmentally friendly and effective solution to this problem, explain researchers from Japan in a paper recently published in Science and Technology of Advanced Materials.

The researchers tested three different concentrations of cellulose nanofibers added to a solution with suspended particles. They also tried increasing the particle concentration in a solution with no added nanofibers. They photographed the drying process under a microscope over time.

The solutions with nanofibers dried much more evenly than those without. Instead of a hollow ring, the particles condensed into a solid dot, slightly shrinking in size as the liquid evaporated. Particles in the mixtures with nanofibers also moved at a consistent pace. There was no final rush to the periphery as was observed in the solutions without nanofibers.

The researchers conclude that cellulose nanofibers can improve the drying process and avoid problems stemming from uneven drying, such as degradation of paint coatings, clarity of printed characters on paper, and conductivity of printed electronics.

Once the solution dries, the nanofibers are left behind along with the desired particles. How the nanofibers impede or benefit material performance is a topic for further research.

"The addition of cellulose nanofibers may alter the electrical resistivity of conductive wires in the printed electronics, but the fine tuning of the concentration might be exploited for the control of electric resistivity itself," write the research team from Tokyo University of Agriculture and Technology, and Nagoya University.

Article information:

Yuto Ooi, Itsuo Hanasaki, Daiki Mizumura and Yu Matsuda

"Suppressing coffee-ring effect of colloidal droplet by dispersed cellulose nanofibers"

Science and Technology of Advanced Materials, 2017, 18:1, 316-324.

dx.doi.org/10.1080/14686996.2017.1314776

For further information please contact:

Itsuo Hanasaki,

Institute of Engineering,

Tokyo University of Agriculture and Technology,

Naka-cho 2-24-16, Koganei-shi, Tokyo 184-8588 Japan

hanasaki@cc.tuat.ac.jp

Journal information

Science and Technology of Advanced Materials (STAM), www.tandfonline.com/stam is an international open access journal in materials science. The journal covers a broad spectrum of topics, including synthesis, processing, theoretical analysis and experimental characterization of materials. Emphasis is placed on the interdisciplinary nature of materials science and on issues at the forefront of the field, such as energy and environmental issues, as well as medical and bioengineering applications.

For more information about STAM please contact

Mikiko Tanifuji

Publishing Director

Science and Technology of Advanced Materials

E-mail: TANIFUJI.Mikiko@nims.go.jp

Press release distributed by ResearchSEA for Science and Technology of Advanced Materials.

Topic: Research and development

Sectors: Electronics, Nanotechnology

www.acnnewswire.com

From the Asia Corporate News Network

Copyright © 2017 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.

Press Information


Published by
ACN Newswire
+65 6304 8926
e-mail
www.acnnewswire.com



# 549 Words
Related Articles
More From The Author
Indonesian National Agency of Search and Relief [..]
JAKARTA, May 18, 2017 - (ACN Newswire) - The Indonesian National Agency of Search and Relief (NASR, formerly BASARNAS) supports [..]
Sberbank of Russia to Start Accepting JCB [..]
Moscow, Russia and Tokyo, Japan, May 19, 2017 - (ACN Newswire) - JCB International Co., Ltd. (JCBI), the international operations [..]
Hong Kong International Medical Devices and Supplies [..]
HONG KONG, May 18, 2017 - (ACN Newswire) - The eighth HKTDC Hong Kong International Medical Devices and Supplies Fair [..]
Hari Raya Light Up 2017 Returns with [..]
Ever-popular Geylang Serai Bazaar to return with over 1,000 stalls SINGAPORE, May 16, 2017 - (ACN Newswire) - The annual [..]
VGI Global Media (SET:VGI) Posts Solid 2016/17 [..]
BANGKOK, May 18, 2017 - (ACN Newswire) - VGI Global Media PCL (SET:VGI), operator of a data centric media hypermarket, [..]
 
More From Computer & Technology
ManageEngine Adds Enhanced Troubleshooting Features to [..]
ManageEngine, the real-time IT management company, today announced the addition of enhanced tools to its endpoint management solution, [..]
New Mimecast Sync & Recover for Exchange [..]
Dubai, UAE – July 19, 2017 – Mimecast Limited (NASDAQ: MIME), a leading email and data security company, today introduced [..]
Sophos Placed in the Leaders Quadrant of [..]
Sophos (LSE:SOPH), a global leader in network and endpoint security today announced that it has once again been positioned in [..]
AXILSPOT Launches High-performance Rugged Outdoor Access [..]
Dubai, United Arab Emirates, July 10, 2017: AXILSPOT, a global vendor in enterprise wireless networking, unveiled its latest rugged, [..]
Digital Shadows Announces the Industry’s Broadest Digital [..]
Dubai, UAE, July 9, 2017 – Digital Shadows, the industry leader in digital risk management, today announced comprehensive enhancements [..]

Disclaimer: If you have any questions regarding information in this press release please contact the company added in the press release. Please do not contact pr-inside. We will not be able to assist you. PR-inside disclaims the content included in this release.