• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Sunday, October 26, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News

New coating surface for superior rust resistance with ‘colorless’ color

Bioengineer by Bioengineer
May 2, 2017
in Science News
Reading Time: 2 mins read
0
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram
IMAGE

Credit: NITECH

Polymer chemists at Nagoya Institute of Technology in Japan invented a novel and simple coating process to color metals, leading to higher performance and saving the energy. The method involves a chemical modification to non-ionic polymers and nanotechnology.

Electrophoretic deposition is a standard industrial method for coating material and is especially used for rust prevention. Current methods, however, require a complex and expensive process that requires three coating steps, adding cost and time. Professor Akinori Takasu and his team report novel non-ionic polymers that can be used with electrophoretic deposition, simplifying the coating to just one step and significantly reducing energy demands.

The key to the discovery was the addition of a specific chemical group to the non-ionic polymer molecule.

"It was accidentally found in a project designing a new material for dental implant. When a non-ionic polymer had a sulfonyl group, it moved towards the anode in electrophoresis" explains Takasu.

Previously, the research team showed that the resulting coating becomes incredibly thick when the electrophoretic disposition is applied at low voltages. Combining a set of findings made it possible to skip multiple coating processes on a metal for rust resistance. However, for commercial purposes, it is important that the coat come in any desired color. Takasu and his colleagues therefore looked at how the color properties of non-ionic polymers behaved in water after applied as coating.

He says, "Our breakthrough was to include this non-ionic polymer into nano-particles. The new particles show structural color like opal stones, a.k.a. colorless color. The wavenumber of the particle should be controllable by changing the size of the particles used to coat the surface," which determines the color emitted.

While Takasu could easily react the non-ionic polymers with the sulfonyl group, he found controlling for the size of the particles proved difficult. In this research, he and his team developed the size control technology and prepared the particles by soap-free emulsion copolymerization, which consistently gave nanoparticles 300 nm in size as an example. They then oxidized the particles in water to generate the sulfonyl group. Finally, electrophoretic deposition was applied to coat steel. Electron microscopic images confirmed that the particles uniformly covered the steel in a honeycomb pattern.

"I expect our study will lead to a new type of electrophoretic painting that can be applied to any coating technologies like cars and fibers," Takasu said. This technique overcomes problems such as color fading and damage from UV radiation because of structural coloring, thus will be provided for wider application of electrophoretic dispersion.

The article "Electrophoretic non-ionic nano-spheres (latexes) for structural coloring" was published in Polymer at DOI: 10.1016/j.polymer.2017.04.019

###

Media Contact

Kuniaki Shiraki
[email protected]
81-527-357-424
@nitechofficial

http://www.nitech.ac.jp/eng/index.html

############

Story Source: Materials provided by Scienmag

Share12Tweet8Share2ShareShareShare2

Related Posts

FBXL5 Targeting: A Solution for Oxaliplatin Resistance

FBXL5 Targeting: A Solution for Oxaliplatin Resistance

October 26, 2025

Stigma, Support, and Stress in ADHD Parenting

October 26, 2025

Nurses’ Crucial Role in Suicide Prevention: A Review

October 26, 2025

Exploring Archaeal Promoters with Explainable CNN Models

October 26, 2025
Please login to join discussion

POPULAR NEWS

  • Sperm MicroRNAs: Crucial Mediators of Paternal Exercise Capacity Transmission

    1282 shares
    Share 512 Tweet 320
  • Stinkbug Leg Organ Hosts Symbiotic Fungi That Protect Eggs from Parasitic Wasps

    310 shares
    Share 124 Tweet 78
  • ESMO 2025: mRNA COVID Vaccines Enhance Efficacy of Cancer Immunotherapy

    194 shares
    Share 78 Tweet 49
  • New Study Suggests ALS and MS May Stem from Common Environmental Factor

    133 shares
    Share 53 Tweet 33

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

FBXL5 Targeting: A Solution for Oxaliplatin Resistance

Stigma, Support, and Stress in ADHD Parenting

Nurses’ Crucial Role in Suicide Prevention: A Review

Subscribe to Blog via Email

Success! An email was just sent to confirm your subscription. Please find the email now and click 'Confirm' to start subscribing.

Join 67 other subscribers
  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.