| Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise


Download the FREE Equipment and Rental Resource Guide

Paint and Coatings Industry News

Main News Page

Magnetic Coating Shows Sticking Power

Monday, May 14, 2012

More items for Coating Materials

Comment | More

Reports of the death of paper may be premature, as Italian researchers have developed a coating solution that can render cellulose fibers waterproof, antibacterial and even magnetic.

The reactive acrylic coating, from Istituto Italiano di Tecnologia in Genoa, combines fiber molecules with a nanoparticle solution, creating a polymer matrix that can be used on fabric, paper or membranes.

 Paper coated with nanoparticles becomes waterproof, antimicrobial and magnetic.


Paper coated with nanoparticles becomes waterproof, antimicrobial and magnetic.

The technology uses a “simple and cost-effective method” to impregnate individual fibers with a solution containing superparamagnetic manganese ferrite colloidal nanoparticles, researchers report in “Superparamagnetic cellulose fiber networks via nanocomposite functionalization,”  in the Journal of Materials Chemistry.

Nanocomposite Shell

When the fibers are wetted, a thin nanocomposite shell forms around each one, making each water repellent and magnetically responsive without changing the properties of the overall surface.

So, for example, one could still print on the paper, fold it or use it in other normal ways. The solution can be made more or less magnetic or given other properties by tweaking other components—for example, incorporating silver nanoparticles to make it antimicrobial.

Researchers foresee a wide range of applications, from food packaging and medical documents to secure bank notes, Roberto Cingolani, scientific director at the IIT, told Waterproof paper could also be used to protect valuable documents, he said.

Other possibilities include magnetic wallpaper or antibacterial papers and wraps.


Tagged categories: Acrylic; Antibacterial coatings; Nanotechnology; Polymers; Research; Smart coatings

Comment Join the Conversation:

Sign in to our community to add your comments.

International Paint LLC

International Paint Engineered Coatings

Learn about our solutions for:
  • Structural Steel
  • Piping & Equipment
  • Storage Tanks
  • Pressure Vessels
  • Secondary Containment

    New resins from BASF will have metals loving water:

    Excellent corrosion resistance, low VOC, high gloss, thin films

    Carboline Company
    Hydrocarbon Fire & Jet Fire Protection

    Pyroclad X1 is the latest breakthrough in epoxy based intumescent fireproofing technology

    Jessup Manufacturing Company
    More Traction for Extreme Marine Conditions

    Jessup Safety Track® 3800 Military Grade peel-and-stick non-skid tapes and treads provide extra slip resistance for decks. MIL-PRF-24467C Type XI, Black & Gray.

    Wasser High-Tech Coatings Inc.
    Wasser Coatings Protect

    Wasser Coatings offer a complete range of Moisture Cure Urethane (NEPCOAT approved) systems in addition to Polyurea membranes and linings(NSF).

    Mitsubishi Gas Chemical America
    Performance Amine 1,3-BAC

    A highly reactive cycloaliphatic diamine offering superior performance. Reasonable cost and curing efficacy makes it suitable for all types of epoxy resin applications.

    Sherwin-Williams Protective & Marine Coatings

    With 4,000 distribution points and 3,700+ years of experience, Sherwin-Williams delivers the products, support and expertise you need, right where you need it.

    Polyval Coatings
    Polyflex® Polyurea Linings

    Polyflex™ new Polyurea Geotextile Membrane System has been specifically engineered to protect the environment in containment applications.

    Midsun Specialty Products
    Stopaq 30+ Year Coatings

    Use Stopaq corrosion prevention coatings on pipelines, field joints, tank chimes, structural steel and more. Learn more at

    Advanced Recycling Systems

    Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!

    Technology Publishing

    The Technology Publishing Network

    The Journal of Protective Coatings & Linings (JPCL) PaintSquare
    Durability + Design Paint BidTracker

    EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
    REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
    MORE:      About   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us

    © Copyright 2000-2015, Technology Publishing / PaintSquare, All rights reserved
    2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail