Durability + Design

Building Performance and Aesthetics

A Product of Technology Publishing
JPCL/PaintSquare | D+D | Paint BidTracker

D+D 2014
Register Now for D+D 2014

Paint and Coatings Industry News

Main News Page


Nanocoating to Ward Off Flames

Wednesday, January 30, 2013

More items for Coatings Technology

Comment | More

Flame-retardant research is heating up in Texas, where researchers report the development of an environmentally friendly nanocoating that can be used on fabrics and foams.

The development, capping five years of research by materials scientists at Texas A&M University, could provide a long-sought alternative to flame retardants that use toxic chemicals.

flames
Wikimedia Commons

Building insulation coated with the new nanocoating could help ward off flames.

The nanocoating consists of two water-soluble polymers—one positively charged and one negatively charged. The coating does not make the substrate 100 percent fireproof, but it “dramatically diminishes the ability of the object to burn,” the university reported.

Fire-Retardant Development

Department of Mechanical Engineering Professor Jaime Grunlan led the research, which has been funded by several companies as well as the National Institute of Standards & Technology.

The team says the coatings are based on renewable, water-soluble and dispersible substances found naturally in the environment.

When coated and exposed to high temperatures, foams such as those found in sofas, mattresses, airplane seat cushions, theater and auditorium seats, and building insulation produce a protective carbon foam coating, according to the university.

The carbon foam coating allows the objects to ward off flames.

Clay and Lobster Shells

Texas A&M officials did not return a request for more information. However, an earlier report on the research noted that the team used coatings featuring a combination of chitosan and clay as an alternative to brominated compounds currently used in flame-retardant materials.

Texas A&M

Post-doctoral research assistant Galina Laufer applies the flame-resistant polymer-coated material to an open flame. The material produces a protective carbon foam coating when exposed to high temperatures.

“On polyurethane foam, a coating of chitosan (a natural material extracted from shrimp and lobster shells) and clay is deposited to eliminate melt dripping during burning,” according to the university’s report.

“The nanocomposite mixture coats the interior walls of foam. The result is that when burned, the treated foam keeps its shape instead of puddling at high temperatures like untreated polyurethane foam does. This quality eliminates the ‘melt-dripping’ effect that further spreads fires.”

“It’s like we’re building a nano-brick wall within each cell of the foam,” Grunlan said.

Grunlan said he hoped the first application of the polymer nanocoating for commercial use will begin in January 2014.

However, inventing and building the machines capable of producing and applying the nanocoating on a commercial scale remain obstacles, the scientist said.

   

Tagged categories: Coating chemistry; Coatings technology; Fire; Flame-retardant coatings; Nanotechnology; Polymers; Research

Comment Join the Conversation:

Sign in to our community to add your comments.

Armakleen Company, The
No Ordinary Soda

ARMEX® baking soda-based abrasives from the makers of ARM & HAMMER® products offers over 12 formulas specially engineered for your application and your budget.


BASF
New resins from BASF will have metals loving water:

Excellent corrosion resistance, low VOC, high gloss, thin films basf.us/industrialcoatings
polyorders@basf.com
800-231-7868


Durability + Design (D+D)
Be There!
May 20-22

Network with the emerging technical community of specifiers, architects, contractors, and facility owners at the first Building Performance Conference.


Zip Wall, LLC
ZipRail™ Dual-Seal makes floors & ceilings dust tight

Create a dust-tight seal at the floor and ceiling in seconds- without tape or ladders. The new ZipRail™ Dual Seal pushes the plastic sheeting tight to the ceiling and the floor at the same time.


KTA-Tator, Inc. - Corporate Office
KTA Inspection Instruments

Eliminate Application Uncertainties:
• Moisture Content
• Ambient Conditions
• Surface Preparation
• Coating Thickness
Call 1-800-KTA-GAGE
(800-582-4243)


Westcoat
Bringing New Colors To Concrete Surfaces

Liven up your concrete surfaces with Westcoat's newest color choices. Introducing a myriad of Fast Stain, Liquid Dazzle, and Texture-Crete Interior colors.


Acrymax Technologies, Inc.
Go for the Max with Acrymax!

We offer solutions you can count on. Roof coating systems, protective coatings, corrosion control and weatherproofing. Proven performance for over 60 years.

 
 
 
Technology Publishing

The Technology Publishing Network

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

 
EXPLORE D+D:      Interact   |   Blogs   |   Resources   |   Buying Guides   |   Webinars   |   White Papers   |   Classifieds
GET D+D:      Subscribe   |   Advertising Media Kit
KNOW D+D:      About D+D   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2010-2014, Technology Publishing, Co., All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com