Durability + Design
 
About  |  Subscribe  |  Advertise  |  Connect 
Follow us on Twitter Like us on Facebook

 

Download our free ebook: Generic Architectural Coatings: Performance and Uses

D+D 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.

Keim Mineral Coatings
Concrete Coatings penetrate, chemically bond and will never peel, blister or fade

Complete mineral silicate concrete repair and finish systems to solve concrete problems for decades long beauty and protection.


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

Determine Specification Compliance:
• Surface Preparation
• Moisture Content
• Paint Materials & Application
• Aesthetics
Contact:
Kevin Brown, 336-874-2651
Corporate:
1-800-245-6379 x208


Dumond Chemicals Inc.
Peel Away®1 Heavy Duty Paint Remover

has been the #1 Choice of Professionals who perform Historic Restoration and Lead Paint Abatement for over 25 years. Peel Away®1 is an eco-safe method for removing up to 30 Coats of oil-based lead paints in a single application.


Armorthane
Best Floor Coatings with Maximum Durability

Coat CONCRETE or WOOD flooring for wheel and foot traffic, chemical resistance, weather-proofing, indoors and outside. Variety of textures for beauty, resilience and safety.


Atlas Material Testing Technology

Helping You Put Your Products To The Test

• Outdoor Accelerated
Weathering
• Laboratory Testing
Services
• Accelerated Weathering
Instruments

www.atlas-mts.com atlas.info@ametek.com


Garland Company
Architectural Wall Coating Damproofs and Beautifies

Tuff-Coat™ multi-functional coating bridges hairline cracks, hides stains and discoloration, and reduces wall temperature, increasing the wall's life cycle.


Chicago Corrosion Group
Vendor-neutral corrosion consulting

What you don’t know about painting is costing you a fortune. Call today to see how CCG’s vendor-neutral, owner’s advocacy saves our clients millions.


AGC Chemicals
FEVE Resins Used On Joe DiMaggio Children’s Hospital Curtain Walls

Not only do LUMIFLON FEVE resin-based coatings provide added durability on metal-clad buildings, they are a leading product in the area of environmental sustainability.

 
 
 

Technology Publishing Co., 2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@durabilityanddesign.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 

© Copyright 2012-2015, Technology Publishing Co., All rights reserved