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flame quencher offers less toxic approach to fighting fire

by:Qihao      2019-09-01
A new fire-
Flame retardant coatings suppress flames without the toxic effects of some commercially used flame retardant.
New experiments have shown that a piece of furniture foam and flame immersed in the coating is stuffy and extinguished.
\"This fire can\'t continue,\" said Jaime glenland, A material scientist at Texas A & M University, who led the work . \".
\"It knocked itself out.
\"The new coating produces a thick layer of gas that makes the fire of oxygen even stronger,\" said glenlan.
Galina Laufer, a researcher at glenland lab, designed the coating by combining two polymers called PVS (
(1) sodium polypropylene salt
A handful of sugar made from the shell of lobster, shrimp and other shellfish.
The researchers tested the coating on a highly flammable material polyurethane foam commonly used for furniture.
After applying a few layers of Nano
Thick coating, Laufer holds the torch on the foam for 10 seconds.
The fire died in smoke and the foam was just burnt, not melted, glenland said.
Fires degrade the coating, destroy and form bonds, releasing ammonia, water, and sulfur dioxide-
All non-gas bodies.
The group reported in April 12 that the gas was heavy and sat on the foam, starving the oxygen fire.
This coating is not mixed in foam like a traditional flame retardant, but is used for applications on the surface of the product.
Therefore, it may be easier for furniture manufacturers to use. Adding a 10-layer coating (
About 30 nm thick)
Fire expert Charles Wilkie says the original weight of the foam has only increased by a little more than 5%, while the traditional flame retardant has increased by a little more than 20%
A flame retardant material from the University of MILWAUKEE Marquette.
\"This is a very good way,\" said Wilkie . \".
\"It is practical and has great potential for application.
\"Wilkie wants to see how the foam holds when the flame is applied for more than 10 seconds to get closer to the real fire.
Cynthia de Wit, an environmental chemist at the University of Stockholm, said the new flame retardant is very much needed.
Many of the classic BR flame retardant are now banned or phased out in many countries as there are concerns about the toxic effects of prolonged useterm exposure. \"There\'s a cost-
Interests, \"said de Wit.
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