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Flame retardants from milk



Flame retardants are often added to natural or synthetic polymer materials to prevent or delay the burning of these materials, thereby reducing property losses and casualties cause…

Flame retardants are often added to natural or synthetic polymer materials to prevent or delay the burning of these materials, thereby reducing property losses and casualties caused by fires. Although many commonly used flame retardants can effectively play a flame retardant role, they have certain negative effects on human health and the environment. Therefore, it is imperative to develop new green and environmentally friendly flame retardants.

Recently, researchers from an Italian university came up with a bold idea: extracting flame retardants from milk. One major category of flame retardants are organic compounds containing the element phosphorus. This type of compound can promote the carbonization of polymer materials when a fire occurs instead of decomposing and releasing flammable gases, so it can effectively delay the progress of the fire. Milk contains large amounts of casein, a phosphorus-containing protein, so researchers hypothesized that casein might have a similar flame-retardant effect.

The researchers added casein to the surfaces of three materials: cotton, polyester, and a cotton-polyester blend, and then conducted combustion tests on the materials. The test results are exciting: pure cotton and pure polyester covered with casein will automatically extinguish shortly after being ignited, and most of the materials remain intact; although the mixed material of cotton and polyester covered with casein can burn completely, But the burning rate is much lower than untreated material. Obviously, casein has a very good flame retardant effect.

At present, there are still some technical problems that need to be overcome to put this achievement into practical application. For example, fabrics treated with casein will have a rancid smell, which may hinder the normal use of the fabric. However, there is no doubt that this technology has low cost for development. Toxic and environmentally friendly flame retardants play a very good role in promoting.

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Author: clsrich

 
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