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wynspread SW - 277消防のためのスーパーウェッティング

簡単な説明:

There’s serious science behind getting firefighting foams to spread across fuel

It comes down to the spreading coefficient. In simple terms, it’s the difference between the surface tension of the fuel and the interfacial tension between it and the firefighting liquid.

If the spreading coefficient is positive, the firefighting liquid well spread. If it’s not, wetting will not be complete, and the fire can rage on unabated.



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Historically, drastically reducing surface tension was a job for fluorinated surfactants, such as perfluoroalkyl surfactants (or PFAS), but these solutions have come under scrutiny due to environmental and human health concerns.

次世代のAFFFソリューションは、シリコン界面活性剤に依存しています

AFFF formulators are now turning their attention to silicone surfactants, more specifically trisiloxane alkoxylates, which have shown exceptional performance in AFFF solutions, as well as spreading applications in the agriculture, coating, paints and textile industries.

シリコン界面活性剤は、水面張力を劇的に減少させる可能性があり、耐久性が拡大した優れた拡散と安定したフォームをもたらします。

主な機能と利点

• Lower surface tension compared to traditional organic surfactants.

• Able to form stable foams that spread across low energy hydrocarbon烃 surfaces, such as fuels

• Formulated without fluorine. 


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