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Spray foam. Spray foam insulation extruding from a duct. Spray foam (expanding foam in the UK) is a chemical product created by a chemical reaction of two component parts, commonly referred to as side A and side B. [1] Side A contains very reactive chemicals known as isocyanate. Side B contains a polyol, which reacts with isocyanates to make ...
BASF plant in Ludwigshafen, 1865. BASF is an acronym for Badische Anilin- und Sodafabrik (German for 'Baden Aniline and Soda Factory'). It was founded by Friedrich Engelhorn on 6 April 1865 in Mannheim, in the German-speaking state of Baden. Engelhorn had been responsible for setting up a gasworks and street lighting for the town council in 1861.
Firefighting foam is a foam used for fire suppression. Its role is to cool the fire and to coat the fuel, preventing its contact with oxygen, thus achieving suppression of the combustion. Firefighting foam was invented by the Moldovan engineer and chemist Aleksandr Loran in 1902. [1] The surfactants used must produce foam in concentrations of ...
Foaming agent. A foaming agent is a material such as a surfactant or a blowing agent that facilitates the formation of foam. A surfactant, when present in small amounts, reduces surface tension of a liquid (reduces the work needed to create the foam) or increases its colloidal stability by inhibiting coalescence of bubbles. [1]
You won't see these Walmart deals again until Black Friday. AOL. The 10 best cult-favorite cleaning products. AOL. This 2-tier under-sink organizer is a 'great space-saver' and today it's 20% off.
Defoamer. A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably. Strictly speaking, defoamers eliminate existing foam and anti-foamers prevent the formation of further foam.
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