Why is High-Quality Low Foaming Nonionic Surfactants Better?

Substance that facilitates the formation of foam

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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] A blowing agent is a gas that forms the gaseous part of the foam.

Surfactants

Sodium laureth sulfate, or sodium lauryl ether sulfate (SLES), is a detergent and surfactant found in many personal care products (soaps, shampoos, toothpastes, etc.). It is an inexpensive and effective foamer. Sodium lauryl sulfate (also known as sodium dodecyl sulfate or SDS) and ammonium lauryl sulfate (ALS) are commonly used alternatives to SLES in consumer products.[2]

Surfactants which are less effective at foam production, may have additional co-surfactants added to increase foaming. In which case, the co-surfactant is referred to as the foaming agent. These are surfactants used in lower concentration in a detergent system than the primary surfactant, often the cocamide family of surfactants. Cocamide foaming agents include the nonionic cocamide DEA[3] and cocamidopropylamine oxide,[4] and the zwitterionic cocamidopropyl betaine and cocamidopropyl hydroxysultaine.[5]

Blowing agents

There are two main types of blowing agents: gases at the temperature that the foam is formed, and gases generated by chemical reaction. Carbon dioxide, pentane, and chlorofluorocarbons are examples of the former. Blowing agents that produce gas via chemical reactions include baking powder, azodicarbonamide, titanium hydride, and isocyanates (when they react with water).

See also

References

• Grenni, P.; Caracciolo, A. Barra; Patrolecco, L.; Ademollo, N.; Rauseo, J.; Saccà, M.L.; Mingazzini, M.; Palumbo, M.T.; Galli, E.; Muzzini, V.G.; Polcaro, C.M.; Donati, E.; Lacchetti, I.; Di Giulio, A.; Gucci, P.M.B.; Beccaloni, E.; Mininni, G. (). "A bioassay battery for the ecotoxicity assessment of soils conditioned with two different commercial foaming products". Ecotoxicology and Environmental Safety. 148. Elsevier BV: '. doi:10./j.ecoenv..11.071. ISSN -. S2CID .

1. Low foaming nonionic surfactants

Detergent is a very broad term; it includes various kinds of industrial detergents and commercial detergents. Commercial detergent is the most common type of detergent for consumers. Besides the strength of detergency and cleaning efficiency, the property of low foaming has become an important aspect in developing both commercial and industrial detergents.

2. The advantages of low foaming nonionic surfactants

In industrial scale cleaning, having too much foam means more water and electricity are needed to remove the foam and thus increase in cost. Furthermore, operation speed, efficiency and service life of certain facilities and equipment might decline due to long period of time soaking in foam and detergents. A balance between detergency and foam can be achieved by adapting low foaming nonionic surfactant in detergent formulation. Low foaming nonionic surfactants have great surface activity, detergency, wettability, dispersancy and lubricity. At low temperatures low foaming nonionic surfactants still remain excellent fluidity and dispersancy, as well as resistant to hard water, salt, acid and alkali. In addition, low foaming nonionic surfactants can be used in conjunction with other nonionic surfactants, anionic surfactants and cationic surfactants.

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