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] A blowing agent is a gas that forms the gaseous part of the foam.
Surfactants
Co-surfactants
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
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.
See also
- Antifoaming agent
- Sodium coceth sulfate
- Sodium lauryl sulfate
- Sodium bicarbonate
- Sodium laureth sulfate
- Surfactants
References
- ^ 1972, 31, 612IUPAC Compendium of Chemical Terminology 2nd Edition (1997)
- ^ Sodium Laureth Sulfate POE(2). Chemical Land 21, Seoul, Korea. Product Identification
- ^ "Cocamide DEA".
- ^ "Cocamidopropylamine Oxide (Explained + Products)".
- ^ "Cocamidopropyl Hydroxysultaine".
- 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. (2018). "A bioassay battery for the ecotoxicity assessment of soils conditioned with two different commercial foaming products". Ecotoxicology and Environmental Safety. 148. Elsevier BV: 1067–1077. S2CID 51937556.