Encyclopedia of Polymer Science and Technology 2012
DOI: 10.1002/0471440264.pst411.pub2
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Antifoaming Agents

Abstract: A review is presented of the materials used to control or eliminate foam in industrial processes and how these materials function. These materials are classified by their chemical type. The main active liquid‐phase components are hydrocarbon oils, polyethers, and silicone fluids; the main solid‐phase components are waxy hydrocarbons and hydrophobic silica. Formulating the antifoam active into a suitable delivery system is essential to ensure optimal performance in terms of activity, physical and chemical stabi… Show more

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Cited by 7 publications
(9 citation statements)
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“…Excessive foam accumulation is a common cause for malfunctions and process failures in various technological processes. It regularly occurs in food and beverage industries and in chemical processing (agitation, distillation) (Gallego-Juárez et al, 2015;Hilberer & Chao, 2012;Nguyen et al, 2000;Schramm & Wassmuth, 1994). In spirit drink distillation, excessive foam accumulation can lead to increased maintenance costs and impaired product quality (Miller, 2019;Pieper et al, 1977).…”
Section: Introductionmentioning
confidence: 99%
“…Excessive foam accumulation is a common cause for malfunctions and process failures in various technological processes. It regularly occurs in food and beverage industries and in chemical processing (agitation, distillation) (Gallego-Juárez et al, 2015;Hilberer & Chao, 2012;Nguyen et al, 2000;Schramm & Wassmuth, 1994). In spirit drink distillation, excessive foam accumulation can lead to increased maintenance costs and impaired product quality (Miller, 2019;Pieper et al, 1977).…”
Section: Introductionmentioning
confidence: 99%
“…Wśród typowych związków chemicznych, jakie wchodzą w ich skład, moż-na wymienić: fosforan tributylu (TBP), polidimetylosiloksan (PDMS), płyny silikonowe, aminy alkilowe, amidy, tioetery, oleje mineralne i roślinne, woski, estry kwasów tłuszczo-wych, alkohole (np. oktanol), kwasy tłuszczowe oraz ich pochodne (olej talowy, stearynian glinu oraz wapniowe, glinowe, cynkowe sole kwasów tłuszczowych), a także wiele róż-nych typów cząstek stałych [9][10][11][12][13][14][15]. Do środków tych można również zaliczyć estry glicerylu oraz syntetyczne estry alkoholi wielowodorotlenowych.…”
Section: Wstępunclassified
“…Do grupy związków przeciwpiennych należą także niejonowe etoksylowane i propoksylowane kopolimery blokowe typu PEO-PPO-PEO lub PPO-PEO-PPO i poloksamery, nazywane cloud point antifoamers: copolymers [9,13,14]. Polarność tego typu kopolimerów zależy od stosunku komponentów hydrofilowych (politlenku etylenu, PEO) do hydrofobowych (politlenku propylenu, PPO).…”
Section: Wstępunclassified
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“…In industry, both foam formation and foam decay are crucial steps for smooth processing. To control undesired foam, antifoaming and/or defoaming agents are traditionally used (Hilberer & Chao, 2012; Rao, 2004). Unfortunately, these additives hinder the regeneration of foam, that is, the surfactant solution cannot be reused and becomes harmful aqueous chemical waste since surfactants are toxic to aquatic organisms (Arthur et al, 2012).…”
Section: Introductionmentioning
confidence: 99%