Uma umoya ungena oketshezini, njengoba ungancibiliki emanzini, uhlukaniswa ube amabhamuza amaningi oketshezi ngaphansi kwamandla angaphandle, kwakha uhlelo olungafani. Uma umoya ungena oketshezini futhi wakha igwebu, indawo yokuxhumana phakathi kwegesi noketshezi iyanda, futhi amandla akhululekile ohlelo nawo akhuphuka ngokufanele.
Iphuzu eliphansi kakhulu lihambisana nalokho esivame ukukubiza ngokuthi ukuhlushwa kwe-micelle okubalulekile (i-CMC). Ngakho-ke, lapho ukuhlushwa kwe-surfactant kufinyelela ku-CMC, kunenani elanele lama-molecule e-surfactant ohlelweni ukuze avumelane ngokuqinile ebusweni boketshezi, akhe ungqimba lwefilimu ye-monomolecular engenasikhala. Lokhu kunciphisa ukucindezelwa kobuso besistimu. Lapho ukucindezelwa kobuso kwehla, amandla amahhala adingekayo ekukhiqizweni kwe-foam ohlelweni nawo ayancipha, okwenza ukwakheka kwe-foam kube lula kakhulu.
Ekukhiqizweni nasekusetshenzisweni okusebenzayo, ukuqinisekisa ukuzinza kwama-emulsion alungisiwe ngesikhathi sokugcina, ukugcwala kwe-surfactant kuvame ukulungiswa ngaphezu kokugcwala kwe-micelle ebalulekile. Nakuba lokhu kuthuthukisa ukuzinza kwe-emulsion, futhi kunezinkinga ezithile. Ama-surfactant amaningi awagcini nje ngokunciphisa ukucindezeleka kobuso besistimu kodwa futhi amboza umoya ongena ku-emulsion, akhe ifilimu yoketshezi eqinile, futhi ebusweni boketshezi, ifilimu yama-molecular enezingqimba ezimbili. Lokhu kuvimbela kakhulu ukuwa kwe-foam.
Igwebu liwukuhlanganiswa kwamagwebu amaningi, kanti igwebu lakhiwa lapho igesi ihlakazeka oketshezini—igesi njengesigaba esihlakazekile kanye noketshezi njengesigaba esiqhubekayo. Igesi engaphakathi kwamagwebu ingasuka kwelinye igwebu iye kwelinye noma ibalekele emoyeni ozungezile, okuholela ekuhlanganeni kwamagwebu nokunyamalala kwawo.
Kumanzi ahlanzekile noma ama-surfactant kuphela, ngenxa yokwakheka kwawo okufanayo, ifilimu ye-foam ephumayo ayinakho ukunwebeka, okwenza i-foam ingazinzile futhi ithambekele ekuzisuseni ngokwayo. Ithiyori ye-Thermodynamic isikisela ukuthi i-foam ekhiqizwa koketshezi oluhlanzekile ingeyesikhashana futhi iyanyamalala ngenxa yokugeleza kwefilimu.
Njengoba kushiwo ngaphambili, ezimbozweni ezisekelwe emanzini, ngaphandle kwendawo yokusabalalisa (amanzi), kukhona nezihlanganisi ze-polymer emulsification, kanye nezihlakaza, ama-wetting agents, izithisi, nezinye izithasiselo ze-surfactant-based coating. Njengoba lezi zinto zihlala ndawonye ohlelweni olufanayo, ukwakheka kwe-foam kungenzeka kakhulu, futhi lezi zingxenye ezifana ne-surfactant ziqinisa i-foam ekhiqiziwe.
Uma ama-ionic surfactants esetshenziswa njenge-emulsifiers, ifilimu yebhamuza ithola ishaja kagesi. Ngenxa yokuxosha okukhulu phakathi kwamashaja, amabhamuza ayamelana nokuhlangana, okucindezela inqubo yamabhamuza amancane ahlangana abe makhulu bese ewa. Ngenxa yalokho, lokhu kuvimbela ukususwa kwebhamuza futhi kuzinzise i-foam.
Isikhathi sokuthunyelwe: Novemba-06-2025