Marka hawadu gasho dareere, maadaama aanay biyuhu ku milmi karin, waxay dareeruhu u qaybsamaan xumbo badan oo xoog dibadeed ah, taasoo samaysa nidaam kala duwan. Marka hawadu gasho dareeraha oo ay samayso xumbo, meesha xidhiidhka u dhexeeya gaaska iyo dareeraha ayaa kordha, tamarta xorta ah ee nidaamka ayaa sidoo kale kor u kacda.
Meesha ugu hooseysa waxay u dhigantaa waxa aan caadi ahaan u tixraacno sida xoogga micele ee muhiimka ah (CMC). Sidaa darteed, marka diirada surfactant gaaro CMC ah, waxaa jira tiro ku filan oo ah molecules surfactant in nidaamka si cufan isku toosiya dusha dareeraha ah, samaynta lakabka monomolecular a free-free. Tani waxay yaraynaysaa xiisadda dusha sare ee nidaamka. Marka xiisadda dusha sare ay hoos u dhacdo, tamarta bilaashka ah ee looga baahan yahay xumbo-abuurka nidaamka ayaa sidoo kale hoos u dhigaya, samaynta xumbo-samaynta mid aad u fudud.
Wax soo saarka wax ku oolka ah iyo codsiga, si loo hubiyo xasilloonida emulsions diyaarsan inta lagu jiro kaydinta, xoojinta surfactant waxaa badanaa lagu hagaajiyaa ka sarreeya diiradda micele ee muhiimka ah. Iyadoo tani ay kor u qaadayso xasilloonida emulsion, waxay sidoo kale leedahay cillado gaar ah. Surfactants-ka xad-dhaafka ah kaliya ma yareeyaan xiisadda dusha sare ee nidaamka, laakiin sidoo kale waxay daboolaan hawada gelaysa emulsion-ka, iyaga oo samaynaya filim dareere ah oo adag, iyo dusha dareeraha, filim unugyo bilayer ah. Tani waxay si weyn u horjoogsanaysaa burburka xumbo.
Xumbadu waa isu geynta goobooyin badan, halka xumbo ay samaysmaan marka gaasku ku kala firdhiyo dareere-gaas sida wejiga kala firdhiyey iyo dareere ahaan wejiga joogtada ah. Gaaska ku jira xumbooyinka waxaa laga yaabaa inuu ka guuro hal xumbo una guuro mid kale ama wuxuu u cararaa jawiga ku hareeraysan, taasoo u horseedda xumbo-xunbo iyo luminta.
Biyaha saafiga ah ama dusha sare ee keligood, sababtoo ah isku-dhafka isku midka ah, filimka xumbo ee ka soo baxa ayaa ka maqan barti, taasoo ka dhigaysa xumbadu mid aan xasilloonayn oo u nugul is-ciribtirka. Aragtida Thermodynamic waxay soo jeedinaysaa in xumbo ka dhalata dareeraha saafiga ah ay tahay mid ku meel gaar ah oo ay daadiso dheecaanka filimka.
Sida hore loo soo sheegay, in daahan biyaha ku salaysan, ka sokow dhexdhexaad ah kala firdhiso (biyaha), waxaa sidoo kale jira emulsifiers for emulsification polymer, oo ay la socdaan kala firdhiso, wakiilada qoynta, dhumucyada, iyo daro daahan kale oo ku salaysan surfactant. Maadaama walxahan ay ku wada nool yihiin nidaam isku mid ah, samaynta xumbo waxay u badan tahay, iyo qaybahan u eg surfactant-ka ayaa sii dejinaya xumbo soo baxday.
Marka surfactants ionic loo isticmaalo emulsifiers ahaan, filimka xumbada wuxuu helayaa kharash koronto. Sababo la xiriira diidmo xooggan oo u dhexeeya eedeymaha, goobooyinku waxay iska caabiyaan isku-darka, iyaga oo xakameynaya habka xumbo-yar-yar oo ku biira kuwa waaweyn ka dibna dumaya. Sidaa darteed, tani waxay joojinaysaa baabi'inta xumbo waxayna dejisaa xumbo.
Waqtiga boostada: Nov-06-2025