Ina uru te hau ki roto i te wai, nā te mea kāore e wairewa i roto i te wai, ka wehea kia maha ngā mirumiru e te wai i raro i te kaha o waho, ka hanga he pūnaha rerekē. Kia uru te hau ki roto i te wai, ka hanga he pahuka, ka piki ake te horahanga pā i waenga i te hau me te wai, ā, ka piki ake anō hoki te pūngao kore utu o te pūnaha.
Ko te pūwāhi iti rawa e rite ana ki tā tātou e kī nei ko te kukū micelle whakahirahira (CMC). Nō reira, ina tae te kukū surfactant ki te CMC, he nui te maha o ngā ngota surfactant i roto i te pūnaha hei whakarārangi kiato i runga i te mata wai, ka hanga he paparanga kiriata monomolecular kore-āputa. Mā tēnei ka whakaitihia te taumahatanga mata o te pūnaha. Ina heke te taumahatanga mata, ka heke hoki te pūngao kore utu e hiahiatia ana mō te whakaputa pahuka i roto i te pūnaha, ka māmā ake te hanganga pahuka.
I roto i te mahi whakaputa me te whakamahinga, hei whakarite i te pumau o ngā emulsions kua oti te whakarite i te wā e rongoa ana, ka whakatikatikaina te kukū o te surfactant ki runga ake i te kukū micelle matua. Ahakoa ka whakarei ake tēnei i te pumau o te emulsion, he ngoikoretanga anō hoki. Ko te nui rawa o ngā surfactants ehara i te mea ka whakaiti noa i te taumahatanga o te mata o te pūnaha engari ka kapi hoki i te hau e tomo ana ki te emulsion, ka hanga he kiriata wai pakari, ā, i runga i te mata wai, he kiriata ngota paparua. Ka ārai nui tēnei i te hinganga o te pahuka.
He kohinga mirumiru te pahuka, engari ka puta he mirumiru ina marara te hau i roto i te wai—ko te hau te āhua marara, ko te wai te āhua tonu. Tērā pea ka heke te hau i roto i ngā mirumiru mai i tētahi mirumiru ki tētahi atu, ka mawhiti rānei ki te āhuarangi e karapoti ana, ka honoa, ka ngaro hoki ngā mirumiru.
Mō te wai parakore, mō ngā matū horoi rānei anake, nā te āhua ōrite o te hanganga, kāore e ngāwari te kiriata pahuka e puta mai ana, ā, ka kore e pumau te pahuka, ka ngāwari hoki te whakakore i a ia anō. E kī ana te ariā thermodynamic he rangitahi te pahuka e puta mai ana i roto i ngā wai parakore, ā, ka memeha haere nā te rerenga o te kiriata.
E ai ki te kōrero i mua ake nei, i roto i ngā paninga wai, i tua atu i te reo marara (wai), kei reira anō ngā emulsifiers mō te emulsification polymer, me ngā dispersants, ngā makuku, ngā whakamātotoru, me ētahi atu tāpiringa paninga surfactant. Nā te mea kei te noho tahi ēnei matū i roto i te pūnaha kotahi, he tino tūponotanga te hanganga o te pahuka, ā, mā ēnei wāhanga rite ki te surfactant ka whakau ake i te pahuka i hangaia.
Ina whakamahia ngā matū horoi ionic hei emulsifier, ka whiwhi te kiriata mirumiru i te utu hiko. Nā te kaha o te pana i waenga i ngā utu, ka ātete ngā mirumiru i te whakakotahitanga, ka pehi i te tukanga o te hanumi o ngā mirumiru iti ki ngā mea nunui ake, kātahi ka hinga. Nō reira, ka aukati i te tangohanga o te pahuka, ā, ka whakau i te pahuka.
Wā tuku: Whiringa-ā-rangi-06-2025