Emulsion - wani ruwa cakuda

Emulsion - a cakuda abubuwa. Ya kunshi daya bangaren lafiya barbashi insoluble a cikin sauran. Wannan sashi da ake kira "Tarwatsa lokaci". Wani abu - watsawa matsakaici. A ta farko bangaren da aka rarraba. "Emulsion" - wannan lokaci yana da wani Latin asalin. Fassara yana nufin "to madara, madara da". Bari mu bincika wannan ra'ayi a cikin mafi daki-daki.

Overview

Saboda wani biyu da taya wanda ba su gauraya ko amsa chemically, yana yiwuwa su yi wani emulsion. Daya daga cikin aka gyara ne kusan ko da yaushe ruwa. Wani abu kunshi wani weakly iyakacin duniya, ko tsaka tsaki kwayoyin (msl fats). A farko da aka sani ga duk emulsion - shi ne madara. A nan, da kitsen barbashi dispersible a ruwa. A size daga cikin mafi karami barbashi na tarwatsa lokaci ne 1-50 .mu.m, don haka emulsions ana coarsely tarwatsa tsarin. Low-natsuwa ruwa - unstructured. Gaurayawan da wani babban taro - tsari. A thermodynamic filaye mai emulsion - shi ne wani m tsarin. Girma a lokaci droplets ne babba, da kuma cakuda shi ne unstructured.

rarrabuwa

Type emulsion samu dogara a kan lokaci girma rabo da kuma abun da ke ciki, da adadin da yanayin da emulsifier, ta sinadaran aiki, da hanyar da hadawa Hanyar.

1. Direct admixture da kankanin barbashi wani apolar ruwa da kuma insoluble a iyakacin duniya zamani (o / w - da magana "mai a ruwa"). Domin irin wannan cakuda da na emulsifiers za a iya amfani da su ne narkewa a cikin ruwa, kamar barbashi bitumen. Su kwayoyin suna adsorbed a kan surface film na m-lokaci, Munã rage ba kawai tashin hankali, amma kuma samar da wani m film.
2. Kishiya (V / m) cakuda, wadda ake amfani da ruwa-insoluble emulsifier.

Chemical effects a kan emulsion, matsa lamba, abun da ke ciki canji na iya haifar da inversion.

1. Emulsion daskare - a cakuda da cewa an kafa spontaneously spontaneously. An dauke su thermodynamically barga. Misalai ne da kafofin yada barga emulsions lokacin da zafin jiki da iyaka ga blending bulan. Wannan category ma ya hada da lubricants da ruwaye don sanyaya.
2. Lyophobic emulsion - cakuda kafa ta inji, Ft Irfan ko lantarki blending. Su thermodynamically musamman m. Irin wannan garwayayye ba tare da emulsifiers na dogon lokaci ba ya wanzu. Good aka gyara ciki har da: surfactants, high kwayoyin nauyi, ruwa mai narkewa abubuwa da wani babban daskararru watsawa.

liyafar

Akwai biyu samar da fasahar emulsion. A farko - cikin hanyar lafiya, kawar da ƙungiyõyin. Na biyu - da fim-kafa tsari, ya bi ta hanyar katsewa a kananan guda. A farko embodiment, da abu ne kara sannu a hankali zuwa ga watsawa. Wajibi ne cewa juyin mulkin ne kullum a high gudun stirring. A wannan yanayin, da ingancin daga cikin cakuda zai dogara ne a kan daban-daban dalilai. A musamman, a kan hadawa kudi na gwamnati da kuma adadin dispersible abu, ta maida hankali, zafin jiki da kuma acidity. Na biyu Hanyar - wani tsari a cikin abin da wani fim ne kafa a kan surface na wani lokaci. Kasa cikin ƙaho iska. Kumfa hawaye film cikin kananan saukad da burge duk ƙarar da ruwa. A lokacin mu fara yin amfani da iska maimakon duban dan tayi. Wannan yana sa, kawar da fim a cikin ko karami guda.

halaka garwayayye

Tun da akwai wani yunkri warwarewarsu ga emulsion a kan lokaci. Akwai lokatai da lokacin da shi wajibi ne don hanzarta aiwatar da rage taro na fili. Wannan bukatar ne dacewa a lokacin da kasancewar wani matuƙar mayar da hankali emulsion hana aiwatar da magani na kaya ko ta daidai amfani. Don hanzarta aiwatar da rage taro na bayani a cikin hanyoyi da dama:

1. A sunadarai hanya. Used reagents tareda žata surface fina-finai na emulsifier. A wannan yanayin da korau cajin na maida hankali a kan surface fim ne neutralized. A wannan manufa, da yin amfani da kwayoyin Additives tushen abin da ake ci kari (Ta ilimin aiki abubuwa - demulsifiers).
2. Bugu da kari na wani emulsifier haddasa samuwar cations, wanda jawo hankalin korau surface cajin da surface fina-finan sa takobin tada zaune tsaye emulsifier. bayani jihar kwanciyar hankali rage-rage.
3. Canzawa wasu emulsifier surfactant bangaren (PAVom). Yana dilutes da taro na farko, amma da kanta ba ya samar da wani karfi isasshe fim.
4. Thermal hanya. Tare da wannan hanya, da emulsion ne hõre thermal effects, wanda ya haddasa ta cuta.
5. Inji Hanyar. Wannan embodiment hanya kuma ya kira wani SEPARATOR. A emulsion aka allura sannu a hankali a cikin juyawa tare da babban mai kusurwa gudu ganga. A bayani fadi a cikin bangaren kasarun adadi da nauyi.
6. Hanyar lantarki kona ko ƙara electrolyte zuwa emulsion. A wannan hanyar rushe stabilized korau cajin surface garwayayye fim.

aikace-aikace

Cikin kewayon aikace-aikace na emulsions a cikin masana'antu ƙwarai. A musamman, da mahadi aka yi amfani:

1. A samar da margarine da kuma man shanu.
2. A sabulu shawara.
3. A samar da kayan sanya na halitta roba.
4. A yi. Alal misali, bitumen emulsion - wannan fili ne nonflammable.
5. A noma: magungunan kashe qwari - da dama da kwayoyi da halaka shuka kwari.
6. Domin likita dalilai: izgotolvenie daban-daban magunguna, man shafawa, kayan shafawa.
7. A zanen, ta amfani da daban-daban emulsion Paints.
8. Gashi Cosmetics, emulsion, kare da gashi surface lokacin da zanen. Alal misali, emulsion exhibiting (wannan oxidizer ga Paint).
9. The man fetur masana'antu yana amfani da wata cakuda da ruwa da man fetur, cikinsa da watsawa na daya ruwa lokaci zuwa wani wuri daukan tare da kankanin droplets - globules.