Yini edala i-viscosity ekomisweni kwesomisi sesifutho… Ungalawula kanjani

Yini edala i-viscosity ekomisweni kwesomisi sesifutho… Ungalawula kanjani

 Isifinyezo:

Ukudla okomisiwe ngesifutho kuhlukaniswe izigaba ezimbili: okunganamatheli kanye ne-viscous. Izithako ezinganamatheli kulula ukufutha ezomile, idizayini yesomisi elula kanye nokugeleza kwempushana yokugcina ngokukhululeka. Izibonelo zezinto ezingezona izinduku zihlanganisa impushana yeqanda, impushana yobisi, izixazululo nezinye i-maltodextrin, izinsini namaprotheni. Endabeni yokudla okunamathelayo, kunenkinga yokomisa ngaphansi kwezimo ezivamile zokumisa isifutho. Ukudla okunamathelayo kuvame ukunamathela odongeni lokomisa, noma kuba ukudla okunamathelayo okungenamsebenzi emakamelweni okomisa nezinhlelo zokuhamba, okunezinkinga eziphansi zokusebenza kanye nesivuno somkhiqizo. Ukudla okushukela ne-asidi kuyizibonelo ezijwayelekile.

I-Viscos yinto ehlangatshezwana nayo ekumisweni kwezinto zokudla ezinothe nge-glycolic acid. I-powder viscosity iwuhlobo lokusebenza kokunamathela kokuhlangana. Ingakwazi ukuchaza i-viscosity yezinhlayiyana (ukuhlangana) kanye ne-viscosity ye-particle-wall (ukunamathela). Isilinganiso samandla okubopha ngezinhlayiya zempushana sibangelwa izici zayo zangaphakathi ezibizwa ngokuthi ukuhlangana, ukwakha izixuku embhedeni wempuphu. Ngakho-ke, amandla adinga ukudabula i-powder agglomerate kufanele abe mkhulu kunobumbano. I-Adhesion iwukusebenza esibonakalayo, futhi izinhlayiya zempushana zinamathela kumkhuba wemishini yokumisa isifutho. Ukubumbana nokunamathela kuyimingcele ebalulekile yokuklama izimo zokomisa nokomisa. Ukubunjwa kwendawo yezinhlayiya zempushana kubhekene ne-viscosity. Ukubumbana nokuthambekela kokunamathela kwe-powder particle surface materials kuhlukile. Ngenxa yokuthi ukomisa kudinga inani elikhulu le-solute ukuze lidluliselwe endaweni yezinhlayiyana, kuyinqwaba. Izici ezimbili ze-viscosity (ukubumbana nokunamathela) zingahlala ndawonye ekufutheni okomisa izinto zokudla ezinoshukela. I-viscosity ephakathi kwezinhlayiya ukwakheka kwamabhuloho e-liquid angashintshi, amabhuloho anguketshezi anyakazayo, amaketanga emishini phakathi kwama-molecule, namandla adonsela phansi e-electrostatic namabhuloho aqinile. Isizathu esiyinhloko sokunamathela kwezinhlayiya ze-powder odongeni ekamelweni lokumisa ukulahlekelwa kwezinto ezitholakala kushukela wokufafaza nokudla okune-asidi. Lapho impushana igcinwa isikhathi eside, iyoma odongeni.

Kuholela ku-viscous

Skhuleka ukudla okucebile okomisa impushana ukugaywa kabusha ubuchwepheshe bokumisa isifutho. Ushukela ophansi wesisindo samangqamuzana uyinselele kakhulu (i-glucose, i-fructose) nama-organic acid (i-citric acid, i-malic acid, i-tartaric acid). Izinto ezincane zamangqamuzana njengokumuncwa kwamanzi amaningi, i-thermoplasticity kanye nezinga lokushisa eliphansi le-vitrification transition (Tg) zifaka isandla ezinkingeni ze-viscosity. Izinga lokushisa lokumisa isifutho lingaphezulu kwe-Tg20°C. Eziningi zalezi zingxenye zakha izinhlayiya ezithambile endaweni ye-viscous, ezibangela i-powder viscosity, futhi ekugcineni zenze isakhiwo sokunamathisela esikhundleni sempushane. Ukuhamba okuphezulu kwamangqamuzana ale molecule kungenxa yokushisa kwayo okuphansi kwe-vitrification transition (Tg), okuholela ezinkingeni ze-viscosity kuma-spray dryers avame ukuthandwa ezingeni lokushisa. Izici eziyinhloko zokushisa kokuguqulwa kwengilazi kanye nezinga lokushisa lokuguqulwa kwesigaba se-amorphous. Umcimbi wokushintsha kwengilazi wenzeke kushukela oqinile oqinile, owenziwe nge-amorphous, owenze uguquko lwaba yisigaba soketshezi lwenjoloba ethambile. Amandla angaphezulu nengilazi eqinile anamandla aphansi futhi awanamatheli endaweni eqinile engenamandla amancane. Ngenxa yesimo sengilazi esikebheni senjoloba (noma uketshezi), ingaphezulu lezinto ezibonakalayo lingaphakanyiswa, futhi ukuxhumana phakathi kwe-molecule nendawo eqinile ingaqala. Emisebenzini yokomisa ukudla, umkhiqizo usesimweni soketshezi noma sokunamathela, futhi ukudla okuwuketshezi/okunamathelayo okukhipha i-ejenti yepulasitiki (amanzi) kuba ingilazi. Uma izinto zokusetshenziswa zokudla zingaguquki ekushiseni okuphezulu okomisa kunokushisa okuyingilazi, umkhiqizo uzogcina i-viscosity yamandla aphezulu. Uma lolu hlobo lokudla luthintwa indawo eqinile enamandla amakhulu, luzonamathela noma lunamathele kulo.

Ukulawula i-viscosity 

Kukhona isayensi yezinto zokwakha kanye nezindlela ezisekelwe enqubweni zokunciphisa i-viscosity. Izindlela eziyisisekelo zesayensi yezinto ezisetshenziswayo zihlanganisa izinto ezinesisindo esikhulu samangqamuzana okomisa uketshezi izithasiselo zokwandisa izinga lokushisa ngaphandle kokuguqulwa kwe-vitrification, nezindlela ezisuselwe enqubweni zihlanganisa izindonga nezingezansi zegumbi lomshini.