Qhov sib txawv tseem ceeb ntawm gel thiab emulsion yog gel yog ib yam khoom semisolid, whereas emulsion yog kua.
A gel thiab ib qho emulsion yog ob yam khoom sib txawv uas muaj cov khoom zoo sib xws. Txawm hais tias emulsions yog cov tshuaj ua kua, qee zaum peb tuaj yeem pom lawv ua cov tshuaj semisolid yog tias peb siv nws rau cov hom phiaj siv tshuaj pleev ib ce.
YDab tsi yog Gel
A gel yog ib qho khoom siv muaj zog xws li muag thiab tsis muaj zog mus rau tawv thiab tawv. Peb tuaj yeem txhais tau lub gel raws li lub dilute crosslinked system uas qhia tsis muaj cov khoom ntws hauv nws lub xeev khov kho. Nws yog ib qho khoom muag, zoo li cov khoom uas muaj ob los yog ntau tshaj, nrog rau cov khoom ua kua. Gels feem ntau yog kua los ntawm qhov hnyav, tab sis lawv coj li cov khoom siv vim muaj cov qauv 3D crosslinked. Kev tsim ntawm gel yog hu ua gelation.
Daim duab 1: Silica Gel
Y Gelation yog tsim los ntawm cov gel los ntawm kev sib xyaw ntawm cov polymers. Nyob rau hauv cov txheej txheem no, branched polymers ua rau tsim kev sib txuas ntawm cov ceg. Gelation yog ib hom kev sib txuas sib txuas, thiab nws ua rau tsim lub network loj polymer.
Thaum lub sijhawm txheej txheem gelation, ib qho macroscopic molecule tsim ntawm qee qhov taw tes, thiab peb hu qhov taw tes no ua gel taw tes. Nyob rau lub sijhawm no, qhov sib tov poob nws cov dej ntws thiab viscosity thiab dhau los ua qhov loj heev. Peb tuaj yeem tshawb xyuas qhov gel point ntawm lub kaw lus yooj yim los ntawm kev soj ntsuam qhov hloov pauv sai sai hauv viscosity. Tom qab ua tiav ntawm kev tsim cov khoom siv hauv lub network tsis kawg, peb tuaj yeem hu nws ua "gel", thiab cov gel no tsis yaj hauv cov kuab tshuaj. Txawm li cas los xij, cov gel tuaj yeem raug o.
YEmulsion yog dab tsi?
Ib qho emulsion yog ib qho zoo dispersion ntawm feeb ntawm ib cov kua hauv lwm qhov uas nws tsis soluble lossis miscible. Peb tuaj yeem piav qhia txog ib qho emulsion raws li kev sib xyaw ntawm ob cov kua dej uas tsis sib haum nrog ib leeg. Ib qho emulsion yog ib hom colloid. Peb feem ntau nyiam siv ob lo lus emulsion thiab colloid interchangeably, tab sis lub sij hawm emulsion tshwj xeeb piav qhia txog kev sib xyaw ntawm ob cov kua uas tsim cov colloid.
Daim duab 02: Xim yog ib qho Emulsion
Feem ntau, ib qho emulsion muaj ob theem: ib ntus tas mus li thiab ib ntus tsis tu ncua. Nyob rau hauv no ob-theem system, lub discontinuous theem faib thoob plaws hauv lub nruam theem. Thaum lub sij hawm tas mus li yog dej, peb tuaj yeem hu ua emulsion lossis colloid li hydrocolloid. Lub ciam teb ntawm ob lub kua hauv ib qho emulsion yog hu ua "interface".
Tsis tas li ntawd, ib qho emulsion muaj qhov pom huab. Cov tsos mob no yog tshwm sim los ntawm lub xub ntiag ntawm ib theem interface uas muaj peev xwm tawg ib lub teeb beam uas dhau los ntawm emulsion. Thaum tag nrho cov teeb hluav taws xob tau tawg ua ke sib npaug, ib qho emulsion zoo li cov kua dawb.
Qhov txawv ntawm Gel thiab Emulsion yog dab tsi?
Gel thiab emulsion yog ob yam tshuaj sib txawv. Qhov sib txawv tseem ceeb ntawm gel thiab emulsion yog cov gel yog cov khoom siv semisolid, thaum lub emulsion yog kua. Txawm li cas los xij, peb tuaj yeem pom qee qhov emulsions hauv lub xeev semisolid raws li nws daim ntawv thov. Txiv hmab txiv ntoo jelly, gelatin sib tov, tshuaj pleev, thiab lwm yam yog ib co piv txwv ntawm gels thaum pleev xim, butter, qe qe, thiab lwm yam. yog cov piv txwv ntawm emulsions.
Hauv qab infographic qhia txog qhov sib txawv ntawm gel thiab emulsion.
Summary – Gel vs Emulsion
Ib gel thiab ib qho emulsion yog ob yam tshuaj sib txawv. Qhov sib txawv tseem ceeb ntawm gel thiab emulsion yog cov gel yog cov khoom siv semisolid, thaum lub emulsion yog kua. Txawm li cas los xij, qee zaum peb tuaj yeem pom qee qhov emulsions hauv lub xeev semisolid raws li nws daim ntawv thov.
