Qhov sib txawv tseem ceeb ntawm theem dispersed thiab dispersion nruab nrab yog tias lub dispersed theem yog ib tug discontinuous theem whereas dispersion nruab nrab yog ib tug nruam nruab nrab.
A dispersion yog ob lub ntsiab lus uas muaj cov theem tawg thiab qhov nruab nrab dispersion. Theem dispersed muaj particles uas faib thoob plaws hauv nruab nrab dispersion.
Dab tsi yog Phaj Dispersed?
Theem dispersed ntawm dispersion yog lub discontinuous theem uas faib thoob plaws hauv nruab nrab dispersion. Nws yog ib qho ntawm ob yam khoom hauv ib qho colloid. Cov khoom ntawm cov theem dispersed muaj ib txoj kab uas hla ntawm 1-100 nm. Muaj peb yam tseem ceeb ntawm cov khoom;
YMultimolecular Colloids
Ib tug multimolecular colloid muaj cov khoom uas tsis tshua muaj molecular hnyav. Cov khoom me me no tuaj yeem sib xyaw ua ke los tsim cov khoom loj uas muaj qhov ntev ntawm cov colloidal ntau. Piv txwv li: sulfur tov. Muaj me me S8molecules uas sib xyaw ua ke los tsim cov aggregates loj hu ua colloidal particles.
YMacromolecular Colloids
Macromolecular colloids muaj cov khoom uas muaj qhov hnyav molecular. Cov khoom no muaj nyob rau hauv ib tug neeg hais nyob rau hauv lub dispersion. Thiab cov khoom ntawm tus kheej no muaj qhov ntev hauv qhov sib txawv colloidal.
Daim duab 01: Cov dej ntws yog qhov tawg ntawm huab cua thaum huab cua yog qhov nruab nrab Dispersion
Associated Colloids
Lub sijhawm tawg ntawm cov colloids txuam nrog cov khoom me me heev. Cov khoom no tuaj yeem sib sau ua cov colloids. Piv txwv li: xab npum thiab xab npum hauv dej.
Dispersion Medium yog dab tsi?
Qhov nruab nrab dispersion yog theem txuas ntxiv ntawm cov colloid. Yog li ntawd, lub dispersed theem faib thoob plaws hauv lub nruab nrab dispersion. Tsis tas li ntawd, qhov nruab nrab dispersion no tuaj yeem nyob hauv txhua lub xeev teeb meem; solid state, liquid state los yog gas state.
Qee lub sij hawm, qhov nruab nrab dispersion kuj hu ua qhov nruab nrab sab nraud vim nws tshwm sim sab nraum qhov tawg. Piv txwv li, mis nyuj yog ib tug colloidal dispersion nyob rau hauv uas lub dispersion nruab nrab yog dej. Lwm qhov piv txwv yog pos huab. Qhov nruab nrab dispersion rau pos huab yog huab cua (dej droplets yog lub dispersed theem).
Dab tsi yog qhov txawv ntawm Cov Phaj Dispersed thiab Dispersion Medium?
Uniaxial vs Biaxial Crystals |
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| Theem dispersed ntawm ib dispersion yog lub discontinuous theem uas faib thoob plaws lub dispersion nruab nrab. | Qhov nruab nrab dispersion yog theem txuas ntxiv ntawm cov colloid. Cov theem dispersed faib thoob plaws qhov nruab nrab dispersion. |
| Tsis muaj. | Ntseeg. |
| Internal Phase | External Phase |
| Examples | |
| plua plav hauv huab cua | Huab cua, dhau los ntawm cov hmoov av tau faib |
Summary – Dispersed Phase vs Dispersion Medium
Dispersed theem thiab dispersion nruab nrab tshwm sim nyob rau hauv tib dispersion. Qhov sib txawv ntawm cov theem dispersed thiab dispersion nruab nrab yog hais tias dispersed theem yog ib tug discontinuous theem whereas dispersion nruab nrab yog ib tug nruam nruab nrab.
