Hauv kev siv cov khoom siv xim polymer, kev txheeb xyuas qhov tseeb ntawm cov xim masterbatch tsis yog tsuas yog qhov yuav tsum tau ua ua ntej rau kev tswj xyuas kom zoo, tab sis kuj yog ib qho tseem ceeb ntawm kev ua kom cov khoom xim sib xws, kev ua haujlwm ruaj khov, thiab kev ua haujlwm zoo sib xws. Vim muaj ntau yam xim masterbatch khoom nyob rau hauv kev ua lag luam, nrog ntau cov cab kuj resins, xim hom, thiab additive systems, nws yog ib qhov nyuaj rau txiav txim lawv muaj tseeb muaj pes tsawg leeg thiab kev ua tau zoo raws li tsuas yog nyob rau hauv tsos los yog kev paub. Yuav tsum muaj kev txheeb xyuas qhov systematic, suav nrog kev txiav txim siab los ntawm ntau yam xws li cov yam ntxwv ntawm lub cev, tshuaj xyuas tshuaj, thiab kev ua pov thawj.
Kev txheeb xyuas thawj zaug tuaj yeem pib nrog cov tsos thiab lub cev. High- cov xim zoo masterbatch yuav tsum tsis sib xws hauv qhov loj thiab cov duab, nrog lub ntsej muag du thiab tsis muaj qhov pom tseeb xim txawv lossis qhov tsis huv. Xim masterbatches siv cov cab kuj sib txawv ntawm cov xim, pob tshab, thiab kev xav. Piv txwv li, polyethylene carrier xim masterbatches feem ntau yog translucent los yog semi-milky dawb, polypropylene cov cab kuj muaj waxy zoo li, thaum cov cab kuj polystyrene ci dua thiab nkig me ntsis. Kev soj ntsuam seb cov khoom puas ua ke, nqus dej noo thiab tig dawb, lossis muaj cov ntxhiab tsw ntxhiab tuaj yeem muab kev ntsuam xyuas ua ntej ntawm qhov chaw cia khoom thiab cov khoom ruaj khov.
Kev txheeb xyuas ntxiv yuav tsum tau siv cov txheej txheem kev txheeb xyuas cov khoom siv. Fourier transform infrared spectroscopy (FTIR) tuaj yeem txheeb xyuas cov yam ntxwv ua haujlwm ntawm pawg neeg nqa khoom, yog li qhov txawv ntawm polyethylene, polypropylene, polyester, thiab lwm yam. Thermogravimetric tsom xam (TGA) tuaj yeem txiav txim siab qhov kub thiab txias decomposition ntawm cov cab kuj thiab cov xim, pab rau hauv kev ntsuam xyuas ntawm qhov kub thiab txias qhov sib piv. X-ray fluorescence spectroscopy (XRF) tuaj yeem ua tau zoo lossis ib nrab- kev tshuaj xyuas ntau ntawm cov xim tsis muaj kuab lom, paub meej sai sai seb lawv puas muaj ntau yam xws li titanium dioxide lossis hlau oxide. Rau cov organic pigments, siab -kev ua tau zoo kua chromatography (HPLC) los yog huab hwm coj spectrometry tuaj yeem muab cov ntaub ntawv qauv molecular los txheeb xyuas cov xim tshwj xeeb thiab cov tshuaj lom neeg.
Kev txheeb xyuas cov txheej txheem yog txoj kev txheeb xyuas ncaj qha tshaj plaws hauv kev tsim khoom tiag tiag. Ib qho me me ntawm cov masterbatch uas yuav tsum tau sim yog yaj- sib xyaw nrog cov khoom siv matrix uas siv cov txheej txheem ib txwm ua, thiab nws cov dispersibility, yaj xim, thiab flowability thaum lub sij hawm extrusion los yog txhaj molding yog pom. Kev sib cais tsis sib xws nrog cov xim pom tseeb, streaks, lossis cov xim yaj tuaj yeem qhia tias tsis txaus sib xws ntawm cov cab kuj thiab matrix lossis cov xim tsis zoo ntawm cov xim. Sib piv cov xim sib txawv qhov tseem ceeb thiab cov khoom siv kho tshuab nrog cov qauv paub zoo tuaj yeem txheeb xyuas qhov sib xws ntawm cov qauv thiab qhov zoo.
Thaum lub sijhawm kev txheeb xyuas, kev tswj hwm kev ua raws cai thiab kev nyab xeeb yuav tsum raug txiav txim siab. Rau masterbatches npaj rau kev sib cuag zaub mov, cov khoom siv rau menyuam yaus, lossis cov ntawv thov hluav taws xob thiab hluav taws xob, cov kev ntsuam xyuas cuam tshuam yuav tsum paub tseeb tias cov xim thiab cov khoom siv ntxiv tsis muaj cov tshuaj txwv tsis pub siv thiab ua tau raws li qhov yuav tsum tau ua rau qib tsiv teb tsaws, cov ntsiab lus hlau hnyav, thiab lwm yam ntsuas.
Feem ntau, kev txheeb xyuas ntawm cov masterbatches yuav tsum ua tib zoo xav txog kev tshuaj xyuas qhov muag, kev tshuaj ntsuam xyuas, thiab kev sim ua tiav los tsim cov kev txiav txim tiav los ntawm qhov pom mus rau sab hauv. Tsuas yog los ntawm kev tsim cov txheej txheem tshawb fawb thiab rov ua kom pom tseeb tuaj yeem siv tsis raug thiab cov khoom lag luam tsis zoo tuaj yeem tiv thaiv kom tsis txhob nkag mus rau cov txheej txheem tsim khoom, muab kev txhawb nqa zoo rau cov khoom lag luam zoo thiab lub koob npe nrov.