Cov khoom lag luam Vitamin txhua tus tau muab tag nrho los ntawm cov paj rwb tej nplaim paj lossis ntoo ua haujlwm, uas yog tsim los ntawm etherification. Cov khoom sib txawv cellulose siv cov neeg sawv cev sib txawv. Tus neeg sawv cev etherplees siv hauv hydroxyethyl cellulose (HEC) yog ethlene oxide siv hauv hydrothermeProylculose (HPMC) yog lwm hom uas muaj qhov chaw sawv cev. (chloromethane thiab propylene oxide).
Nyob rau hauv tiag tiag szone xim thiab latex xim, hydroxyethyl cellulose tuaj yeem siv los ua tuab.
Cov xim hlau tiag tiag yog yooj yim los nag vim yog nws cov nyiaj ntau ntawm kev sib sau ua ke thiab tshwj xeeb. Nws yog ib qho yuav tsum tau ntxiv cov tuab kom nws viscosity kom tau raws li kev ua paug thaum kev tsim kho, txhim kho nws qhov chaw khaws khoom ruaj khov, thiab ua tiav qee lub zog.
Yog tias koj xav tau cov xim hlau tiag tiag kom ua tiav lub zog zoo, cov dej tsis kam, xaiv cov khoom siv raw thiab cov qauv ntawm cov qauv tseem ceeb heev.
Nyob rau hauv ib txwm muaj xwm txheej, tus nqi emulsion siv nyob rau hauv high-zoo pob zeb xim tiag tiag yuav yog qhov tseem ceeb.
Piv txwv li, hauv ib tuj ntawm cov xim pob zeb tiag tiag, tej zaum yuav muaj 300kg ntawm acrylic emulsion thiab 650kg ntawm ntuj xim pob zeb xuab zeb. Thaum cov ntsiab lus zoo ntawm cov emulsion yog 50%, qhov ntim ntawm 300kg ntawm emulsion tom qab 150 litres, thiab lub ntim ntawm 650kg ntawm cov xuab zeb yog hais txog 228 litres. Uas yog hais, pvc (pigment ntim concentration) ntawm cov xim pob zeb tiag tiag yog 60% nyob rau lub sijhawm xim xim loj thiab tsis xwm yeem ntawm qee qhov loj me faib, muab dej qhuav Cov xim hlau tiag tiag tej zaum yuav nyob hauv CPVVC (tseem ceeb heev). Cov xim ntim cov pa pwm txhua lub sijhawm) kwv yees. Raws li cov tuab tuab yog muaj kev txhawj xeeb, yog tias koj xaiv cov xim uas tsim nyog ua tiav thiab cov xim hlau tiag tiag tuaj yeem ua kom tau raws li peb qhov kev ua tau zoo uas xav tau ntawm cov xim av tiag. Yog tias cov ntsiab lus ntawm cov xim pob zeb tiag tiag emulsion yog qhov tsawg, nws yog qhov ua tau zoo dua yog txo cov cellulose siv thiab ua rau tus Real Pob zeb ua tau zoo ntawm cov xim yog qhov zoo dua.
Qee cov neeg lag luam tiag tiag pob zeb tuam ntxhab siv hydroxypropylulose es tsis txhob siv hydroxyethyl cellulose rau nqi thiab lwm yam.
Piv nrog ob hom cellulose, hydroxyethyl cellulose muaj cov dej rov qab zoo dua vim yog gelatin ntawm kub, thiab muaj qee yam kub tsis kam. Rau kev txiav txim siab ua tau zoo, nws raug nquahu kom siv hydroxyethyl cellulose nrog viscosity ntawm 100,000 raws li cov tuab rau cov xim av tiag tiag.
Lub Sijhawm Post: Apr-28-2023