Admixtures ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov kev ua tau zoo ntawm lub tsev qhuav-colleded. Cov tshuaj xyuas cov hauv qab no thiab muab piv cov khoom yooj yim ntawm cov txiv hmab txiv ntoo thiab cellulose, thiab ntsuas kev ua tau zoo ntawm cov khoom siv colf qhuav siv admixtures.
Redispersible looj hmoov
Redispersible Litexr hmoov yog ua los ntawm cov tshuaj tsuag los ntawm cov tshuaj tsuag kom qhuav ntawm cov polscer tshwj xeeb emulsion. Cov txiv hmab qhuav plas yog qee cov tshuaj pleev ib ce ntawm 80 ~ 100mm tau sib sau ua ke. Cov lus no yog soluble hauv dej thiab tsim ib qho ruaj khov me ntsis loj dua li cov thawj emulsion cov lus, uas ua ib zaj duab xis tom qab lub cev qhuav dej thiab ziab.
Kev ntsuas kev hloov kho txawv ua rau cov redispersible looj cov khoom xws li dej tsis kam, huab cua tsis kam thiab hloov tau. LASXR Hmoov Siv Hauv Tshuaj Tshuaj Khib Yuav Txhim Kho Qhov Kev Cuam Tshuam, Detabion Desistance, Kev Kho Kom Zoo, Dej Zog thiab Flexural zog ntawm lub cug.
Cellulose ether
Cellulose ether yog ib lo lus dav dav rau cov khoom lag luam uas tsim los ntawm cov tshuaj tiv thaiv ntawm alkali cellulose thiab tus sawv cev rau qee yam. Alkali cellulose yog hloov los ntawm cov neeg sawv cev sib txawv kom tau txais cov kws muaj kev sib txawv cellulose. Raws li Ionization cov yam ntxwv ntawm cov neeg tuaj lwm tus neeg cellulose tuaj yeem muab faib ua ob pawg: ionic (xws li methyl cellulose). Raws li hom hloov chaw, ether ether tuaj yeem faib ua monether (xws li hydrothpropyl methyl cellulose). Raws li txawvfility solubility, nws tuaj yeem faib ua dej-solible (xws li cellulose cellulose (xws li cellulle cellulose, thiab dej-soluble cellulose yog Faib rau hauv cov hom tseem ceeb thiab qhov muag tau kho kom tsawg dua.
Lub tshuab ntawm kev ua ntawm cellulose ether hauv cug tshuaj yog raws li hauv qab no:
(1) Tom qab lub cellulose ether nyob rau hauv lub cug kab tshuaj yog ua kom muaj txiaj ntsig ntawm cov khoom noj qab zib, thiab cov cellulose ether, raws li kev tiv thaiv etoid, "wraps" cov khoom Hais thiab txheej txheej ntawm cov yeeb yaj kiab lub raj yog tsim ntawm nws sab nraud, uas ua rau cov tshuaj cug dua, thiab tseem kho tau lub fluab ntawm lub cug kev sib xyaw ua ke thiab cov kev tsim kho hniav.
(2) Vim nws tus kheej cov qauv molecular, lub cellulose cov tshuaj ua kom yooj yim kom tsis yooj yim rau lub sijhawm ntev, ua kom huv cov tshuaj khib nyiab nrog cov dej zoo thiab ua haujlwm.
ntoo fiber ntau
Ntoo fiber yog ua los ntawm cov nroj tsuag raws li cov khoom siv raw thiab ua tiav los ntawm cov thev naus laus zis, thiab nws cov kev ua tau zoo sib txawv ntawm cov cellulose ether. Cov khoom tseem ceeb yog:
(1) Insoluble hauv dej thiab cov kuab tshuaj, thiab tseem tsis tau muaj nyob hauv cov kua qaub tsis muaj zog
(2) siv rau hauv cov tshuaj khib, nws yuav sib tshooj rau hauv lub xeev peb sab, nce lub thatic lub xeev, nce lub thatic lub cug, thiab txhim kho cov kev tsim kho kom zoo nkauj.
(3) Vim yog peb-txoj kev sib txawv ntawm cov ntoo muaj roj, nws muaj cov khoom siv ntawm "dej sib xyaw" thiab cov dej hauv cug tshuaj yuav tsis yooj yim nqus lossis tshem tawm. Tab sis nws tsis muaj dej siab tuav ntawm cellulose ether.
(4) Cov kab mob zoo ntawm cov ntoo muaj zog muaj cov kev ua haujlwm ntawm cov kab tshuaj khib nyiab ntawm lub cug, yog li txo cov kab nrib pleb tshwm sim los ntawm qhov tsis sib thooj.
(5) Ntoo fiber muaj peev xwm txo qhov kev ntxhov siab ntawm cov khib nyiab thiab cov tawv tawv thiab tawg ntawm cov tshuaj khib.
Lub sij hawm ncua: Mar-10-2023