Cov neeg muaj kev pab tsawg leeg: txhais tau, kev tsim khoom, thiab daim ntawv thov

Cov lus txhais ntawm Cellulose neeg muaj cai:

Cov neeg hais txog cellulose yog tsev neeg ntawm cov dej-soluble polymers tau los ntawm cellulose, lub ntuj polysaccharide pom nyob hauv cov phab ntsa ntawm tes ntawm cov nroj tsuag. Los ntawm kev hloov kho tshuaj lom neeg, cov pab pawg ether kom tau qhia rau cov kab mob cellule, ua rau cov dej solubility xws li muaj peev xwm ua ywg dej, thiab ua yeeb yaj kiab ua yeeb yaj kiab. Cov feem ntau hom ntawm cov kws ua kom muaj kev cuam tshuam cellulose muaj xws liHydroxyPropyyl Methylcellulose(HPMC), carboxymethyl cellulose (cmc), hydroxyethyl cellulose (HEC), Methyl Cellulose (MC), thiab Ethylorm (EC).

Siv thiab ua cov cellulos neeg muaj:

Kev tsim kho cov txheej txheem ntawm cov cellulose muaj kev cuam tshuam feem ntau cuam tshuam nrog cov kauj ruam hauv qab no:

1. Cellulose qhov chaw xaiv:
   • Cellulose tuaj yeem muaj los ntawm ntoo pulp, cov duab paj rwb, lossis lwm cov khoom siv cog.
2. Pulping:
   • Cov cellulose cellulose undergulose undergoes pulping, rhuav cov fibers rau hauv ib daim ntawv tswj xyuas ntxiv.
3. Kev ua kom muaj ntawm cellulose:
   • Tus pulpped cellulose tau qhib los ntawm o o hauv qhov kev daws teeb meem alkaline. Cov kauj ruam no ua rau lub cellulose ntau yam rov qab muaj ntau yam thaum lub sij hawm etherification.
4. Ethetification tiv thaiv:
   • Etaws pawg (piv txwv li, methyl, hydroxyprropyl, carboxymethyl) tau qhia rau lub cellulose los ntawm kev siv tshuaj lom neeg.
   • Tib yam li cov neeg sawv cev rau Alkylene Oxides, Alkylal Halides, lossis lwmyam reagents, nyob ntawm qhov xav tau cellulose ether.
5. Neutralization Thiab Ntxuav:
   • Lub nruab nrab cellulose yog neutralized los tshem tawm ntau dhau kev nqus thiab tom qab ntawd ntxuav kom tshem tawm impurities.
6. Drying:
   • Kev ua kom huv thiab nruab nrab cellulose tau qhuav, ua rau cov khoom kawg ntawm tes ether cov khoom.
7. Tswjhwm Zoo:
   • Ntau hom kev qhia paub, xws li nmr spectroscopy thiab ftir spectroscopy, tau ua haujlwm rau kev tswj hwm zoo kom ua rau cov degrees uas xav tau thiab huv.

Daim ntawv thov ntawm Cellulose muaj cov neeg muaj cai:

1. Kev Lag Luam Kev Tsim Kho Kev Tsim Kho:
   • Cov nplaum nplaum, cov neeg nplua nuj, muab: Muab cov dej tuav cia, txhim kho cov haujlwm ua haujlwm, thiab txhim kho adhesion.
   • Kev Ntsuas Tus Kheej Txheej Txheem: Txhim Kho Cov Khoom Plig Flow thiab ruaj khov.
2. Kws Tshuaj:
   • Ntsiav tshuaj qauv: Ua raws li Binders, DisintGrrants, thiab zaj duab xis-ua cov neeg sawv cev.
3. Kev Lag Luam Khoom Noj:
   • Thickeners thiab stabilizers: siv hauv ntau yam zaub mov los muab viscosity thiab kev ruaj khov.
4. Cov xim pleev xim thiab pleev xim:
   • Cov xim pleev xim rau dej: ua raws li cov tuab tuab thiab ua kom muaj stabilizers.
   • Kws Tshuaj Txheej: Siv rau kev tswj hwm-tso tawm.
5. Cov khoom lag luam ntawm tus kheej:
   • Tshuaj zawv plaub hau, muaj cov tshuaj pleev kom ua raws li cov tuab thiab ua kom muaj stabilizers.
6. Cov nplaum:
   • Ntau cov nplaum: Txhim kho viscosity, adhesion, thiab rheological cov khoom.
7. Roj thiab roj Kev Lag Luam:
   • Drilling kua: muab kev tswj kom muaj kev tswj kom muaj kev txo qis thiab kev txo qis.
8. Kev Lag Luam Ntawv:
   • Daim ntawv txheej thiab sizing: txhim kho daim ntawv muaj zog, txheej Adhesion, thiab sizing.
9. Textiles:
   • Textile sizing: txhim kho adhesion thiab zaj duab xis tsim ntawm textiles.
10. Cov khoom lag luam ntawm tus kheej:
    • Cov tshuaj pleev ib ce, tshuaj ntxuav tes: ua raws li cov tuab tuab thiab ua kom muaj stabilizers.

Cellulose Cov neeg ua kom muaj kev cuam tshuam nrog lawv cov khoom siv dav dav, pab txhawb rau kev ua yeeb yam ntawm cov khoom sib txawv. Kev xaiv ntawm cellulose ntawm cellulose nyob ntawm cov ntawv thov tshwj xeeb thiab cov khoom siv tau.