Cov neeg muaj kev hais txog cellulose: kev tsim khoom thiab kev siv

ZUS TAU TEJ COV Cellulose Muaj Cov Neeg Muaj:

Kev tsim khoom ntawmNeeg muaj neeg ua haujlwmKoom nrog kev kho lub ntuj polymer cellulose los ntawm tshuaj lom neeg cov tshuaj tiv thaiv. Feem ntau cov ntaub ntawv ntawm lub xov tooj ntawm cov xov tooj ntawm cov xov tooj ntawm cov xov tooj me hydroxyylcellulose (HECC), cov celluleethethyl cellulose (MC), thiab cov cellulose cellulose (EC). Ntawm no yog ib qho dav dav ntawm cov txheej txheem tsim khoom:

1. Cellulose sourcing:
   • Cov txheej txheem pib nrog sourcing cellulose, feem ntau yog los ntawm ntoo pulp lossis paj rwb. Cov hom ntawm cellulose tuaj yeem cuam tshuam cov khoom ntawm lub cellule cellulose khoom ether.
2. Pulping:
   • Lub cellulose yog raug rau pulping cov txheej txheem kom tawg cov fibers rau hauv ib daim ntawv tswj xyuas ntxiv.
3. Purification:
   • Lub cellulose yog huv kom tshem tawm impurities thiab tsau, uas ua rau muaj cov khoom siv cellulose.
4. Ethetification tiv thaiv:
   • Lub cellulose cellulose undergulose undergulose ethermalation, uas yog cov pab pawg ethrophethyl, hydroxethyl, hydroxethyl, ethyl pawg ntawm lub cellulose saw.
   • Reagents xws li Ethylene Oxide, Epylene Oxide, sodium chloroacetate, lossis methyl chloride muaj feem ntau siv nyob rau hauv cov kev tiv thaiv no.
5. Tswj ntawm cov tshuaj tiv thaiv:
   • Kev tiv thaiv kab mob yog ua tib zoo saib xyuas qhov ntsuas kub, thiab Ph kom ua tiav cov qib xav tau (DS) thiab zam kev phiv.
6. Neutralization Thiab Ntxuav:
   • Tom qab lub Ehereification cov tshuaj tiv thaiv, cov khoom lag luam yog feem ntau cia li tshem tawm ntau dhau kev xav tau lossis cov khoom lag luam.
   • Cov cellulose hloov tau muab ntxuav kom tshem tawm cov tshuaj lom neeg thiab tsis sib haum.
7. Drying:
   • Lub cellulose cellulose ether yog qhuav kom tau txais cov khoom kawg hauv cov hmoov lossis daim ntawv puab.
8. Tswjhwm Zoo:
   • Ntau hom kev ntsuas tshuaj, xws li kev sib nqus no Nuclear Cais (NMR)
   • Cov degree ntawm kev hloov pauv (DS) yog qhov ntsuas qhov tseem ceeb ntawm kev tsim khoom.
9. Tsim thiab Ntim:
   • Cov cellulose muaj kev hais ua kom raug tom qab tsim los rau hauv cov qib sib txawv kom tau raws li cov kev cai tshwj xeeb ntawm ntau yam kev siv.
   • Cov khoom kawg yog ntim rau kev faib tawm.

Cov ntawv thov ntawm Cellulose muaj cov neeg muaj cai:

Cellulose Cov neeg ua kom muaj kev tsis txaus siab pom muaj ntau yam kev thov hla ntau yam kev lag luam vim lawv cov khoom tshwj xeeb. Nov yog qee qhov kev siv:

1. Kev Lag Luam Kev Tsim Kho Kev Tsim Kho:
   • HPMC: Siv hauv tshuaj khib thiab cov ntawv thov kev sib xyaw ua ke rau cov dej tuav cia, ua haujlwm, thiab txhim kho adchesion.
   • HEC: Ua haujlwm hauv cov nplais nplaum, cov sib txuas ua ke, thiab cov ua ke rau nws cov khoom siv ua tuab thiab dej khaws cia.
2. Kws Tshuaj:
   • HPMC thiab MC: Siv hauv cov kws tshuaj tsim kho raws li cov neeg sawv cev, thiab cov neeg sawv cev hauv cov ntsiav tshuaj.
   • EC: Siv hauv cov txheej txheej ntawm cov tshuaj rau cov ntsiav tshuaj.
3. Kev Lag Luam Khoom Noj:
   • CMC: Ua raws li cov tuab, stabilizer, thiab emulsifier hauv ntau yam khoom noj.
   • MC: Siv hauv cov ntawv thov zaub mov rau nws cov khoom siv ua kom tuab thiab ci ntsa iab.
4. Xim thiab pleev xim:
   • HEC thiab HPMC: Muab viscosity tswj thiab dej khaws cia hauv cov xim tsim.
   • EC: Siv rau hauv cov txheej txheem rau nws cov yeeb yaj kiab ua yeeb yam.
5. Cov khoom lag luam ntawm tus kheej:
   • HEC thiab HPMC: pom nyob rau hauv cov tshuaj zawv plaub hau, muaj cov tshuaj tivt, thiab lwm yam khoom siv rau thickening thiab ruaj khov.
   • CMC: Siv cov tshuaj txhuam hniav rau nws cov khoom siv thickenes.
6. Textiles:
   • CMC: Siv ua tus sawv cev Sizing hauv cov ntawv thov textile rau nws zaj duab xis-ua cov yeeb yaj kiab thiab cov khoom nplaum.
7. Roj thiab roj Kev Lag Luam:
   • CMC: Ua haujlwm hauv cov kua dej drilling rau nws cov khoom siv txo cov kua.
8. Kev Lag Luam Ntawv:
   • CMC: Siv ua ib daim ntawv txheej thiab cov neeg sawv cev rau nws cov yeeb yaj kiab thiab dej khaws cia.
9. Cov nplaum:
   • CMC: Siv hauv cov nplaum rau nws cov cua sov thiab dej khaws cia.

Cov ntawv thov no qhia txog cov versatility ntawm cellulose muaj kev hais ua neeg muaj kev pab cuam thiab kev txhim kho ntau yam khoom lag luam thoob plaws kev lag luam sib txawv. Kev xaiv ntawm cellulose cellulose cellulose nyob ntawm qhov kev xav tau ntawm daim ntawv thov thiab cov khoom xav tau ntawm cov khoom kawg.