Dab tsi yog cov cellulose muaj cai yog dab tsi thiab vim li cas lawv siv?

Cellulose Cov neeg muaj kev hais ua yog dej-soluble polymers ua los ntawm cellulose, cov qauv tseem ceeb ntawm cov nroj tsuag. Muaj ob peb hom cellulose muaj kev hais ua neeg muaj kev pab cuam, txhua tus muaj cov khoom tshwj xeeb uas ua rau lawv zoo rau ntau yam kev siv.

Kev kawm qib ntawm cellulose cov neeg ua kom muaj nyob rau hauv txhua yam ntawm cov kws tshuaj thiab cov tshuaj pleev ib ce tsim khoom thiab cov chaw tsim khoom. Ib qho ntxiv, lawv tau siv los ua cov zaub mov ntxiv thiab cov tuab tuab rau hauv cov xim tha xim thiab txheej.

Hom ntawm cov cellulose neeg muaj kev pab

Qhov peb ntawm feem ntau hom cellulose muaj cov neeg muaj kev hais ua ke yog hydroxyprropencellulose (HPMC), Methylhydroxyethylcelleculose (MHEC).

Vim tias nws cov versatility, HPMC yog qhov dav tshaj plaws siv hom cellulose ether. Nws muaj nyob rau hauv ntau qib nrog hnyav molecular hnyav, degrees hloov thiab viscosities. HPMC tuaj yeem siv rau hauv kev daws teeb meem acidic thiab alkaline, ua rau nws zoo tagnrho rau ntau cov ntawv thov.

MHEC tau zoo ib yam li HPMC tab sis muaj cov ntsiab lus hydroxypropyl. Piv rau HPMC, cov gelation kub ntawm MHEC feem ntau siab dua 80 ° C, nyob ntawm pab pawg cov ntsiab lus thiab hom kev tsim khoom. MHEC muaj feem ntau siv los ua cov tuab, binder, emulsion stabilizer lossis zaj duab xis yav tas los.

Cellulose Cov neeg muaj kev pab muaj ntau yam vim lawv cov khoom tshwj xeeb. Qee qhov kev siv ntawm cov neeg hais lus cellulose muaj xws li:

Thickeners: Cov neeg siv cellulose tuaj yeem siv ua cov roj harventers, cov nplaum, cov zaub mov roj, khoom noj khoom haus, tshuaj pleev zaub mov, thiab tshuaj pleev zaub mov.

Kev kho: Cov neeg muaj kev hais txog cellulose tuaj yeem siv los ua cov xyoob ntoo hauv cov ntsiav tshuaj lossis cov granules. Lawv txhim kho cov tshuaj txhuam hniav rau hmoov thaum tseem ua kom muaj cov khoom ntws zoo.

Emulsion Steeilizers: cov cellulose hais tau hais tias emulsions los ntawm calescence los ntawm coalescence lossis flocculation ntawm cov theem dispersed. Qhov no ua rau lawv zoo tagnrho rau kev siv hauv emulsion polymers xws li cov xim looj looj cov xim yas lossis cov nplaum.

Zaj duab xis Talters: Cov kws hais daws cellulose muaj peev xwm siv tau los ua cov yeeb yaj kiab lossis cov tsho tiv no rau ntawm thaj chaw. Lawv feem ntau siv nyob rau hauv kev kho cov ntawv thov xws li cov lus nplaum lossis cov nplaum ntoo. Films tsim los ntawm cellulose muaj cov neeg hais ua tau feem ntau pob tshab thiab yoog raws, nrog zoo noo noo.