Cellulose esters ua li cas?

Cellulose esters yog ib chav kawm ntawm cov ntaub ntawv uas tau tsim thaum cellulose reacted nrog ib tug acid los yog cawv. Cov khoom tsim tawm yog cov khoom siv uas tiv taus dej, cua sov, thiab tshuaj lom neeg. Cellulose esters yog siv nyob rau hauv ntau yam kev siv, xws li txheej, nplaum, thiab yas.

Cellulose esters feem ntau yog ua los ntawm reacting cellulose nrog cov kua qaub los yog cawv. Cov tshuaj tiv thaiv feem ntau yog ua nyob rau hauv lub xub ntiag ntawm ib tug catalyst, xws li sulfuric acid, thiab nyob rau hauv kub kub. Cov tshuaj tiv thaiv tsim ntau yam sib txawv esters, nyob ntawm seb hom kua qaub lossis cawv siv.

Feem ntau cov cellulose esters yog cellulose acetate, cellulose propionate, thiab cellulose butyrate. Cellulose acetate yog tsim thaum cellulose reacted nrog acetic acid. Cellulose propionate yog tsim thaum cellulose reacted nrog propionic acid. Cellulose butyrate yog tsim thaum cellulose reacted nrog butyric acid.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm cellulose nrog cawv. Cov cawv ntau tshaj plaws siv rau lub hom phiaj no yog methanol, ethanol, thiab isopropanol. Cov tshuaj tiv thaiv tsim ntau yam sib txawv esters, nyob ntawm seb hom cawv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog tus neeg sawv cev esterifying, xws li glycerol lossis ethylene glycol. Cov tshuaj tiv thaiv no ua rau ntau yam sib txawv esters, nyob ntawm seb hom esterifying tus neeg siv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog cov tshuaj halogenating, xws li chlorine lossis bromine. Cov tshuaj tiv thaiv no tsim ntau yam sib txawv esters, nyob ntawm seb hom halogenating tus neeg siv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog oxidizing tus neeg sawv cev, xws li hydrogen peroxide. Cov tshuaj tiv thaiv no ua rau ntau yam sib txawv esters, nyob ntawm seb hom oxidizing tus neeg siv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog cov tshuaj aminating, xws li ammonia lossis amine. Cov tshuaj tiv thaiv no ua rau ntau yam sib txawv esters, nyob ntawm seb hom aminating tus neeg siv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog tus neeg sawv cev txo qis, xws li sodium borohydride lossis lithium aluminium hydride. Cov tshuaj tiv thaiv no tsim ntau yam sib txawv ntawm cov esters, nyob ntawm seb hom kev txo tus neeg siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm cellulose nrog tus neeg sawv cev sib txuas, xws li dialdehyde lossis diisocyanate. Cov tshuaj tiv thaiv no ua rau ntau yam sib txawv ntawm cov esters, nyob ntawm seb hom kev sib txuas ntawm tus neeg sawv cev siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog tus neeg sawv cev polymerizing, xws li vinyl monomer lossis polyester. Cov tshuaj tiv thaiv no tsim ntau yam sib txawv esters, nyob ntawm seb hom polymerizing tus neeg siv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog cov tshuaj tua kab mob, xws li epoxy lossis polyurethane. Cov tshuaj tiv thaiv no ua rau ntau yam sib txawv ntawm cov esters, nyob ntawm seb hom curing agent siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog cov khoom siv yas, xws li phthalate lossis polyethylene glycol. Cov tshuaj tiv thaiv no tsim ntau yam sib txawv ntawm cov esters, nyob ntawm seb hom plasticizing tus neeg siv siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm cellulose nrog cov surfactant, xws li cov nonionic lossis anionic surfactant. Cov tshuaj tiv thaiv no tsim ntau yam sib txawv esters, nyob ntawm seb hom surfactant siv.

Cellulose esters kuj tuaj yeem tsim los ntawm kev ua haujlwm ntawm cellulose nrog cov nplaim hluav taws, xws li halogenated hydrocarbon lossis phosphorous compound. Cov tshuaj tiv thaiv no ua rau ntau yam sib txawv ntawm cov esters, nyob ntawm seb hom nplaim hluav taws xob siv.

Nyob rau hauv xaus, cellulose esters yog tsim los ntawm reacting cellulose nrog ib tug acid, ib tug cawv, ib tug esterifying tus neeg saib xyuas, ib tug halogenating tus neeg saib xyuas, ib tug oxidizing tus neeg sawv cev, ib tug aminating tus neeg sawv cev, ib tug txo tus neeg sawv cev, ib tug cross-linking tus neeg sawv cev, ib tug polymerizing tus neeg sawv cev, ib tug curing agent. , cov khoom siv plasticizing, surfactant, lossis nplaim hluav taws. Hom ester tsim nyob ntawm hom reactant siv. Cellulose esters yog siv nyob rau hauv ntau yam kev siv, xws li txheej, nplaum, thiab yas.