Chii chinotsiviwa cellulose ana manyombe?

Inotsiva cellulose ana ana boka revaisanganisira mishonga inokosha uye yakasindimara yakakoshesa inotorwa kubva ku cellulose, imwe yeanokudzwa kwazvo biopolymers pasi pano. Vatatu ava vanogadzirwa nemakemikari ekugadziridzwa kweiyo hydroxyl mapoka (-Oo) yeCellulose Backbone, zvichikonzera mune zvakasiyana zvigadzirwa nezvivakwa zvakasiyana uye zvinoshandiswa. Zvikumbiro zvinobva kune mishonga kubva pamishonga, chikafu, zvigadzirwa zvega zvega, zvekuvakisa, zvinyorwa, uye zvimwe.

Chimiro che cellulose:
Cellulose ndeye mutsara wezinesi polysaccharide yakaumbwa yekudzokorora zvikamu zveGlucose zvakabatanidzwa ne β -,4-glycosic zvisungo. Iyo yekudzokorora zvikamu zvine matatu hydroxyl mapoka paGlucose unit, iyo inoita cellulose yakanyanya hydrophilic uye inokanganiswa nemakemikari akasiyana emakemikari.

Synthesis yekutsiva cellulose ana manyombe:
Iyo Synthesis yeStutitute Cellerose anaTile inosanganisira iyo Sumo yemapoka akasiyana-siyana ari pamapoka eHydroxyl eCellulose Backbone. Nzira dzakajairwa dzekupa dzidziso idzi dzevana inosanganisira kuwedzerwa uye nekukudzwa.

Etholication maitiro inosanganisira kutsiva kwemapoka ehydroxyl neAlkyl kana Aryl mapoka kuti aumbe esther. Izvi zvinogona kuwanikwa nekuita neAlkyl mersides, alkyl sulfates kana alkyl etana pasi pemamiriro ezvinhu akakodzera. Inowanzo shandiswa malkylating vamiririri mune izvi zviitiko zvinosanganisira methyl chloride, ethyl chloride, uye Benzyl chloride.

Kuwedzera, kune rumwe rutivi, kunosanganisira kutsiva boka reHydroxyl neboka reAyl kuti riite chisungo cheEstter. Izvi zvinogona kuwanikwa nekuita ne acid chlubideide, anhydrides kana acids pamberi pevheni. Inowanzo shandiswa acylating vamiririri mune izvi zviitiko zvinosanganisira acetic anhydride, acetyl chloride, uye mafuta acids.

Mhando dzekutsiva cellulose ana manyombe.
MetHyl Cellulose (MC):

MetHylcellose inogadzirwa nekutsvafeneka kwemheremalose ine methyl chloride.
Inoshandiswa zvakanyanya sedhizimusi, stabilizer uye emulsifier mune dzakasiyana-siyana maindasitiri kusanganisira chikafu, mishonga yechechi uye zvigadzirwa zvega.
MC inoumba gel yakajeka kana iri hydrate uye inoratidza pseudoplastic maitiro, ichiita kuti zviite kuti zviite zvekushandisa zvinoda kutadza viscosity.
HydroxytHellylcellose (Hec):

HydroxyTHYL Cellulose iri yakashongedzwa nekutsva kwesero ye cellulose uye ethylene oxide.
Zvinowanzoshandiswa seanomhan'ara, kunamatira uye kushamwaridzana-kugadzira mumiriri mumakonzo, cosmetics, mushonga uye mamwe maindasitiri.
Hec inopa pseudoplastic maitiro kune mhinduro uye inopa yakanakisa mvura yekuchengetwa kwemvura.
Hydroxypruppropylcellose (HPC):

HydroxyprondPropyl Cellulose inogadzirwa neiyo itsera yeCellulose ine profilyone oxide.
Izvo zvinoshandiswa seanotenda, stabilizer uye binder mune yemishonga mafomu, kunyanya mukudzora kwehwendefa kwemapiritsi uye kudzorwa-kusunungura zvinodhaka zvinodhaka.
HPC ine thermogelling zvivakwa, kugadzira gels pakupisa kwakanyanya.
CarboxyMethylcellose (CMC):

CarboxyMethylcellose iri yakanyorwa ichitsvaga neCellulose uye Sodium monochloroacetate pasi peAlkaline mamiriro.
Iyo inoshandiswa zvakanyanya sedhizimusi, stabilizer uye emulsifier mune chikafu, mishonga uye maindasitiri ekushandisa.
CMC inorega viscosity uye shear-yakaonda maitiro kumhinduro uye mafomu akagadzikana coolidal kuparadzaniswa.
Ethyl hydroxyll cellulose (ehec):

Ethyl Hydroxyll Cellelose ndeye disublose Cellulose ether, iyo inogadzirwa nekutsva kwekutevedza cellulose neEtralene oxide uye ethyl chloride.
Izvo zvinoshandiswa seanorira, rheology modifier uye firimu raimbova mune dzakasiyana siyana dzekushandisa kusanganisira marara, zvinonamatira uye zvigadzirwa zvega zvega.
Ehec ine yepamusoro mvura solubility uye kuwirirana kupfuura yayo yakanyatso kutsiviwa vatevedzeri.
Hunhu hwekutsiva cellucose lecomlose.
Zvivakwa zvezvikamu zvakatsiva cellulose ana vana vers zvinoenderana nezvinhu zvakadai sedanho rekutsiva, manyorerwo ehuremu uye makemikari chimiro. Nekudaro, ivo vanowanzo kuratidzira hunhu hunotevera:

Hydrophicity: Yakadzorerwa Cellulose anaViHYDROPHIC nekuda kwekuvapo kweiyo hydroxyl mapoka mune yavo chimiro, iyo inovatendera kuti vabatane nemamolekyudhi emvura kuburikidza nehydrogen kusungwa.

Kukora uye gelling: Vazhinji vakatsiva cellulose Cellulose vaithwanda uye vaine zvivakwa, zvichikonzera kuumbwa kweViscous Solutions kana gels pane hydration. Viscosity uye gel simba rinoenderana nezvinhu zvakadai sePolymer Constination uye Solleurur uremu.

Film Foration: Vamwe vakatsiva cellulose ana vana vanokwanisa kugadzira mafirimu akajeka uye anochinjika kana akakandwa kubva pane mhinduro. Ichi chivakwa chine zvakanakira zvikumbiro zvakadai sejasi, zvinonamatira, uye zvinodzorwa-zvinosunungura zvinodhaka zvinodhaka.

Kugadzikana: Yakadzorerwa Cellulose anaiters anayo kazhinji inoratidzira kugadzikana kwakanaka pamusoro pehuremu hwakasiyana-siyana hwemamiriro ekunze. Ivo vanopokana kune microbial kusvibiswa uye enzymatic hydrolysis, vachiita kuti vakwanise kushandiswa mune dzakasiyana siyana mafambiro.

Rheological maitiro: Yakadzorerwa Cellulose ema Cellulose anaiters kazhinji inoratidza pseudoplastic kana sheare-kuonda maitiro, zvinoreva kuti viscoity yavo inoderera pasi pekushushikana. Ichi chivakwa chinodiwa mune zvekushandisa zvinoda kugadziriswa kwekugadzirisa kana kushandisa.

Zvikumbiro zvekutsiva cellulose etana:
Kutsiva cellulose ana ana vana anoshandiswa zvakanyanya mune akawanda maindasitiri nekuda kwezvinhu zvavo zvakawanda zvakawanda. Zvimwe zvakakosha zvikumbiro zvinosanganisira:

Indasitiri yeChikafu: Yakadzorerwa Cellulose anait Carbolselloselloselsellose (CMC) inoshandiswa sehana, stibilizers uye emlsifiers mune zvikafu zvakadai, zvipfeko uye zvigadzirwa zvemukaka. Ivo vanovandudza zvinyorwa, kugadzikana uye muromo uchiwedzera hupenyu hwesherufu.

Pharmaceutals: Yakadzorerwa Cellulose inoshandiswa zvakanyanya muzvimiro zveMishonga sezvikwangwani, zvinoparadza uye zvakadzorwa nevamiriri vemapiritsi, capules uye mamiriro epamusoro uye mafambiro epamusoro. Ivo vanovandudza kuendesa zvinodhaka, bioavaiality uye kutevedzera kwemurwere.

Zvigadzirwa zvega zvega: Yakatsiviwa Cellulose zvinongedzo zvakajairika muzvigadzirwa zvega zvega senge shampoos, lotions nemakiromita nekuda kwekuita kwavo uye kusimuka uye mafirimu-ekugadzira mafirimu. Vanosimudzira kugadzikana kwechigadzirwa, kuumbwa uye sensory hunhu.

Zvivakwa zvekuvaka: Mamwe ma cellulose ana ana anoshandiswa sekuzvidzwa mune zvekuvaka zvakadai seyakagadzirwa, muchoto uye gypsum zvigadzirwa kuti uvandudze kugona, kudzokorora kwemvura uye kudedera. Ivo vanovandudza mashandiro uye kusimba kwezvinhu izvi.

Zvekare: Inotsiva Cellulose anaitani mukudhinda machira ekudhinda uye kupedzisa maitiro ekupa viscosity kudzora, kuderedza uye kusimuka nekukurumidza. Ivo vanobatsira mune kunyange kuiswa kwemakadhi uye nhungamiro kune machira ezvinyorwa.

Mafuta neGiasi Indasitiri: Tsiva cellulose etiscotifiers uye fluid kurasikirwa kwemvura mukuchera mvura uye kuchengetedzeka kwemafuta uye gasi yekudhirowa.