Kini awọn orisirisi ti Cellulose ether?

Awọn ethers cellulose jẹ ẹgbẹ oniruuru ti awọn polima ti o wa lati cellulose, polysaccharide adayeba ti a ri ninu awọn eweko. Wọn ti wa ni lilo pupọ ni awọn ile-iṣẹ lọpọlọpọ, pẹlu ikole, awọn oogun, ounjẹ, ohun ikunra, ati itọju ti ara ẹni, nitori awọn ohun-ini alailẹgbẹ wọn ati ilopọ. Eyi ni diẹ ninu awọn oriṣi ti o wọpọ julọ ti ether cellulose:

1. Methyl Cellulose (MC):
   • Methyl cellulose jẹ iṣelọpọ nipasẹ atọju cellulose pẹlu methyl kiloraidi lati ṣafihan awọn ẹgbẹ methyl sori ẹhin cellulose.
   • O ti wa ni tiotuka ninu omi tutu ati ki o fọọmu ko o, viscous solusan.
   • A lo MC bi ohun elo ti o nipọn, binder, ati imuduro ni ọpọlọpọ awọn ohun elo, pẹlu awọn ohun elo ikole (fun apẹẹrẹ, amọ-simenti, awọn pilasita orisun gypsum), awọn ọja ounjẹ, awọn oogun, ati awọn ohun itọju ti ara ẹni.
2. Hydroxyethyl Cellulose (HEC):
   • Hydroxyethyl cellulose ti wa ni sise nipasẹ didaṣe cellulose pẹlu ethylene oxide lati ṣafihan awọn ẹgbẹ hydroxyethyl sori ẹhin cellulose.
   • O jẹ tiotuka ni omi tutu ati awọn fọọmu ko o, awọn ojutu viscous pẹlu awọn ohun-ini idaduro omi to dara julọ.
   • HEC jẹ lilo nipọn, oluyipada rheology, ati oluranlowo fiimu ni awọn kikun, awọn adhesives, awọn ọja itọju ti ara ẹni, ati awọn oogun.
3. Hydroxypropyl Methyl Cellulose (HPMC):
   • Hydroxypropyl methyl cellulose jẹ iṣelọpọ nipasẹ iṣafihan hydroxypropyl ati awọn ẹgbẹ methyl sori ẹhin cellulose.
   • O ṣe afihan awọn ohun-ini ti o jọra si mejeeji cellulose methyl ati hydroxyethyl cellulose, pẹlu solubility omi, agbara ṣiṣẹda fiimu, ati idaduro omi.
   • HPMC jẹ lilo pupọ ni awọn ohun elo ikole (fun apẹẹrẹ, awọn adhesives tile, awọn atunṣe ti o da lori simenti, awọn agbo ogun ti ara ẹni), ati ni awọn oogun, awọn ọja ounjẹ, ati awọn ohun itọju ti ara ẹni.
4. Carboxymethyl Cellulose (CMC):
   • Carboxymethyl cellulose jẹ yo lati cellulose nipa atọju rẹ pẹlu soda hydroxide ati monochloroacetic acid lati se agbekale carboxymethyl awọn ẹgbẹ.
   • O jẹ tiotuka ninu omi ati awọn fọọmu ti o han gbangba, awọn solusan viscous pẹlu iwuwo ti o dara julọ, imuduro, ati awọn ohun-ini idaduro omi.
   • CMC ni a lo nigbagbogbo bi apọn, binder, ati iyipada rheology ninu awọn ọja ounjẹ, awọn oogun, awọn aṣọ, iwe, ati diẹ ninu awọn ohun elo ikole.
5. Ethyl Cellulose (EC):
   • Ethyl cellulose jẹ iṣelọpọ nipasẹ didaṣe cellulose pẹlu ethyl kiloraidi lati ṣafihan awọn ẹgbẹ ethyl sori ẹhin cellulose.
   • Ko ṣee ṣe ninu omi ṣugbọn tiotuka ninu awọn nkan ti o nfo Organic gẹgẹbi ethanol ati chloroform.
   • EC ni a lo nigbagbogbo bi aṣoju ti n ṣẹda fiimu, asopọ, ati ohun elo ti a bo ni awọn oogun, awọn ọja ounjẹ, awọn ohun ikunra, ati awọn ohun elo ile-iṣẹ.

Iwọnyi jẹ diẹ ninu awọn oriṣiriṣi ti a lo julọ ti ether cellulose, ọkọọkan nfunni awọn ohun-ini alailẹgbẹ ati awọn anfani fun awọn ohun elo oriṣiriṣi. Awọn ethers cellulose pataki miiran le tun wa, ti a ṣe si awọn ibeere kan pato ni awọn ile-iṣẹ pupọ.