Mitundu yosiyanasiyana ya ethyl cellulose (EC)

Ethyl cellulose ndi polima wosunthika wokhala ndi ntchito zosiyanasiyana, kuyambira mankhwala mpaka zokutira mpaka zowonjezera zakudya. Makhalidwe ake amatha kusiyana kwambiri malinga ndi kalasi yake, yomwe imatsimikiziridwa ndi zinthu monga kulemera kwa maselo, mlingo wa m'malo, ndi kugawa kwa tinthu.

1.Mau oyamba a Ethyl Cellulose

Ethyl cellulose ndi chochokera ku cellulose, polima wachilengedwe wopezeka m'makoma a cellulose. Amapangidwa kudzera mu ethylation ya cellulose, momwe magulu a hydroxyl pa cellulose msana amasinthidwa ndi magulu a ethyl. Kusintha kumeneku kumapereka zinthu zapadera kwa ethyl cellulose, kuphatikiza luso lopanga filimu, kukana mankhwala, komanso kukhazikika kwamafuta.

2.Otsika mpaka Pakatikati Mwakulemera kwa Maselo:

Maphunzirowa amakhala ndi zolemetsa zamamolekyulu kuyambira 30,000 mpaka 100,000 g/mol.
Amadziwika ndi ma viscosity awo otsika komanso kusungunuka mwachangu poyerekeza ndi magiredi apamwamba a maselo.
Mapulogalamu:
Zopaka: Amagwiritsidwa ntchito ngati zomangira zokutira mapiritsi, mapiritsi, ndi ma granules muzamankhwala.
Kutulutsidwa Kolamulidwa: Olembedwa ntchito m'machitidwe operekera mankhwala omwe amatulutsidwa mwachangu pomwe akufunika kuthetsedwa mwachangu.
Inki: Amagwiritsidwa ntchito ngati zokhuthala ndi kupanga mafilimu posindikiza inki.

3.Makalasi Olemera a Molecular:

Makalasi awa ali ndi zolemetsa zamamolekyulu zomwe zimapitilira 100,000 g / mol.
Amawonetsa kukhuthala kwamphamvu komanso kusungunuka kwapang'onopang'ono, kuwapangitsa kukhala oyenera kumasulidwa kosalekeza.
Mapulogalamu:
Kutulutsidwa Kokhazikika: Ndikoyenera kupanga mafomu a mlingo wokhazikika m'zamankhwala, kutulutsa mankhwala kwanthawi yayitali.
Encapsulation: Amagwiritsidwa ntchito mu matekinoloje a encapsulation kuti azitha kutulutsa zokometsera, zonunkhira, ndi zosakaniza zogwira ntchito.
Mafilimu Olepheretsa: Amagwiritsidwa ntchito ngati zokutira zotchinga m'mapaketi azakudya kuti apititse patsogolo moyo wa alumali komanso kupewa kulowetsedwa kwa chinyezi.

4.Degree of Substitution (DS) Zosiyanasiyana:

Ethyl cellulose imatha kukhala ndi magawo osiyanasiyana olowa m'malo, kuwonetsa kuchuluka kwamagulu a ethyl pagawo la anhydroglucose mu unyolo wa cellulose.
Magiredi okhala ndi DS apamwamba amakhala ndi magulu a ethyl ochulukirapo pa cellulose unit, zomwe zimapangitsa kuti hydrophobicity ichuluke komanso kuchepa kwa kusungunuka kwamadzi.
Mapulogalamu:
Kukaniza Madzi: Makalasi apamwamba a DS amagwiritsidwa ntchito popaka ndi mafilimu pomwe kukana madzi ndikofunikira, monga zokutira zotchingira chinyezi zamapiritsi ndi makapisozi.
Solvent Resistance: Yoyenera kugwiritsa ntchito zomwe zimafuna kukana zosungunulira organic, monga inki ndi zokutira zosindikiza ndi kuyika.

5. Mitundu Yambiri Yambiri:

Ethyl cellulose imapezeka m'magawo osiyanasiyana a tinthu tating'onoting'ono, kuyambira tinthu tating'onoting'ono tomwe timatulutsa timadzi tomwe tomwe timapanga tomwe timapanga tomwe timapanga nanometer.
Kukula kwa tinthu tating'onoting'ono kumapereka maubwino monga kusinthika kwapang'onopang'ono, zokutira zosalala, komanso kugwirizanitsa ndi zosakaniza zina.

6.Mapulogalamu:

Nanoencapsulation: Nanoscale ethyl cellulose particles amagwiritsidwa ntchito mu nanomedicine popereka mankhwala, kuthandizira kuperekera kwachindunji komanso kupititsa patsogolo chithandizo chamankhwala.
Zopaka za Nano: Mafuta abwino a ethyl cellulose amagwiritsidwa ntchito mu zokutira zapadera, monga zokutira zotchinga pamagetsi osinthika ndi zida zamankhwala.

Ethyl cellulose ndi polima wosunthika wokhala ndi ntchito zosiyanasiyana m'mafakitale onse, ndipo magiredi ake osiyanasiyana amapereka mawonekedwe ogwirizana kuti akwaniritse zofunikira pakupangidwira. Kuchokera pamagiredi otsika mpaka okwera kwambiri a mamolekyu kupita kumitundu yosiyanasiyana kutengera kuchuluka kwa kulowetsa m'malo ndi kukula kwa tinthu tating'onoting'ono, cellulose ya ethyl imapereka njira zingapo kwa opanga omwe akufuna njira zothetsera mankhwala, zokutira, zotsekera, ndi zina. Kumvetsetsa mikhalidwe ya giredi iliyonse ndikofunikira kuti mukwaniritse bwino magwiridwe antchito komanso kuti mupeze zotsatira zomwe mukufuna pamapulogalamu osiyanasiyana.