Kapangidwe ka mankhwala a cellulose ether zotumphukira

Ma cellulose ethers amachokera ku cellulose, polysaccharide yachilengedwe yomwe imapezeka m'makoma a maselo. Mapangidwe a mankhwala a cellulose ethers amadziwika ndi kuyambitsa magulu osiyanasiyana a ether kupyolera mu kusintha kwa mankhwala kwa magulu a hydroxyl (-OH) omwe amapezeka mu molekyulu ya cellulose. Mitundu yodziwika bwino ya ma cellulose ethers ndi awa:

1. Hydroxypropyl Methylcellulose (HPMC):
   • Kapangidwe:
     • HPMC imapangidwa polowetsa magulu a hydroxyl a cellulose ndi magulu onse a hydroxypropyl (-OCH2CHOHCH3) ndi methyl (-OCH3).
     • Madigiri olowa m'malo (DS) amawonetsa kuchuluka kwamagulu olowa m'malo a hydroxyl pagawo la shuga mu tcheni cha cellulose.
2. Carboxymethyl cellulose(CMC):
   • Kapangidwe:
     • CMC imapangidwa poyambitsa magulu a carboxymethyl (-CH2COOH) m'magulu a hydroxyl a cellulose.
     • Magulu a carboxymethyl amapereka kusungunuka kwamadzi ndi mawonekedwe a anionic ku unyolo wa cellulose.
3. Ma cellulose a Hydroxyethyl (HEC):
   • Kapangidwe:
     • HEC imachokera m'malo mwa magulu a hydroxyl a cellulose ndi magulu a hydroxyethyl (-OCH2CH2OH).
     • Imawonetsa kusungunuka kwamadzi bwino komanso kukhuthala.
4. Methyl cellulose (MC):
   • Kapangidwe:
     • MC imapangidwa poyambitsa magulu a methyl (-OCH3) kumagulu a hydroxyl a cellulose.
     • Amagwiritsidwa ntchito kwambiri posungira madzi komanso kupanga mafilimu.
5. Ethyl Cellulose (EC):
   • Kapangidwe:
     • EC imapangidwa mwa kulowetsa magulu a hydroxyl a cellulose ndi magulu a ethyl (-OC2H5).
     • Amadziwika chifukwa chosasungunuka m'madzi ndipo nthawi zambiri amagwiritsidwa ntchito popanga zokutira ndi mafilimu.
6. Ma cellulose a Hydroxypropyl (HPC):
   • Kapangidwe:
     • HPC imachokera poyambitsa magulu a hydroxypropyl (-OCH2CHOHCH3) kumagulu a hydroxyl a cellulose.
     • Amagwiritsidwa ntchito ngati binder, filimu yakale, komanso viscosity modifier.

Kapangidwe kake kameneka kamasiyanasiyana pamtundu uliwonse wa cellulose ether kutengera mtundu ndi kuchuluka kwa kulowetsedwa komwe kumayambitsidwa panthawi yosintha mankhwala. Kuyambitsidwa kwa magulu a etherwa kumapereka katundu wina ku cellulose ether iliyonse, kuwapanga kukhala oyenera ntchito zosiyanasiyana zamakampani.