Kodi mitundu yodziwika ya cellulose ether ndi iti? Kodi ndi mikhalidwe yotani?

Cellulose Eders ndi gulu losiyanasiyana la ma polima omwe achokera ku cellulose, polysaczaczacal opezeka muzomera. Amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, kuphatikizapo kapangidwe ka zomangamanga, mankhwala opangira mankhwala, chakudya, komanso chisamaliro chaumwini, chifukwa cha zinthu zawo zapadera komanso zothandiza. Nawa mitundu yofananira ya cellulose ether ndi mawonekedwe awo:

1. Methyl cellulose (MC):
   • Makhalidwe:
     • Methyl cellulose ndi polymer yosungunuka yamadzi yochokera ku cellulose pochiza ndi methyl chloride.
     • Nthawi zambiri imakhala yopanda fungo, yopanda pake, komanso yopanda poizoni, ndikupanga kukhala yoyenera kugwiritsa ntchito mapulogalamu osiyanasiyana.
     • MC imawonetsa bwino madzi osunga madzi, ndikupangitsa kuti ikhale yowonjezera ya mativa a sile, ma gypsum-a gypsum, ndi tiles.
     • Imakhala bwino ntchito, kutsatira, ndi kutseguka nthawi yomanga, kulola kugwiritsa ntchito mosavuta.
     • Methyl cellulose nthawi zambiri imagwiritsidwa ntchito ngati wothandizira kukula, kukhazikika, ndi emulsifiers mu zakudya, mankhwala opangira mankhwala, komanso zodzoladzola.
2. Hydroxyethyl cellulose (hec):
   • Makhalidwe:
     • Hydroxyethyl cellulose imapangidwa ndi cellose cellulose ndi ethylene oxide kuti ayambitse magulu a hydroxyathyl.
     • Imasungunuka m'madzi ozizira ndikupanga zomveka, zothetsera ma viscous ndi zida zabwino zamadzi.
     • Hec imagwiritsidwa ntchito ngati thicker, rhelogy osintha, ndi othandizira mafilimu mu ntchito zosiyanasiyana, kuphatikizapo zojambula, zomata, zopangidwa ndi anthu, komanso mankhwalawa.
     • M'malo opangira, hec imathandizanso kugwira ntchito, kukana kukana, komanso kusanjana, ndikupanga kukhala koyenera kugwiritsa ntchito mawonekedwe a gypsum.
     • Hec imaperekanso mayendedwe a pseudoplastic, kutanthauza kuti ma viscy amachepetsa pansi pa kupsinjika kukameta ubweya, kuthandizira kugwiritsa ntchito mosavuta komanso kufalitsa.
3. Hydroxypypyl methyl cellulose (hpmc):
   • Makhalidwe:
     • Hydroxypropyl Medielose ndi ma cellulose ether opangidwa ndikuyambitsa hydroxypropyl ndi methyl magulu am'madzi am'madzi.
     • Zimawonetsa katundu wofanana ndi methyl cellulose ndi hydroxethyl cellulose, kuphatikizapo kusungunuka madzi, kuthekera kwamafilimu, komanso kusungidwa kwamafilimu.
     • HPMC imagwiritsidwa ntchito kwambiri m'magulu omanga monga tiles, zomata zamisamba, komanso zodzikongoletsera zodzipangitsa kuti zithandizire, kutsatira, komanso kusasinthika.
     • Limapereka chuma chabwino kwambiri, kumanga, ndi kuthira mafuta m'magulu am'madzi ndipo imagwirizana ndi zowonjezera zina zomwe zimagwiritsidwa ntchito pomanga.
     • HPMC imagwiritsidwanso ntchito pa mankhwala opangira mankhwala, zakudya, komanso zinthu zosamalira pandekha ngati khola, kuyimilira, ndi kusinthika kosasinthika.
4. Carboxymethyl cellulose (cmc):
   • Makhalidwe:
     • Carboxymethyl cellulose ndi ether yochokera ku cellulose yochokera ku cellulose pochiza ndi sodium hydroxide acid kuti iyambitse magulu a carboxymethl.
     • Imasungunuka m'madzi ndikupanga zomveka, zothetsera ma viscous muli bwino kwambiri, zokhazikika, komanso madzi osasunga madzi.
     • CMC imagwiritsidwa ntchito ngati Thicker, Bander, ndi Rheology okhazikika m'mafakitale osiyanasiyana, kuphatikizapo chakudya, mankhwala opangira mankhwala, zolemba, ndi pepala.
     • M'malo opangira, masentimita nthawi zina amagwiritsidwa ntchito ngati matope a simenti ndi madokotala, ngakhale ndizofala kwambiri kuposa cellulose ina chifukwa cha kuchuluka kwake kochepa komanso kusiyanasiyana kwa ma tepi.
     • CMC imagwiritsidwanso ntchito mu mankhwala opanga mankhwala ngati kuyimilira, piritsi la piritsi, ndi matrix olamulidwa.

Awa ndi ena mwa mitundu yodziwika bwino ya ethel ether, iliyonse yomwe imapereka katundu wapadera ndi mapindu osiyanasiyana pazosiyanasiyana. Mukamasankha ethel ether for pogwiritsira ntchito pulogalamu inayake, zinthu monga kususuka, mafakisoni, kuyerekezera ndi zina zowonjezera, ndipo mikhalidwe yofunikira iyenera kuganiziridwa.