Mbiri Yopanga ndi Kafukufuku wa Cellulose Ethers

Ma cellulose ethers ali ndi mbiri yakale yopanga ndi kufufuza, kuyambira chakumapeto kwa zaka za zana la 19. Ether yoyamba ya cellulose, ethyl cellulose, idapangidwa mu 1860s ndi wasayansi waku Britain Alexander Parkes. Kumayambiriro kwa zaka za m'ma 1900, ether ina ya cellulose, methyl cellulose, idapangidwa ndi wasayansi waku Germany Arthur Eichengrün.

M'zaka za m'ma 1900, kupanga ndi kufufuza kwa ma cellulose ethers kunakula kwambiri. M'zaka za m'ma 1920, carboxymethyl cellulose (CMC) idapangidwa ngati cellulose ether yosungunuka m'madzi. Izi zidatsatiridwa ndikukula kwa hydroxyethyl cellulose (HEC) m'ma 1930s, ndi hydroxypropyl methyl cellulose (HPMC) m'ma 1950s. Ma cellulose ethers amagwiritsidwa ntchito kwambiri masiku ano m'mafakitale osiyanasiyana, kuphatikizapo zakudya, mankhwala, zodzoladzola, ndi zomangamanga.

M’makampani azakudya, ma cellulose ethers amagwiritsidwa ntchito ngati thickeners, emulsifiers, and stabilizers. Amagwiritsidwa ntchito kwambiri pazinthu monga mavalidwe a saladi, ayisikilimu, ndi zinthu zophika. M'makampani opanga mankhwala, ma cellulose ethers amagwiritsidwa ntchito ngati zomangira, zosungunulira, ndi zokutira m'mapiritsi ndi makapisozi. M'makampani opanga zodzoladzola, amagwiritsidwa ntchito ngati thickening agents ndi emulsifiers mu zodzoladzola ndi mafuta odzola. M'makampani omanga, ma cellulose ethers amagwiritsidwa ntchito ngati osungira madzi komanso owonjezera ntchito mu simenti ndi matope.

Kafukufuku wa ma cellulose ethers akupitilirabe mpaka pano, ndikuwunika kwambiri kupanga ma ether atsopano komanso owongolera a cellulose okhala ndi zinthu zowonjezera komanso magwiridwe antchito. Kupita patsogolo kwaukadaulo kwapangitsa kuti pakhale njira zatsopano zopangira ma cellulose ethers, monga kusintha kwa enzymatic ndikusintha mankhwala pogwiritsa ntchito zosungunulira zobiriwira. Kafukufuku wopitilira ndi chitukuko cha ma cellulose ethers akuyembekezeka kutsogolera ku ntchito zatsopano ndi misika yazinthu zosunthika izi m'zaka zikubwerazi.