Taariikhda Wax soo saarka iyo Cilmi-baarista Cellulose Ethers

Ether-yada Cellulose waxay leeyihiin taariikh dheer oo wax soo saar iyo cilmi baaris ah, oo soo bilaabatay dabayaaqadii qarnigii 19aad. Ether-kii ugu horreeyay ee cellulose, ethyl cellulose, waxaa sameeyay 1860-meeyadii farmashiyihii Ingiriiska Alexander Parkes. Horraantii 1900-aadkii, ether kale oo cellulose ah, methyl cellulose, waxaa sameeyay farmashiistaha Jarmalka Arthur Eichengrün.

Intii lagu jiray qarnigii 20-aad, wax soo saarka iyo cilmi-baarista ether-ka cellulose ayaa si weyn u ballaariyay. Sannadihii 1920-aadkii, karboxymethyl cellulose (CMC) waxaa loo sameeyay sidii eter cellulose-biyood-milmi leh. Tan waxaa ku xigtay horumarinta hydroxyethyl cellulose (HEC) ee 1930-meeyadii, iyo hydroxypropyl methyl cellulose (HPMC) ee 1950-yadii. Ether-yadan cellulose-ka ah ayaa maanta si weyn looga isticmaalaa warshado kala duwan, oo ay ku jiraan cuntada, dawooyinka, waxyaalaha la isku qurxiyo, iyo dhismaha.

Warshadaha cuntada, ether-ka cellulose waxa loo isticmaalaa dhumucyada, emulsifiers, iyo stabilizers. Caadi ahaan waxaa loo isticmaalaa alaabada sida dhaymada saladhka, jalaatada, iyo alaabta la dubay. Warshadaha dawooyinka, ether-ka cellulose waxa loo isticmaalaa sida xidhayaasha, kala-baxa, iyo wakiilada dahaarka ee kiniiniyada iyo kaabsalka. Warshadaha la isku qurxiyo, waxa loo isticmaalaa sida walxaha dhumucyada iyo emulsifiers ee kiriimyada iyo labeennada. Warshadaha dhismaha, ether-ka cellulose-ka waxa loo isticmaalaa sida wakiilada biyaha-haynta iyo kor uqaadayaasha shaqada ee sibidhka iyo hoobiye.

Cilmi-baarista ether-ka cellulose-ka ayaa sii socota ilaa maantadan la joogo, iyada oo diiradda la saarayo horumarinta ethers cellulose cusub oo la hagaajiyay oo leh hanti la xoojiyey iyo shaqeyn. Horumarka tignoolajiyada ayaa horseeday horumarinta habab cusub oo lagu soo saaro ethers cellulose, sida wax ka beddelka enzymatic iyo wax ka beddelka kiimikaad iyadoo la adeegsanayo dareerayaasha cagaaran. Cilmi-baarista joogtada ah iyo horumarinta ethers cellulose ayaa la filayaa inay u horseeddo codsiyo cusub iyo suuqyo qalabkan la taaban karo sanadaha soo socda.