Waa maxay faraqa u dhexeeya ether cellulose iyo cellulose?

Cellulose iyo ether cellulose labaduba waxay ka soo jeedaan cellulose, polymer dabiici ah oo laga helo gidaarada unugyada dhirta. Si kastaba ha ahaatee, waxay ku kala duwan yihiin qaab dhismeedka kiimikada iyo sifooyinka:

1. Qaab dhismeedka Kiimikada: Cellulose waa polysaccharide toosan oo ka kooban unugyo gulukoos oo soo noqnoqda oo isku xidhan β(1→4) glycosidic bonds. Waa silsilad toosan oo polymer ah oo leh heer sare oo crystallinity ah.
2. Hydrophilicity: Cellulose waa biyo dabiici ah oo dabiici ah, taasoo la micno ah inay leedahay xiriir xoogan oo biyaha waxayna nuugi kartaa qoyaan badan. Hantidani waxay saameyn ku yeelataa habdhaqankeeda codsiyada kala duwan, oo ay ku jiraan isdhexgalka hababka biyaha ku salaysan sida isku dhafka sibidhka.
3. Solubility: cellulose saafi ah waa mid aan lagu milmi karin biyaha iyo inta badan dareerayaasha organic sababtoo ah qaab-dhismeedkeeda aadka u sarreeya iyo isku xirnaanta hydrogen ee ballaaran ee u dhexeeya silsiladaha polymer.
4. Derivatization: Cellulose ether waa nooc la bedelay oo cellulose ah oo lagu helo kala soocida kiimikada. Habkani waxa uu ku lug leeyahay soo bandhigida kooxaha shaqaynaya, sida hydroxyethyl, hydroxypropyl, methyl, ama kooxaha karboxymethyl, duleedda laf dhabarta cellulose. Wax-ka-beddeladani waxay beddelaan sifooyinka cellulose, oo ay ku jiraan milmaheeda, dabeecadda rheological, iyo isdhexgalka walxaha kale.
5. Solubility in Water: Cellulose ethers caadi ahaan waa lagu milma ama lagu firdhiyaa biyaha, taas oo ku xidhan nooca gaarka ah iyo heerka beddelka. milankani waxa uu ka dhigayaa in ay aad uga faa'iidaystaan ​​warshado kala duwan, oo ay ku jiraan dawooyinka, cuntada, waxyaalaha la isku qurxiyo, iyo dhismaha.
6. Codsiga: Ethers Cellulose waxay helayaan codsi baahsan sida wakiilada dhumucdooda, xasiliyayaal, xidhayaasha, iyo wakiilada filim samaynta ee noocyo kala duwan oo badeecado iyo habraacyo ah. Dhismaha, waxaa caadi ahaan loo isticmaalaa wax lagu daro walxaha sibidhka ku salaysan si loo wanaajiyo karti-shaqsiyeedka, haysashada biyaha, xabagta, iyo guryaha kale.

Marka la soo koobo, halka cellulose iyo cellulose ether ay wadaagaan asal caadi ah, ether cellulose ayaa kiimiko ahaan wax laga beddelay si ay u soo bandhigto sifooyin gaar ah oo ka dhigaya mid milmay ama lagu kala firdhiyey biyaha oo ku habboon codsiyada kala duwan halkaasoo xakamaynta dabeecadda rheological iyo isdhexgalka walxaha kale la rabo.