Waa maxay ethers Cellulose

Cellulose ethers waa qoys ka kooban xeryahooda kiimikaad oo laga soo qaatay cellulose, polymer-ka dabiiciga ah ee laga helo gidaarada unugyada dhirta. Alaabooyinkaan waxaa lagu abuuray wax ka bedel kiimikaad ee unugyada cellulose si ay u soo bandhigaan kooxo kala duwan oo shaqeynaya, taasoo keentay noocyo badan oo hanti ah iyo codsiyo. Ether-ka Cellulose waxaa caadi ahaan loo isticmaalaa warshadaha sida dhismaha, daawooyinka, cuntada, waxyaabaha la isku qurxiyo, iyo daryeelka shakhsi ahaaneed iyadoo ay ugu wacan tahay dabeecadahooda kala duwan iyo sifooyinka faa'iidada leh. Waa kuwan qaar ka mid ah noocyada caadiga ah ee ether-ka cellulose iyo isticmaalkooda:

1. Methyl Cellulose (MC):
   • Methyl cellulose waxaa lagu soo saaraa iyadoo lagu daaweynayo cellulose leh methyl chloride.
   • Waxay ku milmay biyaha waxayna samaysaa xalal cad oo muuqda.
   • MC waxa loo isticmaalaa dhumuc ahaan, xidhidhiye, iyo xasiliye agabka dhismaha (tusaale, hoobiye-cement-ku-salaysan, balastar gypsum-ku-salaysan), badeecooyinka cuntada, dawooyinka, iyo alaabta daryeelka shakhsi ahaaneed.
2. Hydroxyethyl Cellulose (HEC):
   • Hydroxyethyl cellulose waxa lagu farsameeyaa iyada oo ka falcelinaysa cellulose leh ethylene oxide si ay u soo bandhigto kooxaha hydroxyethyl.
   • Waxay ku milmi kartaa biyaha waxayna samaysaa xalal cad oo viscous leh oo leh sifooyin biyo celin ah oo aad u fiican.
   • HEC waxaa caadi ahaan loo isticmaalaa sidii dhumuc, beddele rheology, iyo wakiilka samaynta filimada ee rinjiga, xabagta, alaabta daryeelka shakhsi ahaaneed, iyo daawooyinka.
3. Hydroxypropyl Methyl Cellulose (HPMC):
   • Hydroxypropyl methyl cellulose waxa lagu soo saaraa iyada oo la soo bandhigayo hydroxypropyl iyo methyl kooxaha laf dhabarta cellulose.
   • Waxay soo bandhigaysaa sifooyin la mid ah methyl cellulose iyo hydroxyethyl cellulose labadaba, oo ay ku jiraan milanka biyaha, kartida samaynta filimada, iyo xajinta biyaha.
   • HPMC waxa si weyn loogu isticmaalaa agabka dhismaha (tusaale, xabag-xabagta, wax-soo-saarka sibidhka ku salaysan, iskudhisyada is-beddelka), iyo sidoo kale daawooyinka, alaabta cuntada, iyo alaabta daryeelka shakhsi ahaaneed.
4. Carboxymethyl Cellulose (CMC):
   • Carboxymethyl cellulose waxaa laga soo qaatay cellulose iyadoo lagu daaweeyay sodium hydroxide iyo monochloroacetic acid si loo soo bandhigo kooxaha karboxymethyl.
   • Waxay ku milmi kartaa biyaha waxayna samaysaa xalal cad oo viscous leh oo leh dhumuc aad u wanaagsan, xasilin, iyo sifooyin biyo celin ah.
   • CMC waxa caadi ahaan loo isticmaalaa dhumucdiye, xidhe, iyo rheology wax ka beddelka alaabta cuntada, dawooyinka, dunta, waraaqaha, iyo qalabka dhismaha qaarkood.

Kuwani waa qaar ka mid ah ether-ka cellulose-ka sida caadiga ah loo isticmaalo, mid kastaa wuxuu leeyahay sifooyin u gaar ah iyo codsiyada warshadaha kala duwan. Ethers kale oo khaas ah oo cellulose ah ayaa sidoo kale jiri kara, oo ku habboon shuruudaha gaarka ah ee codsiyada kala duwan.