Focus on Cellulose ethers

Hydroxyethylcellulose jel

Hydroxyethylcellulose (HEC) waa polymer-ka biyaha ku milma oo caadi ahaan loo isticmaalo samaynta jel-ka sababtoo ah dhumucdeeda, xasilinta, iyo guryaha gelling-ka. Heerarka HEC waxaa loo isticmaalaa codsiyo kala duwan, oo ay ku jiraan alaabta daryeelka shakhsi ahaaneed, daawooyinka, iyo cuntada.

Si loo abuuro jel HEC ah, polymerka ayaa marka hore lagu kala firdhiyaa biyaha ka dibna waa la qasi karaa ilaa si buuxda u fuuqbaxo. Tani waxay caadi ahaan u baahan tahay walaaq ama isku qas dhowr daqiiqadood si loo hubiyo in polymer-ku si buuxda u kala firdhiyey oo fuuqbaxay. Xalka HEC ee ka soo baxa ayaa markaa lagu kululeeyaa heerkul gaar ah, taas oo ku xidhan heerka gaarka ah ee HEC ee loo isticmaalo, si loo dhaqaajiyo sifooyinka gelling ee polymerka.

Jeelka HEC ayaa markaa lagu dari karaa waxyaabo kale, sida maaddooyinka firfircoon, udgoonka, ama midabada. Habka gaarka ah ee jelku wuxuu ku xirnaan doonaa sifooyinka la rabo ee alaabta ugu dambeysa.

Mid ka mid ah faa'iidooyinka isticmaalka HEC ee qaababka jel waa awoodda ay u leedahay inay bixiso jilicsanaan, jilicsanaan leh alaabta ugu dambeysa. Heerarka HEC sidoo kale aad ayey u deggan yihiin waxayna ku ilaalin karaan muuqaalkooda iyo viscosity-kooda heerkul ballaaran oo kala duwan iyo heerarka pH.

Marka lagu daro sifooyinka xasilinta iyo dhumucda, HEC waxay sidoo kale leedahay huurka iyo sameynta filimada, taas oo ka dhigi karta shay faa'iido leh oo ku jira alaabta daryeelka shakhsi ahaaneed sida qoyaanka iyo muraayadaha qorraxda. HEC sidoo kale waxaa loo isticmaali karaa sidii wakiilka hakinta habaynta u baahan qaybinta xitaa qaybinta walxaha ama maaddooyinka.

Heerarka HEC waxaa caadi ahaan loo isticmaalaa noocyo kala duwan oo alaabta daryeelka shakhsi ahaaneed, oo ay ku jiraan jellaha timaha, nadiifinta wejiga, iyo dhaqidda jidhka. Waxa kale oo loo isticmaali karaa daawooyinka sida habka dhalmada ee daawooyinka la mariyo ama sida wakiilka dhumuc ee daawooyinka dareeraha ah.


Waqtiga boostada: Mar-08-2023
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