Thickener hec hydroxyethyl cellulose

Hydroxyethyl cellulose (HEC) waa derivative cellulose nonionic in si ballaaran loo isticmaalo in warshadaha kala duwan ay sabab u tahay dhumucdiisuna aad u fiican, laalista, iyo guryaha emulsifying. HEC waa polymer-ka biyaha ku milma oo si fudud loogu milmi karo biyo qabow si loo sameeyo xalal cad oo aan midab lahayn. HEC waxaa caadi ahaan loo isticmaalaa sidii dhumuc ahaan codsiyo badan oo kala duwan, oo ay ku jiraan daaha, koollada, alaabta daryeelka shakhsi ahaaneed, iyo daawooyinka.

HEC waxaa lagu soo saaraa iyada oo wax ka beddeleysa cellulose dabiiciga ah, polymer ka kooban unugyo gulukoos oo isku xiran β(1→4) glycosidic bonds. Wax ka beddelka cellulose waxay ku lug leedahay soo bandhigida kooxaha hydroxyethyl (-CH2CH2OH) ee unugyada anhydroglucose ee laf-dhabarka cellulose. Wax ka beddelkani waxa uu keenaa polymer-ka biyaha-milmi kara kaas oo samayn kara curaarta hydrogen-ka oo leh molecules biyaha, taas oo horseedaysa samaynta xal viscous ah.

HEC waa dhumuc wax ku ool ah sababtoo ah awoodda ay u leedahay in ay sameyso qaab-dhismeedka gel-sida marka lagu daro xalka. Kooxaha hydroxyethyl ee ku jira molecule HEC waxay la falgali karaan molecules biyaha, taasoo keentay samaynta curaarta hydrogen. Xidhiidhada hydrogen ka dhexeeya molecule HEC iyo molecules biyuhu waxay sababaan molecule-ka HEC inuu noqdo mid fuuqbaxay oo ballaadhiyay cabbirkiisa. Marka molecule HEC uu balaadhiyo, waxay samaysaa qaab-dhismeedka shabakad saddex-geesood ah oo dabinaysa biyaha iyo qaybaha kale ee kala diri, taasoo keentay kororka viscosity ee xalka.

Awoodda dhumucda HEC waxaa saameeya arrimo kala duwan, oo ay ku jiraan diiradda HEC ee xalka, heerkulka, iyo pH. Heerarka sare ee HEC ee xalka ayaa keenaya koror aad u weyn oo ku saabsan viscosity. Si kastaba ha ahaatee, kordhinta diirada HEC ee ka baxsan meel gaar ah waxay u horseedi kartaa hoos u dhaca viscosity sababtoo ah samaynta isku-darka. Heerkulka sidoo kale wuxuu saameeyaa awoodda dhumucda ee HEC, oo leh heerkul sare taasoo horseedaysa hoos u dhaca viscosity. pH ee xalku sidoo kale waxay saameyn kartaa awoodda dhumuc ee HEC, oo leh qiimaha pH ee sare u horseedaya hoos u dhaca viscosity.

HEC waxaa badanaa loo isticmaalaa dhumuc ahaan codsiyada kala duwan, oo ay ku jiraan dahaarka iyo rinjiyada. Dahaarka, HEC waxaa lagu daraa qaabeynta si loo hagaajiyo sifooyinka rheological ee dahaarka. Astaamaha rheological ee dahaarka waxay tixraacaan awoodda qulqulka iyo heerka korka. HEC waxay wanaajin kartaa socodka iyo sinnaanta sifooyinka dahaarka iyada oo kordhinaysa viscosity-keeda oo ay hoos u dhigto u janjeeradeeda. HEC waxay sidoo kale wanaajin kartaa xasilloonida dahaarka iyadoo ka hortagaysa dejinta midabada iyo walxaha kale ee adag.

Xabagta, HEC waxaa loo isticmaalaa dhumuc ahaan si loo hagaajiyo viscosity iyo tackness ee koollada. Viscosity ee koollada ayaa lagama maarmaan u ah awoodda ay u leedahay in ay ku dhegto dusha sare oo ay ku sii jirto. HEC waxay wanaajin kartaa viscosity ee koollada waxayna ka ilaalin kartaa inay tifqdo ama ordo. HEC waxay sidoo kale wanaajin kartaa xabagta xabagta, taasoo u oggolaanaysa inay si fiican ugu dhegto dusha sare.

Alaabooyinka daryeelka shakhsi ahaaneed, HEC waxaa loo isticmaalaa dhumuc iyo xasiliye ahaan. HEC waxaa caadi ahaan loo isticmaalaa shaambada, qaboojiyaha, iyo maydhista jirka si loo hagaajiyo viscosity-kooda iyo muuqaalkooda. HEC waxay sidoo kale wanaajin kartaa xasilloonida alaabooyinkan iyadoo ka hortagaysa kala-soocidda wejiga iyo dejinta walxaha adag.

Daawooyinka, HEC waxaa loo isticmaalaa sidii dhumuc iyo wakilad laalid ah. HEC waxaa caadi ahaan loo isticmaalaa ka joojinta afka si loo hakiyo daawooyinka aan milmi karin dhexdhexaadiyaha dareeraha ah. HEC waxa kale oo loo isticmaali karaa sidii dhumuc ahaan kiriimyada la mariyo iyo jelka si loo wanaajiyo viscosity-kooda iyo muuqaalkooda.

Gebogebadii, HEC waa polymer-ka biyaha-milmi kara oo si weyn loogu isticmaalo dhumuc ahaan warshadaha kala duwan sababtoo ah dhumucdeeda aad u fiican, laalista, iyo guryaha emulsifying.