Hydroxyethyl Cellulose (HEC) waa iskudhis guud oo biyo-milmi leh oo si ballaaran loogu isticmaalo rinjiga cinjirka. Ma aha oo kaliya inay door muhiim ah ka ciyaaraan hagaajinta waxqabadka alaabta, laakiin sidoo kale waxay si weyn u wanaajisaa waayo-aragnimada codsiga iyo tayada filimka ugu dambeeya.
Astaamaha Hydroxyethyl Cellulose
Hydroxyethyl cellulose waa ether nonionic cellulose ah oo laga soo saaro cellulose dabiiciga ah iyada oo loo marayo hagaajinta etherification. Waxay leedahay dhumuc wanaagsan, laalid, firdhiso iyo sifooyin emulsifying. Guryahani waxay awood u siinayaan HEC inay ku samayso kollooids deggan xalal aqueous leh viscosity sare iyo sifooyinka rheological wanaagsan. Intaa waxaa dheer, xalka biyaha ee HEC wuxuu leeyahay daah-furnaan wanaagsan iyo awood biyo celin hufan. Tilmaamahan ayaa ka dhigaya in si weyn loogu isticmaalo rinjiga cinjirka.
Doorka rinjiga cinjirka
dhumuc weyn leh
Sida mid ka mid ah dhumucyada ugu muhiimsan ee rinjiga cinjirka, HEC shaqadiisa ugu muhiimsan waa in la kordhiyo viscosity ee dareeraha rinjiga. Viscosity saxda ah ma hagaajin karo oo kaliya xasiloonida kaydinta rinjiga cinjirka, laakiin sidoo kale wuxuu ka hortagi karaa roobka iyo delamination. Intaa waxaa dheer, viscosity ku habboon ayaa ka caawiya xakameynta hoos u dhaca waxayna hubisaa heerka wanaagsan iyo caymiska inta lagu jiro codsiga, si loo helo filim daahan oo isku mid ah.
hagaajinta xasilloonida
HEC waxay si weyn u wanaajin kartaa xasiloonida rinjiyada cinjirka. Qaababka rinjiga cinjirka ah, HEC waxay si wax ku ool ah uga hortagi kartaa midabada iyo buuxinta inay dejiyaan, taasoo u oggolaanaysa rinjiga inuu si siman u kala firdhiyo inta lagu jiro kaydinta iyo isticmaalka. Gurigani wuxuu si gaar ah muhiim ugu yahay kaydinta muddada dheer, isagoo gacan ka geysanaya kordhinta nolosha shelf ee rinjiga cinjirka.
Haysashada biyaha
Dhismaha rinjiga cinjirka ayaa inta badan ku lug leh isticmaalka xaddi badan oo biyo ah, iyo HEC ee guryaha ugu fiican ee ilaalinta biyaha waxay ilaalinayaan filimka daahan si siman inta lagu jiro habka qalajinta, ka fogaanshaha cilladaha dusha sare sida dildilaaca, budada iyo dhibaatooyinka kale ee ay keento uumiga degdega ah ee biyaha. . Tani ma aha oo kaliya inay ka caawiso sameynta filimka dahaarka, laakiin sidoo kale waxay hagaajinaysaa adhesion iyo adkeysiga filimka daahan.
hagaajinta Rheology
Sida wax ka beddelka rheology-ga, HEC waxay hagaajin kartaa habdhaqanka khafiifinta xiirta ee rinjiga cinjirka, taas oo ah, viscosity ee rinjiga ayaa la dhimay heerar sare oo xiirid (sida cadayashada, dahaarka rullalulatada, ama buufinta), taasoo sahlaysa in la codsado, iyo heerarka dhogorta hoose. Soo kabashada viscosity ee heerarka dhogorta (tusaale nasashada) waxay ka hortagtaa hoos u dhaca iyo socodka. Hantidan rheological waxay saameyn toos ah ku leedahay dhismaha iyo tayada ugu dambeysa ee rinjiga cinjirka.
Hagaajinta dhismaha
Soo bandhigida HEC waxay si weyn u wanaajin kartaa shaqada rinjiga cinjirka, taasoo ka dhigaysa rinjiga mid jilicsan oo labbisan inta lagu jiro codsiga. Waxay yarayn kartaa calaamadaha burushka, waxay siin kartaa jilicsanaan wanaagsan iyo dhalaalid filimka daahan, waxayna wanaajisaa khibradda isticmaalaha.
Dooro oo isticmaal
Qaababka rinjiga cinjirka, xulashada iyo qiyaasta HEC waxay u baahan yihiin in la hagaajiyo iyadoo lagu salaynayo baahiyo gaar ah. HEC oo leh muuqaalo kala duwan iyo darajo beddelaad ayaa saameyn kala duwan ku yeelan doonta waxqabadka rinjiga cinjirka. Guud ahaan, HEC-viscosity-sare ayaa aad ugu habboon rinji-jilicsan oo qaro weyn leh oo u baahan viscosity sare, halka HEC-ga yar ee viscosity uu ku habboon yahay rinji-dahaarka khafiifka ah oo leh dheecaan wanaagsan. Intaa waxaa dheer, qadarka HEC ee lagu daray waxay u baahan tahay in la hagaajiyo iyadoo loo eegayo baahiyaha dhabta ah. HEC aad u badan waxay sababi doontaa dhumuc xad-dhaaf ah oo daahan ah, taas oo aan ku habboonayn dhismaha.
Wax-qabad muhiim ah oo lagu daro, hydroxyethyl cellulose wuxuu ka ciyaaraa doorar badan rinjiyada cinjirka: dhumucdi, xasilinta, ilaalinta biyaha iyo hagaajinta kartida shaqada. Isticmaalka macquulka ah ee HEC kaliya ma hagaajin karto xasiloonida kaydinta iyo waxqabadka dhismaha ee rinjiga cinjirka, laakiin sidoo kale si weyn u wanaajinaya tayada iyo cimri dhererka filimka daahan. Iyadoo horumarinta warshadaha daahan iyo horumarinta tignoolajiyada, rajada codsiga ee HEC ee rinjiga cinjirka noqon doonaa ballaaran.
Waqtiga boostada: Agoosto-03-2024