Kala firdhinta hydroxyethyl cellulose (HEC) waa geeddi-socod muhiim u ah warshado kala duwan, oo ay ku jiraan dawooyinka, waxyaalaha la isku qurxiyo, cuntada, iyo dhismaha. HEC waa polymer aan-ionic ahayn, biyo-milmi kara oo laga soo qaatay cellulose, oo si ballaaran loo isticmaalo sidii dhumuc, dejin, iyo wakiilka filim samaynta. Kala firdhinta saxda ah ee HEC waa lagama maarmaan si loo hubiyo shaqeynteeda alaabada dhamaadka.
Hordhac Hydroxyethyl Cellulose (HEC)
Hydroxyethyl cellulose (HEC) waa polymer isku dhafan oo ka soo jeeda cellulose iyada oo loo marayo hagaajinta kiimikada. Waxaa inta badan loo isticmaalaa warshadaha sida:
Daawooyinka: HEC waxaa loo isticmaalaa sidii wax ka beddelka viscosity iyo xasiliye qaabab kala duwan, oo ay ku jiraan dawooyinka afka iyo kuwa la mariyo.
Waxyaabaha la isku qurxiyo: HEC waxaa lagu shaqeeyaa kiriimyada, labeennada, shaambooyinka, iyo alaabta kale ee daryeelka shakhsi ahaaneed sida wakiilka dhumuc iyo emulsifier.
Cunto: Waxaa loo isticmaalaa alaabta cuntada sidii dhumuc, xasiliye, iyo wakiilka jeling.
Dhismaha: HEC waxaa loo isticmaalaa agabka dhismaha sida rinjiyada, xabagta, iyo alaabta sibidhka ku salaysan si loo hagaajiyo sifadooda rheological.
Ahmiyada kala firdhinta HEC
Kala firdhinta saxda ah ee HEC waa muhiim si loo gaaro guryaha la rabo ee alaabta ugu dambeysa. Kala firdhinta waxtarka leh waxay hubisaa:
Midaysan: Qaybinta isku midka ah ee HEC inta lagu jiro xalka ama matrixka.
Shaqaynta: HEC waxay buuxin kartaa doorkeeda loogu talagalay, sida dhumucdi, xasilinta, ama samaynta filimada.
Waxqabadka: Tilmaamaha waxqabadka oo la xoojiyey, oo ay ku jiraan xakamaynta viscosity, xasiloonida, iyo hufnaanta.
Dhaqaalaha: Sare u qaadista waxtarka isticmaalka HEC, yaraynta qashinka, iyo yaraynta kharashaadka wax soo saarka.
Hababka loo kala firdhiyo HEC
1. Kicinta Makaanikada:
Walaaqaya ama isku qas: Isticmaal kiciyeyaasha makaanikada, qasiyeyaasha, ama isku-dhafka si aad si tartiib tartiib ah HEC ugu kala firdhiso dareeraha ama matrixka. Hagaajin xawaaraha kicinta iyo muddada ku salaysan feejignaanta HEC iyo shuruudaha viscosity.
Kicinta Xawaaraha Sare: Shaqaalaysii kiciyayaasha xawaaraha sare leh ama isku-dheelitirka si degdeg ah u kala firdhiso, gaar ahaan uruurinta HEC sare ama xalalka viscous.
2. Farsamada Biyaha:
Biyo-bax ka-hor: Horey ugu milmi HEC qayb ka mid ah dareeraha heerkulka qolka ka hor intaadan ku darin qaybta ugu muhiimsan. Tani waxay sahlaysa kala firdhisanaan fudud waxayna ka hortagtaa isku-duubnida.
Ku darida tartiib tartiib ah: Ku dar HEC si tartiib ah dareeraha adigoo walaaqaya si joogto ah si loo hubiyo fuuqbaxa isku midka ah iyo kala firdhisanaanta.
3. Xakamaynta heerkulka:
Heerkulka ugu Fiican: Ku ilaali habka kala firdhinta heerkul aad u wanaagsan si kor loogu qaado milanka iyo kala firdhinta Kinetics ee HEC. Caadi ahaan, heerkulka qolka ilaa heerkul yar oo sarreeya ayaa ku habboon fidinta HEC.
Qubayska Biyaha Diirin: Isticmaal biyo diirran ama weel jaakad leh si aad u xakamayso heerkulka inta lagu jiro kala firdhinta, gaar ahaan codsiyada u baahan heerkul sare.
4. Hagaajinta pH:
pH-ga ugu Fiican: Ku hagaaji pH ee dareeraha ama firidhka dhexdhexaadka ah ilaa xadka ugu fiican ee milanka HEC iyo kala firdhisanaanta. Guud ahaan, dhexdhexaad ah ama wax yar xaaladaha pH alkaline ayaa u fiican fidinta HEC.
5. Farsamooyinka khafiifinta xiirid:
Hagaajinta Heerka xiiridda: Shaqaalayso farsamooyin xiirid-xiirid ah adiga oo hagaajinaya heerarka dhogorta inta lagu jiro kala firdhinta. Heerarka dhogorta sare waxay gacan ka geysan karaan jebinta isku-darka HEC iyo kor u qaadida kala firdhisanaanta.
Isticmaalka Qalabka Rheological: Isticmaal qalabka rheological si aad ula socoto oo aad u xakamayso heerarka xiirid inta lagu jiro kala firdhinta, hubinta fidinta joogtada ah oo waxtarka leh.
6. Faafinta Caawinta Dusha sare:
Xulashada Surfactant: Dooro dabaylaha ku habboon ama kala firdhiya wakiilada ku habboon HEC iyo dhexdhexaadiyaha kala firdhisan. Surfactants ayaa yarayn kara xiisadda dusha sare, kor u qaadida qoynta, iyo caawinta kala firdhinta HEC.
Xoog saarista dusha sare: Kor u qaad uruurinta surfactants si loo fududeeyo kala firdhinta HEC iyada oo aan wax saameyn ah ku yeelan hantideeda ama waxqabadka badeecada ugu dambeysa.
7. Ultrasonication:
Kala firdhinta Ultrasonic: Codso tamarta ultrasonic fidinta HEC adoo isticmaalaya shaybaarrada ultrasonic ama qubayska. Ultrasonication kor u dhimista size qayb qayb, deagglomeration, iyo kala firidhsan dirays ee qayb HEC ee dareeraha ama matrix.
8. Farsamooyinka Yaraynta Cabbirka Qaybaha:
Shiididda ama Shiididda: Isticmaal qalabka wax lagu shiidi karo si aad u yareyso cabbirka walxaha isku-darka HEC, fududaynta kala firdhisanaanta fudud iyo hagaajinta isku midka ah ee kala firidhsan.
Falanqaynta Cabbirka Qaybaha: La soco oo koontarool qaybinta cabbirka walxaha HEC ee kala firdhiyey iyadoo la adeegsanayo farsamooyinka sida kala-soocidda laysarka ama kala-firdhinta iftiinka firfircoon.
9. Tallaabooyinka Xakamaynta Tayada:
Cabbirka Viscosity: Si joogto ah ula soco viscosity ee kala firdhisanaanta HEC inta lagu guda jiro habka kala firdhiso si loo hubiyo joogtaynta oo loo gaaro sifooyinka rheological ee la doonayo.
Falanqaynta Cabbirka Qaybaha: Samee falanqaynta cabbirka walxaha si loo qiimeeyo waxtarka kala firdhisanaanta oo loo hubiyo qaybinta isku midka ah ee qaybaha HEC.
Kala firdhinta hydroxyethyl cellulose (HEC) si wax ku ool ah ayaa lagama maarmaan u ah gaaritaanka guryaha la rabo iyo waxqabadka codsiyada warshadaha kala duwan. Shaqaalaysiinta hababka fidinta ku habboon, oo ay ku jiraan kicinta farsamada, farsamooyinka fuuqbaxa, xakamaynta heerkulka, hagaajinta pH, farsamooyinka xiirid-khafiif ah, gargaarka surfactant, ultrasonication, iyo qayb ka mid ah dhimista, waxay xaqiijin kartaa kala firidhsan uniform iyo sare u qaadida shaqaynta HEC ee alaabta dhamaadka. Intaa waxaa dheer, hirgelinta tillaabooyinka xakamaynta tayada sida cabbirka viscosity iyo falanqaynta cabbirka walxaha waxay gacan ka geysataa joogteynta iyo hagaajinta habka fidinta. Markaad raacdo tilmaamahan, soosaarayaashu waxay kor u qaadi karaan hufnaanta iyo tayada qaababka ku salaysan HEC ee warshadaha kala duwan.
Waqtiga boostada: Abriil-09-2024