Hydroxyethyl cellulose (HEC) waa huruud cad ama khafiif ah, aan ur lahayn, aan sun ahayn fayraska ama budada adag, oo laga sameeyay suuf cayriin ah ama saxarka la safeeyey ee lagu qooyay 30% alkali dareere ah, la soo baxay oo la riixay ka dib nus saac ka dib, tuuji ilaa saamiga. biyaha alkalineku waxay gaadhaan 1:2.8, ka dibna burburi. Waxaa lagu diyaariyaa falcelinta etherification waxaana iska leh ethers cellulose-ka aan-ionic-ka ahayn. Hydroxyethyl cellulose waa dhumuc muhiim ah oo rinjiga cinjirka ah. Aynu xoogga saarno sida loo isticmaalo hydroxyethyl cellulose HEC rinjiga cinjirka ah iyo taxaddarrada.
1. Ku qalabaysan khamriga hooyada si loogu isticmaalo: marka hore isticmaal hydroxyethyl cellulose HEC si aad u diyaarisid khamriga hooyada leh feejignaan sare, ka dibna ku dar alaabta. Faa'iidada habkani waa in uu leeyahay dabacsanaan weyn oo si toos ah loogu dari karo alaabta la dhammeeyey, laakiin waa in si habboon loo kaydiyaa. Tallaabooyinka habkani waxay la mid yihiin inta badan tillaabooyinka habka 2; Farqiga ayaa ah in aysan jirin baahi loo qabo kicinta xiirid sare leh, oo kaliya qaar ka mid ah agitators oo leh awood ku filan si ay u ilaaliyaan cellulose hydroxyethyl si isku mid ah u kala firdhisanaanta xalka ayaa la sii wadi karaa iyada oo aan la joojin Walaaq ilaa si buuxda loo kala diro xal viscous ah. Si kastaba ha ahaatee, waa in la ogaadaa in fungicides waa in lagu daraa khamriga hooyada sida ugu dhakhsaha badan.
2. Ku dar si toos ah inta lagu jiro wax soo saarka: habkani waa kan ugu fudud oo qaata wakhtiga ugu gaaban. Ku dar biyo nadiif ah baaldi weyn oo ku qalabaysan qasiyaha xiirid sare. Bilow inaad si joogto ah u walaaq xawaare hoose oo si tartiib ah u kala miir hydroxyethyl cellulose si siman xalka. Sii wad walaaq ilaa dhammaan qaybaha ay qooyaan. Ka dibna ku dar maadada-ilaalinta iyo waxyaabaha lagu daro ee kala duwan. Sida midabada, qalabka kala firdhisan, biyaha ammonia, iwm. Walaaq ilaa dhammaan hydroxyethyl cellulose HEC ay si buuxda u milmaan (viskosity ee xalka ayaa si cad u kordheysa) ka dibna ku dar qaybaha kale ee qaacidada falcelinta.
Ka taxadaritaan;
(1) Markaad isticmaalayso viscosity hydroxyethyl cellulose HEC, fiirsashada khamriga hooyadu waa inuusan ka badnaan 2.5-3% (miisaan ahaan), haddii kale khamriga hooyadu way adkaan doontaa in la xakameeyo.
(2) Kahor iyo ka dib marka lagu daro hydroxyethyl cellulose HEC, waa in si joogto ah loo walaaqaa ilaa xalku si buuxda u hufan yahay oo cad yahay.
(3) Inta ugu badan ee suurtogalka ah, horay ugu dar wakiilka antifungal.
(4) Heerkulka biyaha iyo qiimaha pH ee biyuhu waxay xidhiidh cad la leeyihiin milanka hydroxyethyl cellulose, markaa waa in fiiro gaar ah la bixiyaa.
(5) Ha ku darin qaar ka mid ah walxaha alkaline isku darka ka hor inta aan budada hydroxyethyl cellulose lagu qooyay biyo. Kor u qaadida pH ka dib marka la qooyo waxay kaa caawin doontaa milanka.
(6) Waa in si aayar ah loogu shaandheeyaa haanta isku dhafka ah, oo ha ku darin tiro badan ama si toos ah ha ugu darin hydroxyethyl cellulose oo samaystay buro iyo kubbado haanta qas
Qodobbada muhiimka ah ee saameeya viscosity ee rinjiga cinjirka:
1 Daxalka dhumucyada by noolaha.
2 Habka rinjiyeynta, haddii isku xigxiga isku darka dhumucdiisu ay sax tahay.
3 Haddii qadarka firfircoonida dusha sare iyo cadadka biyaha ee caanaha rinjiga ku habboon yihiin.
4 Saamiga tirada dhumucyada kale ee dabiiciga ah iyo cadadka hydroxyethyl cellulose ee samaynta rinjiga.
5 Marka latex samaysmo, waxa ku jira kiciyayaal hadhaa ah iyo oksaydhooyin kale.
6 Heerkulku aad buu u sarreeyaa inta lagu jiro kala firdhinta sababtoo ah walaaqin xad dhaaf ah.
7 Markasta oo ay xumbo hawo badani ku hadhsan yihiin rinjiga, waa ka badan yahay viscosity-ku.
Viscosity of hydroxyethyl cellulose HEC wax yar isbedelaya ee kala duwan pH ee 2-12, laakiin viscosity hoos u badan xad this. Waxay leedahay sifooyinka dhumucda, laalista, xidhitaanka, emulsifying, firdhiya, ilaalinta qoyaanka iyo ilaalinta kolloid. Xalka noocyada viscosity ee kala duwan ayaa la diyaarin karaa. Aan degganayn heerkulka caadiga ah iyo cadaadiska, ka fogow huurka, kulaylka, iyo heerkulka sare, waxayna leedahay milmi milixeed oo gaar ah oo ku habboon aaladaha dielectrics, iyo xalkeeda aqueous waxaa loo oggol yahay inuu ka kooban yahay xaddi badan oo cusbo ah oo weli xasilloon.
Waqtiga boostada: Febraayo-14-2023