Kulanka u dhexeeya hydroxyethyl cellulose iyo daahan biyaha ku salaysan

Waa maxay Hydroxyethyl Cellulose?
Hydroxyethyl cellulose (HEC), jaale cad ama khafiif ah, aan ur lahayn, fibros aan sun ahayn ama adag budo ah, oo lagu diyaariyey falcelinta etherification ee cellulose alkaline iyo ethylene oxide (ama chlorohydrin), waxaa iska leh ethers cellulose ee Nonionic milmaya. Maaddaama HEC ay leedahay sifooyin wanaagsan oo dhumucdiisuna waxay tahay, hakin, kala firdhiyo, emulsifying, bonding, film-samaynta, ilaalinta qoyaanka iyo bixinta kolloid ilaalinta, waxa si weyn loogu isticmaalay sahaminta saliidda, dahaarka, dhismaha, daawada, cuntada, dunta, waraaqaha iyo polymer Polymerization. iyo goobo kale.

Hydroxyethyl cellulose waxaa si weyn loogu isticmaalaa warshadaha daahan, aynu eegno sida ay u shaqeyso ee daahan:

Maxaa dhacaya marka hydroxyethyl cellulose ay la kulmaan rinjiga biyaha ku salaysan?

Sida surfactant aan-ionic ahayn, hydroxyethyl cellulose waxay leedahay sifooyinka soo socda marka lagu daro dhumuc, laalitaan, xidhidh, sabbayn, filim samaynta, kala firdhisan, haynta biyaha iyo bixinta kolloid ilaalinta:

HEC waxay ku milmi kartaa biyo kulul ama biyo qabow, heerkul sare ama karkarin iyada oo aan roob lahayn, si ay u leedahay noocyo kala duwan oo ah milanka iyo sifooyinka viscosity, iyo gelation non-thermal;

Awoodda haynta biyuhu waxay laban laab ka badan tahay tan methyl cellulose, waxayna leedahay nidaaminta qulqulka wanaagsan;

Waa non-ionic oo waxay la noolaan kartaa tiro balaadhan oo ah polymers kale oo biyo-milmi kara, surfactants, iyo cusbo. Waa dhumuc weyn oo kolloidal ah oo loogu talagalay xalalka korantada ee xoogga leh;

Marka la barbar dhigo methyl cellulose-ka la aqoonsan yahay iyo hydroxypropyl methyl cellulose, awoodda kala firdhisan ee HEC waa tan ugu xun, laakiin awoodda kolloid ilaalinta ayaa ah tan ugu xooggan.

Maaddaama dusha lagu daaweeyay hydroxyethyl cellulose ay tahay budo ama adag adag, qodobada soo socda waa in la raaco marka la diyaarinayo khamriga hooyada hydroxyethyl cellulose:

(1) Kahor iyo ka dib marka lagu daro hydroxyethyl cellulose, waa in si joogto ah loo walaaqaa ilaa xalku si buuxda u hufan yahay oo cad yahay.
(2) Waa in si tartiib ah loogu miiraa taangiga isku-darka ah, oo ha saarin xaddi badan ama si toos ah ha u gelin hydroxyethyl cellulose haanta isku-darka ah.
(3) Heerkulka biyaha iyo qiimaha PH ee biyaha ayaa xiriir weyn la leh kala dirida cellulose hydroxyethyl, markaa waa in fiiro gaar ah la bixiyaa.
(4) Ha ku darin qaar ka mid ah walxaha alkaline isku dhafka ka hor inta aan budada hydroxyethyl cellulose lagu qooyay biyo. Kor u qaadista pH ka dib qoynta waxay caawisaa inay milmaan.
(5) Inta suurtogalka ah, horay ugu sii daa wakiilka antifungal.
(6) Marka la isticmaalayo hydroxyethyl cellulose-viscosity-sare, fiirsashada khamriga hooyadu waa inuusan ka badnaan 2.5-3% (miisaan ahaan), haddii kale khamriga hooyadu way adkaan doontaa in la xakameeyo.