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.
Ka dib kulanka hydroxyethyl cellulose iyo 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;
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;
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 ka kooban elektrolytka-fiirsashada sare.
Sida loo isticmaalo hydroxyethyl cellulose?
Ku dar si toos ah inta lagu jiro wax soo saarka - habkani waa kan ugu fudud oo qaata wakhtiga ugu gaaban:
Bilow inaad si joogto ah u walaaqdo xawaare hooseeya oo si tartiib ah u kala miir hydroxyethyl cellulose si siman xalka oo sii wad walaaq ilaa dhammaan qaybaha la qooyay. Ka dibna ku dar maadada-ilaalinta iyo waxyaallaha kala duwan. Sida midabada, qalabka kala firdhisan, biyaha ammonia, iwm. Walaaq ilaa dhammaan cellulose hydroxyethyl ay si buuxda u milmaan (viskosity ee xalku si weyn ayuu u kordhayaa) ka hor intaadan ku darin qaybaha kale ee qaacidada falcelinta.
Ku qalabaysan khamriga hooyada
Waa in marka hore la diyaariyo khamriga hooyada oo leh feejignaan sare, ka dibna lagu daro 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 1; 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.
Talooyin naxariis leh:
Maaddaama dusha sare ee hydroxyethyl cellulose lagu daaweeyay ay tahay budo ama adag adag, marka la diyaarinayo khamriga hooyada hydroxyethyl cellulose, xasuusin inaad u fiirsato qodobada soo socda:
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;
Waa in si tartiib ah loogu shaandheeyaa haanta wax-ku-daridda, oo si toos ah ha u gelin haanta wax-ku-darka tiro badan ama buro, kubbado iyo hydroxyethyl cellulose;
Heerkulka biyaha iyo qiimaha PH ee biyuhu waxay leeyihiin xidhiidh cad oo la xidhiidha milanka hydroxyethyl cellulose, markaa fiiro gaar ah waa in la bixiyaa;
Ha ku darin qaar ka mid ah walxaha alkaline isku dhafka ka hor inta aan budada hydroxyethyl cellulose lagu qooyay biyo. Kor u qaadista qiimaha pH ka dib marka la qooyo waxay kaa caawin doontaa milanka;
Inta ugu badan ee suurtogalka ah, horay ugu sii daa wakiilka ka hortagga caaryada;
Marka la isticmaalayo hydroxyethyl cellulose viscosity-sare ah, fiirsashada khamriga hooyadu waa in aanay ka badnaan 2.5-3% (miisaan ahaan), haddii kale khamriga hooyadu way adkaan doontaa in la xakameeyo.
Waqtiga boostada: Dec-23-2022