Ethyl cellulose hydrophilic ama hydrophobic

Ethyl cellulose waa polymer synthetic ah oo si weyn loogu isticmaalo warshado kala duwan, oo ay ku jiraan daawooyinka, cuntada, iyo daryeelka shakhsi ahaaneed. Waxaa lagu yaqaanaa sifooyinkeeda filim-samaynta aadka u wanaagsan, ku habboonaanta sare ee qalabka kale, iyo caabbinta wanaagsan ee kiimikooyinka iyo arrimaha deegaanka. Mid ka mid ah sifooyinka muhiimka ah ee ethyl cellulose waa hydrophobicity, taas oo ah cabbirka u dhowaanshaha biyaha.

Hydrophobicity waa hanti ay leedahay walax qeexaysa u janjeera inay iska celiso molecules biyaha. Guud ahaan, walxaha hydrophobic waa kuwo aan milmi karin ama si liidata ugu milmay biyaha waxayna u muuqdaan inay la xiriiraan molecules kale ee hydrophobic. Hydrophobicity waxaa sida caadiga ah lagu gartaa joogitaanka kooxo aan polar ama kooxo hoose oo qaab dhismeedka molecular ah, sida silsiladaha hydrocarbon ama giraanti caraf udgoon.

Ethyl cellulose waxaa loo tixgeliyaa inuu yahay polymer hydrophobic sababtoo ah joogitaanka kooxaha ethyl ee qaab-dhismeedka molecular. Kooxaha ethyl waa nonpolar iyo hydrophobic, joogistooduna waxay kordhisaa hydrophobicity guud ee polymerka. Intaa waxaa dheer, ethyl cellulose waxay leedahay heer aad u hooseeya oo lagu beddelo kooxaha ethyl, taas oo sii kordhinaysa dabeecadeeda hydrophobic.

Si kastaba ha noqotee, hydrophobicity of ethyl cellulose waxaa lagu bedeli karaa iyadoo la beddelayo heerka beddelka ama lagu daro kooxaha hydrophilic qaab dhismeedka polymer. Tusaale ahaan, soo bandhigida kooxaha hydrophilic sida hydroxyl ama kooxaha karboxyl waxay kordhin karaan hydrophilicity ee polymer waxayna wanaajisaa milmaheeda biyaha. Heerka beddelka sidoo kale waa la kordhin karaa si loo kordhiyo tirada kooxaha hydrophilic iyo kor loogu qaado hydrophilicity ee polymerka.

In kasta oo ay hydrophobicity, ethyl cellulose weli waxaa loo arkaa inay tahay wax faa'iido u leh codsiyada kala duwan, gaar ahaan warshadaha dawooyinka. Dabeecaddeeda hydrophobic waxay ka dhigtaa qalab aad u fiican oo loogu talagalay hababka bixinta daroogada, maadaama ay ka hortagi karto dhexgalka qoyaanka ama walxaha kale ee hydrophilic ee qaabka qiyaasta. Tani waxay kaa caawin kartaa ilaalinta xasilloonida iyo waxtarka daawada muddo dheer.

Marka la soo koobo, ethyl cellulose waa polymer hydrophobic sababtoo ah joogitaanka kooxaha ethyl nonpolar ee qaab-dhismeedka molecular. Si kastaba ha noqotee, hydrophobicitykeeda waxaa lagu beddeli karaa iyadoo la beddelayo heerka beddelka ama lagu daro kooxaha hydrophilic qaab dhismeedka polymer. In kasta oo ay dabeecadda hydrophobic, ethyl cellulose weli waa shay waxtar u leh codsiyada kala duwan, gaar ahaan warshadaha dawooyinka.