Xalalka waxay door muhiim ah ka ciyaaraan samaynta iyo habaynta polymers sida ethyl cellulose (EC). Ethyl cellulose waa polymer isku dhafan oo laga soo qaatay cellulose, polymer dabiici ah oo laga helo gidaarada unugyada dhirta. Waxaa caadi ahaan loo isticmaalaa warshado kala duwan sida dawooyinka, dahaarka, xabagta, iyo cuntada.
Marka la dooranayo dareerayaasha ethyl cellulose, dhowr arrimood ayaa loo baahan yahay in la tixgeliyo, oo ay ku jiraan solubility, viscosity, volatility, toxicity, iyo saamaynta deegaanka. Doorashada dareeraha waxay si weyn u saameyn kartaa sifooyinka alaabta ugu dambeysa.
Ethanol: Ethanol waa mid ka mid ah dareerayaasha inta badan loo isticmaalo ethyl cellulose. Waa diyaar si diyaar ah, oo aan qaali ahayn, waxayna muujisaa milmi wanaagsan oo loogu talagalay ethyl cellulose. Ethanol waxaa si weyn loogu isticmaalaa codsiyada dawooyinka loogu talagalay diyaarinta dahaarka, filimada, iyo matrices.
Isopropanol (IPA): Isopropanol waa dareere kale oo caan ah oo loogu talagalay ethyl cellulose. Waxay bixisaa faa'iidooyin la mid ah ethanol laakiin waxaa laga yaabaa inay bixiso siyaalo filim samaynta oo wanaagsan iyo isbeddel sare, taasoo ka dhigaysa mid ku habboon codsiyada u baahan waqtiyo qallajin degdeg ah.
Methanol: Methanol waa dareere polar kaas oo si wax ku ool ah u milmi kara ethyl cellulose. Si kastaba ha noqotee, waa mid aad loo isticmaalo sababtoo ah sunta sare ee ethanol iyo isopropanol. Methanol inta badan waxaa lagu shaqeeyaa codsiyada khaaska ah halkaas oo alaabtiisa gaarka ah looga baahan yahay.
Acetone: Acetone waa dareere kacsan oo leh milmi wanaagsan oo loogu talagalay ethyl cellulose. Waxaa caadi ahaan loo isticmaalaa codsiyada warshadaha sameynta dahaarka, dhejiska, iyo khadadka. Si kastaba ha ahaatee, acetone waxay noqon kartaa mid aad u guban karta waxaana laga yaabaa inay keento khataro badbaado haddii aan si sax ah loo maamulin.
Toluene: Toluene waa dareere aan polar ahayn oo soo bandhigaya milmayn heer sare ah oo loogu talagalay ethyl cellulose. Waxaa caadi ahaan loo isticmaalaa daaha iyo warshadaha xabagta si ay u awoodaan in ay milaan tiro balaadhan oo ah polymers, oo ay ku jiraan ethyl cellulose. Si kastaba ha ahaatee, toluene waxay leedahay walaac caafimaad iyo deegaan oo la xidhiidha isticmaalkeeda, oo ay ku jiraan sunta iyo isbeddelka.
Xylene: Xylene waa dareere kale oo aan ahayn polar kaas oo si wax ku ool ah u milmi kara ethyl cellulose. Inta badan waxaa lagu daraa dareerayaasha kale si loo hagaajiyo milanka iyo viscosity ee xalka. Sida toluene, xylene waxay keenaysaa khataro caafimaad iyo kuwo deegaan waxayna u baahan tahay in si taxadar leh loo maareeyo.
Xalalka Chlorinated (tusaale, Chloroform, Dichloromethane): Walxaha koloriin leh sida chloroform iyo dichloromethane ayaa aad waxtar ugu leh milminta ethyl cellulose. Si kastaba ha ahaatee, waxay la xiriiraan khataro caafimaad iyo deegaan oo muhiim ah, oo ay ku jiraan sunta iyo ku adkaysiga deegaanka. Walaacyadan awgood, isticmaalkooda ayaa hoos u dhacay iyagoo door bidaaya beddelaad badbaado leh.
Ethyl Acetate: Ethyl acetate waa dareere polar kaas oo milmi kara ethyl cellulose ilaa xad. Waxaa caadi ahaan loo isticmaalaa codsiyada khaaska ah halkaasoo hantideeda gaarka ah la rabo, sida samaynta foomamka qiyaasta daawada qaarkood iyo dahaarka khaaska ah.
Propylene Glycol Monomethyl Ether (PGME): PGME waa dareere polar ah oo muujiya milmi dhexdhexaad ah oo loogu talagalay ethyl cellulose. Waxaa inta badan loo isticmaalaa in lagu daro dareerayaasha kale si loo hagaajiyo milanka iyo sifooyinka filimada. PGME waxaa badanaa lagu shaqeeyaa samaynta dahaarka, khadadka, iyo xabagta.
Propylene Carbonate: Propylene carbonate waa dareere polar ah oo leh milmayn wanaagsan oo loogu talagalay ethyl cellulose. Inta badan waxaa loo isticmaalaa codsiyada khaaska ah halkaas oo sifooyinkeeda gaarka ah, sida isbeddelka hooseeya iyo barta karkarinta sare, ay faa'iido leedahay.
Dimethyl Sulfoxide (DMSO): DMSO waa dareere aprotic polar kaas oo milmi kara ethyl cellulose ilaa xad. Waxaa caadi ahaan loo isticmaalaa codsiyada dawooyinka ee awoodda ay u leedahay in ay ku milmo tiro balaadhan oo ah xeryahooda. Si kastaba ha ahaatee, DMSO waxa laga yaabaa inay soo bandhigto iswaafajinta xaddidan ee alaabta qaarkood waxayna yeelan kartaa sifooyin cuncun maqaarka ah.
N-Methyl-2-pyrrolidone (NMP): NMP waa dareere polar ah oo leh milmi sare oo loogu talagalay ethyl cellulose. Waxaa caadi ahaan loo isticmaalaa codsiyada khaaska ah halkaas oo sifooyinkeeda gaarka ah, sida barta karkarinta sare iyo sunta hoose, la rabo.
Tetrahydrofuran (THF): THF waa dareere polar ah oo muujiya milmayn heer sare ah oo loogu talagalay ethyl cellulose. Waxaa caadi ahaan loo isticmaalaa goobaha shaybaadhka ee kala dirida polymers-ka iyo falcelinta falcelinta. Si kastaba ha ahaatee, THF aad bay u gubanaysaa waxayna keenaysaa khataro badbaado haddii aan si sax ah wax looga qaban.
Dioxane: Dioxane waa dareere dabaylaha ah oo milmi kara ethyl cellulose ilaa xad. Waxaa caadi ahaan loo isticmaalaa codsiyada khaaska ah halkaasoo alaabteeda gaarka ah, sida barta karkarinta sare iyo sunta hoose, ay faa'iido u leedahay.
Benzene: Benzene waa dareere aan dabaylaha ahayn oo muujiya milmayn wanaagsan ee ethyl cellulose. Si kastaba ha ahaatee, sunta sare ee kansarka iyo kansarka awgeed, isticmaalkeeda ayaa si weyn loo joojiyay iyadoo la door bidaayo beddelaad badbaado leh.
Methyl Ethyl Ketone (MEK): MEK waa dareere polar ah oo leh milmi wanaagsan oo loogu talagalay ethyl cellulose. Waxaa caadi ahaan loo isticmaalaa codsiyada warshadaha sameynta dahaarka, dhejiska, iyo khadadka. Si kastaba ha ahaatee, MEK aad ayay u guban kartaa waxaana laga yaabaa inay keento khataro badbaado haddii aan si sax ah wax looga qaban.
Cyclohexanone: Cyclohexanone waa dareere dabaylaha ah oo milmi kara ethyl cellulose ilaa xad. Waxaa caadi ahaan loo isticmaalaa codsiyada khaaska ah halkaas oo sifooyinkeeda gaarka ah, sida barta karkarinta sare iyo sunta hoose, la rabo.
Ethyl Lactate: Ethyl lactate waa dareere polar ah oo ka soo jeeda kheyraadka dib loo cusboonaysiin karo. Waxay soo bandhigaysaa milmayn dhexdhexaad ah oo loogu talagalay ethyl cellulose waxaana badanaa loo isticmaalaa codsiyada khaaska ah halkaasoo sunta hoose iyo biodegradability ay faa'iido u leedahay.
Diethyl Ether: Diethyl ether waa dareere aan dabaylaha ahayn oo milmi kara ethyl cellulose ilaa xad. Si kastaba ha ahaatee, aad bay u kacsan tahay oo guban karta, taasoo keenaysa khataro nabdoon haddii aan si habboon loo qaban. Diethyl ether waxaa caadi ahaan loo isticmaalaa goobaha shaybaarka ee kala dirida polymers-ka iyo falcelinta falcelinta.
Eter Petroleum: Petroleum ether waa dareere aan polar ahayn oo ka soo jeeda jajabyada batroolka. Waxay muujisaa milmi xaddidan oo loogu talagalay ethyl cellulose waxaana inta badan loo adeegsadaa codsiyada khaaska ah halkaas oo la doonayo hantideeda gaarka ah.
Waxa jira dareerayaal kala duwan oo kala duwan oo diyaar u ah in lagu milmo ethyl cellulose, mid kastaa wuxuu leeyahay faa'iidooyin iyo xaddidaad u gaar ah. Doorashada dareeraha waxay ku xiran tahay arrimo kala duwan, oo ay ku jiraan shuruudaha milanka, xaaladaha habaynta, tixgelinta badbaadada, iyo walaacyada deegaanka. Waa lagama maarmaan in si taxadar leh loo qiimeeyo arrimahan oo loo doorto dareeraha ugu habboon codsi kasta oo gaar ah si loo gaaro natiijooyin wanaagsan iyadoo la hubinayo badbaadada iyo sii jirista deegaanka.
Waqtiga boostada: Mar-06-2024