Carboxymethylcellulose (CMC) iyo methylcellulose (MC) waa labadaba asal ahaan cellulose, polymer dabiici ah oo laga helo gidaarada unugyada dhirta.Alaabooyinkan ayaa si weyn looga isticmaalo warshado kala duwan iyadoo ay ugu wacan tahay sifooyinkooda gaarka ah.In kasta oo la wadaago waxyaabaha la midka ah, CMC iyo MC waxay leeyihiin kala duwanaansho kala duwan qaab dhismeedka kiimikada, guryaha, codsiyada, iyo isticmaalka warshadaha.
1.Qaabka Kiimikada:
Carboxymethylcellulose (CMC):
CMC waxaa lagu farsameeyaa etherification of cellulose leh chloroacetic acid, taasoo keentay in la beddelo kooxaha hydroxyl (-OH) on laf dhabarta cellulose kooxaha carboxymethyl (-CH2COOH).
Heerka beddelka (DS) ee CMC waxa ay tilmaamaysaa tirada celceliska ee kooxaha karboksymethyl unugga gulukooska ee silsiladda cellulose.Halbeeggaan ayaa go'aamiya sifooyinka CMC, oo ay ku jiraan milanka, viscosity, iyo dabeecadda rheological.
Methylcellulose (MC):
MC waxaa soo saaray beddelka kooxaha hydroxyl ee cellulose leh kooxaha methyl (-CH3) iyada oo loo marayo etherification.
Si la mid ah CMC, sifooyinka MC waxaa saameeya heerka beddelka, taas oo go'aamisa xadka methylation ee silsiladda cellulose.
2.Maskaxda:
Carboxymethylcellulose (CMC):
CMC waxay ku milmaysaa biyaha waxayna samaysaa xal hufan oo muuqda.
Solubility keedu waa pH-ku-tiirsan, oo leh milmayn sare xaaladaha alkaline.
Methylcellulose (MC):
MC sidoo kale waa ku milmay biyaha, laakiin milmayntoodu waxay ku xidhan tahay heerkulku.
Marka lagu milmo biyo qabow, MC waxay samaysaa jel, kaas oo si kale u milma marka la kululeeyo.Gurigan wuxuu ka dhigayaa mid ku habboon codsiyada u baahan gelitaanka la kantaroolo.
3. Viscosity:
CMC:
Waxay muujisaa viscosity sare ee xalalka aqueous, ka qaybqaata sifooyinka dhumucdeeda.
Viscosity-keeda waxa lagu beddeli karaa iyadoo la hagaajinayo arrimo ay ka mid yihiin fiirsashada, heerka beddelka, iyo pH.
MC:
Wuxuu muujiyaa habdhaqanka viscosity ee la mid ah CMC laakiin guud ahaan wuu ka yar yahay mawduucyada.
Viscosity ee xalalka MC sidoo kale waxaa lagu xakameyn karaa iyadoo la beddelo cabbirrada sida heerkulka iyo xoogga.
4.Flimka Samaynta:
CMC:
Wuxuu sameeyaa filimo cad, oo dabacsan marka laga soo tuuray xalalkeeda biyaha.
Filimadani waxay codsiyo ka helaan warshadaha sida baakadaha cuntada iyo dawooyinka.
MC:
Sidoo kale awood u leh sameynta filimada laakiin waxay u egtahay inay aad u jajaban tahay marka loo eego filimada CMC.
5. Warshadaha Cuntada:
CMC:
Si ballaaran loogu isticmaalo xasiliye ahaan, dhumuc weyn, iyo emulsifier ee alaabta cuntada sida jalaatada, suugada, iyo dhaymada.
Awooddeeda ay ku beddesho nuxurka iyo dareenka afka ee alaabta cuntada ayaa ka dhigaysa mid qiimo leh hababka cuntada.
MC:
Loo isticmaalo ujeedooyin la mid ah sida CMC ee alaabta cuntada, gaar ahaan codsiyada u baahan samaynta jel iyo xasilinta.
6. Daawooyinka:
CMC:
Looga faa'iidaystay habaynta dawooyinka sidii xidhe, kala daadsan, iyo wax ka beddelka galmoodka ee soo saarista kiniinka.
Sidoo kale waxaa lagu shaqaaleysiiyay hababka la mariyo sida kiriimyada iyo jeelka sababtoo ah sifooyinka rheological.
MC:
Caadi ahaan loo isticmaalo sida dhumucdiye iyo wakiilka jelling ee daawooyinka, gaar ahaan daawooyinka dareeraha afka iyo xalalka indhaha.
7.Alaabooyinka Daryeelka Shakhsi ahaaneed:
CMC:
Laga helay waxyaabo kala duwan oo shakhsi ah sida daawada cadayga, shaambo, iyo kareemyo sida xasiliyayaal iyo wakiil dhumuc leh.
MC:
Loo isticmaalo codsiyada la midka ah sida CMC, ka qayb qaadashada qaab-dhismeedka iyo xasilloonida qaababka daryeelka shakhsi ahaaneed.
8. Codsiyada Warshadaha:
CMC:
Ka shaqeeya warshadaha sida dunta, xaashida, iyo ceramics awooddeeda inay u dhaqmaan sidii xidhe, rheology beddele, iyo wakiilka biyaha haynta.
MC:
Hela isticmaalka qalabka dhismaha, rinjiyada, iyo xabagta sababtoo ah dhumucdooda iyo sifooyinkooda.
halka carboxymethylcellulose (CMC) iyo methylcellulose (MC) ay yihiin labada derivatives cellulose leh codsiyada warshadaha kala duwan, waxay muujiyaan kala duwanaansho in qaab-dhismeedka kiimikada, dabeecadaha milmay, profiles viscosity, iyo codsiyada.Fahamka kala duwanaanshahan ayaa muhiim u ah doorashada soosaar ku habboon isticmaalka gaarka ah ee warshado kala duwan, laga bilaabo cuntada iyo dawooyinka ilaa daryeelka shakhsi ahaaneed iyo codsiyada warshadaha.Haddi ay tahay baahida loo qabo dhumucda pH-xasaasi ah sida CMC ee alaabta cuntada ama wakiilka gelling-ka heerkulka ka jawaaba sida MC ee qaabaynta dawooyinka, mid kasta oo ka mid ah soosaaruhu wuxuu bixiyaa faa'iidooyin gaar ah oo ku habboon shuruudaha gaarka ah ee qaybaha kala duwan.
Waqtiga boostada: Mar-22-2024