Waa maxay hababka lagu milo ether cellulose?

Waa maxay hababka lagu milo ether cellulose?

Kala dirida ether-ka cellulose waxay noqon kartaa tallaabo muhiim u ah warshadaha kala duwan sida dawooyinka, cuntada, dunta, iyo dhismaha.Eter-ka cellulosesi weyn ayaa loo isticmaalaa iyadoo ay ugu wacan tahay sifooyinkooda sida dhumucdooda, xidhidhiyaha, samaynta filimada, iyo xasilinta. Si kastaba ha ahaatee, ku milmi la'aantooda xalal badan oo caadi ah ayaa keeni kara caqabado. Dhowr habab ayaa la sameeyay si loo milo ethers cellulose si wax ku ool ah.

Xalalka dabiiciga ah:

Aalkolada: Khamriga hoose ee miisaanka kellika ah sida ethanol, methanol, iyo isopropanol waxay milmi karaan ethers cellulose ilaa xad. Si kastaba ha ahaatee, waxaa laga yaabaa inaysan ku habboonayn dhammaan noocyada ether-ka cellulose waxayna u baahan karaan heerkul sare.
Isku-dhafka Ether-Alcohol: Isku-dhafka diethyl ether iyo ethanol ama methanol ayaa inta badan loo isticmaalaa in lagu milo ethers cellulose. Walxahani waxay bixiyaan milmi wanaagsan waxaana badanaa lagu isticmaalaa goobaha shaybaadhka.
Ketones: Qaar ka mid ah ketones sida acetone iyo methyl ethyl ketone (MEK) waxay milmi karaan noocyo gaar ah oo ethers cellulose ah. Acetone, gaar ahaan, ayaa si ballaaran loo isticmaalaa sababtoo ah qiimo jaban iyo waxtarkeeda.
Esters: Esters sida ethyl acetate iyo butyl acetate waxay si wax ku ool ah u milmi karaan ethers cellulose. Si kastaba ha ahaatee, waxaa laga yaabaa inay u baahdaan kuleyl si loo gaaro kala diri buuxda.

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Xalka Biyaha:

Xalalka Alkaline: Ethers Cellulose waxaa lagu milmi karaa xalalka alkaline sida sodium hydroxide (NaOH) ama potassium hydroxide (KOH). Xalalkani waxay hydrolyzize ethers cellulose si ay u sameeyaan cusbada biraha alkali, kuwaas oo milmay.
Xalalka Ammonia: Xalalka Ammonia (NH3) ayaa sidoo kale loo isticmaali karaa in lagu milo ethers cellulose iyadoo la samaynayo cusbada ammonium ee etherka.
Xalalka Urea Hydroxyalkyl: Xalalka urea Hydroxyalkyl, sida urea hydroxyethyl ama hydroxypropyl urea, waxay si wax ku ool ah u milmi kartaa ethers-ka cellulose, gaar ahaan kuwa leh heerar hoose oo beddelaad ah.

Dareeraha Ionic:

Dareeraha Ionic waa cusbo dabiici ah oo dareere ah heerkul aad u hooseeya, oo badanaa ka hooseeya 100 ° C. Qaar ka mid ah dareerayaasha ionic ayaa la ogaaday inay milaan ethers cellulose si hufan iyada oo aan loo baahnayn xaalado adag. Waxay bixiyaan faa'iidooyin ay ka mid yihiin isbeddel yar, xasilloonida kulaylka sare, iyo dib-u-warshadaynta.

Nidaamyada Kala Duwan:

Isku darka dareerayaasha kala duwan waxay mararka qaarkood kor u qaadi kartaa milanka ethers cellulose. Tusaale ahaan, isku dhafka biyaha leh isku-darka isku-darka ah sida dimethyl sulfoxide (DMSO) ama N-methyl-2-pyrrolidone (NMP) waxay hagaajin karaan sifooyinka kala dirida.
Fikradda Halbeegga Halbeegga ee Hansen Solubility waxaa inta badan loo shaqeeyaa si loo naqshadeeyo habab dareere isku dhafan oo wax ku ool ah si loo milo ethers cellulose iyadoo la tixgelinayo cabbirrada milanka dareerayaasha shakhsi ahaaneed iyo isdhexgalka.

Hababka Jirka:

Shearing Mechanical: Isku qas High-xiirid ama sonication caawin kara in kala firdhiyo ethers cellulose ee dareerayaasha iyo hagaajinta Kinetics kala diri.
Xakamaynta heerkulka: Heerkulka sare wuxuu badanaa kor u qaadi karaa milanka ethers cellulose ee dareerayaasha qaarkood, laakiin waa in taxaddar la sameeyaa si looga fogaado hoos u dhaca polymerka.

Wax ka Beddel Kiimiko:

Xaaladaha qaarkood, wax ka beddelka kiimikada ee ethers cellulose waxay hagaajin kartaa sifooyinkooda milanka. Tusaale ahaan, soo bandhigida kooxaha hydrophobic ama kordhinta heerka beddelka waxay ka dhigi kartaa ether-ka cellulose mid ku milma dareerayaasha organic.

Micellar Solutions:

Surfactants waxay samayn karaan miceles xal, kuwaas oo milmi karaethers cellulose. Marka la hagaajiyo feejignaanta dusha sare iyo xaaladaha xalka, waxaa suurtagal ah in si wax ku ool ah loo milo ethers cellulose.
Gebogebadii, doorashada habka loo kala diro ethers cellulose waxay ku xiran tahay arrimo ay ka mid yihiin nooca cellulose ether, milanka la rabo, tixgelinta deegaanka, iyo codsiga loogu talagalay. Hab kastaa wuxuu leeyahay faa'iidooyin iyo xaddidaadkiisa, cilmi-baarayaashu waxay sii wadaan inay sahamiyaan habab cusub si loo hagaajiyo kala dirida ethers cellulose ee dareerayaasha kala duwan.


Waqtiga boostada: Abriil-06-2024