I-Methylcelculose (mc) kunye ne-carboxymethylcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelcelose Nangona zonke zitshintshiwe ngekhemikhali kwi-sellyulose yendalo, kukho umahluko obonakalayo kwimo yemichiza, iipropathi zomzimba kunye neekhemikhali, kunye nokusetyenziswa.
I-1. Ubume kunye nenkqubo yokulungiselela
I-methylcelfulose iveliswa ngokuphendula ngeselfowuni kunye ne-methyl chloride (okanye i-methanol) phantsi kweemeko ze-Alkaline. Ngeli candelo, icandelo lamaqela e-hydroxyl (--) kwimolekyuli eselfowuni itshintshwa ngamaqela e-Accords (-och₃) ukwenza i-methylcelgulose. Inqanaba lokufakwa endaweni
I-carboxeymethylcelcelcelcelose iveliswa ngokuphendula ngesellulose nge-hlorocetic acid phantsi kweemeko ze-ALKALIIN, kunye neqela le-hydroxyl litshintshwa yi-carboxymethyl (-ch₂cooh). Inqanaba lokufaka endaweni ye-Polymerization (DP) ye-CMC ichaphazela ukulimala kwalo kunye nohlobo lwe-viscosity emanzini. I-CMC idla ngokukhona kwifom yetyuwa yesodium, ebizwa ngokuba yiSodium Carxymmethylcelcelcelcelcelcelcelose (neacmc).
I-2. Iipropathi zomzimba kunye neekhemikhali
Ukuluka: IMethylcelceluplose inyibilikisa emanzini ebandayo, kodwa iphulukana nomoya kwaye iyenza ijeli emanzini ashushu. Ukuphindaphindiswa kwe-shirmal kwenza ukuba isetyenziselwe iarhente kunye nearhente yegqwetha ekuqhubeni ukutya. I-CMC inyibiliza kumanzi obandayo ashushu, kodwa i-viscomosity yesisombululo incipha njengoko iqondo lobushushu liyanda.
I-Viskosity: UVekyusi omabini achaphazeleka sisidanga sokufaka endaweni kunye nesisombululo. Ukugcinwa kwe-MC kuqala kunyuka emva koko kuncipha njengoko iqondo lobushushu liyanda, ngelixa i-viscosity ye-CMC iyancipha njengoko ubushushu bunyuka. Oku kubanika izibonelelo zabo kwizicelo ezahlukeneyo zemveliso.
I-PHIACE: I-CMC ihlala izinzile ngaphezulu kwe-PH ye-PH, ngakumbi phantsi kweemeko ze-alkaline, eyenza ithandwa kakhulu njenge-sticker kunye ne-tickener ekutyeni kunye namayeza. I-MC ihlala ingathathi hlangothi kwaye incinci kakhulu i-alkaline, kodwa iya kuphelisa i-acid eyomeleleyo okanye i-alkalis.
3. Iindawo zesicelo
Ishishini lokutya: I-methylcelcelculose isetyenziswa ngokutya njenge-thi churner, i-emulsifier kunye nokuzinza. Umzekelo, inokukulinganisa incasa kunye nokuthungwa kwamafutha xa ivelisa ukutya okuphantsi kwamafutha. I-carboxeymethylcelcelcelcelse isetyenziswe ngokubanzi kwiziselo, iimpahla ezibhakiweyo kunye neemveliso zobisi njenge-gickener kunye ne-stickener kunye nokuzinzisa ukunqanda ukwahlulwa kwamanzi kunye nokuphucula incasa.
Ishishini lamachiza: I-methylcelculose isetyenziswa kumalungiselelo eepilisi zamayeza njenge-Binder kwaye i-arhergranti, kwaye i-orhergranti yeliso kunye ne-Ophthalmic eyehlayo. I-CMC isetyenziswa ngokubanzi kumayeza ngenxa ye-bimoMPini yayo elungileyo, njengokulungiselela iziyobisi ezinzileyo kunye nee-adhesseves kwi-quep yamehlo.
Impahla yokwakha kunye nekhemikhali: I-MC isetyenziswa ngokubanzi kwizinto zokwakha njenge-gickerer, iarhente yokugcina amanzi kwaye inamathele kwisamente kunye neGypsum. Ingaphucula intsebenzo yokwakha kunye nomgangatho wezinto ezingaphezulu komhlaba. I-CMC ihlala isetyenziswa kunyango lod kwimigodi ye-oyile, i-slirry kwi-Tepry Pripy kunye neDineng, indawo yokuHlala ePhezulu, njl.
I-4. Ukhuseleko lwendalo
Zombini zithathwa njengezikhuselekileyo ukuze zisetyenziswe ekutyeni nasekutyeni amayeza, kodwa imithombo yazo kunye neenkqubo zemveliso zinokuba neempembelelo ezahlukileyo kwindalo esingqongileyo. Izinto ezingafunekiyo ze-MC kunye ne-CMC zivela kwi-seluplose yendalo kwaye ziyakwazi ukwenza i-biodegraded, ke ziqhuba kakuhle ngokwesiseko sokusingqongileyo. Nangona kunjalo, inkqubo yabo yemveliso inokubandakanya izicoci zekhemikhali kunye neerejista, ezinokuba nefuthe elithile kwindalo esingqongileyo.
I-5. Ixabiso kunye nemfuno yentengiso
Ngenxa yeenkqubo ezahlukeneyo zemveliso, iindleko zemveliso ze-methylcelculose zihlala ziphezulu, ke ixabiso layo lentengiso likwangaphezulu kwe-carboxymethylcelose. I-CMC ngokubanzi inemfuno enkulu yentengiso ngenxa yesicelo sayo kunye neendleko ezisezantsi zemveliso.
Nangona i-methylcelculose kunye ne-carboxymethylcelcelcelcelcelcelcelces zimbini izahlulo zeselulose, zinomahluko obalulekileyo kwisakhiwo, iipropathi, izicelo kunye nemfuno yentengiso. I-methylcelculose isetyenziswa ikakhulu kwimimandla yokutya, amayeza kunye nezinto zokwakha ngenxa yokuphinda kwenzeke kwakhona kunye nolawulo oluphezulu. I-carboxeymethyl seluplose isetyenziswe ngokubanzi ekutyeni, amayeza, ipetrochemical, ipetroli kunye namanye amashishini ngenxa yothumo oluhle kakhulu, uhlengahlengiso lwe-viscosity kunye nokuguquguquka kwe-viscosity kunye nokuguquguquka kwe-viscosity. Ukukhetha kweSeluplose kuxhomekeke kwimeko ethile yesicelo kunye neemfuno.
IXESHA LOKUQALA: AUG-20-2024