01. Izakhiwo ze-sodium carboxymethylcellellulose
I-sodium carboxymetyl celtulose iyi-anionic polymer eledylyte. Izinga lokufaka esikhundleni sezentengiselwano ama-CMC amabanga ukusuka ku-0.4 kuye ku-1,2. Ngokuya ngobumsulwa, ukubukeka kumhlophe noma okumhlophe-okumhlophe okumhlophe.
1. I-viscosity yesixazululo
I-viscosity yesisombululo esinamanzi e-CMC inyuka ngokushesha ngokwanda kokuhlushwa, futhi isixazululo sinezici zokugeleza kwe-Pseudoplastic. Izixazululo ezinezinga eliphansi lokufakwa esikhundleni (DS = 0.4-0.7) zivame ukuba ne-Thixotropy, futhi ukubonwa okusobala kuzoshintsha lapho i-shear isetshenziswa noma isuswe kwikhambi. I-viscosity yesisombululo esinamanzi e-CMC iyancipha ngokuthuthuka okuthuthukile, futhi lo mphumela uyaphindisela lapho izinga lokushisa lingadluli ku-50 ° C. Emazingeni okushisa aphezulu isikhathi eside, i-CMC izokudambisa. Lesi yisizathu esenza ukuthi i-glaze eshaye ilula ukuguqula imhlophe futhi iwohloka lapho ukuphrinta amaphethini we-file elincanyana.
I-CMC esetshenziselwa i-glaze kufanele ikhethe umkhiqizo ngezinga eliphakeme lokufaka esikhundleni, ikakhulukazi i-glaze yokopha.
2. Umphumela wenani le-PH ku-CMC
I-Viscosity ye-CMC ACED HOLLISE ihlala iyinto evamile ebangeni elibanzi le-PH, futhi lizinze kakhulu phakathi kwe-PH 7 no-9. NgoPh
Inani liyancipha, futhi i-CMC iphenduka kusuka kufomu likasawoti libe yifomu le-acid, elingenakufakwa emanzini kanye namanzi. Lapho inani le-PH lingaphansi kuka-4, iningi lefomu likasawoti liphenduka libe yifomu le-acid kanye ne-precipitates. Lapho i-PH ingaphansi kwe-3, izinga lokufaka esikhundleni lingaphansi kwe-0,5, futhi lingashintsha ngokuphelele kusuka kwifomu likasawoti liye kwifomu le-acid. Inani le-PH lokuguqulwa okuphelele kwe-CMC elinezinga eliphakeme lokufakwa esikhundleni (ngenhla kwe-0.9) lingaphansi kwe-1. Ngakho-ke, zama ukusebenzisa i-CMC ngezinga eliphakeme lokufakwa esikhundleni se-blaze ye-seeage.
3. Ubudlelwano phakathi kwe-CMC ne-Metal Ions
I-Monosongent Metal Ion ingakha amatshe ancibilikisiwe amanzi nge-CMC, engeke ithinte i-viscosity, ukucaca kanye nezinye izakhiwo zesisombululo esinamanzi, kepha i-AG + ihlukile, okuzokwenza ikhambi libe yikhambi. I-waltalent yensimbi i-ion, njengeBa2 +, FE2 +, PB2 +, SN2 +, njll. I-CA2 +, MG2 +, MN2 +, njll. Akunamthelela kwikhambi. I-Trivallent Metal Ion yakha usawoti we-insoluble nge-CMC, noma i-precipitate noma i-gel, ngakho-ke i-forric chloride ayikwazi ukuqina nge-CMC.
Kukhona ukungaqiniseki emthethweni wokubekezelela usawoti we-CMC:
(1) Kuhlobene nohlobo lukasawoti wensimbi, inani le-PH lekhambi kanye nezinga lokufaka esikhundleni se-CMC;
(2) Kuhlobene ne-oda lokuxuba nendlela ye-CMC nosawoti.
I-CMC enezinga eliphakeme lokufaka esikhundleni linokuhambisana okungcono nosawoti, kanye nomphumela wokungeza usawoti kwikhambi le-CMC kungcono kunalemanzi anosawoti.
I-CMC ilungile. Ngakho-ke, lapho ulungiselela i-osmotic glaze, ngokuvamile chitha i-CMC emanzini kuqala, bese ufaka isisombululo sikasawoti we-osmotic.
02. Ungayibona kanjani i-CMC emakethe
Ihlukaniswe ngobumsulwa
Ibanga eliphakeme lokuhlanzeka - okuqukethwe kungaphezulu kwama-99,5%;
Ibanga elihlanzekile lezimboni - okuqukethwe kungaphezulu kwama-96%;
Umkhiqizo ongahluziwe - okuqukethwe kungaphezulu kwama-65%.
Ihlukaniswe ngokubona
Uhlobo oluphezulu lwe-Viscosity - I-1% yesixazululo solution ingaphezulu kwe-5 PA;
Uhlobo lwe-Viscosity Medium - I-Viscosity yesisombululo esingu-2% ingaphezulu kwe-5 PA;
Uhlobo lwe-Viscosity ephansi - 2% isixazululo isixazululo esingenhla kwe-0.05 papa.
03. Ukuchazwa kwamamodeli ajwayelekile
Umenzi ngamunye unemodeli yawo, kuthiwa kunezinhlobo ezingaphezu kuka-500. Imodeli evame kakhulu iqukethe izingxenye ezintathu: x-y-z.
Incwadi yokuqala imele ukusetshenziswa kwemboni:
F - Ibanga lokudla;
Mina - ibanga lezimboni;
C - Ibanga le-Ceramic;
O - Ibanga le-petroleum.
Incwadi yesibili imelela izinga lokubona:
H - I-Viscosity ephezulu
M - I-Medium Viscosity
L - ukubonakala okuphansi.
Incwadi yesithathu imelela izinga lokufaka esikhundleni sokufaka esikhundleni, futhi inombolo yayo ihlukaniswe yi-10 ubude bangempela bokufaka esikhundleni se-CMC.
Isibonelo:
Imodeli ye-CMC yi-FH9, okusho ukuthi i-CMC enebanga lokudla, ukubonakala okuphezulu nokufaka esikhundleni se-0.9.
Imodeli ye-CMC yi-CM6, okusho ukuthi i-CMC yebanga le-ceramic, i-medium vistuality kanye nokufaka esikhundleni se-0.6.
Ngokulandelana, kukhona amamaki asetshenziswa kwezokwelapha, izindwangu kanye nezinye izimboni, ezingatholakali kakhulu ekusebenziseni imboni ye-ceramic.
04. Amazinga wokukhetha imboni ye-Ceramic
1. Ukuqina kwe-Viscosity
Lesi yisimo sokuqala sokukhetha i-CMC ye-glaze
(1) I-Viscosity ayiguquki kakhulu nganoma yisiphi isikhathi
(2) I-Viscosity ayiguquki kakhulu ngokushisa.
2. I-Thixotropy encane
Ekwenziweni kwamathayili acwebezelayo, i-glaze slurry ayinakuba yi-thixotropic, ngaphandle kwalokho izothinta ikhwalithi yendawo ekhazimulayo, ngakho-ke kungcono ukukhetha i-CMC yebanga lokudla. Ukuze unciphise izindleko, abanye abakhiqizi basebenzisa i-CMC ye-Industrial-Grade CMC, kanti ikhwalithi ye-glaze iyathinteka kalula.
3. Naka indlela yokuhlola i-viscosity
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(2) Nakisisa ukufana kwesisombululo se-CMC. Indlela yokuhlola eqinile ukushukumisa ikhambi amahora amabili ngaphambi kokulinganisa ukubonana kwalo;
(3) izinga lokushisa linethonya elikhulu ekubonakaleni, ngakho-ke kufanele kubhekwe ekushiseni okukhona ngesikhathi sokuhlolwa;
(4) Nakisisa ukugcinwa kwekhambi le-CMC ukuvikela ukonakala kwalo.
(5) Naka umehluko phakathi kokuvunywa kanye nokuvumelana.
Isikhathi sePosi: Jan-05-2023