Umnyombo wamathayela acwebezelayo ucwebezela, okuwungqimba lwesikhumba emathayilini, okunomphumela wokuguqula amatshe abe yigolide, okunikeza izingcweti ze-ceramic ithuba lokwenza amaphethini acacile ebusweni.Ekukhiqizeni amathayela acwebezelisiwe, ukusebenza kwenqubo ye-glaze slurry ezinzile kufanele kuqhutshwe, ukuze kuzuzwe isivuno esiphezulu nekhwalithi.Izinkomba eziyinhloko zenqubo yokusebenza kwayo zihlanganisa i-viscosity, i-fluidity, ukuhlakazeka, ukumiswa, ukuhlanganisa umzimba-glaze nokushelela.Emkhiqizweni wangempela, sihlangabezana nezidingo zethu zokukhiqiza ngokulungisa indlela yokwenza izinto zobumba zobumba kanye nokwengeza ama-agent asiza amakhemikhali, abaluleke kakhulu awo: I-CMC carboxymethyl cellulose nobumba ukulungisa i-viscosity, isivinini sokuqoqwa kwamanzi kanye noketshezi, phakathi kwayo i-CMC enayo. umphumela wokuwohloka.I-sodium tripolyphosphate kanye ne-ejenti ye-liquid degumming i-PC67 inemisebenzi yokuhlakaza nokukhipha i-condensing, futhi isilondolozi siwukubulala amagciwane nama-microorganisms ukuvikela i-methyl cellulose.Ngesikhathi sokugcinwa kwesikhathi eside kwe-glaze slurry, ama-ion ku-glaze slurry namanzi noma i-methyl yakha izinto ezingancibilikiyo kanye ne-thixotropy, kanye neqembu le-methyl ku-glaze slurry liyahluleka futhi izinga lokugeleza liyehla.Lesi sihloko sidingida kakhulu indlela yokwelula i-methyl Isikhathi esisebenzayo sokuzinzisa ukusebenza kwenqubo ye-glaze slurry sithinteka kakhulu yi-methyl CMC, inani lamanzi angena ebholeni, inani le-kaolin egeziwe kwifomula, inqubo yokucubungula, kanye ukuqina.
1. Umthelela weqembu le-methyl (CMC) kuzakhiwo ze-glaze slurry
I-Carboxymethyl cellulose CMCiyinhlanganisela ye-polyanionic enokuncibilika okuhle kwamanzi etholakala ngemva kokuguqulwa kwamakhemikhali emicu yemvelo (i-alkali cellulose kanye ne-etherification agent chloroacetic acid), futhi iyi-polymer ephilayo.Ikakhulukazi sebenzisa izici zayo zokuhlanganisa, ukugcinwa kwamanzi, ukuhlakazeka kokumisiwe, nokuqaqanjiswa ukuze wenze indawo ecwebezelayo ibe bushelelezi futhi iminyene.Kunezidingo ezihlukene ze-viscosity ye-CMC, futhi ihlukaniswe ngama-viscosity aphezulu, aphakathi, aphansi, kanye nama-ultra-low.Amaqembu e-methyl aphezulu futhi aphansi-viscosity atholakala ngokuyinhloko ngokulawula ukuwohloka kwe-cellulose-okungukuthi, ukugqashuka kwamaketanga e-cellulose yamangqamuzana.Umphumela obaluleke kakhulu ubangelwa umoya-mpilo osemoyeni.Izimo zokusabela ezibalulekile zokulungiselela i-high-viscosity CMC isithiyo se-oxygen, i-nitrogen flushing, ukupholisa nokuqandisa, ukwengeza i-agent exhumanisayo kanye ne-disperant.Ngokokubhekwa kweSikimu 1, iSikimu 2, kanye neSikimu 3, kungatholakala ukuthi nakuba i-viscosity yeqembu le-low-viscosity methyl iphansi kunaleyo yeqembu le-high-viscosity methyl, ukuzinza kokusebenza kwe-glaze slurry engcono kunaleyo yeqembu le-methyl eline-viscosity ephezulu.Ngokwesimo, i-low-viscosity methyl group ine-oxidized kakhulu kuneqembu le-methyl eline-viscosity ephezulu futhi linochungechunge olufushane lwamangqamuzana.Ngokusho komqondo wokwanda kwe-entropy, yisimo esizinzile kuneqembu le-methyl eline-viscosity ephezulu.Ngakho-ke, ukuze uphishekele ukuzinza kwefomula, ungazama Ukwandisa inani lamaqembu e-methyl ane-viscosity ephansi, bese usebenzisa ama-CMC amabili ukuze uzinze izinga lokugeleza, ugweme ukushintshashintsha okukhulu ekukhiqizeni ngenxa yokungaqini kwe-CMC eyodwa.
2. Umphumela wenani lamanzi angena ebholeni ekusebenzeni kwe-glaze slurry
Amanzi kufomula ye-glaze ahlukile ngenxa yezinqubo ezahlukene.Ngokwebanga lama-38-45 amagremu wamanzi angezwe ku-100 amagremu wezinto ezomile, amanzi angakwazi ukugcoba izinhlayiya ze-slurry futhi asize ukugaya, futhi anganciphisa i-thixotropy ye-glaze slurry.Ngemva kokubheka iSikimu 3 kanye neSikimu 9, singathola ukuthi nakuba isivinini sokuhluleka kweqembu le-methyl ngeke sithikamezeke inani lamanzi, lena enamanzi amancane kulula ukuyigcina futhi ayijwayelene nemvula ngesikhathi sokusetshenziswa nokugcinwa.Ngakho-ke, ekukhiqizeni kwethu kwangempela, izinga lokugeleza lingalawulwa ngokunciphisa inani lamanzi angena ebhola.Ngenqubo yokufafaza nge-glaze, amandla adonsela phansi aphezulu kanye nokukhiqizwa kwezinga lokugeleza okuphezulu kungamukelwa, kodwa lapho sibhekene ne-spray glaze, sidinga ukwandisa inani le-methyl namanzi ngendlela efanele.I-viscosity ye-glaze isetshenziselwa ukuqinisekisa ukuthi i-glaze surface ibushelelezi ngaphandle kwempushana ngemva kokufafaza i-glaze.
3. Umthelela Wokuqukethwe kwe-Kaolin Ezimpahleni Ze-Glaze Slurry
I-Kaolin iyimaminerali evamile.Izingxenye zayo eziyinhloko amaminerali e-kaolinite kanye nenani elincane le-montmorillonite, i-mica, i-chlorite, i-feldspar, njll. Ngokuvamile isetshenziswa njenge-ejenti yokumisa i-inorganic kanye nokwethulwa kwe-alumina kuma-glaze.Ngokuya ngenqubo ye-glazing, ishintshashintsha phakathi kuka-7-15%.Ngokuqhathanisa uhlelo 3 nohlelo 4, singathola ukuthi ngokwanda kokuqukethwe kwe-kaolin, izinga lokugeleza kwe-glaze slurry liyakhuphuka futhi akulula ukuxazulula.Lokhu kungenxa yokuthi i-viscosity ihlobene nokwakheka kwamaminerali, usayizi wezinhlayiyana kanye nohlobo lwe-cation odakeni.Ngokuvamile, okuqukethwe kwe-montmorillonite ngaphezulu, izinhlayiya zicolile, i-viscosity ephakeme kakhulu, futhi ngeke ihluleke ngenxa yokuguguleka kwamagciwane, ngakho akulula ukushintsha ngokuhamba kwesikhathi.Ngakho-ke, ama-glazes adinga ukugcinwa isikhathi eside, kufanele sandise okuqukethwe kwe-kaolin.
4. Umphumela wesikhathi sokugaya
Inqubo yokuchoboza yebhola lokugaya izodala umonakalo wemishini, ukushisa, i-hydrolysis kanye nomunye umonakalo ku-CMC.Ngokuqhathanisa i-scheme 3, i-scheme 5 kanye ne-scheme 7, singathola ukuthi nakuba i-viscosity yokuqala ye-scheme 5 iphansi ngenxa yomonakalo omkhulu eqenjini le-methyl ngenxa yesikhathi eside sokugaya amabhola, ubuhle buyancipha ngenxa yezinto zokwakha. njenge-kaolin ne-talc (okucoliseka kakhulu, amandla e-ionic Anamandla, i-viscosity ephakeme) kulula ukuwagcina isikhathi eside futhi akulula ukuna.Nakuba isengezo sengezwe ngesikhathi sokugcina ohlelweni 7, nakuba i-viscosity iphakama kakhulu, ukwehluleka nakho kuyashesha.Lokhu kungenxa yokuthi uma iketango lamangqamuzana lide, kuba lula ukuthola iqembu le-methyl I-Oxygen ilahlekelwa ukusebenza kwayo.Ukwengeza, ngenxa yokuthi ukusebenza kahle kokugaya ibhola kuphansi ngoba akwengezwa ngaphambi kokunquma, ukucoleka kwe-slurry kuphezulu futhi amandla phakathi kwezinhlayiya ze-kaolin abuthakathaka, ngakho-ke i-glaze slurry ihlala ngokushesha.
5. Umphumela wama-preservatives
Ngokuqhathanisa i-Experiment 3 ne-Experiment 6, i-glaze slurry engezwe nezilondolozi zingagcina i-viscosity ngaphandle kokuncipha isikhathi eside.Lokhu kungenxa yokuthi impahla eluhlaza eyinhloko ye-CMC ingukotini ocwengekile, okuyinhlanganisela ye-polymer ephilayo, futhi ukwakheka kwayo kwebhondi ye-glycosidic kunamandla ngokuqhathaniswa ngaphansi kwesenzo sama-enzyme ebhayoloji Kulula ukwenza i-hydrolyze, iketango le-macromolecular le-CMC lizophuka ngendlela engenakuhlehliswa ukuze kwakheka ushukela. ama-molecule ngayinye.Ihlinzeka ngomthombo wamandla wama-microorganisms futhi ivumela amagciwane ukuthi azalane ngokushesha.I-CMC ingasetshenziswa njengesiqinisi sokumiswa ngokususelwa esisindweni sayo esikhulu samangqamuzana, ngakho-ke ngemva kokuba i-biodegraded, umphumela wayo wokuqala wokujiya ngokomzimba nawo uyanyamalala.Indlela yokusebenza yezivimbelakuvunda ukulawula ukusinda kwama-microorganisms ibonakala ikakhulukazi esicini sokungasebenzi.Okokuqala, iphazamisa ama-enzyme we-microorganisms, ibhubhisa i-metabolism yabo evamile, futhi ivimbele umsebenzi wama-enzyme;okwesibili, i-coagulates futhi iguqule amaprotheni e-microbial, iphazamise ukusinda nokuzala kwawo;okwesithathu, ukuvuthwa kwe-membrane ye-plasma kuvimbela ukuqedwa kanye ne-metabolism yama-enzyme ezinto zomzimba, okuholela ekungasebenzi kanye nokuguqulwa.Enqubweni yokusebenzisa ama-preservatives, sizothola ukuthi umphumela uzoba buthaka ngokuhamba kwesikhathi.Ukwengeza kumthelela wekhwalithi yomkhiqizo, sidinga futhi ukucabangela isizathu sokuthi kungani amagciwane athuthukile ukumelana nezivimbelakuvunda zesikhathi eside ezingeziwe ngokuzalanisa nokuhlola., ngakho-ke enqubweni yokukhiqiza yangempela kufanele simiselele izinhlobo ezihlukene zezilondolozi isikhathi esithile.
6. Umthelela wokulondolozwa okuvalekile kwe-glaze slurry
Kunemithombo emibili eyinhloko yokwehluleka kwe-CMC.Enye i-oxidation ebangelwa ukuthintana nomoya, kanti enye ukuguguleka kwebhaktheriya okubangelwa ukuchayeka.I-fluidity kanye nokumiswa kobisi neziphuzo esingazibona ezimpilweni zethu nazo ziqiniswa yi-trimerization kanye ne-CMC.Bavame ukuba neshelufu yokuphila cishe unyaka ongu-1, futhi okubi kakhulu yizinyanga ezi-3-6.Isizathu esiyinhloko ukusetshenziswa kwe-inactivation Sterilization kanye nobuchwepheshe bokugcina obuvaliwe, kucatshangwa ukuthi i-glaze kufanele ivalwe futhi igcinwe.Ngokuqhathaniswa kweSikimu 8 kanye neSikimu 9, singathola ukuthi i-glaze egcinwe endaweni engangenisi umoya ingagcina ukusebenza okuzinzile isikhathi eside ngaphandle kwemvula.Nakuba isilinganiso siphumela ekuchayekeni emoyeni, asihlangabezani nokulindelwe, kodwa sisenesikhathi eside kakhulu sokulondoloza.Lokhu kungenxa yokuthi nge-glaze egcinwe esikhwameni esivaliwe ihlukanisa ukuguguleka komoya kanye namagciwane futhi andise impilo yeshalofu ye-methyl.
7. Umthelela wokunganyakazi ku-CMC
Ukuqina kuyinqubo ebalulekile ekukhiqizweni kwe-glaze.Umsebenzi wayo oyinhloko ukwenza ukubunjwa kwayo kufane, kususe igesi eningi futhi kubole izinto ezithile eziphilayo, ukuze indawo ecwebezelayo ibushelelezi ngesikhathi sokusetshenziswa ngaphandle kwamaphinifa, i-concave glaze nokunye ukukhubazeka.Imicu ye-polymer ye-CMC ecekeleke phansi ngesikhathi sokugaya ibhola ixhunywa kabusha futhi izinga lokugeleza liyakhuphuka.Ngakho-ke, kuyadingeka ukuthi kumiswe isikhathi esithile, kodwa ukuqina kwesikhathi eside kuzoholela ekuzalweni kwe-microbial kanye nokwehluleka kwe-CMC, okuholela ekwehleni kwezinga lokugeleza kanye nokwanda kwegesi, ngakho-ke sidinga ukuthola ibhalansi ngokwemibandela. isikhathi, ngokuvamile amahora angu-48-72, njll. Kungcono ukusebenzisa i-glaze slurry.Ekukhiqizeni kwangempela kwefektri ethile, ngenxa yokuthi ukusetshenziswa kwe-glaze kuncane, i-blade eshukumisayo ilawulwa yikhompyutha, futhi ukulondolozwa kwe-glaze kunwetshwa imizuzu engu-30.Umgomo oyinhloko uwukwenza buthaka i-hydrolysis ebangelwa ukunyakaziswa nokushisisa kwe-CMC kanye nokukhuphuka kwezinga lokushisa Ama-microorganisms ayanda, ngaleyo ndlela andise ukutholakala kwamaqembu e-methyl.
Isikhathi sokuthumela: Jan-04-2023