Iyini indima ye-HPMC ekukhiqizeni kwe-ceramic?

Ekukhiqizeni kwe-ceramic, i-hpdroxypropyl methylcellulose (HPMC) idlala indima ebalulekile njengesengezo, ngokuyinhloko isebenza njenge-binder, isikhungo, kanye ne-ejenti yokugcinwa kwamanzi. Ukuguquguquka kwaso kwenza kube yingxenye ebalulekile ezigabeni ezahlukahlukene zokucubungula ubumba, ekubumbeni ukudonsa.

I-Binder: I-HPMC isebenza njenge-binder ngokwakha isakhiwo esinjenge-gel lapho ixutshwe namanzi. Le mpahla enamathela isiza ekubambeni izinhlayiya ze-ceramic ndawonye ngesikhathi sezinqubo ezengeziwe njengokukhishwa, ukucindezela, noma ukukhonkotha. Isiza ekugcinweni kobuqotho kanye nokwakheka kwezidumbu ze-ceramic ngaphambi kokudubula.

I-Shirener: Njengomenzeli wokuqina, i-hpmc inyusa ubuhlakani be-ceramic ukumiswa noma ukuncipha. Le mpahla ibalulekile ekusakazeni okushelelayo, lapho i-ceramic slurry idinga ukuba nokuvumelana okuthile kokuqinisekisa ukuhlanganiswa okufanayo ezikhunjini futhi kuvikele ukuxazulula izinhlayiya. Ngokulawula i-viscongiate, i-HPMC inika amandla okulawula okungcono kokusetshenziswa kwezinhlayiya ze-ceramic, okuholele kwikhwalithi yokusakaza eyenziwe ngcono.

Ukugcinwa kwamanzi: I-HPMC inamakhono amahle okugcina amanzi, okusho ukuthi ingabamba ama-molecule wamanzi ngaphakathi kwenhlanganisela ye-ceramic. Le mpahla inenzuzo ikakhulukazi ngesikhathi sokomiswa, lapho ukulahleka komswakama kudinga ukuthi kulawulwe ukuvikela ukuqhekeka, ukugoqa, noma ukushwabana okungalingani. Ngokugcina umswakama, i-HPMC iqinisekisa inqubo yokulomisa eyayilawulwa ngokwengeziwe, okuholela ekutheni kube nezinkinga zokomiswa ezifanayo nezinciphise ku-Green Ceramic Bodies.

I-Deflocculant: Ngaphezu kweqhaza layo njengoMkhulu, i-HPMC ingasebenza futhi njenge-deflocculant lapho isetshenziswa ngokuhlanganiswa nezinye izengezo ezinjenge-sodium militing. I-Deflocculants isiza ukusabalalisa izinhlayiya zobumba ze-ceramic ngokulinganayo ekumisweni, kunciphisa ukubonakala ngaphandle kokudela ukuqina. Lokhu kukhuthaza ukugeleza okungcono kokugeleza, okunika amandla okuphonsa ngokushesha noma uhlelo lokusebenza olulula lwesibili.

I-Plistic: I-HPMC ingasebenza njenge-spistizizer ekwenziweni kwe-ceramic, ithuthukisa ukusebenziseka kanye ne-plastiki yemizimba yobumba. Lokhu kuwusizo ikakhulukazi ezinhlelweni zokubumba njengokukhishwa noma ukubumba ngesandla, lapho ubumba ludinga ukuguquguquka kalula ngaphandle kokuqhekeka noma ukudwengula. Ngokuthuthukisa i-Plasticity, i-HPMC isiza ukwakheka okuhle nokubumba kwemikhiqizo ye-ceramic, okuholela emizimbeni eluhlaza eyenziwe kangcono.

I-Burnout Aid: Ngesikhathi sokudubula, izengezo ze-organic ezinjenge-HPMC ngaphansi kokuhlanganiswa, kushiye izinsalela ezingenza njenge-pore yangaphambili noma usizo ngokushiswa. Ukuwohloka okulawulwayo kwe-HPMC ngesikhathi sezigaba zokuqala zokudubula kwakha ama-voids ngaphakathi kwe-matrix ye-ceramic, kufaka isandla ku-sentering ethuthukisiwe futhi kuncishisiwe ukuncipha komkhiqizo wokugcina. Lokhu kungaba yinzuzo ekukhiqizeni ubumba lwe-porous noma ukufeza izinto ezengeziwe ezicashile.

Ukuguqulwa komhlaba: I-HPMC nayo ingasetshenziselwa ukuguqulwa komhlaba kwezinto zokwenziwa kwe-ceramic, ngcono izakhiwo ezifana nokunamathela, ukumelana komswakama, kanye nokuphikisa komhlaba. Ngokwakha ifilimu elincanyana ebusweni bemizimba ye-ceramic, i-hpmc ithuthukisa ikhwalithi ephezulu futhi ifaka izakhiwo ezithile ezifiselekayo ngaphandle kokushintsha kakhulu izimfanelo eziningi zezinto ezibonakalayo.

I-Hydroxypropylm methylcellulose (HPMC) idlala indima ehlukahlukene ekukhiqizeni i-ceramic, isebenza njenge-binder, i-ejenti yokugcinwa kwamanzi, i-deflocculant, ipulasitiki, insiza ye-burnout, ne-surnout Aid. Ukusebenza kwalo okuhlukahlukene kufaka isandla kwikhwalithi ephelele, ukucubungula, kanye nokwenza izinto zokwakha ubumba, okwenza kube yisengezo esisemqoka embonini ye-ceramics.