Hydroxypropyl Methyl Cellulose ya Ceramics
Hydroxypropyl methyl cellulose (HPMC) ndi polima wosungunuka m'madzi yemwe amagwiritsidwa ntchito kwambiri m'makampani a ceramics. HPMC ndi mtundu wosinthidwa wa cellulose, womwe umachokera ku ulusi wa zomera. Amagwiritsidwa ntchito kwambiri ngati binder, thickener, ndi suspending wothandizira mu ceramic formulations.
M'makampani a ceramics, HPMC imagwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikiza zomatira matailosi a ceramic, glaze za ceramic, ndi mapangidwe a thupi la ceramic. HPMC imadziwika chifukwa cha kusungirako madzi kwabwino kwambiri, zomwe zimapangitsa kukhala chisankho chabwino pamapulogalamuwa.
Ubwino umodzi wogwiritsa ntchito HPMC muzopanga za ceramic ndikutha kuwongolera magwiridwe antchito ndikuchepetsa kusweka. HPMC imagwira ntchito ngati thickener ndi binder, zomwe zimathandiza kuti tinthu tating'ono ta ceramic tiyimitsidwe popanga. Izi zimachepetsa chiopsezo chokhazikika kapena kulekanitsa, zomwe zingayambitse kuyanika kosagwirizana ndi kusweka panthawi yowombera. Kuphatikiza apo, HPMC imatha kukonza pulasitiki ndi magwiridwe antchito a kapangidwe ka ceramic, kupangitsa kuti ikhale yosavuta kugwira komanso mawonekedwe.
Phindu lina la HPMC muzoumba ndi luso lake lothandizira kumamatira komanso kukana madzi. HPMC imapanga filimu pamwamba pa tinthu tating'onoting'ono ta ceramic, zomwe zingathandize kupititsa patsogolo kumamatira kwawo ku gawo lapansi. Kuonjezera apo, filimuyi ikhoza kupereka chotchinga cha madzi, chomwe chimathandiza kupititsa patsogolo kukana kwa madzi kwa mankhwala omalizidwa a ceramic.
HPMC amadziwikanso chifukwa biodegradability ndi chitetezo. Ndi chinthu chopanda poizoni komanso chosakwiyitsa chomwe chimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana. Izi zimapangitsa kukhala chisankho chabwino pamapangidwe a ceramic omwe adzagwiritsidwe ntchito mosiyanasiyana, kuphatikiza omwe angakumane ndi chakudya kapena madzi.
Komabe, ndikofunika kuzindikira kuti ntchito ya HPMC mu ceramic formulations angakhudzidwe ndi zinthu zosiyanasiyana, kuphatikizapo tinthu kukula ndi mawonekedwe a ceramic particles, pH ndi kutentha kwa chiphunzitso, ndi enieni katundu wa HPMC. . Opanga amayenera kuganizira mozama izi posankha giredi yoyenera ndi kuchuluka kwa HPMC pamapangidwe awo a ceramic.
Mwachidule, HPMC ndi polima yosungunuka m'madzi yomwe imagwiritsidwa ntchito kwambiri pamafakitale a ceramics. Makhalidwe ake osungira madzi, kuthekera kowongolera magwiridwe antchito ndikuchepetsa kusweka, komanso kuthekera kowongolera kumamatira ndi kukana madzi kumapangitsa kukhala chisankho choyenera pazinthu zambiri za ceramic. Komabe, opanga ma formula ayenera kudziwa zoperewera zake ndikuwonetsetsa kuti ndizoyenera kugwiritsa ntchito mwapadera asanaziphatikize mu kapangidwe ka ceramic.
Nthawi yotumiza: Feb-14-2023