Mu makampani opanga zinthu zadothi,carboxymethyl cellulose (CMC), polima wosungunuka m'madzi wochokera ku cellulose yachilengedwe. CMC yakhala chowonjezera chofunikira kwambiri popanga matupi obiriwira a ceramic ndi ma glaze chifukwa cha kukhuthala kwake, kugwirizana, kusunga madzi, kuyimitsidwa ndi kusintha kwa rheological. Imawongolera ubwino wa pamwamba ndi mphamvu yamakina ya zinthu za ceramic mwa kukonza mawonekedwe a rheological a slurry ya ceramic ndi mawonekedwe a thupi lobiriwira, ndipo ili ndi phindu lalikulu pazachuma komanso zaukadaulo.
1. Makhalidwe oyambira a CMC
Carboxymethyl cellulose ndi polima wosungunuka m'madzi wa anionic wopangidwa poyambitsa magulu a carboxymethyl (–CH₂–COOH) kukhala cellulose yachilengedwe kudzera mu etherification reaction. Makhalidwe ake akuluakulu ndi awa:
Kusungunuka kwabwino: Kutha kusungunuka mwachangu m'madzi ozizira komanso otentha kuti apange yankho lowonekera bwino la colloidal.
Kukhuthala ndi kusintha kwa rheological: CMC solution ili ndi kukhuthala kwakukulu ndipo imatha kusintha thixotropy ya ceramic slurry ndi glaze, kotero kuti imasunga kusinthasintha kwinakwake ikakhazikika ndikuwonjezera kusinthasintha pamene mphamvu yosunthika kapena yodulidwa ikugwiritsidwa ntchito.
Kusunga madzi ndi kukhazikika: CMC imatha kuchepetsa kusinthasintha kwa madzi m'matope ndi glaze, kukonza kukhazikika, ndikupewa kugawikana kapena kusokonekera.
Chitetezo ndi kuteteza chilengedwe: Chochokera ku cellulose yachilengedwe, chimawola ndipo ndi chotetezeka kugwiritsa ntchito.
2. Udindo waukulu wa CMC pakupanga zinthu zadothi
2.1. Monga chosungunula matope ndi chokhuthala
Pokonzekera zinthu zobiriwira za ceramic, CMC imatha kusintha kwambiri momwe matope amakhalira komanso momwe amakhalira. Mwa kuwonjezera kukhuthala ndi thixotropy ya matope, CMC imathandiza kufalitsa tinthu ta ceramic mofanana, kupewa mvula, komanso kuthandizira kupopera, kupopera kapena kuyika jekeseni, potero kumawonjezera kuchulukana ndi kufanana kwa thupi lobiriwira.
2.2. Monga chothandizira kupanga ndi chomangira
Pa nthawi yokonza kapena kutulutsa zinthu, CMC imatha kuwonjezera mphamvu ya pulasitiki ndi yomangira ya thupi lobiriwira, zomwe zimapangitsa kuti ikhale yosavuta kuikonza komanso kuti isasweke mosavuta. Makhalidwe ake abwino kwambiri omangira amathanso kumangirira tinthu ta ceramic panthawi youma, kulimbitsa mphamvu youma ya thupi lobiriwira, ndikuchepetsa kutayika panthawi yokonza.
2.3. Kuwongolera magwiridwe antchito a glazing
Pokonzekera glaze, CMC imatha kusintha kwambiri kukhazikika kwa glaze, kupewa kusungunuka kwa madzi ndi kusonkhana kwa madzi. Kuphatikiza apo, CMC imasintha thixotropy ya glaze, imapangitsa kuti glaze ikhale yofanana, imachepetsa kutsika, komanso imakonza mawonekedwe a pamwamba pa glaze.
2.4. Kusunga madzi ndi kukana ming'alu
CMC imatha kutseka bwino chinyezi mu slurry ndi glaze, kuchepetsa kuuma, ndikuchepetsa chiopsezo cha ming'alu ndi kupindika pamwamba pa thupi. Izi ndizofunikira kwambiri pazinthu zazikulu kapena zopyapyala zadothi, zomwe zimathandiza kukweza kuchuluka kwa zinthuzo.
2.5. Konzani ubwino wa pamwamba pa chinthu
Mwa kupititsa patsogolo kufalikira kwa tinthu tating'onoting'ono ta thupi ndi kufanana kwa glazing, CMC imapangitsa kuti pamwamba pa zinthu zadothi zoyaka moto zikhale zosalala komanso zofewa, pomwe zimachepetsa kuwonongeka kwa zinthu monga mabowo ndi thovu.
3. Kugwiritsa ntchito CMC m'njira zosiyanasiyana zadothi
Zoumba zadothi za tsiku ndi tsiku: zimawonjezera kusinthasintha kwa madzi ndi mphamvu ya thupi, komanso zimachepetsa kusintha kwa makwinya ndi ming'alu panthawi yowuma ndi kuwombera.
Zomangira zadothi (matailosi a ceramic, matailosi a pakhoma, matailosi a pansi): Kukonza kufanana kwa ma glazing ndi ubwino wa glazing, ndikuwonjezera kuchuluka kwa zokolola.
Zoumba zapadera: Popanga zoumba zapamwamba monga zoumba zamagetsi ndi zoumba zogwira ntchito, CMC imagwiritsidwa ntchito kuwongolera kufalikira kwa tinthu ndikuwonjezera mphamvu zobiriwira.
Kusindikiza kwa 3D kwa Ceramic: Monga chowongolera ndi chomangira mafupa, kumathandiza kupeza kukhuthala koyenera kwa slurry ndi kulondola kwa kusindikiza.
4. Zinthu zomwe zimakhudza zotsatira za CMC
Mlingo wa kusintha (DS): Mlingo wa kusintha kwa carboxymethyl pa mamolekyu a CMC nthawi zambiri umakhala pakati pa 0.6–1.2. DS ikakwera, CMC imasungunuka bwino komanso imakhuthala bwino.
Kulemera kwa mamolekyulu ndi kukhuthala: Kukhuthala kwakukulu kwa CMC kumapereka mphamvu yosunga madzi ndi kukhuthala, koma kungayambitse kuchepa kwa madzi oundana; kalasi yoyenera iyenera kusankhidwa malinga ndi zofunikira pa ndondomekoyi.
Kuchuluka kwa CMC yowonjezera pakupanga kwa ceramic ndi 0.1–0.5% ya kulemera kwa slurry, komwe kuyenera kukonzedwa bwino kudzera mu zoyeserera.
Njira yosungunula ndi kufalikira: CMC iyenera kusungunuka kwathunthu poyambitsa kusakaniza kwakukulu kuti isagwirizane kuti ipeze zotsatira zabwino kwambiri.
5. Ubwino wa chilengedwe ndi zachuma
CMC imachokera ku cellulose yachilengedwe, imatha kuwonongeka bwino komanso kukhala yotetezeka, ndipo imakwaniritsa zofunikira zoteteza chilengedwe zomwe makampani amakono a ceramic amafunikira. Kuphatikiza apo, mphamvu yowonjezera ya CMC imatha kuchepetsa kugwiritsa ntchito mphamvu, kufupikitsa nthawi youma ndikuchepetsa kuchuluka kwa zinyalala, motero kumawonjezera magwiridwe antchito opanga komanso phindu lazachuma.
Mu makampani opanga zinthu zadothi,CMC (carboxymethyl cellulose) ndi chinthu chofunikira kwambiri chowonjezeraZimathandiza zinthu zadothi kukhala zapamwamba komanso zogwira mtima kwambiri popanga zinthu mwa kukonza matope ndi glaze, kukonza mphamvu yolumikizirana komanso mphamvu youma ya thupi, komanso kukonza bwino momwe glaze imagwirira ntchito. Popeza makampani opanga ceramic akuyesetsa kuteteza chilengedwe chobiriwira komanso kupanga zinthu zabwino kwambiri, mwayi wogwiritsa ntchito CMC udzakhala wokulirapo.
Nthawi yotumizira: Julayi-28-2025