Hydroxypropyl methylcellulose (HPMC) ninyongera kandi yingirakamaro mugukora ubukorikori bwubuki. Ubuki bwa Honeycomb burangwa nuburyo bwihariye bwimiyoboro ibangikanye, itanga ubuso burebure hamwe nigabanuka ryumuvuduko muke, bigatuma biba byiza mubikorwa nka catalitike ihindura, muyungurura, no guhana ubushyuhe. HPMC, inkomoko ya selulose ether, igira uruhare runini mugukora aya mafumbire, bigira ingaruka kubitunganya, imiterere, n'imikorere yibicuruzwa byanyuma.
Ibyiza bya HPMC
HPMC ikomoka kuri selile, polymer karemano cyane, binyuze mumihindagurikire yimiti itangiza hydroxypropyl na methyl. Ihinduka ryongera imbaraga za solulose ether mumazi no mumashanyarazi, kandi bigira ingaruka kumiterere ya rheologiya ya HPMC. Ibintu by'ingenzi bya HPMC birimo:
Thermoplastique: HPMC irashobora gukora firime na geles iyo bishyushye, bifite akamaro muguhuza no gukora ceramics.
Kubika Amazi: Ifite ubushobozi bwo gufata amazi menshi, ningirakamaro mukubungabunga ubuhehere muri paste ceramic.
Guhindura Rheologiya: Ibisubizo bya HPMC byerekana imyitwarire ya pseudoplastique, bivuze ko bitagaragara neza bitewe no guhagarika umutima, bifasha mu gushiraho no gusohora ibikoresho byubutaka.
Ubushobozi bwo Guhambira: Bikora nkibintu byiza cyane, biteza imbere icyatsi kibisi cyumubiri.
Uruhare rwa HPMC mu Gukora Ubuki Bwubuki
1. Inzira yo gukuramo ibicuruzwa
Uburyo bwibanze bwo gukora ibinyomoro byubuki ni ugusohora, aho uruvange rwifu ya ceramic, amazi, ninyongeramusaruro zinyuranye zihatirwa gupfa kugirango habeho imiterere yubuki. HPMC igira uruhare runini muriki gikorwa:
Igenzura rya Rheologiya: HPMC ihindura imiterere yimiterere ya paste ceramic, byoroshe gusohoka binyuze mubuki bworoshye bupfa. Igabanya ubwiza bwa paste munsi yogosha (igitutu cya extrusion), ikorohereza kugenda neza nta gufunga cyangwa guhindura imiyoboro yoroshye.
Kugumana Imiterere: Iyo bimaze gusohora, paste ceramic igomba kugumana imiterere yayo kugeza yumye bihagije. HPMC itanga ubunyangamugayo bwigihe gito (imbaraga zicyatsi), ituma imiterere yubuki igumana imiterere nubunini bwayo itanyeganyega cyangwa ngo itere.
Gusiga amavuta: Ingaruka zo gusiga HPMC zifasha kugabanya ubushyamirane hagati ya paste nimpfu, kugabanya kwambara kubikoresho no kunoza imikorere yimikorere.
2. Imbaraga nicyatsi
Nyuma yo gukuramo, ubuki bwubutaka bwa ceramic bumeze "icyatsi" -kudashaka kandi cyoroshye. HPMC igira uruhare runini mubikorwa byo gutunganya icyatsi kibisi:
Imbaraga zicyatsi zongerewe imbaraga: HPMC ikora nka binder, ifata uduce duto twa ceramic hamwe binyuze mumiterere yayo ya firime. Ibi nibyingenzi muburyo bwo gutunganya no gukurikiraho, kugabanya ibyago byo kwangirika mugihe cyo kumisha no gutunganya.
Amabwiriza agenga ubuhehere: Ubushobozi bwo gufata amazi ya HPMC butuma paste ikomeza kuba nziza mugihe kirekire, bikagabanya ibyago byo guturika nudusembwa mugihe cyambere cyo kumisha.
3. Uburyo bwo kumisha
Kuma nintambwe yingenzi mugukora ibumba ryubuki, aho kuvanaho amazi bishobora gutera kugabanuka ninenge zishobora guterwa nko guturika cyangwa kurigata. HPMC ifasha muriki cyiciro na:
Kuma Uniform: Ibikoresho byo kugumana ubuhehere bwa HPMC bifasha mukugera ku gipimo kimwe cyumye mu miterere yubuki, kugabanya iterambere rya gradients zishobora gukurura.
Kugabanuka Kugenzura: Mugucunga irekurwa ryamazi, HPMC igabanya kugabanuka gutandukanye, ifasha mukubungabunga ubusugire bwimiterere yimiyoboro yubuki.
4. Kurasa no gucumura
Mu cyiciro cyo kurasa, icyatsi kibisi gishyuha ubushyuhe bwinshi kugirango ugere ku gucumura, aho uduce twa ceramic duhurira hamwe tugakora imiterere ikomeye, ikomeye. HPMC, nubwo itagize uruhare rutaziguye muri iki cyiciro, igira ingaruka kubisubizo:
Gutwika: HPMC irabora kandi irashya mugihe cyo kurasa, hasigara matrike isukuye. Kwangirika kwayo bigira uruhare mu iterambere ryimiterere ya pore idafite karubone isigaye cyangwa ibindi bihumanya.
Iterambere ryimiterere ya pore: Gukuraho HPMC birashobora gufasha mukurema ikintu cyiza muri ceramic, gishobora kuba ingirakamaro kubisabwa bisaba gutemba cyangwa kuranga ibintu.
Gusaba-Ibitekerezo byihariye
Guhindura Catalitike
Muguhindura catalitike, ibumba ryibumba ryubatswe hamwe nibikoresho bya catalitiki byorohereza kugabanya ibyuka byangiza. HPMC iremeza ko ceramic substrate ifite imbaraga zubukanishi hamwe nuburyo buhoraho, bukaba ari ngombwa kugirango imikorere ihindurwe neza ihangayikishijwe nubushyuhe bwinshi nubukanishi.
Sisitemu yo kuyungurura
Kubyungurura porogaramu, uburinganire nuburinganire bwimiterere yubuki nibyingenzi. HPMC ifasha kugera kuri geometrike itomoye hamwe nubukanishi bukenewe kugirango ushungure uduce cyangwa gaze neza.
Ubushyuhe
Mu guhanahana ubushyuhe, ububumbyi bwubuki bukoreshwa mugukwirakwiza ubushyuhe mugihe hagabanutse umuvuduko. Igenzura ryokwirukana no gukama bitangwa na HPMC bivamo ibisubizo byasobanuwe neza kandi bihuza imiyoboro ihuza imikorere yubushyuhe.
Inzitizi n'udushya
Mugihe HPMC itanga inyungu nyinshi mugukora ubukerarugendo bwubuki, haracyari imbogamizi hamwe nibice byo guhanga udushya:
Gukwirakwiza uburyo bwiza: Kubona icyerekezo cyiza cya HPMC kubintu bitandukanye bya ceramic hamwe nibisabwa bisaba ubushakashatsi niterambere.
Ingaruka ku bidukikije: Nubwo HPMC ikomoka kuri selile, guhindura imiti hamwe na synthesis inzira itera impungenge ibidukikije. Gutezimbere uburyo burambye bwo kubyaza umusaruro cyangwa ubundi buryo nigice cyiperereza rikorwa.
Kunoza imikorere yimikorere: Iterambere mubikorwa bya HPMC rigamije kunoza ubushyuhe bwumuriro, guhuza neza, no guhuza nibindi byongeweho kugirango byongere imikorere yubutaka bwubuki mubisabwa gusaba.
Hydroxypropyl methylcellulose (HPMC) ninyongera yingirakamaro mu gukora ibumba ry ubuki, bigira uruhare runini mu gutunganya, imiterere, n’imikorere yibi bikoresho. Kuva korohereza ibicuruzwa kugeza kongera imbaraga zicyatsi no kwemeza ko byumye, imitungo ya HPMC irakoreshwa kugirango igere ku bicuruzwa byiza byo mu bwoko bwa ceramique byujuje ubuziranenge bikoreshwa mu nganda zitandukanye. Gukomeza guhanga udushya no gutezimbere muburyo bwa HPMC bikomeje kwagura uruhare rwarwo murwego rwo guhora rwiyongera mubikorwa byubutaka bwateye imbere.
Igihe cyo kohereza: Jun-17-2024