HPMC ya minisiteri yumye

Ibiranga HPMC muri minisiteri ivanze

1, HPMC mubiranga minisiteri isanzwe

HPMC ikoreshwa cyane nka retarder na agent igumana amazi mukigereranyo cya sima.Mubice bifatika na minisiteri, birashobora kunoza ubukonje no kugabanuka, gushimangira imbaraga zihuza, kugenzura igihe cyagenwe cya sima, no kunoza imbaraga zambere nimbaraga zihamye.Kuberako ifite umurimo wo gufata amazi, irashobora kugabanya gutakaza amazi hejuru ya coagulation, irashobora kwirinda ko habaho imvune kumpera, kandi irashobora kunoza imikorere no kubaka.Cyane cyane mubwubatsi, irashobora kuramba no guhindura igihe cyagenwe, hamwe no kwiyongera kwa dosiye ya HPMC, igihe cyo gushiraho minisiteri cyongerewe igihe;Kunoza imashini na pompability, bikwiranye nubwubatsi bwimashini;Irashobora kunoza imikorere yubwubatsi no gukumira ikirere cyumunyu ushonga amazi hejuru yinyubako.

2, HPMC mubiranga minisiteri idasanzwe

HPMC nigikoresho cyiza cyo kubika amazi ya minisiteri yumye, igabanya umuvuduko wamaraso nu ntera ya stratifike ya minisiteri kandi ikanoza ubufatanye bwa minisiteri.HPMC irashobora kuzamura cyane imbaraga zingirakamaro hamwe nimbaraga zo guhuza za minisiteri, nubwo imbaraga zunama nimbaraga zo kwikuramo za minisiteri bigabanukaho gato na HPMC.Byongeye kandi, HPMC irashobora kubuza neza gushiraho ibice bya pulasitike muri minisiteri, kugabanya igipimo cya plastike yamenetse ya minisiteri, gufata amazi ya minisiteri kwiyongera hamwe no kwiyongera kwijimye rya HPMC, kandi iyo ubukonje burenze 100000mPa • s, kubika amazi ntibikiri bikiri. byiyongereye ku buryo bugaragara.Ubwiza bwa HPMC nabwo bugira ingaruka runaka ku kigero cyo gufata amazi ya minisiteri, iyo agace kameze neza, igipimo cyo gufata amazi ya minisiteri cyarushijeho kuba cyiza, ubusanzwe gikoreshwa muri sima ya minima HPMC igomba kuba munsi ya microne 180 (ecran ya mesh 80) .Ibikwiye bya HPMC muri minisiteri yumye ni 1 ‰ ~ 3 ‰.

2.1. layer ya lubrication firime, kora sisitemu ya slurry irusheho gushikama, nayo yazamuye minisiteri mugikorwa cyo kuvanga ibintu byamazi kandi kubaka kunyerera birashobora no.

2.2 Igisubizo cya HPMC bitewe nuburyo bwihariye bwimiterere ya molekile, kugirango amazi yo muri minisiteri atoroha gutakaza, kandi arekurwa buhoro buhoro mugihe kirekire, atanga minisiteri nziza yo gufata neza no kubaka.Irinda amazi kugenda vuba cyane kuva kuri minisiteri kugera mukibanza, kugirango amazi yagumanye agume hejuru yibintu bishya, biteza imbere amazi ya sima kandi bizamura imbaraga zanyuma.By'umwihariko, niba intera ihuye na sima ya sima, plaster na binder yatakaje amazi, iki gice ntigifite imbaraga kandi nta mbaraga zihuza.Muri rusange, ubuso buhuye nibi bikoresho ni imibiri ya adsorption, byinshi cyangwa bike kugirango ikure amazi amwe hejuru, bigatuma iki gice cyamazi kituzuye, kuburyo sima ya sima na ceramic tile substrate na ceramic tile cyangwa plaster na imbaraga za metope kugabanuka.

Mugutegura minisiteri, kubika amazi ya HPMC nigikorwa nyamukuru.Byaragaragaye ko gufata amazi bishobora kugera kuri 95%.Kwiyongera k'uburemere bwa HPMC hamwe na dosiye ya sima bizamura imikoreshereze y'amazi n'imbaraga za minisiteri.

Urugero: kubera ko umurongo wa tile ugomba kuba ufite imbaraga zingana hagati yigitereko na tile, bityo rero uhuza nibintu bibiri byamazi ya adsorption;Urufatiro (urukuta) hejuru na tile.Ikariso idasanzwe ya ceramic, itandukaniro ryiza ni rinini cyane, bimwe mu byobo ni binini cyane, igipimo cy’amazi yo mu bwoko bwa ceramic tile cyinjira cyane, ku buryo imikorere y’inguzanyo isenywa, umukozi wo gufata amazi ni ngombwa cyane, kandi kongeramo HPMC birashobora guhura neza nibi ibisabwa.

2.3 HPMC ihamye kuri acide na base, kandi igisubizo cyayo cyamazi kirahagaze neza murwego rwa pH = 2 ~ 12. Soda ya Caustic namazi yindimu ntabwo bigira ingaruka zikomeye kumiterere yabyo, ariko alkali irashobora kwihutisha umuvuduko wacyo, kandi gato kunoza ubwiza.

2.4. agace k'ubwubatsi.

2.5 HPMC ni ubwoko bwa electrolyte itari ionic na polymeric.Irahagaze neza mugisubizo cyamazi hamwe nu munyu wicyuma na electrolytike kama, kandi irashobora kongerwaho mubikoresho byubwubatsi igihe kirekire kugirango irusheho gutera imbere.

HPMC itanga umusaruro cyane cyane fibre fibre (murugo) nyuma ya alkalisation, etherification no kubyara ibicuruzwa bya polysaccharide.Ntabwo yishyuza ubwayo, kandi ntabwo ikora hamwe na ion zashizwe mubikoresho byashizwemo, kandi imikorere yayo irahagaze.Igiciro kiri munsi yubundi bwoko bwa selulose ether, bityo ikoreshwa cyane muri minisiteri yumye.

Hydroxypropyl methyl selulose HPMCimikorere mumashanyarazi avanze:

HPMCIrashobora gutuma ivanga rishya rivamo umubyimba kugirango ugire ubwiza butose, kugirango wirinde gutandukana.Kubika amazi (kubyimbye) nabwo ni umutungo wingenzi, ufasha kugumana ubwinshi bwamazi yubusa muri minisiteri, bityo bigaha ibikoresho bya simaitima umwanya munini wo kuvomera nyuma ya minisiteri.(kubika amazi) umwuka wacyo, irashobora kwinjiza udusimba duto duto, kunoza iyubakwa rya minisiteri.

Hydroxypropyl methyl selulose ether viscosity ibikorwa byinshi byo gufata amazi nibyiza.Viscosity nikintu cyingenzi cyimikorere ya HPMC.Kugeza ubu, abakora HPMC batandukanye bakoresha uburyo nibikoresho bitandukanye kugirango bamenye ubwiza bwa HPMC.Uburyo nyamukuru ni HaakeRotovisko, Hoppler, Ubbelohde na Brookfield, nibindi

Kubicuruzwa bimwe, ibisubizo bya viscosity byapimwe nuburyo butandukanye biratandukanye cyane, bimwe nibitandukaniro byinshi.Kubwibyo, mugihe ugereranije viscosity, bigomba gukorwa hagati yuburyo bumwe bwikizamini, harimo ubushyuhe, rotor, nibindi.

Kubunini buke, nibyiza cyane, niko gufata amazi neza.Ibice binini bya selulose ether ihura namazi, hejuru ihita ishonga hanyuma igakora gel kugirango ipfundike ibikoresho kugirango irinde molekile zamazi gukomeza kwinjira, rimwe na rimwe umwanya muremure ntushobora gukwirakwira neza gushonga, gushiraho igisubizo cyibyondo cyangwa ibyondo cyangwa aglomerate.Ubushobozi bwa selile ether ni kimwe mubintu byo guhitamo selile.Ubwiza nabwo ni indangagaciro yingenzi ya methyl selulose ether.MC kuri minisiteri yumye isaba ifu, amazi make, hamwe nubunini bwa 20% ~ 60% ingano ya 63um.Ubwiza bugira ingaruka kuri hydroxypropyl methyl selulose ether.Ubusanzwe MC isanzwe ni granulaire kandi irashobora gushonga byoroshye mumazi idateranije, ariko umuvuduko wo gushonga uratinda cyane, kubwibyo ntibikwiriye gukoreshwa mumashanyarazi yumye.Muri minisiteri yumye, MC ikwirakwizwa hagati yuzuye, yuzuza neza nibikoresho bya sima nka sima, kandi ifu yonyine ihagije irashobora kwirinda gufatira methyl selulose ether mugihe ivanze namazi.Iyo MC yongeyeho amazi yo gushonga agglomerate, biragoye cyane kuyitatanya no kuyashonga.MC ifite ubwiza buke ntabwo ari imyanda gusa, ahubwo inagabanya imbaraga zaho za minisiteri.Iyo minisiteri yumye yubatswe ahantu hanini, umuvuduko wo gukiza wa minisiteri yumye iragabanuka cyane, bikavamo gucika biterwa nigihe cyo gukira.Kubikoresho byo gutera imashini, kubera igihe gito cyo kuvanga, ubwiza buri hejuru.

Muri rusange, uko ubukonje buri hejuru, ningaruka nziza yo gufata amazi.Nyamara, uko ubukonje buri hejuru, niko uburemere bwa molekile ya MC buri hejuru, kandi imikorere yo gusesa izagabanuka uko bikwiye, bigira ingaruka mbi kumbaraga no mubikorwa bya minisiteri.Iyo hejuru yubukonje, niko bigaragara cyane kubyimbye bya minisiteri, ariko ntabwo bihuye nubusabane.Iyo hejuru yubukonje, minisiteri itose izarushaho gukomera, haba mubwubatsi, imikorere ya scraper yometse hamwe no gufatira hejuru kubintu fatizo.Ariko ntabwo ari byiza kongera imbaraga zimiterere ya minisiteri itose.Muyandi magambo, imikorere irwanya sag ntigaragara mugihe cyo kubaka.Ibinyuranye na byo, methyl selulose ethers yahinduwe neza ifite imikorere myiza mugutezimbere imbaraga zububiko bwa minisiteri.

Kugumana amazi ya HPMC nabyo bifitanye isano n'ubushyuhe bwo gukoresha, kandi kubika amazi ya methyl selulose ether bigabanuka hamwe n'izamuka ry'ubushyuhe.Ariko mubikorwa bifatika bifatika, ibidukikije byinshi bya minisiteri yumye akenshi bizaba biri mubushyuhe bwo hejuru (hejuru ya dogere 40) mugihe cyo kubaka muri substrate ishyushye, nko kwizuba ryizuba ryurukuta rwinyuma rushyizwemo plaque, akenshi byihutisha gukomera kwa sima hamwe na minisiteri yumye gukomera.Kugabanuka kw'igipimo cyo gufata amazi biganisha ku kumva ko imyubakire ndetse no kurwanya ibice bigira ingaruka.Muri ubu buryo, kugabanya ingaruka ziterwa nubushyuhe biba ingenzi cyane.Ni muri urwo rwego, methyl hydroxyethyl selulose ether yiyongera kuri ubu ifatwa nkiri ku isonga mu iterambere ry’ikoranabuhanga.Ndetse hamwe no kwiyongera kwa methyl hydroxyethyl selulose ya dosiye (formula yo mu cyi), kurwanya no gucika intege ntibishobora guhaza ibikenewe gukoreshwa.Binyuze mu buvuzi bwihariye bwa MC, nko kongera urugero rwa etherification, ingaruka zo gufata amazi ya MC zirashobora gukomeza ingaruka nziza munsi yubushyuhe bwinshi, kuburyo ishobora gutanga imikorere myiza mubihe bibi.

Rusange HPMC ifite ubushyuhe bwa gel, irashobora kugabanwa muburyo bwa 60, 65, 75.Kubisanzwe byiteguye kuvangwa na minisiteri ukoresheje imishinga yumusenyi winzuzi byari byiza guhitamo ubushyuhe bwo hejuru bwa gel 75 HPMC.Igipimo cya HPMC ntigikwiye kuba kinini cyane, hejuru cyane bizongera amazi ya minisiteri, bizakomeza kuri plaster, igihe cyo guterana ni kirekire cyane, bigira ingaruka kumyubakire.Ibicuruzwa bitandukanye bya minisiteri bihitamo ubwiza butandukanye bwa HPMC, ntukoreshe bisanzwe HPMC.Kubwibyo, nubwo hydroxypropyl methyl selulose yibicuruzwa ari byiza, ariko nibyiza guhitamo neza HPMC ninshingano yibanze yabakozi ba laboratoire.Kugeza ubu, hari abadandaza benshi batemewe mu kigo hamwe na HPMC, ubuziranenge ni bubi cyane, laboratoire igomba kuba mu gutoranya selile zimwe, gukora igerageza ryiza, kwemeza umutekano w’ibicuruzwa bya minisiteri, ntukifuze bihendutse, gutera igihombo bitari ngombwa.