neiye11

amakuru

Hydroxypropyl Methylcellulose HPMC ubumenyi busanzwe

1. Intego nyamukuru ya HPMC niyihe?

Iki gicuruzwa gikoreshwa nkibibyimbye, bikwirakwiza, bihuza, byoroshye, bitarinze amavuta, byuzuza, emulisiferi na stabilisateur mu nganda z’imyenda.Irakoreshwa kandi cyane mubikorwa bya sintetike, peteroli-chimique, ceramic, impapuro, uruhu, ubuvuzi, ibiryo n'amavuta yo kwisiga.

2. Ni uruhe ruhare rwa HPMC mu rukuta rw'imbere rwuzuye ifu?

HPMC ifite imirimo itatu: ifu yuzuye yurukuta rwimbere, kubyimba, gufunga amazi no kubaka.Kwishyira hamwe: Methyl selulose irashobora kwibanda mugisubizo kireremba cyangwa amazi yo mumazi kugirango ikomeze imirimo imwe kandi ihamye kandi irinde gutemba no kumanikwa.Gufunga amazi: Ifu y'urukuta rw'imbere yumye gahoro, kandi calcium yongewemo igaragarira mugukoresha amazi.Ubwubatsi bwubwubatsi: Methyl selulose ifite imikorere yo guswera, ishobora gutuma urukuta rwimbere rushyira ifu ifite imiterere myiza yubuhanga.HPMC ntabwo yitabira guhindura imiti yose, ariko igira uruhare mukuzuza.Ifu yimbere yimbere, kurukuta, ni impinduka yimiti, kubera ko hariho imiti mishya ihinduka, ifu yimbere yinkuta yimbere ikurwa kurukuta, igasya, ikongera gukoreshwa, Kuberako hashyizweho ibintu bishya byimiti (calcium bicarbonate). .Ibice byingenzi bigize ifu ya calcium yumukara ni: imvange ya Ca (OH) 2, CaO hamwe na CaCO3 nkeya, CaO + H2O = Ca (OH) 2 —Ca (OH) 2 + CO2 = CaCO3 ↓ + H2O mu mazi no mu kirere Mu bikorwa bya CO2, karubone ya calcium ikorwa, mu gihe HPMC igumana amazi gusa kandi igafasha kwitwara neza kwa calcium yumukara, kandi ntabwo yitabira ikintu icyo ari cyo cyose ubwacyo.

3. Nigute dushobora gusuzuma ubuziranenge bwa HPMC muburyo bworoshye?

.Nyamara, ibicuruzwa byiza bifite umweru mwiza..Nibyiza, nibyiza muri rusange..Kurenza ukohereza, nibyiza, byerekana ko imbere bitagaragara neza..Ubushobozi bwa reaction ya vertical reaction muri rusange nibyiza, kandi reaction ya horizontal iba mibi, ariko ntibisobanuye ko ubwiza bwa reaction ya vertical iruta iy'ibikorwa bya horizontal.Ubwiza bwibicuruzwa buracyagenwa nimpamvu nyinshi.(4) Igipimo: Iyo igipimo kinini, kiremereye ni cyiza.Umwihariko wo muri rusange uterwa na hydroxypropyl nyinshi irimo, kandi uko hydroxypropyl iri hejuru, niko gufata amazi neza.

4. Ni iki gikwiye kwitabwaho mugihe ukoresheje ubukonje n'ubushyuhe bwa HPMC?

Ubukonje bwa HPMC buragereranywa nubushyuhe, ni ukuvuga ko ubukonje bwiyongera uko ubushyuhe bugabanuka.Mubisanzwe tuvuga ko ubwiza bwibicuruzwa bivuga ibisubizo byo kugerageza igisubizo cyacyo cya 2% cyamazi mubushyuhe bwa dogere selisiyusi 20.Mubikorwa bifatika, mubice bifite itandukaniro rinini ryubushyuhe hagati yizuba nimbeho, twakagombye kumenya ko bisabwa gukoresha ubukonje buke ugereranije nimbeho, bifasha cyane kubaka.Bitabaye ibyo, iyo ubushyuhe buri hasi, ubwiza bwa selile buziyongera, kandi ikiganza kizumva kiremereye mugihe cyakuweho.

5. Ni ubuhe buryo bwo gusesa HPMC?

Uburyo bwo gushonga amazi ashyushye: Kubera ko HPMC idashonga mumazi ashyushye, HPMC irashobora gukwirakwizwa kimwe mumazi ashyushye mugihe cyambere, hanyuma igashonga vuba iyo ikonje.Uburyo bubiri busanzwe busobanurwa gutya: 1).Umubare w'amazi ashyushye kandi ashyushye kuri 70 ° C.Buhoro buhoro ongeramo hydroxypropyl methylcellulose hamwe no gukurura buhoro, tangira HPMC ireremba hejuru y’amazi, hanyuma buhoro buhoro ukora ibishishwa, hanyuma ukonje ibishishwa ukoresheje.2).Ongeramo 1/3 cyangwa 2/3 by'amazi asabwa muri kontineri hanyuma ubishyuhe kuri 70 ° C.Ukurikije uburyo bwa 1), kwirakwiza HPMC kugirango utegure amazi ashyushye;hanyuma ongeramo amazi asigaye mumazi ashyushye Muri slurry, shyira imvange nyuma yo gukurura.Uburyo bwo kuvanga ifu: vanga ifu ya HPMC nibindi bikoresho byinshi byifu yifu, vanga neza na blender, hanyuma ushyiremo amazi kugirango ushonga, hanyuma HPMC irashobora gushonga muriki gihe idakomanze kandi igateranya, kuko buri mfuruka ntoya, hariho gusa gake ya HPMC Ifu izahita ishonga iyo ihuye namazi.-Ifu yuzuye ifu nabakora minisiteri bakoresha ubu buryo.[Hydroxypropyl methyl selulose (HPMC) ikoreshwa nkumubyimba mwinshi kandi ugumana amazi mumashanyarazi ya poro.]

6. Uwiteka ni ikidosageya HPMC yongeyeho ifu ya putty?

Ingano ya HPMC ikoreshwa mubikorwa nyabyo iratandukanye bitewe nikirere, ubushyuhe, ubwiza bwa calcium y ivu ryaho, amata yifu ya putty, n "ubuziranenge busabwa nabakiriya".Muri rusange, ni hagati ya 4 kg na 5 kg.Kurugero, ifu ya putty mugushushanya '> Pekin ni kg 5;ifu ya putty muri Guizhou ahanini ni kg 5 mu cyi na 4.5 kg mu gihe cy'itumba;Umubare wa Yunnan wongeyeho ni muto, muri rusange kg 3-kg n'ibindi.


Igihe cyo kohereza: Ugushyingo-13-2021