1. Ni ubuhe buryo bukoreshwa bwahydroxypropyl methylcellulose (HPMC)?
HPMC ikoreshwa cyane mubikoresho byubwubatsi, gutwikira, ibisigazwa byubukorikori, ububumbyi, ubuvuzi, ibiryo, imyenda, ubuhinzi, kwisiga, itabi nizindi nganda. HPMC irashobora kugabanywa mubyiciro byubwubatsi, icyiciro cyibiribwa nicyiciro cya farumasi ukurikije intego. Kugeza ubu, ibyinshi mubicuruzwa byo murugo ni urwego rwubwubatsi. Mu cyiciro cyubwubatsi, ifu ya putty ikoreshwa mubwinshi, hafi 90% ikoreshwa kubifu ya putty, naho ibindi bikoreshwa mumasima ya sima.
2. Impumuro ya hydroxypropyl methylcellulose (HPMC) ni ubuhe?
HPMC yakozwe nuburyo bwo gukemura ikoresha toluene na isopropanol nkibishishwa. Niba gukaraba atari byiza cyane, hazabaho umunuko usigaye.
3. Ni ubuhe buryo bwo gusesa hydroxypropyl methylcellulose (HPMC)?
Uburyo bwo gushonga amazi ashyushye: Kubera ko HPMC idashonga mumazi ashyushye, HPMC irashobora gukwirakwizwa mu mazi ashyushye mugihe cyambere, hanyuma igashonga vuba iyo ikonje. Uburyo bubiri busanzwe busobanurwa gutya:
1) Shira amazi asabwa muri kontineri hanyuma uyashyuhe kuri 70 ° C. Hydroxypropyl methylcellulose yongeweho buhoro buhoro buhoro buhoro, mu ikubitiro HPMC ireremba hejuru y’amazi, hanyuma buhoro buhoro ikora ibibyimba, bikonjeshwa bikurura.
2), ongeramo 1/3 cyangwa 2/3 by'amazi asabwa muri kontineri, hanyuma ubishyuhe kugeza kuri 70 ° C, ukwirakwiza HPMC ukurikije uburyo bwa 1), hanyuma utegure amazi ashyushye; hanyuma shyiramo amazi asigaye asigaye mumazi ashyushye, imvange yarakonje nyuma yo gukurura.
Uburyo bwo kuvanga ifu: vanga ifu ya HPMC ninshi mubindi bintu byifu yifu, vanga neza na mixer, hanyuma ushyiremo amazi kugirango ushonga, hanyuma HPMC irashobora gushonga muriki gihe nta agglomeration, kuko hariho HPMC nkeya muri buri nguni ntoya Ifu, izahita ishonga mugihe ihuye namazi. —— Ifu yuzuye ifu nabakora minisiteri bakoresha ubu buryo. [Hydroxypropyl methylcellulose (HPMC) ikoreshwa nk'umubyimba mwinshi kandi ugumana amazi muri pompe ya poro. ]
4. Nigute dushobora gusuzuma ubuziranenge bwa hydroxypropyl methylcellulose (HPMC) byoroshye kandi byihuse?
. Nyamara, ibyinshi mubicuruzwa byiza bifite umweru mwiza.
(2) Ubwiza: Ubwiza bwa HPMC mubusanzwe bufite mesh 80 na mesh 100, naho mesh 120 ni mike. HPMC nyinshi ikorerwa muri Hebei ni mesh 80. Nibyiza, mubisanzwe, nibyiza.
(3) Kohereza urumuri: shyirahydroxypropyl methylcellulose (HPMC)mumazi kugirango akore colloid ibonerana, hanyuma urebe itumanaho ryayo. Ninini yohereza urumuri, nibyiza, byerekana ko harimo ibidashobora gukemuka muri byo. . Ubucucike bwa reaction ya vertical muri rusange nibyiza, kandi nibya reaction ya horizontal ni bibi, ariko ntibisobanuye ko ubwiza bwa reaction ya vertical iruta iya reaction ya horizontal, kandi ubwiza bwibicuruzwa bugenwa nibintu byinshi.
(4) Uburemere bwihariye: Ninini nini ya rukuruzi, niko iremereye. Umwihariko ni munini, muri rusange kubera ko ibiri mu itsinda rya hydroxypropyl muri yo ari byinshi, kandi ibikubiye mu itsinda rya hydroxypropyl ni byinshi, gufata amazi ni byiza.
5. Ni irihe tandukaniro riri hagati yubwoko bwamazi akonje nubwoko bushyushye bwa hydroxypropyl methylcellulose mugikorwa cyo kubyara?
Ubwoko bwihuta-bwa HPMC buvurwa hejuru na glyoxal, kandi bukwirakwira vuba mumazi akonje, ariko ntibishonga. Irashonga gusa iyo ububobere bwiyongereye. Ubwoko bwako kanya nta kuvura hejuru hamwe na glyoxal. Niba ingano ya glyoxal ari nini, gutatanya bizihuta, ariko ubwiza bwiyongera buhoro, kandi niba umubare ari muto, ibinyuranye bizaba ukuri.
6. Ni ubuhe buryo bukwiye bwa hydroxypropyl methylcellulose (HPMC)?
Ifu ya putty muri rusange ni 100.000 Yuan, kandi ibisabwa kuri minisiteri ni byinshi, kandi 150.000 yuan birakenewe kugirango bikoreshwe byoroshye. Byongeye kandi, umurimo wingenzi wa HPMC nukubika amazi, ugakurikirwa no kubyimba. Mu ifu ya putty, mugihe cyose gufata amazi ari byiza kandi ibishishwa bikaba bike (70.000-80,000), birashoboka. Birumvikana ko hejuru yubukonje, niko gufata amazi ugereranije. Iyo ubwiza burenze 100.000, ubwiza buzagira ingaruka kumazi. Ntabwo ari byinshi.
7. Ni ibihe bimenyetso by'ingenzi bya tekinike ya hydroxypropyl methylcellulose (HPMC)?
Hydroxypropyl ibirimo hamwe nubwiza, abantu benshi bahangayikishijwe nibi bipimo byombi. Abafite hydroxypropyl nyinshi muri rusange bafite amazi meza. Iyifite ubukonje bwinshi ifite amazi meza, ugereranije (ntabwo rwose), naho iyifite ubukana bwinshi ikoreshwa neza muri sima ya sima.
8. Ni ibihe bikoresho by'ibanze bya hydroxypropyl methylcellulose (HPMC)?
Ibikoresho nyamukuru bya hydroxypropyl methylcellulose (HPMC): ipamba itunganijwe, chloride methyl, okiside ya propylene, nibindi bikoresho fatizo, soda ya caustic, aside, toluene, isopropanol, nibindi.
9. Ni ubuhe butumwa nyamukuru bwo gushyira mu bikorwaHPMCifu ya putty, kandi bibaho muburyo bwa chimique?
Mu ifu yuzuye, HPMC ifite uruhare runini rwo kubyimba, gufata amazi no kubaka.
Kubyimba: Cellulose irashobora kubyimba kugirango ihagarike kandi igumane igisubizo kimwe hejuru no hepfo, kandi irwanya kugabanuka.
Kubika amazi: kora ifu ya putty yumye gahoro gahoro, kandi ufashe calcium yivu gukora mugihe cyamazi.
Ubwubatsi: Cellulose ifite amavuta yo gusiga, ashobora gutuma ifu ya putty yubaka neza.
Kongeramo amazi kumashanyarazi no kuyashyira kurukuta ni reaction ya chimique, kuko havutse ibintu bishya. Niba ukuyemo ifu ya putty kurukuta kurukuta, ukayisya ifu, ukongera ukayikoresha, ntabwo bizakora kuko havutse ibintu bishya (calcium karubone). ) na.
Ibice byingenzi bigize ifu ya calcium yivu ni: imvange ya Ca (OH) 2, CaO hamwe na CaCO3, CaO + H2O = Ca (OH) 2 - Ca (OH) 2 + CO2 = CaCO3 ↓ + H2O Kalisiyumu yivu iri mumazi no mwuka Mubikorwa bya CO2, karubone ya calcium ikora, mugihe HPMC igumana amazi yose, ikagira uruhare mukubyara kalisiyumu.
10. HPMC ni selile ya ionic selile, none non-ionic niki?
Mu magambo y’abalayiki, abatari ion ni ibintu bidatera ioni mu mazi. Ionisation bivuga inzira electrolyte igabanyijemo ion zishishwa zishobora kugenda mubwisanzure mumashanyarazi yihariye (nk'amazi, inzoga). Kurugero, sodium chloride (NaCl), umunyu turya burimunsi, ushonga mumazi na ionize kugirango ubyare sodium yimuka yimuka kubuntu (Na +) byuzuye neza na ioni ya chloride (Cl) byashizwemo nabi. Nukuvuga ko, iyo HPMC ishyizwe mumazi, ntabwo izitandukanya na ion zashizwemo, ahubwo ibaho muburyo bwa molekile.
11. Ubushyuhe bwa gel bwa hydroxypropyl methylcellulose bufitanye isano niki?
Ubushyuhe bwa geli ya HPMC bufitanye isano nuburyo bukubiyemo, uburyo bwo hasi bwa methoxy, nubushyuhe bwa gel.
12. Haba hari isano hagati yigitonyanga cyifu ya HPMC?
Gutakaza ifu yifu ya putty bifitanye isano ahanini nubwiza bwa calcium yivu, kandi ntaho bihuriye na HPMC. Kalisiyumu nkeya ya calcium yumukara hamwe nigipimo kidakwiye cya CaO na Ca (OH) 2 muri calcium yumukara bizatera gutakaza ifu. Niba ifite aho ihuriye na HPMC, noneho niba HPMC ifite amazi mabi, bizatera no gutakaza ifu.
13. Ni irihe tandukaniro riri hagati yubwoko bwamazi akonje nubwoko bushyushye bwa hydroxypropyl methylcellulose mugikorwa cyo kubyara?
Ubwoko bwihuta-bwaHPMCni hejuru-ivurwa na glyoxal, kandi ikwirakwira vuba mumazi akonje, ariko ntabwo ishonga. Irashonga gusa iyo ububobere bwiyongereye. Ubwoko bwako kanya nta kuvura hejuru hamwe na glyoxal. Niba ingano ya glyoxal ari nini, gutatanya bizihuta, ariko ubwiza bwiyongera buhoro, kandi niba umubare ari muto, ibinyuranye bizaba ukuri.
Igihe cyo kohereza: Apr-25-2024