Ni ubuhe buryo bukoreshwa bwa HPMC?

HPMC ikoreshwa cyane mubikoresho byubwubatsi, gutwikira, ibisigazwa byubukorikori, ububumbyi, ubuvuzi, ibiryo, imyenda, ubuhinzi, kwisiga, itabi nizindi nganda. HPMC irashobora kugabanywa mubyiciro byinganda, urwego rwibiryo hamwe nu rwego rwa farumasi ukurikije ibisabwa.

Ni ikihe gipimo cya HPMC mu ifu yuzuye?

Umubare wa HPMC ukoreshwa mubikorwa bifatika uterwa nikirere, ubushyuhe, ubwiza bwa calcium y ivu ryaho, amata yifu ya putty hamwe nubwiza busabwa nabakiriya. Hariho itandukaniro ahantu hatandukanye, muri rusange, ni hagati ya 4-5 kg.

Ni ubuhe buryo bukwiye bwa hydroxypropyl methylcellulose?

Mubisanzwe, 100.000 yifu yifu irahagije, kandi ibisabwa muri minisiteri ni byinshi, kandi bikenera 150.000 kugirango byoroshye gukoresha. 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 (7-8), birashoboka. Birumvikana ko hejuru yubukonje, niko gufata amazi ugereranije. Iyo ibishishwa birenze 100.000, ibishishwa nta ngaruka bigira ku kubika amazi. binini.

Nibihe bintu nyamukuru byerekana tekinike ya hydroxypropyl methylcellulose?

Hydroxypropyl ibirimo

Ibirimo Methyl

ububobere

Ivu

Gutakaza kumisha

Nibihe bikoresho nyamukuru bya hydroxypropyl methylcellulose?

Ibikoresho by'ibanze bya HPMC: ipamba inoze, methyl chloride, okiside ya propylene, ibindi bikoresho fatizo, soda ya caustic, aside toluene.

Ni ubuhe butumwa nyamukuru bwo gukoresha hydroxypropyl methylcellulose mu ifu yuzuye, kandi bibaho mu buryo bwa shimi?

Mu ifu yuzuye, ifite uruhare runini rwo kubyimba, gufata amazi no kubaka. Kubyimba, selile irashobora kwiyongera kugirango ihagarike, igumane igisubizo 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. HPMC ntabwo yitabira imiti iyo ari yo yose, ariko igira uruhare gusa.

Hydroxypropyl methylcellulose ni ether ya selile idafite ionic, nonese non-ionic niki?

Mu magambo y’abalayiki, ibintu bya inert ntabwo bigira uruhare mu myitwarire y’imiti.

CMC (carboxymethyl selulose) ni selile ya cationic cationic, bityo izahinduka curd curd mugihe ihuye na calcium yivu.

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.

Haba hari isano hagati yigitonyanga cyifu ya hydroxypropyl methylcellulose?

Hariho umubano! ! ! Nibigumana amazi mabi ya HPMC, bizatera gutakaza ifu.

Ni irihe tandukaniro riri hagati y'amazi akonje ako kanya n'ubwoko bushyushye bwa hydroxypropyl methylcellulose mugikorwa cyo kubyara?

Ubwoko bwamazi akonje bwubwoko bwa HPMC buvurwa hejuru na glyoxal, kandi bukwirakwira vuba mumazi akonje, ariko ntibushonga. Irashonga gusa iyo ububobere bwiyongereye. Ubwoko bushyushye ntibuboneka hejuru ya glyoxal. Niba ingano ya glyoxal ari nini, gutatanya bizihuta, ariko ubwiza bwiyongera buhoro, kandi niba umubare ari muto, ibinyuranye bizaba ukuri.

Umunuko wa hydroxypropyl methylcellulose ni uwuhe?

HPMC yakozwe nuburyo bwo gukemura ikoresha toluene na isopropanol nkibishishwa. Niba gukaraba atari byiza cyane, hazabaho umunuko usigaye. (Kubogama kutabogamye ninzira yingenzi yumunuko)

nigute ushobora guhitamo hydroxypropyl methylcellulose?

Ifu yuzuye: isaba kugumana amazi menshi, kubaka byoroshye

Isima isanzwe ishingiye kuri sima: isaba kugumana amazi menshi, kurwanya ubushyuhe bwinshi, hamwe nubwiza bwihuse (

Gukoresha kole yubaka: ibicuruzwa byihuse hamwe nubwiza bwinshi.

Gypsum mortar: kubika amazi menshi, ubukonje buciriritse kandi buke, ubwiza bwihuse bwiyongera

Ni irihe zina rya hydroxypropyl methylcellulose?

Bivugwa nka HPMC cyangwa MHPC alias hypromellose, selile hydroxypropyl methyl ether.

Gukoresha hydroxypropyl methylcellulose muri poro ya putty, niyihe mpamvu itera umwuka mubi mwifu ya putty?

Mu ifu yuzuye, HPMC ifite uruhare runini rwo kubyimba, gufata amazi no kubaka. Impamvu zibibyimba ni:

(1) Amazi menshi yongeyeho.

(2) Iyo igice cyo hasi kitumye, kura ikindi gice hejuru, kandi byoroshye kubira ifuro.

Ni irihe tandukaniro riri hagati ya hydroxypropyl methylcellulose na MC:

MC ni methyl selulose, ikozwe muri ether ya selile mu kuvura ipamba inoze hamwe na alkali, ikoresheje metani chloride nka etherification, kandi ikagira ingaruka zitandukanye. Mubisanzwe, urwego rwo gusimburwa ni 1.6-2.0, kandi gukemura biratandukanye hamwe ninzego zitandukanye zo gusimburwa. Bitandukanye, ni ibya non-ionic selulose ether.

. Mubisanzwe, niba umubare wongeyeho ari munini, ubwiza ni buto, kandi ubwiza ni bunini, igipimo cyo gufata amazi ni kinini. Muri byo, umubare wongeyeho ufite ingaruka nyinshi ku kigero cyo gufata amazi ya muntu. Ubukonje ntabwo bujyanye nigipimo cyo gufata amazi. Igipimo cyo guseswa ahanini biterwa nubuso bwa selile. Impamyabumenyi yo guhindura no kugereranya neza. Muri ethers ya selile yavuzwe haruguru, methyl selulose na hydroxypropyl methyl selulose bifite igipimo kinini cyo gufata amazi.

(2) Methylcellulose irashonga mumazi akonje, kandi bizagorana gushonga mumazi ashyushye. Igisubizo cyamazi cyacyo kirahagaze neza murwego rwa ph = 3-12. Ifite guhuza neza na krahisi, nibindi byinshi na surfactants. Iyo ubushyuhe Iyo ubushyuhe bwa gelation bugeze, gelation izabaho.

(3) Imihindagurikire yubushyuhe izagira ingaruka zikomeye ku kigero cyo gufata amazi ya methyl selile. Mubisanzwe, uko ubushyuhe buri hejuru, niko igipimo cyo gufata amazi ari kibi. Niba ubushyuhe bwa minisiteri burenze dogere 40, kugumana amazi ya methyl selulose bizagabanuka cyane, bizagira ingaruka zikomeye ku iyubakwa rya minisiteri.

(4) Methyl selulose igira ingaruka zikomeye mukubaka no gufatira minisiteri. Gufatanya hano bivuga imbaraga zifatika zumvwa hagati yumukozi usaba umukozi nu rukuta rwubatswe, ni ukuvuga kurwanya ubukana bwa minisiteri. Kwizirika hejuru ni byinshi, kurwanya shear ya minisiteri ni nini, kandi imbaraga zisabwa n'abakozi mugikorwa cyo gukoresha nazo nini, kandi kubaka minisiteri ni bibi.

Hydroxypropyl methylcellulose igabanijwemo ubwoko bwinshi, kandi ni irihe tandukaniro mugukoresha kwabo?

HPMC irashobora kugabanwa muburyo bwihuse (izina ryikirango “S”) nubwoko bushyushye. Ibicuruzwa byubwoko bukwirakwira vuba mumazi akonje bikabura mumazi. Muri iki gihe, amazi ntagira ubwiza kuko HPMC ikwirakwizwa mumazi gusa nta gushonga nyabyo. Hafi (gukurura) muminota 2, ubwiza bwamazi bugenda bwiyongera buhoro buhoro, bigakora colloid yera yera igaragara. Ibicuruzwa bishyushye, iyo uhuye namazi akonje, birashobora gukwirakwira vuba mumazi ashyushye bikabura mumazi ashyushye. Iyo ubushyuhe bugabanutse ku bushyuhe runaka (ukurikije ubushyuhe bwa gel bwibicuruzwa), ibishishwa bizagenda bigaragara buhoro buhoro kugeza bibaye colloid ibonerana.

Nubuhe buryo bwo gusesa hydroxypropyl methylcellulose?

1) Moderi zose zirashobora kongerwaho ibikoresho muburyo bwo kuvanga byumye;

2) Iyo bikenewe kongerwaho muburyo butaziguye nubushyuhe busanzwe bwamazi, nibyiza gukoresha ubwoko bukwirakwiza amazi akonje, kandi mubisanzwe bifata iminota 10-90 kubyimba nyuma yo kongeramo (kuvanga no kubyutsa)

3) Icyitegererezo gisanzwe gikangurwa kandi kigakwirakwizwa n'amazi ashyushye mbere, hanyuma gishobora gushonga nyuma yo kongeramo amazi akonje kugirango ukonje kandi ukonje;

4) Niba agglomeration no gupfunyika bibaye mugihe cyo guseswa, ni ukubera ko gukurura bidahagije cyangwa icyitegererezo gisanzwe cyongewe kumazi akonje. Muri iki gihe, bigomba gukangurwa vuba. i

5) Niba ibibyimba byabyaye mugihe cyo gusesa, birashobora gusigara bihagaze kumasaha 2-12 (igihe cyihariye kigenwa nuburyo bwo gukemura) cyangwa gukurwaho no gukurura, gukanda, nibindi, cyangwa umubare ukwiye wumukozi wo gusebanya. irashobora kongerwamo. i

Nigute ushobora kumenya ubuziranenge bwa hydroxypropyl methylcellulose byoroshye kandi byihuse?

1) Umweru, nubwo umweru udashobora kumenya niba HPMC yoroshye kuyikoresha, kandi niba ibikoresho byera byongewe mubikorwa byo kubyara, bizagira ingaruka kumiterere yabyo, ariko ibicuruzwa byinshi byiza bifite umweru mwiza.

2) Ubwiza: Ubwiza bwa HPMC mubusanzwe bufite mesh 80 na mesh 100, mesh 120 ni mike, nibyiza nibyiza nibyiza.

3) Itumanaho ryoroheje: HPMC imaze gushyirwa mumazi kugirango ikore colloid ibonerana, reba itumanaho ryayo. Ninini yohereza urumuri, nibyiza, byerekana ko harimo ibidashobora gukemuka muri byo, kandi ihererekanyabubasha rya vertical reaction muri rusange ni nziza. , Reaction ya horizontal ni mbi, ariko ntibisobanuye ko ubwiza bwa reaction ya vertical iruta iya reaction ya horizontal, kandi hariho ibintu byinshi byerekana ubwiza bwibicuruzwa.

4) Uburemere bwihariye: Ninini nini nini, niko iremereye. Iyo hejuru uburemere bwihariye, niko hydroxypropyl iri mubicuruzwa. Iyo hydroxypropyl iri hejuru, niko gufata amazi neza.