Hydroxypropyl Methylcellulose HPMC ni iki?

Hydroxypropyl Methylcellulose HPMC, izwi kandi ku izina rya Cellulose ether, ni polymerike, ikora amazi-elegitoronike ikomoka kuri selile. Yakozwe muguhindura selile isanzwe, nikintu cyibanze cyimiterere yibimera, binyuze murukurikirane rwimiti.

Urwego rwinganda hydroxypropyl methylcellulose itandukanijwe nubwiza. Mubisanzwe bikoreshwa ni amanota akurikira (mubijyanye na viscosity).

Ubukonje buke: 400 bukoreshwa cyane cyane murwego rwo kwipimisha, ariko muri rusange bitumizwa mu mahanga. Impamvu: ubukonje buke, nubwo kubika amazi ari bibi, ariko kuringaniza ni byiza, ubwinshi bwa minisiteri ni bwinshi.

Hagati kandi yijimye cyane: 20000-70000 ikoreshwa cyane cyane kumatafari ya tile, agent ya caulking, minisiteri idashobora kumeneka, minisiteri yubushyuhe bwa minisiteri, nibindi. Impamvu: gukora neza, amazi make, nubucucike bwa minisiteri.

Ni ubuhe buryo bukoreshwa bwa hydroxypropyl methylcellulose (HPMC)?

HPMCikoreshwa cyane mubikoresho byubwubatsi, gutwikira, ibisigazwa byubukorikori, ububumbyi, ubuvuzi, ibiryo, imyenda, ubuhinzi, kwisiga, itabi nizindi nganda. HPMC irashobora kugabanywamo: kubaka, ibiryo na farumasi. Kugeza ubu, inyubako nyinshi zakozwe mu gihugu ziri murwego rwubwubatsi. Mu cyiciro cyubwubatsi, ingano yifu ya putty ni nini cyane, hafi 90% ikoreshwa mugukora ifu ya putty, naho iyindi ikoreshwa nka sima na sima.

Hariho ubwoko bwinshi bwa hydroxypropyl methylcellulose (HPMC). Ni irihe tandukaniro mu mikoreshereze yabo?

HPMCirashobora kugabanwa mubice-bishonga kandi bishyushye-bishonga, ibicuruzwa byihuta. Iyo ikwirakwijwe vuba mumazi akonje, ibura mumazi. Muri iki gihe, amazi ntagira ubwiza kuko HPMC ikwirakwizwa mu mazi gusa kandi nta gushonga nyako. Hafi yiminota 2, ubwiza bwamazi bwagiye bwiyongera buhoro buhoro, bukora colloid ibonerana. Ibicuruzwa bishyushye bishyushye, mugihe cyamazi akonje, birashobora gukwirakwizwa vuba mumazi ashyushye bikabura mumazi ashyushye. Iyo ubushyuhe bugabanutse kugera ku bushyuhe runaka, ubwiza bugaragara buhoro buhoro kugeza igihe habaye ibibyimba bibonerana. Ubwoko bushyushye burashobora gukoreshwa gusa muri poro ya pome na minisiteri. Muri kole y'amazi no gusiga irangi, hazabaho ibintu byo gufunga, bidashobora gukoreshwa. Iraboneka muburyo butandukanye bwo gusaba, muri poro ya poro na minisiteri, kimwe no mumazi ya kole hamwe na coatings. Nta kwivuguruza.

Nubuhe buryo bwo gusesa hydroxypropyl methylcellulose (HPMC)?

Uburyo bwo gushonga amazi ashyushye: Kubera ko HPMC idashonga mumazi ashyushye, HPMC yambere irashobora gukwirakwizwa kimwe mumazi ashyushye hanyuma igashonga vuba mugihe cyo gukonja. Uburyo bubiri busanzwe busobanurwa gutya: 1), bushyizwe muri kontineri Injiza amazi akenewe hamwe nubushyuhe bugera kuri 70 ° C. Hydroxypropyl methylcellulose yongeweho buhoro buhoro hamwe no gukurura buhoro, hanyuma HPMC ireremba hejuru y’amazi, hanyuma haza kubaho buhoro buhoro, maze ibishishwa bikonjeshwa no gukurura. 2) Ongeramo 1/3 cyangwa 2/3 byamazi asabwa mubwato no gushyushya 70 ° C, gukwirakwiza HPMC ukurikije 1) gutegura amazi ashyushye; hanyuma ukongeramo amazi asigaye mumazi ashyushye Muri slurry, imvange yarakonje nyuma yo gukurura. Uburyo bwo kuvanga ifu: ifu ya HPMC ivangwa ninshi mubindi bintu byifu yifu, bivangwa neza na blender, hanyuma bigashonga namazi. Muri iki gihe, HPMC irashobora guseswa nta agglomeration, kuko buri nguni ntoya ifite HPMC nkeya. Ifu izahita ishonga iyo uhuye namazi. - Ubu buryo bukoreshwa nifu ya putty nabakora minisiteri. Hydroxypropyl methylcellulose (HPMC) ikoreshwa nkigikoresho cyinshi kandi kigumana amazi muri minisiteri.

Nigute ushobora gusuzuma ubuziranenge bwa hydroxypropyl methylcellulose (HPMC) byoroshye kandi byihuse?

. Nyamara, ibicuruzwa byiza ahanini byera. (2) Ubwiza: Ubwiza bwa HPMC mubusanzwe bufite mesh 80 na mesh 100, naho mesh 120 ni mike. Nibyiza, nibyiza muri rusange. . Nibyiza kohereza, ikibazo ntigishobora gukemuka. . Imashini ihagaritse ifite uburyo bwiza bwo gutembera, kandi reaction ya horizontal iba mibi, ariko ntibisobanuye ko ubwiza bwa reaction ya vertical iruta ubw'icyayi. Ubwiza bwibicuruzwa bugenwa nimpamvu nyinshi. (4) Uburemere bwihariye: Nuburemere bwihariye, uburemere buremereye. Umubare ni munini, muri rusange kubera ko ibiri mu itsinda rya hydroxypropyl ari byinshi, kandi ibikubiye mu itsinda rya hydroxypropyl ni byinshi, gufata amazi ni byiza.

Ni ubuhe bwoko bwa hydroxypropyl methylcellulose (HPMC) mu ifu yuzuye?

Ingano yicyiciro cyubwubatsi HPMCikoreshwa mubikorwa bifatika iratandukanye nikirere, ubushyuhe, ubwiza bwa calcium y ivu ryaho, amata yifu yifu n "ubuziranenge busabwa nabakiriya". Muri rusange, hagati ya 4 kg na 5 kg. Kurugero: ahantu hakonje ifu yifu, benshi bashyira kg 5; Agace gashyushye ahanini ni kg 5 mu cyi na 4.5 kg mu gihe cy'itumba.

Ni ubuhe bwenge bwa hydroxypropyl methylcellulose (HPMC)?

Ifu yuzuye urukuta muri rusange ni 100.000, kandi minisiteri yumye isabwa kuba hejuru. Birakenewe gukoresha 150.000. Byongeye kandi, uruhare runini rwa HPMC ni ukugumana amazi, hagakurikiraho kubyimba. Mu ifu ya putty, mugihe cyose gufata amazi ari byiza, ibishishwa biri hasi (70.000-80,000), birashoboka. Birumvikana ko ibishishwa ari binini, kugereranya amazi ni byiza. Iyo ibishishwa birenga 100.000, ingaruka zo kwifata mu gufata amazi Ntabwo ari nini cyane.

Nibihe bintu nyamukuru byerekana tekinike ya hydroxypropyl methylcellulose (HPMC)?

Hydroxypropyl ibirimo hamwe nubwiza, abakoresha benshi bahangayikishijwe nibi bipimo byombi. Niba hydroxypropyl irimo byinshi, kubika amazi nibyiza muri rusange. Viscosity, kubika amazi, isano (aho kuba byimazeyo), hamwe nubukonje bwinshi, byiza muri sima ya sima.

Nibihe bikoresho nyamukuru bya hydroxypropyl methylcellulose (HPMC)?

Ibikoresho by'ibanze bya hydroxypropyl methylcellulose (HPMC): ipamba itunganijwe, methyl chloride, okiside ya propylene, ibindi bikoresho fatizo, nka soda ya caustic, aside, toluene, isopropanol.

Ni uruhe ruhare nyamukuru rwa HPMC mugukoresha ifu ya putty?

HPMC ifite uruhare rwo kubyimba, kubika amazi no kubaka ifu yuzuye. Kubyimba: Cellulose irashobora kubyimba kugirango ihagarike, igumane igisubizo kimwe, kandi irwanye sag. Kubika amazi: Ifu ya putty yumishwa gahoro gahoro, kandi calcium ifasha ivu ikora mugihe cyamazi. Ubwubatsi: Cellulose igira amavuta yo kwisiga, ishobora gutuma ifu ya putty igira imikorere myiza. HPMC ntabwo yitabira imiti iyo ari yo yose kandi igira uruhare runini. Ifu yuzuye n'amazi, kurukuta, ni reaction ya chimique. Kubera imiterere yibintu bishya, ifu ya putty kurukuta ikurwa kurukuta, igahinduka ifu, hanyuma ikongera gukoreshwa, ntabwo izakora, kuko hashyizweho ibintu bishya (calcium karubone). ). Ibice byingenzi bigize ifu ya calcium yivu ni: Ca (OH) 2, imvange ya CaO hamwe na CaCO3 nkeya, CaO + H2O = Ca (OH) 2-Ca (OH) 2 + CO2 = CaCO3 + H2O calcium ivu muri amazi n'umwuka Mubikorwa bya CO2, karubone ya calcium ikorwa, kandi HPMC igumana amazi gusa, igafasha kwitwara neza kwa calcium yivu, kandi ntigira uruhare mubitekerezo ubwabyo. 

HPMC ni selile itari ionic selile, nonese non-ion niki?

Muri rusange, non-ion nikintu kitari mumazi kandi ntigisanzwe. Ionisation bivuga uburyo electrolyte igabanywa mo ion yimuka yubusa mumashanyarazi yihariye nkamazi cyangwa inzoga. Kurugero, umunyu uribwa burimunsi, sodium chloride (NaCl), ionis kugirango ubyare umusaruro wa sodium ion yubusa (Na +) ushizwemo neza na chloride (Cl) ikarishye nabi. Nukuvuga ko HPMC ishyirwa mumazi kandi ntigabanyamo ion zashizwemo, ariko ibaho muburyo bwa molekile.

Ubushyuhe bwa gel bwa hydroxypropyl methylcellulose ni ubuhe?

Ubushyuhe bwa gel bwa HPMC bufitanye isano nibirimo. Hasi ya mikorerexyxy, nubushyuhe bwa gel.

Ifu yifu ya putty hari aho ihuriye na HPMC?

Ifu yifu ya putty ifitanye isano ahanini nubwiza bwa calcium yumukara, kandi ntaho ihuriye na HPMC. Kalisiyumu nkeya ya calcium yivu hamwe nigipimo kidakwiye cya CaO na Ca (OH) 2 muri calcium yivu bizatera gutakaza ifu. Niba bifitanye isano na HPMC, noneho niba gufata amazi ya HPMC ari bibi, bizatera no gutakaza ifu.

Ni irihe tandukaniro riri hagati yubwoko bwamazi akonje nubwoko bushyushye bwa hydroxypropyl methylcellulose mugikorwa cyo kubyara? Ubwoko bw'amazi akonje ya HPMC buravurwa hejuru ya glyoxal, kandi igahita ikwirakwizwa mumazi akonje, ariko ntabwo yashonga. Iyo ububobere bumaze kuba hejuru, buraseswa. Ifishi ishushe ishyushye ntabwo igaragara hamwe na glyoxal. Iyo ingano ya glyoxal ari nini, gutatana birihuta, ariko ibishishwa bitinda. 

Nuwuhe mpumuro ya hydroxypropyl methylcellulose (HPMC)?

HPMC yakozwe nuburyo bwa solvent ikoresha alcool ya toluene na isopropyl nkibishishwa. Niba gukaraba atari byiza cyane, hazabaho uburyohe busigaye.

Nigute ushobora guhitamo hydroxypropyl methylcellulose (HPMC) kubwimpamvu zitandukanye?

Gukoresha ifu ya putty: ibisabwa ni bike, viscosity ni 100.000, nibyiza, icyangombwa nukugumya amazi neza. Gukoresha minisiteri: ibisabwa byinshi, ubukonje bwinshi, 150.000 nibyiza. Porogaramu ya kole: Ukeneye ibicuruzwa byubwoko bwihuse, ubwiza bwinshi.

Ni irihe zina rya hydroxypropyl methylcellulose?

Hydroxypropyl methylcellulose, HydroxypropylMethylCellulose Amagambo ahinnye: HPMC cyangwa MHPC alias: hypromellose; selile hydroxypropyl methyl ether; Hypromellose, Cellulose ether, 2-hydroxypropylmethyl Cellulos yose hamwe. Cellulose hydroxypropyl methyl ether, Hyprolose.

Gukoresha HPMC mu ifu yuzuye, niyihe mpamvu itera ifuro mu ifu yuzuye?

HPMC ifite uruhare rwo kubyimba, kubika amazi no kubaka ifu yuzuye. Ntukagire uruhare mubitekerezo byose. Impamvu yigituba: 1, amazi ni menshi. 2, igice cyo hasi ntabwo cyumye, kuraho gusa hejuru, biroroshye no kubira ifuro.　

Urukuta rw'imbere n'inyuma rushyiramo ifu y'ifu?

Ifu yimbere yimbere ifu yifu: calcium iremereye 800KG yumukara wa calcium 150KG (etarike ether, icyatsi kibisi, ubutaka bwa penmine, aside citric, polyacrylamide, nibindi birashobora gutoranywa neza kugirango wongere)

Ifu yo hanze yometseho ifu: sima 350KG, calcium iremereye 500KG, umucanga wa quartz 150KG, ifu ya latex 8-12KG, selulose ether 3KG, etarike ether 0.5KG, fibre yibiti 2KG

Ni irihe tandukaniro riri hagati ya HPMC na MC?

MC ni methyl selile. Nyuma yuko ipamba itunganijwe ivuwe hamwe na alkali, chloromethane ikoreshwa nkibikoresho bya etherifying, hanyuma hakurikiraho reaction kugirango hategurwe selile. Urwego rwo gusimbuza muri rusange ni 1,6 kugeza kuri 2.0, kandi urwego rwo gusimburana rutandukanye bitewe nubushake. Nibya selile nonionic selile.

. Mubisanzwe, ubwinshi bwiyongereye ni bunini, ubwiza ni buto, kandi ubwiza ni bunini, kandi igipimo cyo gufata amazi ni kinini. Umubare wongeyeho ufite uruhare runini ku kigero cyo gufata amazi, kandi urwego rwijimye ntirugereranywa n’igipimo cyo gufata amazi. Igipimo cyo guseswa biterwa ahanini nurwego rwo guhindura isura ya selile ya selile hamwe nubwiza bwibice. Muri ethers ya selile yavuzwe haruguru, methylcellulose na hydroxypropylmethylcellulose bifite igipimo kinini cyo gufata amazi.

(2) Methylcellulose irashonga mumazi akonje, kandi biragoye gushonga mumazi ashyushye. Igisubizo cyamazi kirahagaze neza murwego rwa pH = 3 ~ 12. Ifite guhuza neza na krahisi, guar gum nizindi surfactants nyinshi. Iyo ubushyuhe bugeze ku bushyuhe bwa gelation, ibintu bibaho.

(3) Ihinduka ry'ubushyuhe rizagira ingaruka zikomeye ku kigero cyo gufata amazi ya methyl selile. Mubisanzwe, uko ubushyuhe buri hejuru, niko gufata amazi ari bibi. Niba ubushyuhe bwa minisiteri burenze 40 ° C, kugumana amazi ya methyl selulose bizagenda byangirika cyane, bigira ingaruka zikomeye kumikorere ya minisiteri.

(4) Methyl selulose igira ingaruka zikomeye kumikorere no gufatira minisiteri. “Kwifata” hano bivuga imbaraga zifatika zumvwa hagati yigikoresho cyo gukoresha umukozi hamwe nu rukuta, ni ukuvuga ubukana bwa minisiteri. Gufatanya ni binini, kurwanya shear ya minisiteri nini, imbaraga zisabwa numukozi mugihe cyo gukoresha nazo nini, kandi imikorere ya minisiteri irakennye.

Methylcellulose adhesion ni intera mubicuruzwa bya selile. HPMC ni hydroxypropylmethylcellulose, ikaba ari selile ivanze ya selile itavanze na ether yateguwe nuruhererekane rwibisubizo ukoresheje okiside ya acetal na methyl chloride nkumuti wa etherifingi nyuma yo guhanagura ipamba inoze. Urwego rwo gusimburwa muri rusange ni 1.2 kugeza 2.0. Kamere yacyo iratandukanye bitewe nikigereranyo cyibintu bya vitxyl hamwe na hydroxypropyl.

(1) Hydroxypropyl methylcellulose irashobora gushonga byoroshye mumazi akonje, kandi birashobora kugorana gushonga mumazi ashyushye. Nyamara, ubushyuhe bwa gelation mumazi ashyushye burenze cyane ugereranije na methyl selulose. Gushonga mumazi akonje nabyo ni byiza cyane kuruta methyl selulose. -

. Ubushyuhe nabwo bugira ingaruka ku bwiza bwabwo, ubushyuhe burazamuka, kandi ubukonje buragabanuka. Nyamara, ububobere bwayo bufite ubushyuhe buri munsi ya methyl selile. Igisubizo cyacyo gihamye mubushyuhe bwicyumba.

(3) Hydroxypropyl methylcellulose ihamye kuri acide na base, kandi igisubizo cyamazi cyacyo kirahagaze neza murwego rwa pH = 2 ~ 12. Soda ya Caustic n'amazi ya lime ntabwo bigira ingaruka nyinshi kumiterere yabyo, ariko alkali yihutisha umuvuduko wacyo kandi ikongera ububobere. Hydroxypropyl methylcellulose ifite ituze ryumunyu rusange, ariko iyo ubunini bwumuti wumunyu mwinshi, ubwiza bwumuti wa hydroxypropyl methylcellulose bikunda kwiyongera.

.

. Nka alcool ya polyvinyl, ibinyamisogwe ether, amase yimboga nibindi nkibyo.

(6) Hydroxypropyl methylcellulose ifata cyane kuri minisiteri kuruta methyl selile.

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HPMC ububobere nubushuhe bwubushuhe, niki gikwiye kwitonderwa mubikorwa bifatika?

Ubukonje bwa HPMC buragereranywa nubushyuhe, ni ukuvuga ko ubukonje bwiyongera hamwe nubushyuhe bugabanuka. Ubukonje bwibicuruzwa dukunze kuvuga ni 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, ubukonje bwa selile buziyongera, kandi iyo bwakuweho, ikiganza cyumva kizaba kiremereye. Ubucucike buciriritse: 75000-100000 Ahanini bikoreshwa muburyo bubi Impamvu: kugumana amazi ubukonje bwinshi: 150000-200000 bikoreshwa cyane cyane mubutaka bwa polystirene granule insulation na minisiteri ya vitamine. Impamvu: viscosity nyinshi, mortar ntabwo byoroshye kugwa Yego, sag, kubaka neza. Ariko muri rusange, uko ubukonje buri hejuru, niko gufata amazi neza, bityo ibihingwa byinshi bya minisiteri yumye bifata ikiguzi, bigasimbuza selile yo hagati na selile nkeya hamwe na selile yo hagati (75000-100000). (20000-40000) kugabanya amafaranga yongeyeho.