Hydroxypropyl methyl selulose ibibazo bisanzwe

1, ni ubuhe buryo bukoreshwa bwa hydroxypropyl methyl selulose (HPMC)?

HPMCikoreshwa cyane mubikoresho byubaka, gutwikira, ibisigazwa byubukorikori, ububumbyi, ubuvuzi, ibiryo, imyenda, ubuhinzi, kwisiga, itabi nizindi nganda. HPMC irashobora kugabanywamo: icyiciro cyubwubatsi, urwego rwibiryo hamwe nicyiciro cyubuvuzi ukoresheje. Kugeza ubu, ibyiciro byinshi byubwubatsi bwo murugo, mubyiciro byubwubatsi, ingano yifu ya putty nini, hafi 90% ikoreshwa mugukora ifu yimbuto, ibisigaye bikoreshwa mugukora sima na kole.

2, hydroxypropyl methyl selulose (HPMC) igabanijwemo byinshi, ni irihe tandukaniro mugukoresha?

HPMC irashobora kugabanywa muburyo bwibisubizo byihuse nubwoko bwibisubizo bishyushye, ibicuruzwa byubwoko bwibisubizo byihuse, bikwirakwira vuba mumazi akonje, bikabura mumazi, muriki gihe amazi ntagira ububobere, kuko HPMC ikwirakwizwa mumazi, nta guseswa nyabyo. Hafi yiminota 2, ubwiza bwamazi bwiyongera buhoro buhoro, bikora colloid ibonerana. Ibicuruzwa bishushe bishyushye, mumazi akonje, birashobora gukwirakwira vuba mumazi ashyushye, bikabura mumazi ashyushye, mugihe ubushyuhe bugabanutse kubushyuhe runaka, ubukonje bugaragara buhoro buhoro, kugeza igihe habaye colloid ibonerana. Igisubizo gishyushye kirashobora gukoreshwa gusa muri poro yifu na minisiteri, mumazi ya glue hamwe n irangi, hazabaho ibintu byitsinda, ntibishobora gukoreshwa. Ako kanya SOLUTION MODEL, URUPAPURO RWO GUSABA NUBUGENDO Buke, MU KUBESHWA N'IMBARAGA Z'ABANA NA MORTAR, KANDI MURI LIQUID GLUE NA COATING, BOSE BASHOBORA GUKORESHA, NTA BIKORWA.

3, hydroxypropyl methyl selulose (HPMC) uburyo bwo gukemura ibibazo bifite ubwo?

Uburyo bwo gushonga amazi ashyushye: Kuberako HPMC idashonga mumazi ashyushye, bityo HPMC kare irashobora gukwirakwizwa mumazi ashyushye, hanyuma igashonga vuba iyo ikonje, uburyo bubiri busanzwe busobanurwa gutya:

1) Shira amazi asabwa mubikoresho hanyuma ubishyuhe kugeza kuri 70 ℃. Buhoro buhoro ongeramo hydroxypropyl methylcellulose munsi yo gukurura buhoro, HPMC yatangiye kureremba hejuru y’amazi, hanyuma buhoro buhoro ikora ibibyimba, munsi yo gukonjesha gukonjesha.

2), ongeramo umubare ukenewe wa 1/3 cyangwa 2/3 byamazi muri kontineri, hanyuma ushushe kuri 70 ℃, ukurikije uburyo bwa 1), gukwirakwiza HPMC, gutegura amazi ashyushye; Noneho shyiramo amazi asigaye asigaye mumashanyarazi ashyushye, koga hanyuma ukonje imvange.

Uburyo bwo kuvanga ifu: Ifu ya HPMC numubare munini wibindi bikoresho byifu yifu, bivanze neza na blender, nyuma yo kongeramo amazi kugirango bishonge, noneho HPMC irashobora gushonga muriki gihe, ariko ntibisabane, kuko buri mfuruka ntoya, ifu ya HPMC nkeya gusa , amazi azahita ashonga. - Ifu yuzuye ifu ninganda zikora minisiteri zikoresha ubu buryo. Hydroxypropyl methyl selulose (HPMC) ikoreshwa nkibikoresho byongera umubyimba wamazi muri minisiteri yifu.

4, ni ubuhe buryo bworoshye kandi bwihuse bwo kumenya ubwiza bwa hydroxypropyl methyl selulose (HPMC)?

. Nyamara, ibicuruzwa byiza ahanini byera.

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. Ubucucike bwa reaction ya vertical muri rusange nibyiza, reaction ya horizontal iba mibi, ariko ntishobora kwerekana ko ubwiza bwumusaruro wa reaction ya vertical iruta iy'umusaruro wa reaction ya horizontal, ubwiza bwibicuruzwa bugenwa nimpamvu nyinshi.

(4) uburemere bwihariye: uko uburemere bwihariye, buremereye nibyiza. Kurenza ibyingenzi, muri rusange kubera ko ibikubiye muri hydroxypropyl ari byinshi, hydroxypropyl irimo byinshi, noneho kubika amazi nibyiza.

5, hydroxypropyl methyl selulose (HPMC) mubunini bwifu ya putty?

HPMC mubikorwa nyabyo bya dosiye, ukurikije ikirere cyikirere, ubushyuhe, ubwiza bwa calcium yaho ya calcium, ifu yifu yifu n "" ibyifuzo byabakiriya byubuziranenge ", kandi bifite bitandukanye. Muri rusange, hagati y'ibiro bine na bitanu. Kurugero: Beijing ifu yuzuye, ahanini shyira kg 5; Muri Guizhou, inyinshi muri zo ni kg 5 mu cyi na 4.5 kg mu gihe cy'itumba. Ubwinshi bwa Yunnan ni buto, muri rusange kg 3 -4 kg nibindi.

6, hydroxypropyl methyl selulose (HPMC) ubwiza buke bingana iki?

KUBESHWA N'UBUBASHA BW'ABANA NIBISANZWE Ibihumbi 100 BYIZA, IBISABWA MORTAR NIBINTU BYINSHI, USHAKA UBUSHAKASHATSI BW'IBIHUMBI 150. Byongeye kandi, uruhare runini rwa HPMC ni ukubika amazi, hagakurikiraho kubyimba. Ifu yuzuye, mugihe cyose gufata amazi ari byiza, ubukonje buri hasi (ibihumbi 7-80), birashoboka kandi, byanze bikunze, ibishishwa ni binini, kugumana amazi ugereranije nibyiza, mugihe ububobere burenze Ibihumbi 100, viscosity ntacyo igira ku gufata amazi.

7, hydroxypropyl methyl selulose (HPMC) ni ibihe bipimo nyamukuru bya tekiniki?

Hydroxypropyl ibirimo hamwe nubwiza, abakoresha benshi bahangayikishijwe nibi bipimo byombi. Hydroxypropyl irimo byinshi, kubika amazi muri rusange nibyiza. Viscosity, kubika amazi, isano (ariko ntabwo byuzuye) nabyo nibyiza, hamwe nubwiza, muri sima ya sima koresha neza.

8, hydroxypropyl methyl selulose (HPMC) ibikoresho fatizo nyamukuru niki?

Hydroxypropyl methyl selulose (HPMC) ibikoresho nyamukuru: ipamba itunganijwe, chloromethane, okiside ya propylene, ibindi bikoresho fatizo, ibinini alkali, aside, toluene, inzoga ya isopropyl nibindi.

9, HPMC mugukoresha ifu ya putty, ni uruhe ruhare nyamukuru, yaba chimie?

HPMC mu ifu yuzuye, kubyimba, gufata amazi no kubaka inshingano eshatu. Kubyimba: Cellulose irashobora kubyimbagana kugirango ikine ihagarikwa, kugirango igisubizo gikomeze kimwe hejuru no munsi y'uruhare rumwe, anti flow amanitse. Kubika amazi: kora ifu ya putty yumye gahoro gahoro, calcium ivu ya calcium ikora munsi yamazi. Ubwubatsi: Cellulose ifite amavuta yo gusiga, irashobora gukora ifu ya putty ifite ubwubatsi bwiza. HPMC ntabwo yitabira imiti iyo ari yo yose, igira uruhare gusa. Ifu ya putty yongewemo amazi, kurukuta, ni reaction ya chimique, kuko hariho ibisekuru byibintu bishya, ifu ya putty kurukuta kumanuka kuva kurukuta, hasi ikabamo ifu, hanyuma bigakoreshwa, ntibikiriho, kuko byashizeho a ibikoresho bishya (calcium karubone). Ibice byingenzi bigize ifu ya calcium yumukara ni: Ca (OH) 2, CaO hamwe nuruvange ruto rwa CaCO3, CaO + H2O = Ca (OH) 2 - Ca (OH) 2 + CO2 = CaCO3 ↓ + H2O ivu rya calcium mumazi n'umwuka mubikorwa bya CO2, gushiraho karubone ya calcium, na HPMC gusa kubika amazi, ivu rya calcium ivu ifasha neza, ibyayo ntabwo byagize uruhare mubitekerezo.

10, HPMC itari ionic selulose ether, noneho non-ionic niki?

Muri rusange, nonionic nikintu kidatera ionize mumazi. Ionisiyoneri ni inzira electrolyte igabanyijemo ion zigenda zidegembya mumashanyarazi yihariye, nk'amazi cyangwa inzoga. Kurugero, sodium ya chloride (NaCl), umunyu turya burimunsi, ushonga mumazi na ionize kugirango ubyare umusaruro wa sodium ion yubusa (Na +) ushizwemo neza na ioni ya chloride (Cl) zishyirwaho nabi. Muyandi magambo, HPMC mumazi ntabwo yigabanyamo ion zashizwemo, ahubwo ibaho nka molekile.

11, hydroxypropyl methylcellulose gel ubushyuhe kandi bifitanye isano niki?

Ubushyuhe bwa HPMC bufitanye isano nuburyo bukubiyemo, munsi ya metxyxy lower, nubushyuhe bwa gel higher.

12. Haba hari isano hagati yifu ya putty na HPMC?

Ifu yifu yifu nubwiza bwa calcium bifite isano ikomeye, kandi HPMC ntabwo ifitanye isano cyane. Kalisiyumu nkeya ya calcium hamwe nu kigereranyo cya CaO, Ca (OH) 2 mu ivu rya calcium ntibikwiye, bizatera ifu igabanuka. Niba ifite aho ihuriye na HPMC, noneho kubika amazi ya HPMC ni bibi, bizanatera ifu kugabanuka. Kubwimpamvu zihariye, nyamuneka reba ikibazo 9.

13, hydroxypropyl methylcellulose ubwoko bukonje bwamazi akonje nubwoko bushyushye muburyo bwo kubyaza umusaruro, itandukaniro irihe?

Ubwoko bwa HPMC bukonje bwamazi ni nyuma yo kuvura hejuru ya glyoxal, mumazi akonje akwirakwira vuba, ariko ntabwo ashonga rwose, ibishishwa hejuru, birashonga. Ubwoko bwokubura ubushyuhe ntabwo bwakorewe hejuru ya glyoxal. Ingano ya glyoxal nini, gutatanya birihuta, ariko ibishishwa biratinda, ingano ni nto, kurundi ruhande.

14, hydroxypropyl methyl selulose (HPMC) ifite umunuko wibiri gukorwa?

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

15, imikoreshereze itandukanye, nigute ushobora guhitamo hydroxypropyl methyl selulose (HPMC)?

GUSHYIRA MU BIKORWA BY'ifu: ibisabwa ni bike, viscosity ni ibihumbi 100, nibyiza, icyangombwa nukugumya amazi neza. Gukoresha minisiteri: ibisabwa ni byinshi, ibisabwa ni viscosity nyinshi, ibihumbi 150 bigomba kuba byiza. Gukoresha kole: ukeneye ibicuruzwa ako kanya, ubukonje bwinshi.

16, hydroxypropyl methylcellulose alias ni iki?

Hydroxypropyl Methyl Cellulose, Icyongereza: Hydroxypropyl Methyl Cellulose ahinnye: HPMC cyangwa MHPC alias: Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Cellulose hydroxypropyl Methyl ether Hypromellose, 2-hydroxypropylmethyl Cellulose ether. Cellulose hydroxypropyl Methyl ether Hyprolose.

17, HPMC mugukoresha ifu ya putty, ifu ya putty bubble niyihe mpamvu?

HPMC mu ifu yuzuye, kubyimba, gufata amazi no kubaka inshingano eshatu. Kutitabira reaction iyo ari yo yose. Impamvu yibibyimba: 1, amazi ashyiramo byinshi. 2, hepfo ntabwo yumye, hejuru hanyuma usibanganye urwego, nabyo byoroshye kubyimba.

18. Ifu yuzuye ifu yinkuta zimbere ninyuma?

Ifu yuzuye kurukuta rwimbere: 800KG ya calcium iremereye na 150KG ya calcium yumukara (etarike ether, icyatsi kibisi, ubutaka bwa peng, aside citric na polyacrylamide irashobora kongerwamo uko bikwiye)

Ifu yo hanze yimbuto ifu: sima 350KG calcium iremereye 500KG quartz umucanga 150KG ifu ya latx 8-12kg selulose ether 3KG ibinyamisogwe ether 0.5kg fibre yibiti 2KG

19. Ni irihe tandukaniro riri hagati ya HPMC na MC?

MC ni methyl selulose, ipamba itunganijwe nyuma yo kuvura alkali, hamwe na methane chloride nka mitiweli ya etherification, binyuze muburyo butandukanye bwo gukora selile. Mubisanzwe, urwego rwo gusimburwa ni 1.6 ~ 2.0, kandi gukemura biratandukanye nurwego rwo gusimburwa. Nibintu bitari ionic selulose ether.

. Mubisanzwe ongeramo umubare munini, ubwiza buto, viscosity, igipimo kinini cyo gufata amazi. Muri byo, ingano yongewe ku gipimo cyo gufata amazi igira ingaruka nyinshi, ubukonje n’urwego rwo gufata amazi ntabwo bihuye n’umubano. Igipimo cyo guseswa ahanini biterwa nuburinganire bwo hejuru hamwe nuburinganire bwa selile. Muri selile ya selile yavuzwe haruguru, methyl selulose na hydroxypropyl methyl selulose igipimo cyo gufata amazi kiri hejuru.

. Ifite guhuza neza na krahisi, guanidine gum na surfactants nyinshi. Gelation ibaho iyo ubushyuhe bugeze ku bushyuhe bwa gelation.

(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 ℃, kugumana amazi ya methyl selulose bizaba bibi cyane, bikagira ingaruka zikomeye ku iyubakwa rya minisiteri.

(4) Methyl selulose igira uruhare rugaragara mukubaka no gufatira minisiteri. Hano, "adhesion" bivuga imbaraga zifatika zumvwa hagati yigikoresho cyo gukoresha umukozi hamwe na substrate y'urukuta, ni ukuvuga kurwanya inkweto za minisiteri. Umutungo ufatika ni munini, kurwanya shear ya minisiteri ni nini, kandi imbaraga zisabwa n'abakozi mugikorwa cyo gukoresha nazo nini, bityo imitungo yo kubaka minisiteri ikennye. Mubicuruzwa bya selile ya selile, methyl selulose ifata iri murwego rwo hagati.

HPMC ya hydroxypropyl methyl selulose, ikozwe mu ipamba itunganijwe nyuma yo kuvura alkalisation, hamwe na okiside ya propylene na chloromethane nka etherifying, binyuze mu ruhererekane rw'ibisubizo kandi bikozwe muri ether ya selile idafite ionic. Impamyabumenyi yo gusimburwa muri rusange ni 1.2 ~ 2.0. Imiterere yacyo igira ingaruka ku kigereranyo cyibirimo na hydroxypropyl.

(1) hydroxypropyl methyl selulose ishonga mumazi akonje, amazi ashyushye ashonga azahura ningorane. Ariko ubushyuhe bwa gelation mumazi ashyushye buri hejuru cyane ugereranije na methyl selile. Ubushobozi bwa methyl selulose mumazi akonje nabwo buratera imbere cyane.

. Ubushyuhe nabwo buzagira ingaruka ku bwiza bwabwo, ubushyuhe bwiyongera, ubukonje buragabanuka. Nyamara, ubukonje bwubushyuhe bwo hejuru buri munsi yubwa methyl selile. Igisubizo kirahamye iyo kibitswe mubushyuhe bwicyumba.

. Soda ya Caustic n'amazi y'indimu nta ngaruka nini bigira ku miterere yabyo, ariko alkali irashobora kwihutisha umuvuduko wacyo kandi ikanoza ubwiza bwa pin. Hydroxypropyl methyl selulose ifite ituze kumunyu rusange, ariko iyo ubunini bwumuti wumunyu mwinshi, ubwiza bwumuti wa hydroxypropyl methyl selulose ukunda kwiyongera.

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. Nka alcool ya polyvinyl, ibinyamisogwe ether, amase y'ibiti n'ibindi.

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Ni iki kigomba kwitonderwa mugushira mubikorwa isano iri hagati yubukonje nubushyuhe bwa HPMC?

Ubukonje bwa HPMC buragereranywa n'ubushyuhe, ni ukuvuga ko ubwiza bwiyongera hamwe no kugabanuka k'ubushyuhe. Iyo tuvuze ubwiza bwibicuruzwa, tuba dushaka kuvuga ibisubizo byo gupima igisubizo cyamazi cya 2% mubushyuhe bwa dogere selisiyusi 20.

Mubikorwa bifatika, mubice bifite itandukaniro rinini ryubushyuhe hagati yizuba nimbeho, hagomba kwitonderwa icyifuzo cyo gukoresha ubukonje buke ugereranije nimbeho, bifasha cyane kubaka. Bitabaye ibyo, iyo ubushyuhe buri hasi, ubwiza bwa selile buziyongera, mugihe cyo gukuraho, kumva bizaba biremereye.

Ubucucike buciriritse: 75000-100000 bukoreshwa cyane muri putty

Impamvu: gufata neza amazi

Ubukonje bwinshi: 150000-200000 bukoreshwa cyane cyane mubice bya polystirene ifu yumuriro wa minisiteri yubushyuhe hamwe namasaro yikirahure.

Impamvu: viscosity nyinshi, mortar ntabwo byoroshye kugabanuka, gutemba kumanikwa, kunoza ubwubatsi.

Ariko muri rusange, uko ubukonje bugenda bwiyongera, niko gufata amazi bizaba byiza, bityo inganda nyinshi za minisiteri yumye zitekereza ikiguzi, hamwe na selile yo hagati (75,000-100000) kugirango isimbuze selile nkeya (20.000-40000) kugirango igabanye umubare inyongera.