Igisubizo cya HPMC

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

Igisubizo: HPMC ikoreshwa cyane mubikoresho byubaka, gutwikira, ibisigazwa byubukorikori, ububumbyi, ubuvuzi, ibiryo, imyenda, ubuhinzi, kwisiga, itabi nizindi nganda.HPMC irashobora kugabanywamo: icyiciro cyubwubatsi, icyiciro cyibiribwa nicyiciro cyubuvuzi ukurikije imikoreshereze.Kugeza ubu ibyakozwe murugo ahanini ni urwego rwubwubatsi, murwego rwubwubatsi, ingano yifu ya putty nini cyane, hafi 90% ikoreshwa mugukora ifu yimbuto, ibisigaye bikoreshwa mugukora sima na kole.

2, hydroxypropyl methyl selulose (HPMC) igabanijwemo ubwoko butandukanye, ni irihe tandukaniro riri hagati yo gukoresha?

Igisubizo: HPMC irashobora kugabanywa mukanya nubushyuhe bwihuse, ibicuruzwa byihuse, mumazi akonje bikwirakwira vuba, bikabura mumazi, muriki gihe amazi ntagira ububobere, kuko HPMC ikwirakwizwa mumazi gusa, nta gushonga nyabyo.Hafi yiminota 2, ubwiza bwamazi bugenda bwiyongera buhoro buhoro, bukora colloid ibonerana.Shyushya ibicuruzwa biva mu mazi akonje, birashobora kuba mumazi ashyushye, bigatatana vuba, bikabura mumazi ashyushye, kugeza igihe ubushyuhe bugabanutse kugera ku bushyuhe runaka, ubukonje bugaragara buhoro buhoro, kugeza igihe habaye colloid ibonerana.Ubwoko bushyushye burashobora gukoreshwa gusa mubifu ya poro na minisiteri, mumazi ya kole hamwe no gutwikira, birashobora kugaragara ko ari agglomeration phenomenon, ntibishobora gukoreshwa.Guhita ushonga icyitegererezo, urugero rwo gusaba ni rugari ruto, kurambirwa ifu yumwana na minisiteri, no muri kole yamazi hamwe no gutwikira, byose birashobora gukoreshwa, ntugire icyo kirazira.

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

- igisubizo: uburyo bwo gushonga amazi ashyushye: kubera ko HPMC idashonga mumazi ashyushye, bityo HPMC kare irashobora gukwirakwizwa neza mumazi ashyushye, hanyuma igashonga vuba mugihe gikonje, uburyo bubiri busanzwe busobanurwa gutya:

1) Uzuza kontineri amazi ashyushye nkuko ubikeneye hanyuma ubishyuhe kugeza kuri 70 ℃.Hydroxypropyl methyl selulose yongewemo buhoro buhoro munsi, hanyuma HPMC ireremba hejuru y’amazi, hanyuma buhoro buhoro ikora ibishishwa, bikonjeshwa munsi.

2) Ongeramo 1/3 cyangwa 2/3 by'amazi asabwa muri kontineri hanyuma ubishyuhe kuri 70 ℃.Kwirakwiza HPMC ukurikije uburyo 1) gutegura amazi ashyushye;Noneho shyiramo amazi akonje asigaye mumazi ashyushye hanyuma ukonje imvange nyuma yo gukurura.

Uburyo bwo kuvanga ifu: Ifu ya HPMC numubare munini wibindi bikoresho byifu yifu, bivanze byuzuye na blender, hanyuma wongeremo amazi kugirango ushonga, muriki gihe HPMC irashobora gushonga, kandi ntabwo ari agglomerate, kuko buri mfuruka ntoya, ifu ya HPMC nkeya, amazi Azahita ashonga.- Ifu yuzuye ifu nabakora minisiteri bakoresha ubu buryo.[Hydroxypropyl methyl selulose (HPMC) ikoreshwa nkibintu byongera umubyimba hamwe nigikoresho cyo kubika amazi muri pompe yifu.

4, nigute ushobora kumenya ubwiza bwa hydroxypropyl methyl selulose (HPMC) yoroshye kandi itangiza?

Igisubizo: (1) umweru: nubwo umweru udashobora kumenya niba HPMC ari nziza, kandi niba yongewemo mubikorwa byera byera, bizagira ingaruka kumiterere yabyo.Nyamara, ibicuruzwa byinshi byiza bifite umweru mwiza...Ihererekanyabubasha rya reaction ihagaritse muri rusange ni nziza, kandi niy'ibisubizo bya horizontal ni bibi, ariko ntibisobanuye ko ubwiza bw’umusaruro wa reaction ya vertical ari bwiza kuruta ubwa reaction ya horizontal.Hariho ibintu byinshi byerekana ubwiza bwibicuruzwa.(4) Igipimo: uko igipimo kinini, kiremereye ni cyiza.Kurenza major, kubera ko imbere ya hydroxyl propyl yibanze iri murwego rwo hejuru, hydroxyl propyl base yibanze ni ndende, urinde amazi gushaka ibyiza.

5, hydroxypropyl methyl selulose (HPMC) ibishishwa birakwiriye?

- igisubizo: kurambirwa nifu yumwana nibyiza ok ibihumbi 100, bimwe birebire bisabwa muri minisiteri, ushaka ubushobozi bwibihumbi 150 byo gukoresha.Byongeye kandi, HPMC ninshingano zingenzi zo gufata amazi, hagakurikiraho kubyimba.Mu ifu ya putty, mugihe cyose gufata amazi ari byiza, ubukonje buri hasi (ibihumbi 7-80), birashoboka kandi, byanze bikunze, ibishishwa ni binini, kubika amazi ugereranije nibyiza, mugihe ububobere burenze Ibihumbi 100, ubwiza bwo gufata amazi ntabwo ari bwinshi.

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

Igisubizo: Hydroxypropyl ibirimo hamwe nubwiza, abakoresha benshi bita kuri ibi bipimo byombi.Hydroxypropyl irimo byinshi, kubika amazi muri rusange nibyiza.Viscosity, kubika amazi, isano (ariko ntabwo byuzuye) nabyo nibyiza, kandi viscosity, sima ya sima nibyiza gukoresha bimwe.

7, hydroxypropyl methyl selulose (HPMC) ni ibihe bikoresho nyamukuru?

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

8, HPMC mugukoresha ifu ya putty, uruhare nyamukuru, niba kubaho kwa chimie?

Igisubizo: HPMC mu ifu yuzuye, kubyimba, amazi no kubaka inshingano eshatu.Kubyimba: selile irashobora kuba mwinshi kugirango ihagarike, kugirango igisubizo gikomeze kuba kimwe hejuru no munsi yuruhare rwo kurwanya kumanika.Kubika amazi: kora ifu ya putty yumye buhoro, calcium yingirakamaro ya calcium mugikorwa cyamazi.Ubwubatsi: amavuta ya selile, arashobora gukora ifu ya putty ifite ubwubatsi bwiza.HPMC ntabwo yitabira imiti iyo ari yo yose, ariko igira uruhare runini.Ifu yuzuye namazi, kurukuta, ni reaction ya chimique, kubera kubyara ibintu bishya, urukuta rwifu ya putty kumanuka kuva kurukuta, hasi mo ifu, hanyuma ugakoresha, ntabwo ari byiza, kuko yakoze ibintu bishya (calcium karubone).Igice kinini cyifu yifu ya calcium nuruvange rwa Ca (OH) 2, CaO numubare muto wa CaCO3, CaO + H2O = Ca (OH) 2 - Ca (OH) 2 + CO2 = CaCO3 ↓ + H2O Kalisiyumu yumukara muri amazi n'umwuka byakozwe na CO2, calcium karubone, na HPMC amazi gusa, bifasha calcium yumukara mwiza kubyitwaramo neza, ibyayo ntabwo byagize uruhare mubitekerezo.

9.HPMC non-ionic selulose ether, none non-ionic niki?

Igisubizo: Muri rusange, abatari ion ni ibintu bidatera ioni mumazi.Ionisation ni ugutandukanya electrolyte mumashanyarazi yimuka yubusa mumashanyarazi yihariye, nkamazi cyangwa inzoga.Kurugero, umunyu turya burimunsi - sodium chloride (NaCl) ishonga mumazi na ionize kugirango ikore sodium ion yimuka yubusa (Na +) hamwe nubushakashatsi bwiza hamwe na ioni ya chloride (Cl) hamwe nuburyo bubi.Ni ukuvuga, HPMC mumazi ntabwo yitandukanya na ion zashizwemo, ahubwo ibaho nka molekile.

10. Ni ubuhe butumwa bujyanye n'ubushyuhe bwa gel ya hydroxypropyl methyl selulose?

- Igisubizo: Ubushyuhe bwa gel bwa HPMC bufitanye isano na metoxyl, munsi ya vitxyl lower, nubushyuhe bwa gel.

11, ifu yifu yifu na HPMC ntaho bihuriye?

Igisubizo: ifu yuzuye ifu yamashanyarazi cyane kandi ivu rya calcium ivu rifite isano rinini cyane, kandi HPMC ntabwo ifitanye isano nini cyane.Kalisiyumu nkeya ya calcium yumukara hamwe nigipimo kidakwiye cya CaO na Ca (OH) 2 muri calcium yumukara bizatera ifu kugabanuka.Niba hari umubano muto na HPMC, noneho kubika amazi ya HPMC ni bibi, nabyo bizatera ifu.

12, hydroxypropyl methyl selulose amazi akonje kandi ashonga mugikorwa cyo kubyara itandukaniro irihe?

.Ubwoko bwa thermosoluble ntabwo bwakorewe hejuru ya glyoxal.Umubare wa glyoxal ni munini, gutatanya birihuta, ariko ibishishwa biratinda, umubare ni muto, kurundi ruhande.

13, hydroxypropyl methyl selulose (HPMC) impumuro nuburyo bimeze?

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

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

- igisubizo: kurambirwa no gukoresha ifu yumwana: ibisabwa ni munsi, viscosity ibihumbi 100, ok, ni ngombwa kurinda amazi kuba hafi.Porogaramu ya Mortar: ibisabwa cyane, ibisabwa hejuru ya viscosity, ibihumbi 150 kugirango bibe byiza.Porogaramu ya kole: gukenera ibicuruzwa ako kanya, ubukonje bwinshi.

15.Ni ubuhe buryo bita hydroxypropyl methyl selulose?

- IGISUBIZO: Hydroxypropyl Methyl Cellulose, Amagambo ahinnye nka HPMC cyangwa MHPC, cyangwa Hydroxypropyl Methyl Cellulose;Cellulose hydroxypropyl methyl ether;Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether.

16.HPMC mugushira ifu ya putty, ifu ya putty bubble niyihe mpamvu?

Igisubizo: HPMC mu ifu yuzuye, kubyimba, amazi no kubaka inshingano eshatu.Kutitabira ikintu icyo ari cyo cyose.Impamvu zitera ibibyimba: 1, amazi menshi.2, hepfo ntabwo yumye, hejuru yikibaho, nanone byoroshye kubyimba.

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

.Mubisanzwe, urwego rwo gusimburwa ni 1.6 ~ 2.0, kandi gukemura biratandukanye nurwego rwo gusimburwa.Biri muri nonionic selulose ether.

.Mubisanzwe ongeramo umubare munini, ubwiza buto, viscosity, igipimo cyo gufata amazi ni kinini.Muri byo, ingano y’inyongeramusaruro igira uruhare runini mu gufata amazi, kandi ibishishwa ntabwo bihwanye no gufata amazi.Igipimo cyo guseswa ahanini giterwa nuburinganire bwo hejuru nuburinganire bwa selile.Muri ethers nyinshi za selile, methyl selulose na hydroxypropyl methyl selulose igipimo cyo gufata amazi kiri hejuru.

(2) Methyl selulose irashobora gushonga mumazi akonje, bigoye gushonga mumazi ashyushye.Igisubizo cyamazi cyacyo kirahagaze neza muri pH = 3 ~ 12.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, bigira ingaruka zikomeye kumyubakire ya minisiteri.

(4) Methyl selulose igira uruhare rugaragara mukubaka no gufatira minisiteri.“Adhesion” hano yerekeza ku gufatira umukozi kumva hagati y'igikoresho na substrate y'urukuta, aribyo kurwanya inkweto za minisiteri.Adhesion nini, kurwanya shear ya minisiteri nini, imbaraga zisabwa nabakozi mugikorwa cyo gukoresha nazo nini, kandi kubaka minisiteri ni bibi.Mu bicuruzwa bya selile ya selile, gufatira methyl selulose kurwego ruciriritse.

HPMC ya hydroxypropyl methyl selulose, itunganywa nipamba nyuma yo kuvura alkali, hamwe na okiside ya propylene na chloromethane nkumuti wa etherifying, binyuze murukurikirane rwibisubizo kandi bikozwe muri ether ya selile idafite ionic.Urwego rwo gusimbuza muri rusange ni 1.2 ~ 2.0.Imiterere yacyo iratandukanye nigipimo cyimikorere na hydroxypropyl.

(1) Hydroxypropyl methyl selulose irashobora gushonga byoroshye mumazi akonje, bigoye gushonga mumazi ashyushye.Nyamara, ubushyuhe bwa gelation mumazi ashyushye biragaragara ko burenze ubwa methyl selile.Ubushobozi bwa methyl selulose mumazi akonje nabwo bwatejwe imbere cyane.

.Ubushyuhe nabwo bugira ingaruka ku bwijimye.Ubushuhe buragabanuka uko ubushyuhe bwiyongera.Ariko ubukonje bwacyo hejuru yubushyuhe buri munsi yubwa methyl selile.Igisubizo kirahamye iyo kibitswe mubushyuhe bwicyumba.

.Caustic soda namazi yindimu ntacyo bihindura kumiterere yabyo, ariko alkali irashobora kwihutisha umuvuduko wacyo kandi igatera ubwiza.Hydroxypropyl methyl selulose ihagaze neza kumunyu rusange, ariko iyo ubunini bwumuti wumunyu mwinshi, ubwiza bwumuti wa hydroxypropyl methyl selulose ukunda kwiyongera.

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.Nka alcool ya polyvinyl, krahisi ether, kole yimboga nibindi.

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18. Ni iki gikwiye kwitabwaho mugushira mubikorwa isano iri hagati yubukonje nubushyuhe bwa HPMC?

Igisubizo: Ubukonje bwa HPMC buragereranywa nubushyuhe, nukuvuga, ubukonje bwiyongera hamwe no kugabanuka kwubushyuhe.Iyo tuvuze ubwiza bwibicuruzwa, tuba tuvuze ubwiza bwa 2% byibicuruzwa mumazi kuri dogere selisiyusi 20.

Mubikorwa bifatika, mubice bifite ubushyuhe butandukanye 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 mugihe cyo gukuraho, ibyiyumvo bizaba biremereye.

Ubucucike buciriritse: 75000-100000 bukoreshwa cyane muri putty.

Impamvu: Kubika amazi meza.

Ubukonje bukabije: 150000-200000 bukoreshwa cyane cyane mubice bya polystirene insulasiyo ya minisiteri ya rubber hamwe na vitrified beads insulation mortar.

Impamvu: viscosity nyinshi, minisiteri ntabwo yoroshye kugabanuka, gutemba kumanikwa, kunoza ubwubatsi.

Ariko muri rusange nukuvuga, uko ubukonje buri hejuru, niko gufata amazi neza, bityo inganda nyinshi za minisiteri yumye, urebye ikiguzi, koresha selile yo mu bwoko bwa viscosity selulose (75000-100000) kugirango usimbuze selile na selile nkeya (20000-40000) kugirango ugabanye umubare y'inyongera.