Hydroxypropyl methylcellulose-hpmc

I-Hydroxypropyl Methyl Cellulose, eyaziwa nangokuthi i-Hypromellose, i-CelLlose Hydroxypropyll Methyl ether, itholakala ngokukhetha ukotini oluhlanzekile kakhulu ukotini njengezinto eziluhlaza futhi ezifakwe ngaphansi kwezimo ze-alkali.
Igama lesiShayina
Hydroxypropylmethylcellellulose
Igama langaphandle
Hydroxypropyl methyl cellulose
Igama elifushane
I-HPMC Cellulose
Ngaphandle
umhlophe we-powder
Alias ​​English
I-HPMC

Inhloso Eyinhloko

1. Imboni yezokwakha: Njengomenzeli ogcina amanzi kanye ne-retarder ngodaka kasimende, kwenza udaka lukhule. Kusetshenziswe njenge-binder ekunamathisweni kokulungiswa kokulungiswa, i-gypsum, i-putty powder noma ezinye izinto zokwakha ukuthuthukisa ukusakazeka kanye nesikhathi sokusebenza kwangaphambili. Isetshenziswa njenge-paste ye-ceramic tile, imabula, umhlobiso wepulasitiki, njengesithuthukisi sokunamathisela, futhi kunganciphisa futhi inani likasimende. Ukugcinwa kwamanzi kwe-HPMC kungavimba ama-slurry ekuqhekekeni ngenxa yokumiswa ngokushesha okukhulu ngemuva kwesicelo, futhi athuthukise amandla ngemuva kokuqina.
2. Ukukhiqiza i-Ceramic: Kusetshenziswe Kabanzi Njenge-Binder Ekwenziweni Kwemikhiqizo Ye-Ceramic.
I-3. Imboni ye-Coating: Njengomkhulu, i-distriant and stabilizer emkhakheni we-coating, inokuhambisana okuhle emanzini noma izixazululo ze-organic. njenge-remover yokupenda.
4. Ukuphrinta kwe-Ink: Njengomkhulu, ukuhlakazeka kanye ne-stabilizer embonini ye-INK, kunokwenziwa okuhle emanzini noma izixazululo ze-organic.
I-5. Ipulasitiki: Isetshenziswa njenge-ejenti yokukhipha, ithambile, i-lubricant, njll.
I-6. I-Polyvinyl Chloride: Isetshenziswa njenge-distrinsant ekukhiqizeni i-polyvinyl chloride, futhi i-ejenti ebalulekile yokulungiselela i-PVC ngokumiswa kwe-PVC ngokumiswa kwe-PVC ngokumiswa kwe-PVC ngokumiswa kwe-PVC ngokumiswa kwe-PVC ngokumiswa kwe-PVC ngokumiswa kwe-polymerization.
7. Abanye: Lo mkhiqizo usetshenziswa kabanzi ngesikhumba, imikhiqizo yamaphepha, ukulondolozwa kwemifino kanye nezimboni zezindwangu.
8. Imboni yezemithi: Izinto zokuhlanganisa; Izinto zefilimu; Izinsizakusebenza ezilawulwa ngamanani e-polymer ngamalungiselelo wokukhulula okulondoloziwe; abaqinisi; ama-ejenti asolekayo; amabhabhulethi amabhabhulethi; ama-tackifers

Ifomula ye-hydroxypropylm methylcellose formula
Incibilika emanzini futhi iningi le-polar C kanye ne-ethanol / yamanzi, i-propapol / amanzi, i-dichloroethane, njll. Isixazululo samanzi sinomsebenzi ongaphezulu, ukucaca okuphezulu nokusebenza okuzinzile. I-HPMC inempahla ye-gelation eshisayo. Isixazululo esinamanzi somkhiqizo sifuthelwa ukwakha ijeli futhi siqonde, bese sincibilika ngemuva kokupholisa. Ukushisa kwe-gel kwemikhiqizo enokucaciswa okuhlukile kwehlukile. Ukuguquguquka kwe-solubity ngokubonakala. Ukwehlisa ukubonakala, kukhudlwana ukubola. Izici ze-HPMC yemininingwane ehlukile zihlukile. Ukuchithwa kwe-HPMC emanzini akuthinteki ngenani le-PH. Usayizi wezinhlayiyana: Izinga le-Mesh Pass likhulu kune-98.5%. Ubuningi be-Bulk: 0.25-0.70g / (imvamisa cishe ngo-0.4g /), amandla adonsela phansi athile 1.26-1.31. Ukushisa kwe-Discoloration: 180-200 ℃, lokushisa le-carbonization: 280-300 ℃. Inani le-methoxy lingu-19.0% kuye ku-30.0%, futhi inani le-hydroxypropyl lingu-4% kuya ku-12%. I-Viscosity (22 ℃, 2%) 5 ~ 200000MPA.S. Ukushisa kwe-Gel (0.2%) 50-90 ℃. I-HPMC inezici zekhono lokuqina, ukuxoshwa ngosawoti, ukuqina kwe-PH, ukugcinwa kwamanzi, ukuqina okuyisisekelo, izakhiwo ezinhle kakhulu zefilimu, kanye nobubanzi bokumelana kwe-enzyme, ukuhlakazwa kanye nobumbano.
Izakhiwo Zamakhemikhali
1. Ukubukeka: I-powder emhlophe noma ye-off-emhlophe.
2. Ubukhulu bezinhlayiyana; Izinga lokuphasa le-100 Mesh likhulu kune-98.5%; Izinga lokuphasa le-Mesh 50 liyi-100%. Ubukhulu bezinhlayiyana bokucaciswa okukhethekile ngu-40-60 mesh.
3. Ukushisa kwe-Carbonization: 280-300 ℃

Hydroxypropylmethylcellellulose
I-4. I-Density Ebonakalayo: 0.25-0.70g / cm (imvamisa ezungeze i-0.5g / cm), amandla athile adonsela phansi 1.26-1.31.
I-5. Ukushisa kombala okuguqukayo: 190-200 ℃
I-6. Ukungezwani komhlaba
7. I-Solubity: incibilika emanzini kanye nezinye izixazululo, njenge-ethanol / amanzi, i-propanol / Amanzi, njll. Ngokwesilinganiso esifanele. Izisombululo ezinamanzi zisebenza endaweni engaphezulu. Ukucaca okuphezulu nokusebenza okuzinzile. Ukucaciswa okuhlukile kwemikhiqizo kunamazinga okushisa ahlukile we-gel, kanye nezinguquko ze-solubity nge-viscosity. Ukwehlisa ukubonakala, kukhudlwana ukubola. Ukucaciswa okuhlukile kwe-HPMC kunezakhiwo ezihlukile. Ukuchithwa kwe-HPMC emanzini akuthintekanga ngenani le-PH.
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9. I-HPMC nayo inezici zekhono lokuqina, ukumelana nosawoti, i-ash ephansi, ukugcinwa kwamanzi, ukuqina okubucayi, kanye nokuqina okuhle kwe-enzyme, ukungafani kanye nobumbano.
Indlela yokuchithwa
1. Wonke amamodeli angangezwa kulokho okuhlanganiswe ngokuxuba okulomile;
2. Lapho kudingeka ukuthi ingezwe ngqo kwisisombululo esijwayelekile samanzi samanzi okushisa, kungcono ukusebenzisa uhlobo lokuhlakazeka kwamanzi olubandayo. Ngemuva kokungeza, kuvame ukuthatha imizuzu eyi-10-90 ukuqina;
3. Amamodeli ajwayelekile angachithwa ngokuvusa nokusakaza ngamanzi ashisayo kuqala, engeza amanzi abandayo, avuse futhi apholile;
4. Uma kukhona i-agglomeration futhi ukugoqa ngesikhathi sokuncibilika, kungenxa yokuthi ukushukumisa akwanele noma imodeli ejwayelekile ingezwe ngqo emanzini abandayo. Ngalesi sikhathi, kufanele kuvuswe ngokushesha.
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ukuxazulula isinqumo
1 Beka i-alkali fiber ku-kettle yokuthethelwa, engeza i-propelene oxide ne-methyl chloride futhi, futhi uthele ku-50-80 ℃ ngo-5h, ingcindezi ephezulu imayelana ne-1.8MPA. Ngemuva kwalokho engeza inani elifanele le-hydrochloric acid ne-acid oxalic emanzini ashisayo ku-90 ° C ukugeza okuqukethwe ukwandisa ivolumu. Dohydrate nge-centrifuge. Geza kuze kungathathi hlangothi, lapho okuqukethwe kwamanzi okuqukethwe kungaphansi kwama-60%, komisa ngokugeleza komoya okushisayo ku-130 ° C kuya ngaphansi kwama-5%.
Izindlela Zokuhlola
Igama Lendlela: I-Hypromellose-Ukunqunywa Kwe-Hydroxypropopopopopopopopopopopopopopopopopopopopopoxyl-Desun Defention of Hydroxypropopopopopopopopopopopopopopopopopopopopopopopopopopopopopopopolylls
Scope of Isicelo: Le ndlela yamukela indlela ye-hydroxypropoxy yokunquma okuqukethwe yi-hydroxypropoxy eHypromellose.
Le ndlela isebenza kwi-Hypromellose.
Umgomo Wendlela: Bala okuqukethwe kweqembu le-hydroxypropoxy ngokuya nge-HydroxypropoxproxPropoxy Persion Persion Way.
I-Reagent: 1. 30% (G / G) Chromium Trioxide Solution
2. I-Sodium hydroxide titrant (0.02mol / l)
3. Ikhambi lenkomba ye-Phenolphthalein
4. I-sodium bicarbonate
I-5. Dlulisa i-sulfuric acid
6. I-Potassium iodide
7. I-Sodium Thiosulfate Dication Solution (0.02mol / l)
8. Isixazululo senkomba yesitashi
Izinsiza:
Ukulungiswa kwesampula: 1. Isixazululo Sokuthathwa Kwe-Sodium Hydroxide Solution (0.02mol / l)
Ukulungiselela: Thatha u-5.6ml wesisombululo esicacile se-sodium hydroxide, engeza amanzi abandayo asanda kubilika ukwenza i-1000ML.
Ukulinganisa: Thatha cishe i-6g ye-benchmark potassium phrogen phthassium phthalalate yomisiwe ku-105 ℃, unesisindo esinembile, engeza ama-50ml wamanzi abandayo asanda kubilinda, aqhakekaze ukuncibilikisa ngangokunokwenzeka; Faka amaconsi ama-2 wekhambi lenkomba ye-Phenolphthalein, sebenzisa lokhu kubopha. Lapho usondela endaweni yokugcina, i-potassium hydrogen perthalate kufanele ichithwe ngokuphelele, futhi isixazululo kufanele sikhishwe ngombala opinki. Isixazululo ngasinye se-1ML sesixazululo sokuthathwa kweSodium Hydroxide Solution (1mol / l) silingana no-20.42mg we-potassium hydrogen perthalate. Bala ukugcwaliseka kwalesi sixazululo ngokuya ngokusetshenziswa kwalesi sixazululo kanye nenani le-potassium hydrogen phthalate ethathwe. Ngobuningi buhlanjululwe izikhathi ezi-5 ukwenza okuhlushwa 0.02mol / l.
Isitoreji: Beka ebhodleleni lepulasitiki le-polyethylene bese uligcina livaliwe; Kunezimbobo ezi-2 esitobhini, bese kufakwa ishubhu lengilazi emgodini ngamunye.
2. Phenolphthalein Isixazululo Sesixazululo
Thatha i-1g ye-phenolphthalein, engeza i-100ml ye-ethanol ukuze ichithe
3. I-Sodium Thiosulfate Dication Solution (0.02mol / L)
Ukulungiselela: Thatha i-26g ye-sodium thiosulfate kanye ne-0.20g ye-anhydrous sodium carbonate, engeza inani elifanele lamanzi abandayo asanda kubilinda ukuncibilikisa abe yi-1000ml, athinte kahle ngemuva kokuma inyanga eyi-1.
Ukulinganisa: Thatha cishe u-0.15g we-benchmark potassium dichromate omiswe ngo-120 ° C ngokuncibilika, engeza i-aulfute sulfurium acid, afake u-40ml we-sulfuric acid, afake u-40ml we-dulfuric acid, akeze kahle ubeke uphawu; Ngemuva kwemizuzu eyi-10 ebumnyameni, engeza ama-250 ml wamanzi ukuze ulichithe, lapho kuthathwa isihloko sendawo yokugcina, qhubeka ubopha kuze kube yilapho okuluhlaza okwesikhashana okuluhlaza okwesibhakabhaka, futhi okuluhlaza kukhanya. Ukulungisa isivivinyo. I-1ml ngayinye yeSodium Thiosulfate (0.1mol / l) ilingana ne-4.903g ye-potassium dichromate. Bala ukugcwaliswa kwalesi sixazululo ngokuya ngokusetshenziswa kwalesi sixazululo kanye nenani le-potassium dichromate ethathiwe. Ngobuningi buhlanjululwe izikhathi ezi-5 ukwenza okuhlushwa 0.02mol / l.
Uma izinga lokushisa lekamelo lingaphezulu kuka-25 ° C, ikhambi lokuphendula kanye namanzi e-dilution kufanele aphonswe ku-20 ° C.
4. Isixazululo senkomba yesitashi
Thatha u-0.5 g we-soluble Starch, engeza u-5 ml wamanzi uhlanganise kahle, uphinde uthele kancane ungene ku-100 ml wamanzi abilayo, uvuse njengoba kungezwe, qhubeka uphole, bese uthele umphezulu. Lesi sixazululo kufanele sisetshenziswe ohlelweni olusha.
Izinyathelo zokusebenza: Thatha u-0,1 g walo mkhiqizo, ulihlole ngokunembile, ulibeke ku-distillation flask d, bese ufaka i-10 ml ka-30% (G / g) Cadmium Trichloride Solution. Beka amanzi e-Steam ekhiqizela ipayipi b kuya kokuhlangene, bese uxhuma insiza ye-distillation. Ukucwilisa bobabili b no-D kubhavu kawoyela (kungaba yi-glycerin), yenza izinga lamafutha okugeza lihambisane nezinga le-cadmium Trichloride Solution ebhodleleni le-CADMIIM, futhi uma kunesidingo, ukwethula ukugeleza kwalo kwe-bubble ukuze kube njalo nge-1 bubble ngomzuzwana. Ukugeza uwoyela kwakufudunyezwa ku-155 ° C kungakapheli imizuzu engama-30, futhi izinga lokushisa lagcinwa kuze kube ngu-50 ml we-distillate aqoqiwe. I-condenser yasuswa kwikholamu ye-Frackation, icwebezelwe ngamanzi, igezwe futhi ihlanganiswe kwikhambi eliqoqiwe, kwangezwa amaconsi ama-3 we-Phenolphthalein Isixazululo. Qopha i-PH VAIT ye-6.9-7.1 (kulinganiswe ngemitha ye-acidity), qopha ivolumu esetshenzisiwe ye-v1 (ML Qopha endaweni yokugcina nge-Sodium Thiosulfate Dication Solution (0.02mol / L), bese uqopha ivolumu esetshenzisiwe v2 (ml). Kwenziwa enye into engenalutho, kanye namavolumu we-VA ne-VB (ML) wesixazululo esithe xaxa sokuthathwa kwe-sodium hydroxide solution (0.02mol / l) kanye ne-sodium thiosulfate sokuthathwa kwesixazululo (0.02mol / l) kubhalwe ngokulandelana. Bala okuqukethwe kwe-hydroxypropoxy.
Qaphela: "Ukunemba okunokunemba" kusho ukuthi ukukala kufanele kube okunembile kwinkulungwane yesisindo.
Ukusebenza Kwezokuphepha
Ubungozi bezeMpilo
Lo mkhiqizo uphephile futhi awunalo ubuthi, ungasetshenziswa njengesengezo sokudla, awunakho ukushisa, futhi awucasuli ezikhunjeni nakumelwesi ama-mucous. Ngokuvamile kubhekwa njengokuphephile (i-FDA1985), ukuthathwa kwansuku zonke okuvunyelwe yi-25mg / kg (i-FA / WHO 1985), kanye nemishini yokuvikela kufanele igqokwe ngesikhathi sokusebenza.
Umthelela wezemvelo
Gwema ukusakazeka okungahleliwe ukwenza uthuli lundize futhi lubangele ukungcoliswa komoya.
Izingozi Zomzimba Nezemiphakathi: Gwema Ukuxhumana Nemithombo Yemililo, futhi uvikele ukwakheka kwenani elikhulu lothuli endaweni evaliwe ukuvikela izingozi zokuqhuma.
Izinto zokuhamba nezindaba zokugcina
Naka isikrini se-sunscreen, i-rainproof, umswakama, gwema ukukhanya kwelanga okuqondile, futhi ugcine endaweni eyomile.

Inkambu yesicelo
Imboni Yokwakha
1. Usimende usimende
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3. Ukuhlanganiswa kwezinto ezibonakalayo ezinjenge-asbestos: Njenge-ejenti yokumisa okwesikhashana, uketshezi lwenziwe kabusha, futhi futhi nokwenza ngcono amandla okubopha ku-substrate.
I-4. I-Gypsum Cooandation Slurry: Thuthukisa ukugcinwa kwamanzi kanye nokusebenza, futhi uthuthukise ukunamathela ku-substrate.
I-5
I-6
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10. Imikhiqizo yesibili ka usimende kanye no-gypsum: Isetshenziswa njenge-bindesion yokubumba yokubumba kwezinto zokwakha i-hydraulic ezinjengesimende-asbestos ukuthuthukisa i-fluidity futhi uthole imikhiqizo evunyelwe evukiwe.
11. I-Fibrell Wall: Isebenza ngempumelelo njengesigaxa sodonga lwesihlabathi ngenxa ye-anti-enzyme yayo nemiphumela elwa namagciwane.
12. Abanye: Ingasetshenziswa njenge-bubble retainer for opharetha obuncanyana kanye nabasebenza ngo-PC).
imboni yamakhemikhali
1. I-polymerization yeVinyl Chloride neVinylidene: Njengokukhulisa ukumiswa kanye nokuhlakazeka ngesikhathi se-polymerization, kungasetshenziswa kanye ne-hydroxypropyll (PPC) ukulawula ukwakheka kwezinhlayiyana kanye nokusatshalaliswa kwezinhlayiyana.
2. Ukunamathela: Njengokunamathela kwephephadonga, kungasetshenziswa ngokuvamile nge-vinyl acetate latex Paint esikhundleni sesitashi.
I-3. Izibulala-zinambuzane: Uma kungezwe emithini yokubulala izinambuzane kanye nama-herbicides, kungathuthukisa umphumela wokunamathela ngesikhathi sokufafaza.
I-4.
I-5. I-Binder: isetshenziswa njenge-adhesive yokubumba yamapensela namakhrayoni.
Izimonyo
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2. Amazinyo
imboni yokudla
1. I-citrus ekheniwe: ukuvikela ukuthambekela nokuwohloka ngenxa yokubola kwama-glycosides e-citrus ngesikhathi sokugcina ukufeza umphumela wokulondolozwa.
2. Imikhiqizo yezithelo ezibandayo yokudla: engeza eSherbet, i-ICE, njll. Ukwenza ukunambitheka kube ngcono.
3. I-Sauce: Njenge-Emulsuff Stabilizer noma i-ejenti ekhulayo yamasoso ne-ketchup.
I-4. I-coating kanye nokukhazimulayo emanzini abandayo: Isetshenziselwa ukugcinwa kwezinhlanzi ezibandayo, ezingavimba ukuguquguquka nokuwohloka kwekhwalithi. Ngemuva kokuhlanganisa nokukhazimula nge-methyl cellulose noma i-hydroxypropylylylyrule methyl cellulose ikhambi elinamanzi, bese iqhwa eqhweni.