I-HPMC egqoke ijazi le-skim

I-Hydroxypropylylykyl methyl cellulose (HPMC) i-viscosity yejazi le-skim?

- Impendulo: Ijazi le-skim lilungile i-HPMC 100000CPS, eminye ende yemfuneko ngodaka, funa amandla ayi-150000cps okusebenzisa. Ngaphezu kwalokho, i-HPMC yindima ebaluleke kakhulu yokugcinwa kwamanzi, elandelwa ukuqina. Egqoke ijazi, inqobo nje uma ukugcinwa kwamanzi kulungile, i-viscosity iphansi (7-80000), kuyenzeka futhi, ukubonwa kungcono, lapho i-viscoty ingaphezulu kwe-100 Izinkulungwane, ukubonakala kokugcinwa kwamanzi akuyona into eminingi.

Yiziphi izinkomba zobuchwepheshe eziphambili ze-hydroxypropyllylylyll methyl celtulese (HPMC)?

Impendulo: Okuqukethwe kwe-Hydroxypropyl kanye ne-viscosity, iningi labasebenzisi linakekela ngalezi zinkomba ezimbili. Okuqukethwe kwe-Hydroxypropp kuphakeme, ukugcinwa kwamanzi ngokuvamile kungcono. I-Viscosity, ukugcinwa kwamanzi, isihlobo (kodwa hhayi ngokuphelele) kungcono futhi, futhi i-viscosity, nosimende kasimende kungcono ukusebenzisa amanye.

I-Hydroxypropyl Methyl Cellulose (HPMPC) Yiziphi izinto eziphambili eziluhlaza?

Impendulo: I-Hydroxypropyl methyl cellulose (HPMC) izinto eziphambili ezilukhuni: ukotini ocwengekile, i-chloromethane, i-propelene oxide, ezinye izinto eziluhlaza, i-alkali, i-acid, i-acid, i-acid, i-toluene, i-isopropyl alcohol nokunye.

I-HPMC egqoke ijazi le-skim kuhlelo lokusebenza, indima eyinhloko, noma ikhemikhali?

Impendulo: I-HPMC egqoke ijazi le-skim, ukuqina, amanzi nokwakhiwa kwezindima ezintathu. Ukuqina Ukugcinwa kwamanzi: Yenza ijazi le-skim lome kancane, i-ruxium enesingatha esenzweni sokusabela kwamanzi. Ukwakhiwa: I-CelLelose Lubrication, ingenza ijazi le-skim libe nokwakhiwa okuhle. I-HPMC ayihlanganyeli kunoma yikuphi ukusabela kwamakhemikhali, kepha idlala indima esekelayo kuphela. I-Skim Coat namanzi, odongeni, ukusabela kwamakhemikhali, ngenxa yesizukulwane sezinto ezintsha, udonga lwejazi le-skim phansi odongeni, bese lusebenzisa, lube yinto entsha (calcium carbonate). Izici eziphambili zeGrey Calcium Powder yilezi: CA (OH) 2, I-CAO nenani elincane le-Caco3 ingxube ye-caco3, i-CAO + H2O = CA (OH (OH (OH (OH (OH (OH (OH (OH (OH (OH) Futhi umoya ngaphansi kwesenzo se-CO2, ukwakheka kwe-calcium carbonate, kanye ne-HPMC kuphela amanzi, asizayo mpunga ukusabela, okwangempela akuzange kubambe iqhaza kunoma yikuphi ukusabela.

I-HPMC ayilona i-ether engeyona eye-moulsose, ngakho-ke yini okungeyona eye-ionic?

A: Ukukhuluma ngokuvamile, okungewona ama-ion kuyizinto ezingasho lutho emanzini. I-Ionization ukuhlukaniswa kwe-electrolyte kuma-ion athutha ama-free-shushumbisa kwi-solvent ethile, njengamanzi noma utshwala. Isibonelo, usawoti esiwudlayo nsuku zonke - i-sodium chloride (i-NACL) ayinciphise emanzini kanye nama-ionizes ukukhiqiza ama-sodium ions ahamba nge-sodium ions (NA +) enecala elifanele nama-chloride ion (cl) ngecala elingelona iphutha. Okungukuthi, i-HPMC emanzini ayihlukaniswa ngama-ions amakhokho, kepha ikhona njengama-molecule.

Yini lokushisa le-gelature ye-hydroxypropyllylylylylylylylylylylylylylylylyll methyl celtulose ehlobene nalo?

Impendulo: Izinga lokushisa le-gel le-HPMC lihlobene nokuqukethwe kwe-methoxyl. Okuqukethwe kwe-methoxyl kungukuthi, okuphezulu kwe-gel lokushisa yilo.

I-Skim Coat Powder ne-HPMC Abukho ubuhlobo?

Impendulo: I-skim coat yehla impuphu ikakhulukazi futhi ikhwalithi ye-ash calcium inobudlelwano obukhulu kakhulu, futhi i-hpmc ayinabo ubudlelwano obukhulu kakhulu. Ukuqukethwe okuphansi kwe-calcium ye-grey calcium kanye nengxenye engafanele ye-cao ne-ca (oh) 2 in grey calcium izodala ukulahla i-powder. Uma kunobudlelwano ne-HPMC, khona-ke ukugcinwa kwamanzi okumpofu kwe-HPMC nakho kuzodala ukulahleka kwempuphu.

Uyini umehluko phakathi kwamanzi abandayo ancibilikayo kanye ne-hot soluble hydroxyproppropyllylyl methyl cellulose kwinqubo yokukhiqiza?

- Impendulo: Uhlobo lwe-HPMC olubandayo lwamanzi olusheshayo lungemva kokwelashwa komhlaba okukhona, okufakwa emanzini abandayo ngokushesha kwahlakazeka, kepha kungachithwa ngempela, kususwe phezulu, kuyachithwa. Uhlobo lwe-thermosoluble aluzange luphathwe yi-glyxal. Inani le-Gyoxal likhulu, ukuhlakazeka kuyashesha, kepha i-viscosity iyahamba kancane, inani lincane, kunalokho.

Yini nge-hydroxypropylylylylylylylyllose (HPMC) ephunga?

- Impendulo: I-HPMC ekhiqizwa indlela ye-solvent yenziwe ngoTolune notshwala be-isopropyl. Uma ukugeza kungakuhle kakhulu, kuzoba nokunambitheka okusalayo.

Ukusetshenziswa okuhlukile, ukuthi ungayikhetha kanjani i-hydroxyproppropylyl methyl cellulose (HPMC)?

- Impendulo: Yiba nesithukuthezi ngokusetshenziswa kwe-powder yezingane: Isidingo siphansi, i-viscoty singukuthi, i-viscoty 100000, kulungile, kubalulekile ukuvikela amanzi ukuze ube seduze. Isicelo sikaDitare: Izidingo eziphakeme, izidingo eziphezulu ze-viscosity, 150000 ukuba ngcono. Isicelo seglue: Isidingo semikhiqizo esheshayo, i-viscosity ephezulu.

Yini elinye igama le-hydroxypropylylylylylym methyl cellulose?

- Impendulo: I-Hydroxypropyl Methylcellulose, ifushaniswe njenge-HPMC noma i-MHPC, noma i-Hydroxypropylyl methyl cellulose; Cellulose hydroxypropyll methyl ether; I-Hypromellose, cellulose, 2-hydroxypropyly methyl celtuleose ether.

I-HPMC ekusetshenzisweni kwejazi le-skim, yisiphi isizathu skim coat bubble?

Impendulo: I-HPMC egqoke ijazi le-skim, ukuqina, amanzi nokwakhiwa kwezindima ezintathu. Ukungahlanganyeli kunoma yikuphi ukusabela. Izimbangela zama-bubble: 1, amanzi amaningi kakhulu. 2, ezansi akomile, ngaphezulu kwesendlalelo sokuhlanza, kulula futhi ukuqubuka.

Ifomula ye-skim yodonga lwangaphakathi neyangaphandle?

- Impendulo: I-Interior Wall Skim Coat: I-calcium 800kg grey calcium 150kg (isitashi ether, i-run runtu, i-citric acid, i-polylamide ingangezwa ngokufanele)

Ijazi elingaphandle le-skim skim: usimende 350kg calcium 500kg Quartz isihlabathi esingu-150kg satexfula i-8-12kg Cellulose ether 3.5kg starch 2kg

Uyini umehluko phakathi kwe-HPMC ne-MC?

- Impendulo: I-MC iyi-mettyl cellulose, eyenziwe nge-cellulose ether ngochungechunge lokuphendula nge-chloride ye-methane njenge-ejenti ethembisayo ngemuva kwe-alkali. Ngokuvamile, izinga lokufakwa esikhundleni ngu-1.6 ~ 2.0, kanye ne-solubality liyahlukahluka ngezinga lokufakwa esikhundleni. Ingeye-ether ye-annonic cellulose.

. Ngokuvamile engeza inani elikhulu, ubuwula obuncane, i-viscosity, izinga lokugcina amanzi liphezulu. Phakathi kwazo, inani lezengezo linethonya elikhulu kunawo wonke ekugcinweni kwamanzi, futhi i-viscosity ayihambelani nokugcinwa kwamanzi. Izinga lokuchithwa ikakhulukazi lincike ezingeni lokuguqulwa komhlaba nobunzima bezinhlayiyana ze-cellulose. Kulezi zithathela ezingenhla ze-celluLose, i-methyl cellulose kanye ne-hydroxypropylylth methyl cellulose amanzi okugcinwa kwamanzi aphezulu.

(2) I-methyl celtulese iyancibilika emanzini abandayo, okunzima ukuncibilikisa emanzini ashisayo. Isixazululo saso esinamanzi sizinzile kakhulu ngaphakathi kwe-PH = 3 ~ 12. Inokuhambisana okuhle nge-starch, gum ye-guanidine kanye nokuguquguquka okuningi. I-Gelation yenzeka lapho izinga lokushisa lifinyelela izinga lokushisa le-gelation.

(3) Ukuguqulwa kwezinga lokushisa kuzothinta kakhulu isilinganiso sokugcinwa kwamanzi se-methyl cellulose. Ngokuvamile, izinga lokushisa eliphakeme, elibi kakhulu nokugcinwa kwamanzi. Uma izinga lokushisa lodaka lidlula ama-40 ℃, ukugcinwa kwamanzi kwe-methyl cellulose kuzoba kubi kakhulu, okuthinta kakhulu ukusungulwa kodaka.

(4) I-methyl cellulose inethonya elisobala ekukhiqizweni nasekunamathisweni kodaka. "Adhesion" lapha kubhekiswa ekuhlolweni okuzwakala yilesi sisebenzi phakathi kwethuluzi nodonga substrate, okungukumelana nokuphikiswa kodaka kodaka. Ukunamathelisa kukhulu, ukumelana kwama-shuar ngodaka kukhulu, amandla afunwa yizisebenzi kwinqubo yokusetshenziswa nawo inkulu, futhi ukwakhiwa kodaka kumpofu. Emikhiqizweni ye-cellulose ether, ukunqwabelanisa kwe-methyl cellulose kusezingeni eliphakathi.

I-HPMC HYDROXYPROPYLL Methyl Cellulose, icwengeke ngokotini ngemuva kokwelashwa kwe-Alkali, nge-chloromenethane njenge-ejenti ethembisa, ngochungechunge lokuphendula kanye nokwenziwa kwe-nonic cellulose ehlanganisiwe. Izinga lokufakwa esikhundleni ngokuvamile i-1.2 ~ 2.0. Izakhiwo zalo ziyehluka ngengxenye ye-methoxy ne-hydroxypropylyl.

. Kodwa-ke, izinga lokushisa layo le-gelatution emanzini ashisayo ngokusobala liphakeme kunaleso se-methyl cellulose. I-solubility ye-methyl cellulose emanzini abandayo nayo yathuthukiswa kakhulu.

. Izinga lokushisa libuye lithinta ukubonakala. I-Viscosity iyancipha njengoba izinga lokushisa likhuphuka. Kepha i-viscocity yayo imiphumela yokushisa ephezulu iphansi kunaleyo ye-methyl cellulose. Isixazululo sizinzile lapho zigcinwa emazingeni okushisa asekamelweni.

. Amanzi we-caustic kanye nama-lime anomthelela omncane kwizakhiwo zawo, kepha i-alkali ingasheshisa izinga layo lokuchithwa futhi ithuthukise i-viscosity. Hydroxypropyl methyl cellulose is stable to general salts, but when the concentration of salt solution is high, the viscosity of hydroxypropyl methyl cellulose solution tends to increase.

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. Njengotshwala be-polyvinyl, isitashi ether, glue yemifino nokunye.

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Yini okufanele inakeke ekusetshenzisweni okungokoqobo mayelana nobudlelwano phakathi kokuvunywa kanye nokushisa kwe-HPMC?

Impendulo: I-viscosity ye-HPMC ilingana kakhulu nezinga lokushisa, okusho ukuthi, i-viscosity inyuka ngokuncipha kwezinga lokushisa. Lapho sikhuluma ngokubonakala komkhiqizo, sikhuluma nge-viscosity ka-2% womkhiqizo emanzini kuma-degree angama-20.

Ngohlelo lokusebenza olusebenzayo, ezindaweni ezinemibono emikhulu yokushisa phakathi kwehlobo nobusika, kufanele kuphawulwe ukuthi kunconywa ukusebenzisa i-viscotive ephansi ebusika, okulungele ukwenziwa. Ngaphandle kwalokho, lapho izinga lokushisa liphansi, ukubonakala kwe-cellulose kuzokwanda, futhi lapho kusongelwa, izizwa zizoba nzima.

I-Viscosity Ephakathi: 75000-100000 ikakhulukazi isetshenziselwa ukubeka ama-putty

Isizathu: Ukugcinwa kwamanzi okuhle

I-Viscosity ephezulu: I-HPMC 150000-200000 isetshenziselwa ikakhulukazi i-PolyStyrererene incration incration incrate powder powder impahla kanye nokuvinjwa kobuhlalu be-buds invation.

Isizathu: Ukuvuleka okuphezulu, udaka akulula ukwehlisa, ukugeleza okulengayo, ukuthuthukisa ukwakhiwa.

Kepha ngokuvamile ekhuluma, ukukhuphuka okuphezulu, ukugcinwa kwamanzi, ukucubungula amafektri amaningi okomuntu, kucatshangelwa izindleko, sebenzisa okubonakalayo okuphakathi kwe-hpmc celtulose (700-40000) ukunciphisa inani lokungezwa.