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Embonini yezemithi, i-hypromellose (HPMC, METHOCEL™) ingasetshenziswa njenge-filler, i-binder, i-tablet coating polymer kanye ne-key excipient ukulawula ukukhishwa kwemithi. I-Hypromellose ibilokhu isetshenziswa kumaphilisi iminyaka engaphezu kwengu-60 futhi iyi-key excipient esetshenziswa kakhulu kumaphilisi e-hydrophilic gel matrix. Amaningi ama-p...Funda kabanzi»
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I-Hydroxyethyl cellulose iyinto ebalulekile etholakala ku-cellulose. Ngenxa yezinzuzo zemithombo eminingi yezinto zokusetshenziswa, evuselelekayo, ebolayo, engenaboli, ehambisana kahle nezinto eziphilayo, kanye nesivuno esikhulu, ucwaningo kanye nokusetshenziswa kwayo kudonsele ukunaka okukhulu. . Inani le-viscosity libaluleke kakhulu...Funda kabanzi»
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Yimiphi imiphumela ehlukene ye-cellulose ehlukene ku-plaster yaseParis. Zombili i-carboxymethyl cellulose kanye ne-methyl cellulose zingasetshenziswa njengezinto zokugcina amanzi ku-plaster, kodwa umphumela wokugcina amanzi we-carboxymethyl cellulose uphansi kakhulu kunowe-methyl cellulose, kanye ne-carboxymethyl ce...Funda kabanzi»
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I-Cellulose iyi-polysaccharide eyakha izinhlobo ezahlukene zama-ether ancibilikayo emanzini. Ama-cellulose thickeners angama-polymer ancibilikayo emanzini angewona ama-ionic. Umlando wokusetshenziswa kwawo mude kakhulu, ungaphezu kweminyaka engama-30, futhi kunezinhlobo eziningi. Asetshenziswa cishe kuwo wonke amapende e-latex futhi ayindlela eyinhloko yama-thickeners...Funda kabanzi»
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Iyini imiphumela yobukhulu bephunga ku-hydroxypropyl methylcellulose: Ukwenziwa kwe-hydroxypropyl methylcellulose: Phatha i-cellulose yekotini ecolisisiwe nge-lye ku-35-40°C isigamu sehora, cindezela, uchoboze i-cellulose, bese ukhula kahle ku-35°C, ukuze izinga elimaphakathi lokupholimitha kwe-a...Funda kabanzi»
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Ake sixoxe nge-hydroxypropyl methyl cellulose HPMC nokuthi singalinganisa kanjani i-viscosity yayo. I-viscosity lapha ibhekisela ku-viscosity ebonakalayo, okuwuphawu olubalulekile ku-hydroxypropyl methyl cellulose. Okujwayelekile. Izindlela ezivamile zokulinganisa ukulinganisa i-viscosity ejikelezayo, i-capill...Funda kabanzi»
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Ekukhiqizweni kwezinto zokwakha, ikakhulukazi udaka oluyimpuphu eyomile, i-cellulose ether idlala indima ebalulekile, ikakhulukazi ekukhiqizweni kodaka olukhethekile (udaka oluguquliwe), luyingxenye ebalulekile. Indima ebalulekile ye-cellulose ether encibilika emanzini kudaka ngokuyinhloko iwuku...Funda kabanzi»
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I-Cellulose iyisakhi esiyinhloko sezindonga zamaseli ezitshalo, futhi iyi-polysaccharide esakazeke kakhulu futhi eningi kakhulu emvelweni, equkethe okungaphezu kuka-50% kokuqukethwe kwekhabhoni embusweni wezitshalo. Phakathi kwazo, okuqukethwe kwe-cellulose kukotini kucishe kube ngu-100%, okuyi-ce yemvelo emsulwa kakhulu...Funda kabanzi»
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1) Ukusetshenziswa okuyinhloko kwe-cellulose ether yezinto zokwakha Insimu yezinto zokwakha iyinsimu eyinhloko yesidingo se-cellulose ether. I-Cellulose ether inezakhiwo ezinhle kakhulu njengokuqina, ukugcinwa kwamanzi, kanye nokulibaziseka, ngakho-ke isetshenziswa kabanzi ukuthuthukisa nokwenza ngcono i-morta exubile esele ilungile...Funda kabanzi»
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Udaka oluzilinganisa luyindwangu yempuphu exutshwe kahle eyomile eyakhiwe izithako ezahlukahlukene ezisebenzayo, ezingasetshenziswa ngemuva kokuxubana namanzi endaweni. Ngemva kokusakazwa kancane nge-scraper, kungatholakala indawo ephansi eyisicaba. Ijubane lokuqina liyashesha, futhi ungahamba phezu kwalo zingakapheli amahora angama-24...Funda kabanzi»
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I-Hydroxyethylcellulose HEC iyi-polymer engeyona i-ionic encibilikayo emanzini ashisayo nabandayo. Uchungechunge lwe-Hydroxyethylcellulose HEC lunezinhlobonhlobo eziningi ze-viscosities, futhi izixazululo zamanzi zonke ziyi-non-Newtonian fluids. I-Hydroxyethyl cellulose iyisengezo esibalulekile ekukhiqizeni kwamakhemikhali kwansuku zonke...Funda kabanzi»
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1. Ukulawula Ukuqina I-hydroxypropyl methylcellulose ene-viscosity ephezulu ayikwazi ukukhiqiza i-cellulose ephezulu kakhulu ngokuyihlanza nge-vacuum bese ifakwa esikhundleni sayo nge-nitrogen. Kodwa-ke, uma ithuluzi lokulinganisa i-oxygen encane lingafakwa eketheni, ukukhiqizwa kwe-viscosity kungalawulwa ngokwenziwa. 2. Ukusetshenziswa...Funda kabanzi»