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Ukusetyenziswa kwe-cellulose ether kubanzi kakhulu, kwaye uphuhliso lulonke loqoqosho lwesizwe luya kuqhuba ngqo uphuhliso lweshishini le-cellulose ether. Okwangoku, ukusetyenziswa kwe-cellulose ether eTshayina kugxile kakhulu kumashishini afana nezinto zokwakha,...Funda ngokugqithisileyo»
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Imeko yechungechunge lweshishini: (1) Ishishini eliPhezulu Izinto eziphambili ezifunekayo kwimveliso ye-cellulose ether ziquka umqhaphu ocoliweyo (okanye i-pulp yomthi) kunye nezinye izinyibilikisi zeekhemikhali eziqhelekileyo, ezifana ne-propylene oxide, i-methyl chloride, i-liquid caustic soda, i-caustic soda, i-ethylene oxide, i-toluene kunye ...Funda ngokugqithisileyo»
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Isebenzisa i-cellulose njengezinto eziluhlaza, i-CMC-Na yalungiswa ngendlela enamanqanaba amabini. Eyokuqala yinkqubo ye-alkalization ye-cellulose. I-cellulose isabela ne-sodium hydroxide ukuvelisa i-alkali cellulose, ize emva koko i-alkali cellulose isabela ne-chloroacetic acid ukuvelisa i-CMC-Na, ebizwa ngokuba yi-e...Funda ngokugqithisileyo»
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Imvelaphi kunye nesishwankathelo I-Cellulose ether sisixhobo sekhemikhali esisetyenziswa kakhulu se-polymer esenziwe nge-polymer cellulose yendalo ngonyango lwekhemikhali. Emva kokwenziwa kwe-cellulose nitrate kunye ne-cellulose acetate kwinkulungwane ye-19, iingcali zekhemistri ziye zaphuhlisa uthotho lwee-cellulose derivatives...Funda ngokugqithisileyo»
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Kwishishini lamayeza, i-hypromellose (HPMC, METHOCEL™) ingasetyenziswa njenge-filler, i-binder, i-tablet coating polymer kunye ne-key excipient ukulawula ukukhululwa kwamayeza. I-Hypromellose ibisetyenziswa kwiipilisi kangangeminyaka engaphezu kwama-60 kwaye si-key excipient esetyenziswa kakhulu kwiipilisi ze-hydrophilic gel matrix. Iip...Funda ngokugqithisileyo»
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I-Hydroxyethyl cellulose yinto ebalulekileyo ephuma kwi-cellulose. Ngenxa yeenzuzo zezinto eziluhlaza ezininzi, ezivuselelekayo, ezinokubola, ezingenabungozi, ezihambelana kakuhle ne-biocompatibility, kunye nesivuno esikhulu, uphando kunye nokusetyenziswa kwayo kuye kwatsala ingqalelo enkulu. . Ixabiso le-viscosity libaluleke kakhulu kwi...Funda ngokugqithisileyo»
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Zithini iziphumo ezahlukeneyo ze-cellulose ezahlukeneyo kwi-plaster yaseParis Zombini i-carboxymethyl cellulose kunye ne-methyl cellulose zingasetyenziswa njengee-arhente zokugcina amanzi kwi-plaster, kodwa isiphumo sokugcina amanzi se-carboxymethyl cellulose siphantsi kakhulu kunese-methyl cellulose, kunye ne-carboxymethyl ce...Funda ngokugqithisileyo»
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I-Cellulose yi-polysaccharide eyenza iintlobo ngeentlobo zee-ethers ezinyibilikayo emanzini. Izithambisi ze-Cellulose zii-polymers ezinyibilikayo emanzini ezingezizo i-ionic. Imbali yokusetyenziswa kwayo inde kakhulu, ingaphezulu kweminyaka engama-30, kwaye kukho iintlobo ezininzi. Zisasetyenziswa phantse kuzo zonke iipeyinti ze-latex kwaye zezona ziphambili kwizithambisi...Funda ngokugqithisileyo»
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Zithini iziphumo zobungakanani bevumba kwi-hydroxypropyl methylcellulose: Ukwenziwa kwe-hydroxypropyl methylcellulose: Nyanga i-cotton cellulose ecociweyo nge-lye kwi-35-40°C kangangesiqingatha seyure, cinezela, utyumze i-cellulose, kwaye ukhule kakuhle kwi-35°C, ukuze iqondo eliqhelekileyo le-polymerization ye-a...Funda ngokugqithisileyo»
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Masithethe nge-hydroxypropyl methyl cellulose HPMC kunye nendlela yokulinganisa i-viscosity yayo. I-viscosity apha ibhekisa kwi-viscosity ebonakalayo, ebaluleke kakhulu kwi-hydroxypropyl methyl cellulose. I-Standard. Iindlela eziqhelekileyo zokulinganisa kukulinganisa i-viscosity ejikelezayo, i-capill...Funda ngokugqithisileyo»
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Kwimveliso yezinto zokwakha, ingakumbi i-dry powder mortar, i-cellulose ether idlala indima ebalulekileyo, ingakumbi kwimveliso ye-special mortar (modified mortar), iyinxalenye ebalulekileyo. Indima ebalulekileyo ye-water-soluble cellulose ether kwi-mortar ikakhulu yi-wat yayo egqwesileyo...Funda ngokugqithisileyo»
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I-Cellulose yeyona nto iphambili eludongeni lweeseli zezityalo, kwaye yeyona polysaccharide isasazeke kakhulu kwaye ininzi kakhulu kwindalo, ibangela ngaphezulu kwe-50% yomxholo wekhabhoni kubukumkani bezityalo. Phakathi kwazo, umxholo we-cellulose womqhaphu usondele kwi-100%, eyona ce yendalo icocekileyo...Funda ngokugqithisileyo»