Iindaba
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Kutheni le nto i-cellulose ether isetyenziswa kakhulu kwi-excipients zamayeza?
Abancedisi bamachiza ngabancedisi kunye nezongezo ezisetyenziselwa ukuveliswa kwamayeza kunye nemigqaliselo, kwaye ziyingxenye ebalulekileyo yamalungiselelo amayeza.Njengomathiriyeli wendalo wepolymer, i-cellulose ether iyabola, ayinatyhefu, kwaye inexabiso eliphantsi, njenge-sodium carboxymethyl cellu...Funda ngokugqithisileyo -
Ngaba uyazi malunga ne-hydroxypropyl methylcellulose yesityalo se-capsules ethambileyo kunye ne-colloid mill yayo?
Okwangoku, izixhobo ezivuthiweyo zezityalo ze-capsules ziyi-hydroxypropyl methylcellulose (HPMC) kunye ne-pululan, kunye ne-hydroxypropyl starch nayo isetyenziswa njengezinto eziluhlaza.Ukususela ekuqaleni kwe-2010s, i-HPMC isetyenziswe kwishishini lokuvelisa i-capsule yesityalo saseTshayina, kwaye isekelwe kuyo ...Funda ngokugqithisileyo -
Ngaba uyayazi ukusebenza kwe-hydroxypropyl methylcellulose?
IHydroxypropyl methylcellulose luhlobo lwe-non-ionic cellulose exutywe ne-ether.Ngokungafaniyo ne-ionic methyl carboxymethyl cellulose exutywe ne-ether, ayisebenzi kunye neentsimbi ezinzima.Ngenxa yemilinganiselo eyahlukeneyo yomxholo we-methoxyl kunye nomxholo we-hydroxypropyl kwi-hydroxypropyl methylcellulose kunye ne-viscos eyahlukeneyo ...Funda ngokugqithisileyo -
Ivumba le-hydroxypropyl methylcellulose liwuchaphazela njani umgangatho?
Ziziphi iimpembelelo zesayizi yevumba kwi-hydroxypropyl methylcellulose: I-synthesis ye-hydroxypropyl methylcellulose: Phatha i-cotton cellulose ecocekileyo nge-lye kwi-35-40 ° C isiqingatha seyure, cofa, utyumze i-cellulose, kunye nobudala ngokufanelekileyo kwi-35 ° C, ukuze iqondo lomndilili wepolymerization efunyenweyo...Funda ngokugqithisileyo -
Ziziphi iingenelo zokusebenzisa i-hydroxypropyl methylcellulose njenge-capsule engenanto?
Le mveliso yi-2-hydroxypropyl ether methyl cellulose, eyimveliso ye-semi-synthetic.Inokuveliswa ngeendlela ezimbini: (1) Emva kokunyanga iilitha zomqhaphu okanye iifiber zeplanga zomthi nge-caustic soda, zixutywe nekloromethane kunye ne-epoxy Propane isabela, icocwe kwaye icolwe ukuze ifumane;(2) ...Funda ngokugqithisileyo -
Ziziphi izinto ezithathwe kwisityalo ezifanelekileyo ukuveliswa kwee-capsules ezinzima ezingenanto?
Kwimbali yekhulu leminyaka yee-capsules, i-gelatin isoloko igcina isikhundla sayo njengento eqhelekileyo ye-capsule ngenxa yoluhlu olubanzi lwemithombo, iipropati ezizinzileyo zomzimba kunye neekhemikhali, kunye nokusebenza okugqwesileyo kokusebenza.Ngokunyuka kokuthanda kwabantu ii-capsules, hollo...Funda ngokugqithisileyo -
Isetyenziswa njani iHypromellose (HPMC) kwiipilisi zematrix zokukhululwa okwandisiweyo?
Kwishishini lamachiza, i-hypromellose (i-HPMC, i-METHOCEL ™) ingasetyenziswa njenge-filler, i-binder, i-tablet yokugqoka i-polymer kunye ne-excipient engundoqo yokulawula ukukhutshwa kweziyobisi.I-Hypromellose isetyenziswe kwiipilisi ngaphezu kweminyaka engama-60 kwaye i-excipient ephambili esetyenziswa ngokubanzi kwiipilisi ze-hydrophilic gel matrix.Uninzi ...Funda ngokugqithisileyo -
Yintoni usetyenziso lwe-hydroxypropyl methylcellulose ether kudaka oluqhunyiswa ngumatshini?
Ulwakhiwo olungoomatshini lodaka luye lwazanywa kwaye lwakhuthazwa iminyaka emininzi e-China, kodwa akukho nkqubela ibonakalayo yenziweyo.Ukongeza kwintandabuzo yabantu malunga neenguqu zokubhukuqa eziya kuzisa ulwakhiwo ngoomatshini kwiindlela zokwakha zesiNtu, esona sizathu ...Funda ngokugqithisileyo -
Yiyiphi impembelelo enayo i-cellulose ether kwizinto ezisekwe kwisamente?
1. Ukushisa kwe-hydration Ngokwe-curve yokukhululwa kobushushu be-hydration ngokuhamba kwexesha, inkqubo ye-hydration ye-samente idla ngokuhlukana ibe ngamanqanaba amahlanu, oko kukuthi, ixesha lokuqala lokukhupha (0 ~ 15min), ixesha lokungeniswa (15min ~ 4h) , ukukhawuleza kunye nexesha lokumisela ( 4h ~ 8h ), ukunciphisa ...Funda ngokugqithisileyo -
Kuthekani nge-hydroxypropyl methylcellulose 400 viscosity njengodaka lokuzilinganisa?
I-self-leveling mortar yinto eyomileyo exutywe ngumgubo owenziwe ngezinto ezahlukeneyo ezisebenzayo, ezinokuthi zisetyenziswe emva kokuxuba ngamanzi kwisayithi.Emva kokusabalalisa okuncinci nge-scraper, isiseko esiphezulu se-flat base sinokufumaneka.Isantya sokuqina siyakhawuleza, kwaye unokuhamba kuyo ngaphakathi kweyure ezingama-24...Funda ngokugqithisileyo -
Ngaba uyayiqonda indima ebalulekileyo ye-cellulose ether kumdaka osele uxutywe?
Kwi-mortar edibeneyo edibeneyo, inani elongezelelweyo le-cellulose ether liphantsi kakhulu, kodwa linokuphucula kakhulu ukusebenza kodaka olumanzi, kwaye iyona nto yokongeza echaphazela ukwakhiwa kodaka.Ukhetho olufanelekileyo lwee-cellulose ethers zeentlobo ezahlukeneyo, i-visc eyahlukeneyo ...Funda ngokugqithisileyo -
Zeziphi izinto ezichaphazela ukutyeba kwe-cellulose ether?
Isiphumo sokutyeba se-cellulose ether sixhomekeke kwi: iqondo lepolymerization ye-cellulose ether, i-concentration yesisombululo, izinga le-shear, ubushushu kunye nezinye iimeko.Ipropati ye-gelling yesisombululo iyingqayizivele kwi-alkyl cellulose kunye ne-derivatives yayo eguqulwayo.Iipropati ze-gelation zi-r...Funda ngokugqithisileyo
