Izindaba
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Kungani i-cellulose ether isetshenziswa kakhulu ezintweni ezisiza ekhemisi?
Izisetshenziswa zemithi ziyizinto ezisizayo nezithasiselo ezisetshenziswa ekukhiqizeni imithi nemiyalelo, futhi ziyingxenye ebalulekile yamalungiselelo emithi.Njengento yemvelo esuselwe kwi-polymer, i-cellulose ether iyabola, ayinabo ubuthi, futhi ishibhile, njenge-sodium carboxymethyl cellu...Funda kabanzi -
Uyawazi amaphilisi athambile esitshalo se-hydroxypropyl methylcellulose kanye nesigayo sayo se-colloid?
Njengamanje, izinto ezisetshenziswayo ezivuthiwe zamaphilisi ezitshalo ikakhulukazi i-hydroxypropyl methylcellulose (HPMC) kanye ne-pudulan, kanti isitashi se-hydroxypropyl siphinde sisetshenziswe njengezinto zokusetshenziswa.Kusukela ekuqaleni kwawo-2010s, i-HPMC isetshenziswe embonini yokukhiqiza ama-capsule ezitshalo zaseShayina, futhi ngokusekelwe kuyo...Funda kabanzi -
Ingabe uyakwazi ukusebenza kwe-hydroxypropyl methylcellulose?
IHydroxypropyl methylcellulose iwuhlobo lwe-non-ionic cellulose exubile ether.Ngokungafani ne-ionic methyl carboxymethyl cellulose ether exubile, ayisebenzi ngezinsimbi ezinzima.Ngenxa yezilinganiso ezihlukene zokuqukethwe kwe-methoxyl nokuqukethwe kwe-hydroxypropyl ku-hydroxypropyl methylcellulose nama-viscos ahlukene...Funda kabanzi -
Ngabe iphunga le-hydroxypropyl methylcellulose liyithinta kanjani ikhwalithi?
Iyini imiphumela yosayizi wephunga ku-hydroxypropyl methylcellulose: Ukwenziwa kwe-hydroxypropyl methylcellulose: Phatha i-cellulose kakotini ecolisisiwe nge-lye ku-35-40 ° C isigamu sehora, cindezela, uchoboze i-cellulose, futhi ubudala ngendlela efanele ku-35 ° C, ukuze I-avareji yezinga le-polymerization ye-a...Funda kabanzi -
Yiziphi izinzuzo zokusebenzisa i-hydroxypropyl methylcellulose njenge-capsule engenalutho?
Lo mkhiqizo yi-2-hydroxypropyl ether methyl cellulose, okuwumkhiqizo owenziwe kancane.Ingakhiqizwa ngezindlela ezimbili: (1) Ngemva kokwelapha ama-linter kakotini noma imicu ye-wood pulp nge-caustic soda, ixutshwa ne-chloromethane kanye ne-epoxy Propane isabela, icolisisiwe futhi igaywe ukuze iwuthole;(2) ...Funda kabanzi -
Yiziphi izinto ezithathwe esitshalweni ezifanele ukukhiqizwa kwama-capsules aqinile angenalutho?
Emlandweni wama-capsules wekhulu leminyaka, i-gelatin ibilokhu igcina isikhundla sayo njengezinto ezijwayelekile ze-capsule ngenxa yohlu olubanzi lwemithombo, izici ezinzile zomzimba namakhemikhali, nokusebenza okuhle kakhulu kokucubungula.Ngokukhula kokuthanda kwabantu amaphilisi, hollo...Funda kabanzi -
Isetshenziswa kanjani i-Hypromellose (HPMC) kumathebulethi e-matrix akhululiwe?
Embonini yezemithi, i-hypromellose (HPMC, METHOCEL™) ingasetshenziswa njenge-filler, i-binder, i-polymer yokugqoka ithebhulethi kanye ne-excipient eyinhloko ukulawula ukukhululwa kwezidakamizwa.I-Hypromellose isetshenziswe kumaphilisi iminyaka engaphezu kwengu-60 futhi iyisakhi esiyinhloko esisetshenziswa kakhulu kumaphilisi e-hydrophilic gel matrix.Abaningi p...Funda kabanzi -
Iyini ukusetshenziswa kwe-hydroxypropyl methylcellulose ether odakeni oluqhunyiswa emshinini?
Ukwakhiwa kodaka ngemishini kuzanywe futhi kwakhuthazwa iminyaka eminingi eShayina, kodwa ayikho inqubekelaphambili enkulu esele yenziwe.Ngaphezu kokungabaza kwabantu mayelana nezinguquko ezihlasimulisayo ezizolethwa ukwakhiwa kwemishini ezindleleni zokwakha zendabuko, isizathu esiyinhloko ...Funda kabanzi -
Imuphi umphumela i-cellulose ether enawo ezintweni ezisekelwe kusimende?
1. Ukushisa kwe-hydration Ngokusho kwejika lokukhululwa kokushisa kwe-hydration ngokuhamba kwesikhathi, inqubo ye-hydration kasimende ivame ukuhlukaniswa ngezigaba ezinhlanu, okungukuthi, isikhathi sokuqala se-hydration (0 ~ 15min), isikhathi sokungeniswa (15min ~ 4h) , isikhathi sokusheshisa nesokusetha (4h~8h), ukwehlisa ijubane ...Funda kabanzi -
Kuthiwani nge-hydroxypropyl methylcellulose 400 viscosity njengodaka oluzilinganisa?
I-self-leveling mortar iyimpushana ehlanganisiwe eyomile eyakhiwe ngezithako ezihlukahlukene ezisebenzayo, ezingasetshenziswa ngemva kokuxubana namanzi esizeni.Ngemuva kokusabalalisa okuncane nge-scraper, indawo ephezulu yesisekelo esiphezulu ingatholakala.Isivinini sokuqina siyashesha, futhi ungahamba kuso phakathi namahora angama-24...Funda kabanzi -
Ingabe uyayiqonda indima ebalulekile ye-cellulose ether odakeni oluxubile?
Ngodaka oluhlanganisiwe, inani elingeziwe le-cellulose ether liphansi kakhulu, kodwa lingathuthukisa kakhulu ukusebenza kodaka olumanzi, futhi liyisithasiselo esiyinhloko esithinta ukusebenza kokwakhiwa kodaka.Ukukhetha okunengqondo kwama-cellulose ethers ezinhlobonhlobo ezahlukahlukene, i-visc ehlukile ...Funda kabanzi -
Yiziphi izici ezithinta ukujiya kwe-cellulose ether?
Ukuqina komphumela we-cellulose ether kuncike: izinga le-polymerization ye-cellulose ether, ukuhlushwa kwesisombululo, izinga le-shear, izinga lokushisa nezinye izimo.Impahla ye-gelling yesisombululo ihlukile ku-alkyl cellulose kanye nokuphuma kwayo okuguquliwe.Izakhiwo ze-gelation ziyi-r...Funda kabanzi
