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Indima ye-hydroxyethyl cellulose (HEC) ekugqokeni
IHydroxyethyl cellulose (HEC), okuphuzi okumhlophe noma okukhanyayo, okunganuki, okuqinile okunganabuthi noma okuyimpuphu, okulungiselelwe ukusabela kwe-etherification ye-alkaline cellulose ne-ethylene oxide (noma i-chlorohydrin), ingeka-Nonionic soluble cellulose ethers. Njengoba i-HEC inezindawo ezinhle zokuqina, i-suspenden...Funda kabanzi -
Ukuqina komphumela we-hydroxypropyl methylcellulose
IHydroxypropyl methylcellulose inika udaka olumanzi nge-viscosity enhle kakhulu, engakhuphula kakhulu amandla okubopha phakathi kodaka olumanzi kanye nongqimba oluyisisekelo, futhi ithuthukise ukusebenza kodaka lokulwa nokusa. Isetshenziswa kabanzi ekudaleni udaka, isistimu yokufaka udonga lwangaphandle kanye nezitini ...Funda kabanzi -
Sebenzisa i-hydroxypropyl methylcellulose ukunamathela kwezinye izici
I-Hydroxypropylmethylrubicin (HPMC) iyimpahla ye-cellulosic, i-pulp noma ukotini engasetshenziswa ukucwenga i-pulp yezinkuni. Ngaphambi kwe-alkalization noma inqubo ye-alkalization kufanele ibhujiswe. Ukulimala kwemishini kungase kucekele phansi uhlaka oluhlanganisiwe lwempahla ye-cellulose yephepha, ngaleyo ndlela kwehlise i-polymerizatio...Funda kabanzi -
Umehluko phakathi kwe-hydroxypropyl methylcellulose HPMC ne-methylcellulose MC
I-HPMC iyi-hydroxypropyl methylcellulose, okuyi-ether engeyona i-ionic cellulose eyenziwe ngokotini ocolisisiwe ngemva kokwenziwa kwe-alkalization, kusetshenziswa i-propylene oxide ne-methyl chloride njengama-etherification agents, futhi ngochungechunge lokusabela. Izinga lokushintsha ngokuvamile liyi-1.2 ~ 2.0. Izakhiwo zayo ziyi...Funda kabanzi -
I-Cellulose Ether
I-cellulose ether yenziwa nge-cellulose ngokusabela kwe-etherification ye-etherification eyodwa noma eziningana kanye nokugaya okomile. Ngokwezakhiwo zamakhemikhali ezihlukene zama-ether substituents, ama-cellulose ether angahlukaniswa abe ama-anionic, cationic kanye nama-nonionic ether. Ionic cellulose et...Funda kabanzi -
I-Hydroxypropyl Methyl Cellulose HPMC Properties
IHydroxypropyl methylcellulose HPMC wuhlobo lwe-non-ionic cellulose exubile ether. Ihlukile ku-ionic methyl carboxymethyl cellulose ether exubile, ayisebenzi nezinsimbi ezisindayo. Ngenxa yezilinganiso ezihlukene zokuqukethwe kwe-methoxyl nokuqukethwe kwe-hydroxypropyl ku-hydroxypropyl methylcellulose kanye ne-dif...Funda kabanzi -
Ukusetshenziswa kwe-hydroxypropyl methylcellulose ku-gypsum mortar
Ukuhlolwa kokuhlolwa kwesicelo se-hydroxypropyl methylcellulose: 1. Ukuhlolwa kwamandla: Ngemva kokuhlolwa, i-hydroxypropyl methylcellulose esekelwe ku-gypsum inamandla amahle okubopha okuqinile namandla okucindezela. 2. Ukuhlolwa kokulwa nokucwila: Akukho ukuwohloka lapho ukwakhiwa kwephasi eyodwa kusetshenziswa izendlalelo eziwugqinsi, futhi akukho ukuntenga lapho...Funda kabanzi -
I-Hydroxypropyl methyl cellulose ether (HPMC) yodaka lwempuphu owomile
Igama lesiShayina le-HPMC yi-hydroxypropyl methylcellulose. Ayiyona i-ionic futhi ivame ukusetshenziswa njenge-ejenti egcina amanzi odakeni oluxutshwe okomile. Kuyinto esetshenziswa kakhulu ukugcina amanzi odakeni. Inqubo yokukhiqiza ye-HPMC iwumkhiqizo we-ether osuselwe ku-polysaccharide okhiqizwe ...Funda kabanzi -
I-Hydroxypropyl Methyl Cellulose Ether (HPMC)
Izici: ① Ngokugcinwa kahle kwamanzi, ukujiya, i-rheology nokunamathela, ukukhetha kokuqala kwempahla eluhlaza yokuthuthukisa ikhwalithi yezinto zokwakha nezinto zokuhlobisa. ②Ukusetshenziswa okubanzi: ngenxa yamabanga aphelele, kungasetshenziswa kuzo zonke izinto zokwakha eziyimpushana. ③Idosi elincane...Funda kabanzi -
Ukusetshenziswa kwe-Cellulose Ether ku-Hot Melt Extrusion Technology
UJoseph Brama wasungula inqubo yokukhishwa kwamapayipi okuhola ngasekupheleni kwekhulu le-18. Kwaze kwaba maphakathi nekhulu le-19 lapho ubuchwepheshe be-hot-melt extrusion baqala ukusetshenziswa embonini yepulasitiki. Yaqala ukusetshenziswa ekukhiqizeni i-polymer coatings evikelayo ...Funda kabanzi -
I-Etherification Synthetic Principle ye-Hydroxypropyl Methyl Cellulose (HPMC)
IHydroxypropyl methylcellulose (HPMC), i-cellulose eluhlaza, ingacolisiswa ukotini noma i-pulp yokhuni, kudingekile kakhulu ukuyichoboza ngaphambi kwe-alkalization noma ngesikhathi se-alkalization, futhi ukuchotshozwa kungokusebenzisa amandla omshini Ukubhubhisa isakhiwo esihlanganisiwe sezinto zokusetshenziswa kwe-cellulose ukunciphisa izinga cr...Funda kabanzi -
IHydroxypropyl methyl cellulose ether yokwakha
Izici zomkhiqizo we-hydroxypropyl methylcellulose ukuze kwakhiwe Incibilika emanzini nezinye izincibilikisi eziphilayo. Ingancibilika emanzini abandayo. Ukugxila kwayo okuphezulu kuncike kuphela ku-viscosity. I-solubility iyashintsha nge-viscosity. Lapho i-viscosity iphansi, i-solubi inkulu kakhulu ...Funda kabanzi
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