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Izakhiwo eziqhelekileyo ze-ethers ze-cellulose ezimbini zinikwe kwiMifanekiso 1.1 kunye ne-1.2. Umdiliya ngamnye u-β-D-dehydrated wemolekyuli yeselulosi Iyunithi yeswekile (iyunithi ephinda-phindayo yeselulosi) ithatyathelwa indawo liqela elinye leether kwindawo nganye kwindawo ye-C(2), C(3) kunye neC(6), okt ukuya kuthi ga kwisithathu. Iqela le-ether. Ngokuba o...Funda ngokugqithisileyo»
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Zombini i-hydroxypropyl methylcellulose kunye ne-hydroxyethyl cellulose ziselulosi, yintoni umahluko phakathi kwezi zimbini? "Umahluko phakathi kwe-HPMC kunye ne-HEC" 01 HPMC kunye ne-HEC Hydroxypropyl methylcellulose (Hypromellose), eyaziwa ngokuba yi-hypromellose, luhlobo lwe-cellulose engekho ionic exutywe ...Funda ngokugqithisileyo»
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Iimpawu eziphambili ze-hydroxyethyl cellulose kukuba i-soluble emanzini abandayo kunye namanzi ashushu, kwaye ayinayo i-gelling properties. Inoluhlu olubanzi lwedigri yokutshintsha, ukunyibilika kunye ne-viscosity. imvula. Isisombululo se-Hydroxyethyl cellulose sinokwenza ifilimu ecacileyo, kwaye inophawu ...Funda ngokugqithisileyo»
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Indima ye-hydroxypropyl methylcellulose kwi-putty Ukusuka kwi-thickening, ukugcinwa kwamanzi kunye nokwakhiwa kwemisebenzi emithathu. Ukuqina: I-Cellulose inokugqithwa ukuze inqunyanyiswe, gcina isisombululo esifanayo kwaye singaguquguquki, kwaye uxhathise ukugoba. Ukugcinwa kwamanzi: Yenza umgubo weputty wome kancinci, kwaye uncedise...Funda ngokugqithisileyo»
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I-cellulose ethers esetyenziswa ngokuqhelekileyo ibandakanya i-HEC, i-HPMC, i-CMC, i-PAC, i-MHEC kunye nokunye okunjalo. I-ether ye-cellulose e-non-ionic yamanzi e-soluble ether ine-adhesiveness, i-dispersion stability kunye namandla okugcina amanzi, kwaye iyongezwa ngokuqhelekileyo isetyenziselwa izinto zokwakha. I-HPMC, i-MC okanye i-EHEC isetyenziswa kwiindawo ezininzi ezisekwe kwisamente okanye kwigyp...Funda ngokugqithisileyo»
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IHydroxypropyl methylcellulose (HPMC) Udidi: izinto zokugquma; Izinto zeMembrane; Izixhobo zepolymer ezilawulwa ngokukhawuleza zamalungiselelo okukhululwa kancinci; I-arhente yokuzinzisa; Uncedo lokumiswa, ukuncamathelisa ithebhulethi; I-arhente yokubambelela eyomeleziweyo. 1. Intshayelelo yeMveliso Lo MVELISO YI-NON-IONIC CELLULOSE ETHER...Funda ngokugqithisileyo»
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IHydroxypropyl methylcellulose iyingozi Isixhobo ekrwada se-hydroxypropyl methyl cellulose ngumqhaphu osulungekileyo. Ayinabungozi kumzimba womntu. Iya kuncamathela empumlweni xa idibana ngokusondeleyo, kodwa ayiyi kungena emiphungeni. Ukuba usebenza kumzi-mveliso, kuyacetyiswa ukuba unxibe imaski. IHydroxyp...Funda ngokugqithisileyo»
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Ukwakha i-hydroxypropyl methyl cellulose ekhethekileyo ukunqanda ukungena kokufuma eludongeni, kuya kuba ngumlinganiselo ofanelekileyo wokufuma onokuhlala kwi-samente yodaka ukuvelisa ukusebenza kakuhle emanzini kunye nendima ye-hydroxypropyl methyl cellulose kumdaka ingalingana ne-viscosi. ..Funda ngokugqithisileyo»
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821 putty formula: 821 istatshi kwaba 3.5 kg 2488 3kg Hpmc yi 2.5 kg Formula of ukutyabeka ukutyabeka: 600kg blue gypsum, Umgubo omkhulu omhlophe 400kg, Guar gum 4kg, Wood fiber 2kg, HPMC2kg, Isixa esifanelekileyo citric acid. Ngokusekwe kwifomula ecetyisiweyo ngokwemeko yokwenyani yemathiriyeli ekrwada ...Funda ngokugqithisileyo»
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IHydroxypropyl methyl cellulose yohlulwe yaba ziindidi ezimbini zobushushu obuqhelekileyo - abandayo anyibilikayo - amanzi - uhlobo olunyibilikayo. I-1, i-gypsum series kwiimveliso ze-gypsum series, i-ether ye-cellulose isetyenziselwa ukugcinwa kwamanzi kunye nokunyusa ukuguda. Bekunye banika isiqabu. Inokusombulula i...Funda ngokugqithisileyo»
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1, yintoni eyona nto isetyenziswayo ye-hydroxypropyl methyl cellulose (HPMC)? I-HPMC isetyenziswa ngokubanzi kwizinto zokwakha, iingubo, ii-resin zokwenziwa, iiseramikhi, amayeza, ukutya, amalaphu, ezolimo, izithambiso, icuba kunye namanye amashishini. I-HPMC inokohlulwa ibe: ibakala lokwakha, ibakala lokutya kunye negr yezonyango...Funda ngokugqithisileyo»
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I-Hydroxypropyl methyl cellulose (HPMC) yifiber yepolymer yendalo ngokusebenzisa uchungechunge lwemichiza yokucubungula kunye nokulungiswa kwe-ether ye-cellulose engeyiyo ionic. Uthotho lwe-DB HPMC yimveliso ye-cellulose ether elungisiweyo enyibilika ngakumbi emanzini kwaye iphuhliswe ngokukodwa ukuphucula ukusebenza kwe-m...Funda ngokugqithisileyo»