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1. Iyini i-viscosity efanele ye-HPMC? ——Impendulo: Ngokuvamile, ama-yuan ayi-100,000 anele i-putty powder. Izidingo ze-mortar ziphakeme, futhi ama-yuan ayi-150,000 ayadingeka ukuze kube lula ukuyisebenzisa. Ngaphezu kwalokho, umsebenzi obaluleke kakhulu we-HPMC ukugcina amanzi, kulandelwe ukuqina. Ku-putty pow...Funda kabanzi»
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Isifinyezo: Ukusetshenziswa kwe-hydroxypropyl methylcellulose yasekhaya esikhundleni sokungeniswa kwenye ekukhiqizweni kwe-PVC enezinga eliphezulu le-polymerization kwethulwe. Imiphumela yezinhlobo ezimbili ze-hydroxypropyl methylcellulose ezimpahleni ze-PVC enezinga eliphezulu le-polymerization yahlolwa...Funda kabanzi»
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Uma kukhulunywa ngempuphu ye-polymer e-Redispersible, ngikholwa ukuthi bonke abangani bami bakhathazekile kakhulu ngale ndaba. Ngoba enkambisweni yokwakhiwa kwephrojekthi ethile, umkhiqizo unezinhlobo eziningi zezicelo, futhi umkhuba ukhombisile ukuthi ukusebenza kwawo kuthembekile. Ngaphansi kwesiqondiso...Funda kabanzi»
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I-cellulose ether derivatives ibilokhu isetshenziswa kabanzi embonini yokudla isikhathi eside. Ukuguqulwa ngokomzimba kwe-cellulose kungalawula izakhiwo ze-rheological, i-hydration kanye nezakhiwo ze-microstructure zesistimu. Imisebenzi emihlanu ebalulekile ye-cellulose eguquliwe ngamakhemikhali ekudleni yi-rheology...Funda kabanzi»
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Isingeniso KuKotini kanye neCellulose Ukotini, i-fibre yemvelo etholakala esitshalweni sikakotini, yakhiwe ngokuyinhloko nge-cellulose. I-Cellulose, i-carbohydrate eyinkimbinkimbi, iyona eyinhloko yezindonga zamaseli ezitshalweni, enikeza ukwesekwa kwesakhiwo. Ukukhipha i-cellulose emsulwa kukotini kuhilela...Funda kabanzi»
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Ukucubungula i-cellulose kuhilela izindlela ezahlukene zokukhipha nokuyicwenga emithonjeni yayo yemvelo, ikakhulukazi izitshalo. I-Cellulose, i-polysaccharide, yakha ingxenye yesakhiwo sezindonga zamaseli ezitshalweni futhi iyi-polymer eningi kakhulu eMhlabeni. Ukucubungula kwayo kubalulekile ezimbonini ezisukela...Funda kabanzi»
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Ekwakhekeni kodaka oluyimpuphu eyomile, i-cellulose ether iyisengezo esibalulekile esinenani eliphansi lokwengeza, kodwa ingathuthukisa kakhulu ukusebenza kokuxuba nokwakha kodaka. Kalula nje, cishe zonke izakhiwo zokuxuba ezimanzi zodaka ezingabonakala nge-n...Funda kabanzi»
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Lesi sihloko sikhetha kakhulu i-MMA, i-BA, i-AA njenge-monomers, futhi sixoxa ngezici ze-graft polymerization nazo, njengokulandelana kokwengeza, inani lokwengeza kanye nokushisa kokusabela kwe-initiator kanye ne-monomer ngayinye, futhi sithola izimo zenqubo ye-graft polymerization engcono kakhulu. Irabha i...Funda kabanzi»
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I-Hydroxypropyl cellulose, isithako semithi, ihlukaniswe phakathi i-hydroxypropyl cellulose eshintshiwe kancane (L-HPC) kanye ne-hydroxypropyl cellulose eshintshiwe kakhulu (H-HPC) ngokuya ngokuqukethwe kwe-hydroxypropoxy yayo eshintshiwe. I-L-HPC ivuvukala ibe yisisombululo se-colloidal emanzini, inezakhiwo...Funda kabanzi»
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1. Isisekelo sethiyori Kungabonakala kufomula yesakhiwo ukuthi i-hydrogen (Na+) ku-CMC kulula kakhulu ukuyihlukanisa nesisombululo samanzi (ngokuvamile ikhona ngesimo sikasawoti we-sodium), ngakho-ke i-CMC ikhona ngesimo se-anion kusisombululo samanzi, okungukuthi, ineshaja engemihle futhi i-amphoteric....Funda kabanzi»
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I-Hydroxyethyl methyl cellulose HEMC ingasetshenziswa njenge-ejenti yokuvikela i-colloid, i-emulsifier kanye ne-dispersant ngenxa yomsebenzi wayo osebenzayo ebusweni kusisombululo samanzi. Isibonelo sokusetshenziswa kwayo simi kanje: Umphumela we-hydroxyethyl methyl cellulose ezimpahleni zesimende. I-Hydroxyethyl methylce...Funda kabanzi»
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Udaka olulwa nokuqhekeka Udaka olulwa nokuqhekeka (udaka olulwa nokuqhekeka), olwenziwe nge-ejenti yokulwa nokuqhekeka eyenziwe nge-polymer emulsion kanye nokuxubana, usimende nesihlabathi kuxutshwe namanzi ngesilinganiso esithile, lungakwanelisa ukuguquguquka okuthile ngaphandle kokuqhekeka, futhi lusebenzisane negridi. Indwangu isebenza kangcono. Yakha...Funda kabanzi»