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Izakhiwo eziqhelekileyo zee-ether ezimbini ze-cellulose zinikwe kwiMifanekiso 1.1 kunye no-1.2. Idiliya nganye eyomileyo ye-β-D yemolekyuli ye-cellulose Iyunithi yeswekile (iyunithi ephindayo ye-cellulose) ithathelwa indawo liqela elinye le-ether ngalinye kwiindawo ze-C(2), C(3) kunye ne-C(6), oko kukuthi ukuya kuthi ga kwiithathu kwiqela le-ether. Kuba...Funda ngokugqithisileyo»
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Zombini i-hydroxypropyl methylcellulose kunye ne-hydroxyethyl cellulose ziyi-cellulose, yintoni umahluko phakathi kwezi zimbini? "Umahluko Phakathi kwe-HPMC kunye ne-HEC" 01 HPMC kunye ne-HEC I-Hydroxypropyl methylcellulose (Hypromellose), eyaziwa ngokuba yi-hypromellose, luhlobo lwe-non-ionic cellulose exutyiweyo ...Funda ngokugqithisileyo»
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Iipropati eziphambili ze-hydroxyethyl cellulose kukuba iyanyibilika emanzini abandayo namanzi ashushu, kwaye ayinazo iipropati ze-gelling. Inoluhlu olubanzi lwezinga lokutshintsha, ukunyibilika kunye ne-viscosity. Isisombululo se-hydroxyethyl cellulose sinokwenza ifilimu ecacileyo, kwaye sinophawu...Funda ngokugqithisileyo»
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Indima ye-hydroxypropyl methylcellulose kwi-putty Ukususela ekuqineni, ukugcinwa kwamanzi kunye nokwakhiwa kwemisebenzi emithathu. Ukutyeba: I-Cellulose inokwenziwa ibe nkulu ukuze imiswe, igcine isisombululo sifana kwaye sihambelana, kwaye imelane nokugoba. Ukugcinwa kwamanzi: Yenza umgubo we-putty wome kancinci, kwaye uncede ...Funda ngokugqithisileyo»
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Ii-ether ze-cellulose ezisetyenziswa rhoqo ziquka i-HEC, i-HPMC, i-CMC, i-PAC, i-MHEC nezinye ezifana nazo. I-ether ye-cellulose enyibilikayo emanzini engeyiyo i-ionic inamathela, izinzile ekusasazekeni kwaye inomthamo wokugcina amanzi, kwaye sisongezelelo esisetyenziswa rhoqo kwizixhobo zokwakha. I-HPMC, i-MC okanye i-EHEC zisetyenziswa kakhulu kwi-samente okanye kwi-gyp...Funda ngokugqithisileyo»
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IHydroxypropyl methylcellulose (HPMC) Udidi: izinto zokugquma; Izinto zeMembrane; Izinto zepolymer ezilawulwa ngesantya sokulungiselela ukukhulula kancinci; Iarhente yokuzinzisa; Isixhobo sokuncedisa ukumiswa, iglu yethebhulethi; Iarhente yokuncamathelisa eqinisiweyo. 1. Intshayelelo yemveliso Le MVELISO AYI-ION-ION CELLULOSE ETHER...Funda ngokugqithisileyo»
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I-Hydroxypropyl methylcellulose iyingozi Izinto eziluhlaza ze-hydroxypropyl methyl cellulose yikotoni ecoliweyo. Ayinabungozi emzimbeni womntu. Iya kunamathela empumlweni xa isondelelene, kodwa ayiyi kungena emiphungeni. Ukuba usebenza kumzi-mveliso, kucetyiswa ukuba unxibe imaski. I-Hydroxyp...Funda ngokugqithisileyo»
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Ukwakha i-hydroxypropyl methyl cellulose ekhethekileyo ukuze kuthintelwe ukungena komswakama eludongeni, kuya kuba ngumlinganiselo ofanelekileyo womswakama onokuhlala kwi-mortar samente ovelisa ukusebenza okuhle emanzini kwaye indima ye-hydroxypropyl methyl cellulose kwi-mortar inokulingana ne-viscosi...Funda ngokugqithisileyo»
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Ifomula ye-putty engu-821: Isitatshi esingu-821 sasiyi-3.5 kg 2488 3kg I-Hpmc yi-2.5 kg Ifomula yokwambathisa nge-plaster: 600kg i-gypsum eluhlaza okwesibhakabhaka, Umgubo omkhulu omhlophe 400kg, I-Guar gum 4kg, I-Wood fibre 2kg, I-HPMC2kg, Ubungakanani obufanelekileyo be-citric acid. Ngokusekelwe kwifomula ecetywayo ngokwemeko yokwenyani yezinto ezikrwada ...Funda ngokugqithisileyo»
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I-Hydroxypropyl methyl cellulose yahlulwe yaba ziintlobo ezimbini ze-hot – soluble cold – water – soluble type. 1, i-gypsum series kwiimveliso ze-gypsum series, i-cellulose ether isetyenziselwa kakhulu ukugcina amanzi kunye nokunyusa ukuthamba. Xa zidibene zibonelela ngoncedo oluthile. Ingasombulula ingxaki...Funda ngokugqithisileyo»
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1, yintoni eyona nto isetyenziswa kakhulu yi-hydroxypropyl methyl cellulose (HPMC)? I-HPMC isetyenziswa kakhulu kwizixhobo zokwakha, kwiingubo, kwiiresini zokwenziwa, kwiiseramikhi, kumayeza, ekutyeni, kwimpahla yelaphu, kwezolimo, kwizinto zokuthambisa, kwicuba nakwamanye amashishini. I-HPMC inokwahlulwa ibe: inqanaba lokwakha, inqanaba lokutya kunye nelezonyango...Funda ngokugqithisileyo»
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I-Hydroxypropyl methyl cellulose (HPMC) yifayibha yepolymer yendalo ngokusebenzisa uthotho lweenkqubo zeekhemikhali kunye nokulungiswa kwe-non-ionic cellulose ether. I-DB series HPMC yimveliso ye-cellulose ether eguquliweyo enyibilikayo emanzini kwaye yenzelwe ngokukodwa ukuphucula ukusebenza kwe-m...Funda ngokugqithisileyo»