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1. Yiziphi izinkomba zobuchwepheshe eziyinhloko ze-hydroxypropyl methyl cellulose (HPMC)? HPMC Okuqukethwe kwe-hydroxypropyl kanye ne-viscosity, abasebenzisi abaningi bakhathazekile ngalezi zinkomba ezimbili. Ukugcinwa kwamanzi ngokuvamile kungcono kulabo abanokuqukethwe okuphezulu kwe-hydroxypropyl. I-viscosity ephezulu, ukugcinwa kwamanzi,...Funda kabanzi»
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Abasebenzisi abaningi abavamile ukunaka inkinga yokushisa kwejeli ye-hydroxypropyl methyl cellulose HPMC. Namuhla, i-hydroxypropyl methyl cellulose HPMC ngokuvamile ihlukaniswa nge-viscosity, kodwa kwezinye izindawo ezikhethekile kanye nezimboni ezikhethekile, i-viscosity yomkhiqizo kuphela ebonakala. N...Funda kabanzi»
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I-Hydroxypropyl methyl cellulose HPMC iyi-non-ionic cellulose ether eyenziwe nge-cellulose yemvelo ye-polymer ngokusebenzisa uchungechunge lwezinqubo zamakhemikhali. Ziyimpuphu emhlophe engenaphunga, engenambitheki futhi engenabuthi evuvukala ibe yisisombululo se-colloidal esicacile noma esinamafu kancane emanzini abandayo. Ine ...Funda kabanzi»
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Ku-mortar exutshwe ngomumo, inani lokwengeza le-hydroxypropyl methyl cellulose HPMC liphansi kakhulu, kodwa lingathuthukisa kakhulu ukusebenza kwe-mortar emanzi, okuyisengezo esikhulu esithinta ukusebenza kokwakhiwa kwe-mortar. Ama-ether e-cellulose ane-viscosity ehlukile kanye...Funda kabanzi»
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1. Uhlobo oluyisisekelo lwe-HPMC Hypromellose, igama lesiNgisi elithi hydroxypropyl methylcellulose, elibizwa nangokuthi i-HPMC. Ifomula yayo yama-molecule yi-C8H15O8-(C10Hl8O6)n-C8Hl5O8, kanti isisindo sama-molecule singaba ngu-86,000. Lo mkhiqizo uyinto eyenziwe kancane, eyingxenye yeqembu le-methyl kanye nengxenye ye-polyhydrox...Funda kabanzi»
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I-Hydroxypropyl methyl cellulose, efingqiwe ngokuthi i-cellulose [HPMC], yenziwe nge-cotton cellulose emsulwa kakhulu njengezinto zokusetshenziswa, futhi ilungiswa nge-etherification ekhethekile ngaphansi kwezimo ze-alkaline. Yonke inqubo iqedwa ngaphansi kokuqapha okuzenzakalelayo futhi ayinazo izithako ezisebenzayo ezifana...Funda kabanzi»
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1 Isingeniso I-China ibilokhu ikhuthaza udoti oxutshwe ngomumo iminyaka engaphezu kwengu-20. Ikakhulukazi eminyakeni yamuva nje, iminyango kahulumeni kazwelonke efanele ibeke ukubaluleka ekuthuthukisweni kodoti oxutshwe ngomumo futhi ikhiphe izinqubomgomo ezikhuthazayo. Njengamanje, kunezifundazwe ezingaphezu kwe-10...Funda kabanzi»