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1. Ziziphi izalathisi eziphambili zobugcisa ze-hydroxypropyl methyl cellulose (HPMC)? HPMC Umxholo we-hydroxypropyl kunye ne-viscosity, uninzi lwabasebenzisi luxhalabile ngezi zalathisi zimbini. Ukugcinwa kwamanzi ngokubanzi kungcono kwabo banomxholo ophezulu we-hydroxypropyl. I-viscosity ephezulu, ukugcinwa kwamanzi,...Funda ngokugqithisileyo»
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Abasebenzisi abaninzi abasoloko benika ingqalelo kwingxaki yobushushu bejeli ye-hydroxypropyl methyl cellulose HPMC. Kule mihla, i-hydroxypropyl methyl cellulose HPMC ngokubanzi yahlulwe nge-viscosity, kodwa kwezinye iindawo ezikhethekileyo kunye namashishini akhethekileyo, kuphela yi-viscosity yemveliso ebonakaliswayo. N...Funda ngokugqithisileyo»
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I-Hydroxypropyl methyl cellulose HPMC yi-non-ionic cellulose ether eyenziwe nge-cellulose yendalo yepolymer material ngokusebenzisa uthotho lwe-chemical processing. Ziyi-powder emhlophe engenavumba, engenancasa kwaye engenatyhefu evuvukala ibe yi-colloidal solution ecacileyo okanye exutyiweyo kancinci emanzini abandayo. Ine...Funda ngokugqithisileyo»
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Kwi-mortar exutyiweyo esele ilungisiwe, ubungakanani bokongeza be-hydroxypropyl methyl cellulose HPMC buphantsi kakhulu, kodwa bunokuphucula kakhulu ukusebenza kwe-mortar emanzi, eyongeziweyo enkulu echaphazela ukusebenza kokwakhiwa kwe-mortar. Ii-ether ze-Cellulose ezine-viscosity eyahlukileyo kunye...Funda ngokugqithisileyo»
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1. Uhlobo olusisiseko lwe-HPMC Hypromellose, igama lesiNgesi elithi hydroxypropyl methylcellulose, elibizwa ngokuba yi-HPMC. Ifomula yayo yemolekyuli yi-C8H15O8-(C10Hl8O6)n-C8Hl5O8, kwaye ubunzima bemolekyuli bumalunga nama-86,000. Le mveliso yinto eyenziwe ngokwe-semi-synthetic, eyinxalenye yeqela le-methyl kunye nenxalenye ye-polyhydrox...Funda ngokugqithisileyo»
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I-Hydroxypropyl methyl cellulose, efinyeziweyo njenge-cellulose [HPMC], yenziwe nge-cotton cellulose ecocekileyo kakhulu njengezinto eziluhlaza, kwaye ilungiswa nge-etherification ekhethekileyo phantsi kweemeko ze-alkaline. Yonke le nkqubo igqitywa phantsi kokubekwa esweni okuzenzakalelayo kwaye ayinazo naziphi na izithako ezisebenzayo ezifana...Funda ngokugqithisileyo»
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1 Intshayelelo I-China ibisoloko ikhuthaza i-ready-mixed mortar kangangeminyaka engaphezu kwama-20. Ingakumbi kwiminyaka yakutshanje, amasebe karhulumente kazwelonke afanelekileyo agxininise kakhulu ekuphuhlisweni kwe-ready-mixed mortar kwaye akhuphe imigaqo-nkqubo ekhuthazayo. Okwangoku, kukho amaphondo angaphezu kwe-10 a...Funda ngokugqithisileyo»