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yazisa: I-interior wall putty idlala indima ebalulekileyo ekufezekiseni iindonga ezigudileyo nezintle. Phakathi kwezithako ezahlukeneyo ezenza iifomyula ze-wall putty, iipowders ze-polymer eziphinda zichithwe (RDP) zibalaseleyo ngendima ebalulekileyo eziyidlalayo ekuphuculeni ukusebenza kunye neempawu zemveliso yokugqibela...Funda ngokugqithisileyo»
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I-detergent grade CMC I-detergent grade CMC I-Sodium carboxymethyl cellulose kukuthintela ukuphinda kubekwe ukungcola, umgaqo wayo kukuba ukungcola okungalunganga kunye nokufunxwa kwilaphu ngokwalo kwaye iimolekyuli zeCMC ezitshajiweyo zinokugxojwa kwe-electrostatic efanayo, ukongeza, i-CMC inokwenza i-slurry yokuhlamba okanye isepha inyibilike...Funda ngokugqithisileyo»
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I-HPMC ibizwa ngokuba yi-hydroxypropyl methylcellulose. Imveliso ye-HPMC ikhetha i-cotton cellulose ecocekileyo kakhulu njengezinto eziluhlaza kwaye yenziwa nge-etherification ekhethekileyo phantsi kweemeko ze-alkaline. Yonke le nkqubo igqitywa phantsi kweemeko ze-GMP kunye nokubeka esweni ngokuzenzekelayo, ngaphandle kwezithako ezisebenzayo...Funda ngokugqithisileyo»
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I-Hydroxypropyl methyl cellulose (HPMC) viscosity ye-Skim coat? – impendulo: I-Skim coat ilungile ngokuqhelekileyo i-HPMC 100000cps, enye inde kunemfuneko kwi-mortar, ifuna amandla okusebenzisa i-150000cps. Ngaphezu koko, i-HPMC yeyona ndima ibalulekileyo yokugcina amanzi, ilandelwa kukuqina. Kwi-Skim coat, njenge...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»