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【Intshayelelo】 Igama leKhemikhali: IHydroxypropylmethyl cellulose (HPMC) Ifomula yeMolekyuli: [C6H7O2(OH)3-mn(OCH3)m(OCH3CH(OH)CH3)n]x Ifomula yoLwakhiwo: Apho :R=-H , -CH3 , okanye -CH2CHOHCH3；X=iqondo lepolymerization . Isifinyezo: HPMC 【Iimpawu】 1. I-cellulose enyibilikayo emanzini, engeyiyo ionic c...Funda ngokugqithisileyo»
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I-Cellulose ether yi-polymer eyenziweyo eyenziwe nge-cellulose yendalo njengezinto eziluhlaza ngokuguqulwa kweekhemikhali. I-Cellulose ether ivela kwi-cellulose yendalo, ukuveliswa kwe-cellulose ether kunye ne-polymer eyenziweyo yahlukile, eyona nto isisiseko yi-cellulose, iikhompawundi ze-polymer yendalo. Ngenxa ye...Funda ngokugqithisileyo»
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Uphando kunye nohlalutyo lwemeko yangoku yophuhliso lweshishini le-Cellulose ether eTshayina. I-Cellulose ether eTshayina iqale kade, amazwe aphuhlileyo aphuhlisa imakethi yasekuqaleni ivuthiwe, okwangoku, amashishini aziwayo emveliso ye-cellulose ether aphambili...Funda ngokugqithisileyo»
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Ukwakhiwa kweekhemikhali: i-cellulose ether compound AnxinCel™ I-Hydroxyethyl cellulose ether (HEC) luhlobo lwee-polymers ezinyibilikayo emanzini ezingezizo i-ionic. Uhlobo lwayo olubonakalayo yi-powder emhlophe egelezayo. I-HEC luhlobo lwe-hydroxylalkyl cellulose ether oluveliswa yi-reaction ye-cellulose ene-ethylene oxide kwi-alka...Funda ngokugqithisileyo»
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Indlela yokuvavanya iipropati kunye ne-viscosity ye-polymer powder ephinda inyibilike, isetyenziswa kakhulu kwihlabathi liphela ukusasaza i-polymer powder RDP nge-vinyl acetate kunye ne-ethylene copolymerized emulsion powder, i-ethylene kunye ne-vinyl chloride kunye ne-lauric acid vinyl ester ternary copolymer powder, i-vinyl acetate kunye...Funda ngokugqithisileyo»
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Inkampani yeTiantai Cellulose igxile kuphando, uphuhliso, imveliso kunye nokukhuthaza ukuthengiswa kweemveliso ze-hydroxypropyl methyl cellulose ze-HPMC. Ubunyulu be-HPMC hydroxypropyl methyl cellulose yeyona mveliso ibaluleke kakhulu kubavelisi kunye nabasebenzisi. Apha sijonga i-hydroxypropyl methyl cellu...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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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»