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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»