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1. Imvelo eyisisekelo ye-HPMC Hypromellose, igama lesiNgisi elithi hydroxypropyl methylcellulose, alias HPMC. Ifomula yayo yamangqamuzana ithi C8H15O8-(C10Hl8O6)n-C8Hl5O8, futhi isisindo samangqamuzana cishe singama-86,000. Lo mkhiqizo uyi-semi-synthetic material, eyingxenye yeqembu le-methyl kanye nengxenye ye-polyhydrox...Funda kabanzi»
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I-Hydroxypropyl methyl cellulose, efushanisiwe njenge-cellulose [HPMC], yenziwe nge-cellulose kakotini ecwenge kakhulu njengempahla eluhlaza, futhi ilungiswa nge-etherification ekhethekile ngaphansi kwezimo ze-alkali. Yonke le nqubo iqedwa ngaphansi kokuqapha okuzenzakalelayo futhi ayiqukethe izithako ezisebenzayo ezifana...Funda kabanzi»
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1 Isingeniso I-China isineminyaka engaphezu kwengama-20 ikhuthaza udaka oluxubekile. Ikakhulukazi eminyakeni yakamuva, iminyango kahulumeni kazwelonke efanele ibeke ukubaluleka kokwakhiwa kodaka oseluxubile futhi yakhipha izinqubomgomo ezikhuthazayo. Njengamanje, kunezifundazwe ezingaphezu kwe-10 ...Funda kabanzi»