-
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»
-
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»
-
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 kweziyi-10...Funda kabanzi»