I-Povidone-K90 / PVP-K90 ethengiswa ngobuninzi
Intshayelelo:
| I-INCI | Iimolekyuli |
| I-POVIDONE-K90 | ( C6H9NO )n |
I-Povidone (i-polyvinylpyrrolidone, i-PVP) isetyenziswa kwishishini lamayeza njengesithuthi se-polymer esenziwe ngokwenziwa sokusasaza nokuxhoma amayeza. Inemisebenzi emininzi, kuquka njenge-binder yeepilisi kunye neekhaphu, ifilimu eyayisakhiwe kwizisombululo zamehlo, ukunceda ekunambithekeni kolwelo kunye neepilisi ezihlafunwayo, kunye ne-glue kwiinkqubo ze-transdermal.
I-Povidone inefomula yemolekyuli ye-(C6H9NO)n kwaye ibonakala njengomgubo omhlophe ukuya komhlophe kancinci. Iifomyula zePovidone zisetyenziswa kakhulu kwishishini lamayeza ngenxa yokukwazi kwazo ukunyibilika kwizinyibilikisi zamanzi kunye neoyile. Inombolo ye-k ibhekisa kubunzima bemolekyuli obuphakathi be-povidone. Ii-Povidone ezine-K-values eziphezulu (oko kukuthi, i-k90) azisoloko zinikwa ngenaliti ngenxa yobunzima bazo obuphezulu beemolekyuli. Ubunzima bemolekyuli obuphezulu buthintela ukukhutshwa yizintso kwaye bukhokelela ekuqokeleleni emzimbeni. Umzekelo owaziwayo weefomyula ze-povidone yi-povidone-iodine, isibulali-ntsholongwane esibalulekileyo.
Ihamba ngokukhululekileyo, ipowder emhlophe, izinzile kakuhle, ayicaphukisi, inyibilika emanzini nakwi-ethnol, ikhuselekilekwaye kulula ukuyisebenzisa,. Isebenza kakuhle ekubulaleni iintsholongwane, iintsholongwane kunye nee-epiphytes. Ihambelana nobuninzi bomphezulu.
Ifumaneka njenge-free flow, i-red brown powder, ayicaphukisi kwaye izinzile, inyibilika emanzini nase-alcohol, ayinyibiliki kwi-diethylethe kunye ne-chloroform.
Iinkcukacha
| Inkangeleko | Umgubo omhlophe okanye otyheli-mhlophe |
| Ixabiso le-K | 81.0～97.2 |
| Ixabiso le-PH (5% emanzini) | 3.0～7.0 |
| Amanzi% | ≤5.0 |
| Intsalela ekutshisweni kwegesi% | ≤0.1 |
| I-PPM ekhokelayo | ≤10 |
| IiAldehydes% | ≤0.05 |
| I-Hydrazine PPM | ≤1 |
| I-Vinylpyrrolidone% | ≤0.1 |
| I-nitrogen % | 11.5~12.8 |
| Iiperoxides (njenge-H2O2) PPM | ≤400 |
Iphakheji
25KGS ngedrama yekhadibhodi nganye
Ixesha lokusebenza ngokusemthethweni
Iinyanga ezingama-24
Indawo yokugcina izinto
Iminyaka emibini ukuba igcinwe phantsi kweemeko ezipholileyo nezomileyo kwaye ivalwe kakuhle kwisikhongozeli
I-Polyvinylpyrrolidone idla ngokuba yipowder okanye isisombululo. I-PVP kwi-cosmetics mousse, eruption, kunye neenwele, ipeyinti, i-inki yokuprinta, ilaphu, ukuprinta kunye nokudaya, iityhubhu zemifanekiso enemibala zingasetyenziswa njengee-arhente zokugquma umphezulu, ii-agents zokusasazeka, izithambisi, izihlanganisi. Kwizonyango zisetyenziswa kakhulu izihlanganisi zeetablethi, iigranules njalo njalo.
