SUNVIDONE ® VA
Synonyms: Copovidone; Copolyvidone; PVP / VAc
CTFA / INCI: VP / VA copolymer
CAS Naj Npawb: [25086-89-9]
Lub Npe Lub Hlis: Sunvidone ® VA
SUNVIDONE ® VA yog vinylpyrrolidone-vinyl acetate copolymer uas yog ob qho tib si hauv dej thiab hauv cov cawv.
Nws yog siv rau hauv kev lag luam kev lag luam li khi, granulating cov neeg ua hauj lawm, retarding cov neeg ua hauj lawm thiab zaj duab xis.
sib sau cov kab mob hauv cov yeeb tshuaj.
KEV KHO TSHWJ XEEB
SUNVIDONE ® VA ua tau raws li cov cai ntawm USP / NF kawg, Ph.Eur. thiab JPE | |||
Qhov pom ntawm kev daws (10%) | Los ntawm 5 , B 5 min. | Hnyav hlau | 20ppm max |
Aldehydes | 500ppm max. | Poob rau ziab | 5.0% max |
Peroxides | 400ppm max. | sulphated tshauv | % 0.1 max |
Hydrazine | 1ppm max. | K nqi | 25.2-30.8 |
Monomers | % 0.1 max. | Ethenyl acetate | 35.3% -42.0% |
Impurity A | 0.5% max. | Nitrogen | 7.0% -8.0% |
COV KHOOM ZOO TSHAJ PLAWS
Dawb los yog me ntsis daj, dawb-flowing hmoov nrog ib qho tsw ntxhiab tsw phem thiab ua suab tsis tau.
Sunvidone ® VA nkag tau yooj yim nyob rau hauv tag nrho cov dej tshuaj fluophilic. Kev daws teeb meem ntawm ntau tshaj 10% concentration yuav npaj tau rau hauv: dej; ethanol; isopropanol; methylene chloride; glycerol; propylene glycol; Nws yog tsawg soluble nyob rau hauv: ether; cyclic, aliphatic thiab alicyclic hydrocarbons.
KEV THOV
• Lub taub hau rau cov ntsiav tshuaj thiab cov phom Cov phom qhuav rau kev sib txuas lus ncaj qha Kev ntub dej phais | Sunvidone® VA yog ib phau ntawv zoo heev rau cov ntsiav tshuaj thiab cov hnyuv. Nruab nrab ntawm 2% thiab 5%, raws li ib feem ntawm qhov kawg ntawm qhov kev npaj, feem ntau yog siv. |
• Zaj duab xis-txheej | Sunvidone® VA cov ntaub ntawv cov duab uas muaj kev daws teeb meem ntawm tag nrho cov pH qhov tseem ceeb. |
• Subcoating | Sunvidone® VA yog siv rau hauv qab zib-txheej kom zoo dua qub |
• Qab zib txheej | adhesion ntawm lub txheej rau ntawm lub hauv paus ntawm cov ntsiav tshuaj plhaub thiab |
• Tsuag tshuaj | nce lub peev xwm ntawm qhov kev daws teeb meem rau pigments thiab |
• Kev npaj rau kev tso cai-tso tawm | txhim kho lawv cov dispersibility. |
PACKAGES 20KG los yog 25KG nqa hauv fiber ntau nruas lossis PP nruas
Cim npe nrov: copovidone kws tshuaj siv nrog ntau yam kev siv, lub koomhaum, hom, kev kho, qauv dawb
