Hauv kev tsim kho tshuaj niaj hnub no,ntsiav tshuaj compression kev ua tau zooplays lub luag haujlwm tseem ceeb hauv kev txiav txim siab cov khoom zoo, ruaj khov, thiab kev tsim khoom. Tej yam tsis xws luag xws licapping, lamination, thiab ntsiav tshuaj tawgfeem ntau cuam tshuam nrog kev faib tawm tsis zoo thaum lub sijhawm compression.
Ntawm kev ua haujlwm excipients,Polyvinylpyrrolidone (PVP)thiabCrosslinked Polyvinylpyrrolidone (PVPP, Crospovidone)tau dav siv vim lawv lub luag haujlwm tshwj xeeb thiab ua tiav hauv kev tsim cov ntsiav tshuaj. Lawv yog cov khoom tseem ceeb hauv kev txhim khontsiav tshuaj mechanical zog, compressibility, thiab tswj kev ntxhov siab thaum lub sij hawm compaction.
Lub luag haujlwm ntawm PVP (Polyvinylpyrrolidone) hauv Tablet Compression
PVP ua ib qho kev ua tau zoo heev
PVP (Polyvinylpyrrolidone)yog dej-soluble kws tshuaj polymer dav siv los ua ibntsiav tshuaj binder nyob rau hauv ntub granulation thiab ncaj qha compression tshuab.
Nyob rau hauv ib txwm concentrations ntawm2–5%, PVP txhim kho hmoov cohesion thiab particle bonding, tsim muaj zog granules uas txhim khu cov ntsiav tshuaj kev ncaj ncees.
Nws qhov txiaj ntsig tseem ceeb nyob hauv nwsTsawg Young's modulus thiab siab yas deformability, uas tso cai rau nws deform plastically nyob rau hauv compression es tsis txhob tawg elastically.
Cov cuab yeej no enables:
Zoo dua hmoov consolidation
Txo cov kev ntxhov siab sab hauv
Txhim kho ntsiav tshuaj hardness
Tsawg kev pheej hmoo ntawm capping thiab lamination
Stress Buffering Mechanism ntawm PVP
Thaum compression, PVP cov ntaub ntawvKev sib txuas ntawm hydrogen bondingnrog tshuaj hais thiab excipients, transforms xoob hmoov rau hauv cohesive granules.
Cov qauv no tso cai rau:
Kev nqus tau zoo thiab rov faib dua
Kev txo qis hauv zos kev ntxhov siab concentration
Tsim cov ntsiav tshuaj ruaj khov compact
Yog li ntawd, PVP ua haujlwm tsis yog tsuas yog ua tus khi, tab sis kuj yog ib qhocompression stress buffering agent, txhim kho mechanical stability nyob rau hauv nyuaj formulations.
Kev Txhim Kho ntawm Mechanical Strength
PVP pab txhawb rau:
Nce tensile lub zog ntawm cov ntsiav tshuaj
Txo friability
Txhim kho compressibility index
Zoo dua granule flowability
Cov kev txhim kho no ua rau nws yog qhov tseem ceeb hauv cov qauv uas cuam tshuam nrog siab -dose lossis compressible APIs tsis zoo.
Lub luag haujlwm ntawm PVPP (Crospovidone) hauv Tablet Compression
PVPP yog Superdisintegrant
PVPP (Crospovidone)yog ib qho crosslinked heev, insoluble polymer muab los ntawm PVP. Nws yog dav siv raws li ib tugsuperdisintegrant nyob rau hauv tam sim no - tso cov ntsiav tshuaj.
Nws tsis yaj hauv dej tab sis sai sai absorbs kua thiab swells los ntawm capillary nkaus, tsim sab hauv siab uas ua rau cov ntsiav tshuaj sib nrug.
Hom kev siv qib:1–5%
Kev cuam tshuam rau Mechanical Strength thiab Compression Behavior
Tsis zoo li PVP, PVPP tsis ua rau muaj kev ntxhov siab ntau. Hloov chaw, nws cuam tshuam cov qauv ntsiav tshuaj sib txawv:
Insoluble particulate qauv tsim cov ntsiab lus tsis muaj zog hauv matrix
High porosity yuav txo tau tag nrho cov neeg kho tshuab lub zog
Ntau dhau concentration txo compressibility
Ntxiv PVPP cov ntsiab lus tuaj yeem txo cov ntsiav tshuaj hardness
Cov kev tshawb fawb qhia tau hais tias kev nce qib disintegrant tuaj yeem cuam tshuam tsis zoo rau cov ntsiav tshuaj lub zog vim muaj qhov porosity thiab txo cov khoom sib txuas.
Lub luag haujlwm ua haujlwm ntawm PVPP
PVPP feem ntau yog tsim los rau:
Cov ntsiav tshuaj sai disintegration
Kev tso tshuaj sai sai
Txhim kho qhov kev sib cais
Nws tsis yog tsim los txhim kho lub zog compression tab sis kom sib npaug formulation kev ua tau zoo tom qab compaction.
Synergistic Siv PVP thiab PVPP hauv Tablet Formulation
Hauv kev tsim tshuaj niaj hnub,PVP thiab PVPP feem ntau yog siv ua ke kom ua tiav qhov kev sib npaug zoo ntawm cov khoom siv dag zog thiab kev ua haujlwm tawg.
Kev faib ua haujlwm:
PVP (Internal Phase)
Ua raws li binder
Txhim kho cov yas deformation
Buffers compression kev nyuaj siab
Txhim kho cov ntsiav tshuaj muaj zog
PVPP (Tshooj Sab Nraud)
Ua raws li superdisintegrant
Txhawb kev tawg sai
Txhim kho tus nqi tso tshuaj
Ib tug qauv formulation system yuav muaj xws li:
PVP K30 as binder
PVPP as disintegrant
Lactose los yog MCC raws li muab tub lim
Qhov kev sib xyaw ua ke no ua kom ob leegrobust compression kev ua tau zoo thiab ceev disintegration cwj pwm.
Qhov tseem ceeb Technical piv
| Excipient | Stress Buffering peev xwm | Kev Tiv Thaiv Capping / Lamination | Thawj Mechanism |
|---|---|---|---|
| PVP (Polyvinylpyrrolidone) | Muaj zog | Ua tau zoo heev | Yas deformation + hydrogen bonding |
| PVPP (Crospovidone) | Tsis muaj zog | txwv | o + capillary action (disintegration) |
Cov ntsiab lus tseem ceeb
PVP yog qhov tseem ceeb ntawm kev ntxhov siab tsis zoo
PVP txo cov kev ntxhov siab sab hauv thaum lub sij hawm compression los ntawm kev ua kom tus cwj pwm ntawm cov yas ntws, txo cov ntsiav tshuaj tsis xws luag xws li capping thiab lamination.
PVPP tsis cuam tshuam kev ntxhov siab
PVPP yog tsim los rau kev sib cais, tsis yog cov khoom siv ntxiv. Kev siv ntau dhau tuaj yeem ua rau cov ntsiav tshuaj tsis muaj zog vim muaj qhov porosity ntxiv.
Qhov zoo tshaj plaws formulation tswv yim
Rau siab -kev txhim kho ntsiav tshuaj:
SivPVP ua tus thawj binderrau structural integrity
SivPVPP raws li kev tswj tsis sib xws
Optimize piv rau qhov sib npaug ntawm lub zog thiab kev sib cais
Hais txog Huzhou Sunflower Pharmaceutical Co., Ltd.
Huzhou Sunflower Pharmaceutical Co., Ltd.yog ib lub chaw tsim khoom tshwj xeeb hauvCov khoom siv tshuaj suav nrog PVP (Polyvinylpyrrolidone), PVPP (Crospovidone), thiab Copovidone (VA64).
Nrog ntau xyoo dhau los ntawm kev paub hauv polymer excipient txoj kev loj hlob, lub tuam txhab integratesR & D, ntau lawm, thiab thov kev txhawb nqakom xa cov- cov ntaub ntawv ua tau zoo rau cov chaw tsim tshuaj thoob ntiaj teb.
Core zog:
Muaj ntau yam ntawmPVP qib (K30, K60, K90, thiab lwm yam)
High -zooPVPP(Hom A & Hom B crospovidone)
CopovidoneVAJ 64kev daws teeb meem
ruaj khov batch-rau-batch zoo tswj
Muaj zog technical txhawb rau kev tsim kho
Lub tuam txhab tau cog lus los muabtxhim khu kev qha, zoo ib yam, thiab daim ntawv thov -tsav tau cov kev daws teeb meem excipient, pab cov tuam txhab tshuaj txhim khontsiav tshuaj compressibility, stability, thiab ntau lawm efficiency.
Xaus
Hauv cov ntsiav tshuaj compression technology,PVP thiab PVPP ua haujlwm sib txawv tab sis ua tiav lub luag haujlwm. PVP ua raws li ib tugstructural binder thiab stress buffer, thaum PVPP ua haujlwm raws li aceev disintegration enhancer. Kev sib xyaw ua ke ntawm kev tshawb fawb ntawm ob qho tib si ua rau cov ntsiav tshuaj ua tau zoo nyob rau hauv cov ntsiab lus ntawm cov neeg kho tshuab lub zog thiab tus cwj pwm tso tshuaj.