Povidone, luv luv li PVP, yog tus sawv cev N-vinylamide polymer. Povidone yog dawb rau lub teeb daj hmoov nyob rau hauv tsos, me ntsis tsw, ruaj khov nyob rau hauv chav tsev kub thiab siab, hydrophilic, hygroscopic nyob rau hauv cov huab cua, soluble nyob rau hauv dej, soluble nyob rau hauv ethanol, amines, halogenated hydrocarbons, insoluble nyob rau hauv acetone, aliphatic thiab lwm yam hnyav hydrocarbons, thiab muaj zog complexation thiab adsorption muaj peev xwm rau ntau yam khoom. Povidone feem ntau yog siv los ua cov khoom siv tshuaj, thiab tuaj yeem siv los ua cov khoom siv tshuaj, cov tshuaj solubilizer, tus neeg sawv cev ncua kev kawm, dispersant, thickener, stabilizer, film-forming agent, thiab lwm yam.
Raws li tus txheeb ze molecular hnyav, povidone tuaj yeem muab faib ua homopolymers, copolymer, cross-linked polymers thiab lwm hom; Povidone tuaj yeem muab faib ua povidone soluble raws li qib ntawm polymerization, thiab raws li qhov nruab nrab molecular hnyav (qhia los ntawm tus nqi K), povidone feem ntau suav nrog PVP-K17, PVP-K25, PVP-K30, PVP-K60, PVP-K90 thiab lwm yam khoom; Raws li hom ion, povidone tuaj yeem muab faib ua peb pawg: non-ionic povidone, cationic povidone, thiab anionic povidone. Crospovidone, tseem hu ua insoluble povidone, abbreviated li PVPP hauv lus Askiv, yuav complex nrog phenol, iodine, alkaloids, thiab lwm yam, los txhim kho enzyme kev ua si, insoluble nyob rau hauv dej, tab sis hygroscopic, absorbent (ze li 60%) thiab ceev, yuav nthuav. tom qab nqus dej.
Raws li kev siv tshuaj, crospovidone tuaj yeem siv los ua cov ntsiav tshuaj disintegrant, nrog kev ua haujlwm zoo, thiab yog super disintegrant; Nws kuj tseem tuaj yeem siv los ua cov ntawv khi thiab cov khoom ntxiv rau cov ntsiav tshuaj, tshuaj, granules, thiab lwm yam. Ntxiv nrog rau kev lag luam tshuaj, crospovidone kuj tuaj yeem siv rau hauv cawv, vinegar thiab lwm yam brewing. Povidone K30 (PVP-K30) yog ib hom povidone.
Nws yog dej-soluble povidone, soluble hauv dej thiab ntau yam organic solvents, thiab hygroscopic. Raws li kev siv tshuaj, povidone K30 tuaj yeem siv los ua cov ntawv khi rau cov ntsiav tshuaj, tshuaj, granules, kev pabcuam grafting rau cov tshuaj ntsiav, dispersant rau kev npaj ua kua, thiab kev sib koom ua ke rau kev txhaj tshuaj. Raws li ib qho ntawm cov excipients tshiab, nws kuj tuaj yeem siv rau hauv thaj chaw ntawm cov khoom siv hluavtaws thiab cov tshuaj uas tsis muaj qhov kub thiab txias. Raws li "2022-2026 Povidone Kev Lag Luam In-depth Kev Tshawb Fawb Kev Lag Luam thiab Kev Lag Luam Kev Lag Luam Kev Pom Zoo Tshaj Tawm" tso tawm los ntawm Synsprit Industry Research Center, hauv kev lag luam thoob ntiaj teb, povidone tuam ntxhab feem ntau suav nrog BASF hauv Tebchaws Yelemees, Ashland Asia-Pacific hauv Tebchaws Meskas. , thiab Xinkaiyuan nyob rau hauv Suav teb, thiab ob peb lub tuam txhab nyob rau feem coob ntawm lub ntiaj teb no povidone kev ua lag luam. Nyob rau hauv Suav lag luam, Tshiab Kaiyuan yog thawj lub lag luam kom paub txog cov khoom loj ntawm povidone.
Nyob rau theem no, povidone muaj cov khoom tiav tiav thiab cov khoom tiav. Nws tuaj yeem tsim PVP-K, PVP-I, cross-linked PVP, PVP copolymer thiab lwm yam khoom. Cov neeg tau hais tias vim kev nthuav dav ntawm kev lag luam kho mob hauv tsev thiab kev xav tau ntau ntxiv rau cov tshuaj, povidone, uas yog ib qho tseem ceeb ntawm cov khoom siv tshuaj, yog qhov xav tau nce. Ntxiv rau thaj chaw thov uas twb muaj lawm, thaj chaw thov tshiab ntawm povidone tau nthuav dav tas li. Nws tau kwv yees ua ntej tias qhov kev thov rau povidone hauv Suav teb yuav ncav cuag li 54,000 tons hauv xyoo 2021. Los ntawm qhov kev xav no, kev txhim kho ntawm Tuam Tshoj txoj kev lag luam povidone tau zoo.
