Khoom piav qhia:

Tom ntej: Polyvinylpyrrolidone Pvp K30 yog cov hmoov dawb nrog me ntsis tsw thiab hygroscopicity. Nws yog ib qho yooj yim rau nqus dej, rau ethanol, ethyl pawg thiab lwm yam organic solvents. Complex adsorption ntawm ntau yam khoom ntiaj teb.

Cov ntaub ntawv yooj yim

●Model NO.: povidone k30

●Mf: [C₆H₉TSIS MUAJ]_n

● Trademark: ULKM

● Keeb kwm: Suav teb

● CAS No.: 9003-39-8

● Pob: 25kg / Cardboard Nruas

● Specification: Bp / Ep / Usp

●HS Code: 39059900

● Boiling Point: Ntau dua lossis sib npaug rau 130

Daim ntawv thov:

Polyvinylpyrrolidone pvp k30 yog dav siv nyob rau hauv kev lag luam teb, thiab nws yog ib qho ntawm cov tshuaj hluavtaws excipients, nws tuaj yeem siv los ua tus neeg saib xyuas ncua sijhawm, lubricant thiab txheej zaj duab xis tsim tus neeg sawv cev rau qhov muag tee.

Lub cev muaj zog:

1.CharacteristicsFilm-forming thiab hygroscopicity:

Polyvinylpyrrolidone pvp k30 muaj zog hygroscopicity, nws lub peev xwm nqus dej tsis muaj zog dua li carboxymethyl cellulose (CMC), tab sis muaj zog dua polyvinyl cawv (PVA). Thaum PVPK30 absorbs noo noo, nws yuav qhia tau qee qhov kev adhesion. Qhov sib npaug ntawm cov dej noo ntawm PVPK30 yog kwv yees li 1/3 ntawm cov av noo txheeb ze.

2. Nto ua haujlwm:

Lub molecule ntawm Polyvinylpyrrolidone pvp k30 muaj ib tug butyrolactam qauv, uas muaj ib tug loj polar lactam pawg nrog ib tug dipole lub sij hawm ntawm 40, uas muaj peev xwm ua hydrophilic thiab polar pawg. Tsis tas li ntawd, muaj cov tsis-polar methylene (-CH₂-) thiab methine (CH=) pawg ntawm lub nplhaib molecular thiab hauv cov saw ntev, ua rau lipophilic.

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Polyvinylpyrrolidone PVP K30