Copovidone hmoov

CTFA Name: PVP/VA
CAS Nr.: 25086-89-9
Molecular Formula: (C₆H₉TSIS MUAJ)_n(C₄H₆TSIS MUAJ₂)_m

Daim ntawv thov:Cov tshuaj no yog siv nyob rau hauv ntau yam kev siv xws li cov noob txheej, dej dispersible granule binders, zaj duab xis tsim cov neeg ua haujlwm, co-stabilizers, matrix qub, thermal extrusion binders, solubilizers, dispersants, thiab crystallization inhibitors.

Khoom Txheem:USP, EP, CP; nws tuaj yeem ua raws li kev lag luam, khoom noj-qib, thiab cov khoom siv tshuaj.
Cia:khaws cia qhuav, txias, thiab nyob rau hauv ib qho chaw ntxoov ntxoo

VP VA yog linear copolymer uas muaj vinyl pyrrolidone (VP) thiab vinyl acetate (VA), uas yog hydrophobic thiab hydrophilic thermoplastic oxygen-permeable polymers. Nws solubility hloov nrog VP cov ntsiab lus, thiab nws yog insoluble nyob rau hauv aliphatic hydrocarbons thiab ethers. Ntxiv VA cov ntsiab lus ua rau kom muaj dej ntau dua thiab txo hygroscopicity. VP VA muaj qhov zoo xws li tsim cov yeeb yaj kiab dej-resistant, txo cov plua plav, ua kom cov rhizobia muaj sia nyob, txhim kho adhesion thiab cohesiveness, thiab txo qis interfacial nro ntawm cov roj thiab dej. Cov khoom tsim tawm feem ntau muaj qhov hnyav ntawm molecular los ntawm 13, 000 txog 57,000, nrog cov yas pyrrolidone: yas acetate piv ntawm 30: 70 txog 70: 30.

Cim npe nrov: Tuam Tshoj copovidone hmoov manufacturers, lwm tus neeg, Hoobkas