Vinyl Pyrrolidone Crosslinking 9003-39-8

PVPP yog cross-linked polyvinylpyrrolidone, tseem hu ua cross-linked povidone. Nws yog dawb los yog ze li ntawm dawb, hygroscopic thiab yooj yim ntws hmoov, tsis muaj ntxhiab los yog me ntsis tsw, insoluble nyob rau hauv dej, alkali, acid thiab cov organic solvents, thiab muaj zog o kev ua tau zoo thiab complex muaj peev xwm nrog ntau hom tshuaj.

Vim lub siab molecular hnyav thiab cross-linked qauv ntawm PVPP, nws yog insoluble nyob rau hauv dej, tab sis muaj peev xwm sai sai qhia dej nyob rau hauv kev sib cuag nrog dej, uas txhawb lub expansion ntawm nws network qauv los tsim disintegration, yog li PVPP yog ib tug dav siv ntsiav tshuaj disintegrant nyob rau hauv tshuaj kho mob.

Vim hais tias cov molecules muaj amide bonds thiab adsorb cov hydroxyl pawg ntawm cov polyphenol molecules los tsim hydrogen bonds, lawv muaj peev xwm adsorb polyphenols thiab txhim kho cov tsis-biological stability ntawm caw. Yog li ntawd, nws tuaj yeem siv los ua kom ruaj khov rau npias, txiv hmab txiv ntoo, thiab dej cawv cawv, ua kom nws lub neej txee ntev txog 300 hnub, thiab txhim kho nws cov pob tshab, xim thiab saj.

Cov khoom no yog dawb los yog mis nyuj dawb hmoov, odorless los yog me ntsis yam ntxwv tsw, yeej tasteless, insoluble nyob rau hauv dej, alkali, acid thiab organic solvents. Nws muaj hygroscopicity thiab nqus dej. Nws swells tom qab nqus dej, tab sis tsis tsim gel; Tom qab nqus dej, cov saw molecular stretches thiab ntim tau nrawm, thiab lub zog nthuav dav tuaj yeem ua rau cov ntsiav tshuaj tawg sai sai.

Cim npe nrov: Vinyl Pyrrolidone Crosslinking 9003-39-8, Tuam Tshoj Vinyl Pyrrolidone Crosslinking 9003-39-8 manufacturers, lwm tus neeg, Hoobkas