labarai

Polyvinylpyrrolidonekuma ana kiranta PVP, lambar CAS ita ce 9003-39-8. PVP ne gaba daya roba ruwa mai narkewa polymer fili wanda aka polymerized dagaN-vinylpyrrolidone (NVP)karkashin wasu sharudda. A lokaci guda, PVP yana da kyakkyawar solubility, kwanciyar hankali na sinadarai, ikon samar da fim, ƙarancin guba, rashin ƙarfi na ilimin lissafi, shayar da ruwa da iyawar moisturizing, ikon haɗin gwiwa, da tasirin m. Yana iya haɗawa da yawa inorganic da kwayoyin mahadi kamar additives, additives, karin kayan, da dai sauransu.

Polyvinylpyrrolidone (PVP) an yi amfani da al'ada a fannoni daban-daban kamar magani, kayan shafawa, abinci da abin sha, Brewing, yadi, rabuwa membranes, da dai sauransu Tare da ci gaban da sabon kimiyya da fasaha kayayyakin, PVP da aka shafi a cikin irin high-tech filayen kamar photo curing resins, Tantancewar fiber, Laser fayafai, iya zama purgrade kayan, da dai sauransu Za a iya raba PVP zuwa hudu da dai sauransu. darajar magunguna, darajar sinadarai na yau da kullun, darajar abinci, da darajar masana'antu.

Babban dalilin da yasaPVPZa a iya amfani da shi azaman mai hazo shine cewa ligands a cikin kwayoyin PVP na iya haɗuwa tare da hydrogen mai aiki a cikin kwayoyin da ba a iya narkewa. A gefe guda, ƙananan ƙwayoyin cuta sun zama amorphous kuma suna shiga PVP macromolecules. A daya hannun, hydrogen bonding ba ya canza ruwa solubility na PVP, don haka sakamakon shi ne cewa insoluble kwayoyin suna tarwatsa a cikin pVp macromolecules ta hydrogen bonding, sa su da sauki narkewa. Akwai nau'ikan PVP da yawa, Ta yaya za mu zaɓi wannan ƙirar lokacin zabar. Lokacin da adadin (masu yawa) na PVP ya kasance iri ɗaya, haɓakar haɓakawa yana raguwa a cikin tsari na PVP K15> PVP K30> PVP K90. Wannan saboda tasirin solubilization na PVP kanta yana canzawa a cikin tsari na PVP K15> PVP K30> PVP K90. Gabaɗaya, pVp K 15 an fi amfani dashi.

Game da ƙarni na PVP: kawai NVP, monomer, yana shiga cikin polymerization, kuma samfurinsa shine Polyvinylpyrrolidone (PVP). Monomer na NVP yana fuskantar amsawar kai-tsaye ko kuma NVP monomer yana fuskantar halayen haɗin gwiwar haɗin kai tare da wakilin ƙetare (wanda ke ɗauke da mahadi na rukuni masu yawa), kuma samfurin sa shine Polyvinylpyrrolidone (PVPP). Ana iya ganin cewa ana iya samar da samfuran polymerization daban-daban ta hanyar sarrafa yanayin tsari na polymerization daban-daban.

Mun fahimci tsarin tafiyar da PVP

Aikace-aikace na masana'antu sa PVP: PVP-K jerin za a iya amfani da matsayin film wakili, thickener, lubricant da m a yau da kullum sunadarai masana'antu, kuma za a iya amfani da fashewa, Moss, gashi fixative gel, gashi gyarawa, da dai sauransu Ƙara PVP zuwa gashi dyes da gyare-gyare ga fata kula, kumfa stabilizers ga shamfu, dispersants da kuma affinity wakili za a iya bunkasa da creams wa creams da rana wakili, da kuma affinstyle wakili don ingantawa da cream. da lubricating sakamako. Abu na biyu, ƙara PVP zuwa wanka yana da sakamako mai kyau na rigakafin launi kuma yana iya haɓaka ikon tsaftacewa.

Aikace-aikace na PVP a masana'antu da kuma high-tech filayen: PVP za a iya amfani da a matsayin surface shafi wakili, dispersant, thickener, da m a pigments, bugu tawada, yadi, bugu da rini, da launi hoto tube. PVP na iya haɓaka aikin haɗin gwiwa na manne da ƙarfe, gilashi, filastik da sauran kayan. Bugu da kari, PVP yana ƙara yadu amfani da rabuwa membranes, ultrafiltration membranes, microfiltration membranes, nanofiltration membranes, mai bincike, photo curing resins, fenti da coatings, Optical fiber, Laser fayafai da sauran kunno kai high-tech filayen.

Aikace-aikace na magani sa PVP: Daga cikin PVP-K jerin, k30 ne daya daga cikin roba excipients amfani, yafi ga samar jamiái, m jamiái ga granules, ci-release jamiái, adjuvants da stabilizers for injections, kwarara AIDS, dispersants ga ruwa formulations da chromophores, stabilizers ga ma'aunin zafi da sanyio. jure wa magunguna, masu faɗaɗa don maganin lubricants na ido, da kuma abubuwan da ke haifar da fim.

Polyvinylpyrrolidone da polymers, azaman sabbin kayan sinadarai masu kyau, ana amfani da su sosai a cikin magani, abinci, sinadarai na yau da kullun, bugu da rini, suturar launi, kayan ilimin halitta, kayan aikin ruwa da sauran filayen, tare da fa'idodin aikace-aikacen kasuwa. Bayan shekaru na ci gaba da bincike, mun ƙirƙira samfuran tarawa daban-daban, gami da masu zuwa:

A takaice, jerin samfuran PVP suna da kyakkyawan aiki kuma ana amfani da su sosai azaman ƙari na polymer a cikin magani, sutura, pigments, resins, tawada fiber, adhesives, detergents, bugu na yadi da rini. PVP, a matsayin polymer surfactant, za a iya amfani da azaman dispersant, emulsifier, thickener, leveling wakili, danko regulator, anti haifuwa ruwa wakili, coagulant, cosolvent, da kuma wanka a daban-daban watsawa tsarin.