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 shi a al'ada a fannoni daban-daban kamar magani, kayan shafawa, abinci da abin sha, shayarwa, yadi, membranes na rabuwa, da sauransu. kamar yadda photo curing resins, Optical fiber, Laser fayafai, ja rage kayan, da dai sauransu PVP tare da daban-daban tsarki za a iya raba hudu maki: Pharmaceutical sa, kullum sinadaran sa, abinci sa, da kuma masana'antu sa.

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 (taro) 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-aikacen sa PVP na masana'antu: Za'a iya amfani da jerin PVP-K azaman wakili na fim, mai kauri, mai mai da mannewa a cikin masana'antar sinadarai na yau da kullun, kuma ana iya amfani dashi don fashewa, Moss, gel gyaran gashi, gyaran gashi, da dai sauransu Ƙara PVP zuwa rini na gashi. da gyare-gyare don kula da fata, kumfa stabilizers ga shamfu, dispersants da affinity jamiái don kalaman salo jamiái, da kuma zuwa cream da kuma sunscreen iya inganta wetting 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-aikacen PVP na magani: Daga cikin jerin PVP-K, k30 yana ɗaya daga cikin abubuwan haɓakar roba da aka yi amfani da su, galibi don wakilai na samarwa, wakilai na manne don granules, wakilai masu ci gaba, adjuvants da stabilizers don allura, kayan taimako na gudana, masu rarrabawa don tsarin ruwa. da chromophores, stabilizers ga enzymes da thermosensitive kwayoyi, co precipitants ga wuya jure kwayoyi, extenders for ophthalmic lubricants, da kuma shafi film-forming jamiái.

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.