nkhani

Polyvinylpyrrolidoneimatchedwanso PVP, nambala ya CAS ndi 9003-39-8. PVP ndi chinthu chopangidwa ndi polima chosungunuka m'madzi chomwe chimapangidwa kuchokera ku polymerizedN-vinylpyrrolidone (NVP)pazifukwa zina. Panthawi imodzimodziyo, PVP ili ndi kusungunuka kwabwino kwambiri, kukhazikika kwa mankhwala, luso lopanga mafilimu, kawopsedwe kakang'ono, kawopsedwe kakang'ono ka thupi, kuyamwa kwamadzi ndi mphamvu zonyowa, kugwirizanitsa mphamvu, ndi zomatira zotetezera. Itha kuphatikizika ndi zinthu zambiri zachilengedwe komanso zachilengedwe monga zowonjezera, zowonjezera, zida zothandizira, ndi zina.

Polyvinylpyrrolidone (PVP) wakhala akugwiritsidwa ntchito m'madera osiyanasiyana monga mankhwala, zodzoladzola, chakudya ndi chakumwa, moŵa, nsalu, kupatukana zimagwira ntchito zosiyanasiyana, etc. Ndi chitukuko cha mankhwala atsopano sayansi ndi luso, PVP wakhala ntchito m'minda chatekinoloje zotere monga chithunzi kuchiritsa utomoni, kuwala CHIKWANGWANI, zimbale laser, zimbale laser, zimbale zosiyanasiyana, kukoka PVP akhoza kugawidwa m'magulu osiyanasiyana: kalasi yamankhwala, kalasi yamankhwala yatsiku ndi tsiku, kalasi yazakudya, ndi kalasi yamakampani.

Chifukwa chachikuluMtengo PVPItha kugwiritsidwa ntchito ngati co precipitant ndikuti ma ligands mu mamolekyu a PVP amatha kuphatikiza ndi haidrojeni yogwira mu mamolekyu osasungunuka. Kumbali imodzi, mamolekyu ang'onoang'ono amakhala amorphous ndikulowa PVP macromolecules. Kumbali ina, kugwirizana kwa haidrojeni sikumasintha kusungunuka kwa madzi kwa PVP, kotero zotsatira zake ndi kuti ma molekyulu osasungunuka amamwazika mu pVp macromolecules kupyolera mu mgwirizano wa haidrojeni, kuwapangitsa kukhala kosavuta kusungunuka. Pali mitundu yambiri ya PVP, Timasankha bwanji chitsanzocho posankha. Pamene kuchuluka (kuchuluka) kwa PVP kuli kofanana, kuwonjezeka kwa kusungunuka kumachepa mwa dongosolo la PVP K15>PVP K30>PVP K90. Izi zili choncho chifukwa mphamvu ya solubilization ya PVP yokha imasintha mu dongosolo la PVP K15>PVP K30>PVP K90. Nthawi zambiri, pVp K 15 imagwiritsidwa ntchito kwambiri.

Za m'badwo wa PVP: NVP yekha, monomer, amatenga nawo mbali mu polymerization, ndipo mankhwala ake ndi Polyvinylpyrrolidone (PVP). NVP monomer imakumana ndi self crosslinking reaction kapena NVP monomer imakumana ndi crosslinking copolymerization reaction ndi crosslinking agent (yokhala ndi magulu angapo a unsaturated gulu), ndipo mankhwala ake ndi Polyvinylpyrrolidone (PVPP). Tingaone kuti zosiyanasiyana polymerization mankhwala akhoza kupangidwa ndi kulamulira zinthu zosiyanasiyana polymerization ndondomeko.

Timamvetsetsa kayendedwe ka PVP

Kugwiritsa ntchito mafakitale kalasi PVP: PVP-K mndandanda angagwiritsidwe ntchito ngati filimu wothandizila, thickener, lubricant ndi zomatira mu makampani tsiku mankhwala, ndipo angagwiritsidwe ntchito kuphulika, Moss, tsitsi fixative gel osakaniza, tsitsi fixative, etc. Kuwonjezera PVP kwa utoto utoto ndi modifiers kwa chisamaliro khungu, thovu stabilizers kwa shampoos, dispersants ndi yoweyula ndi zonona suntting wothandizira, dispersants ndi yoweyula ndi zonona suntting wothandizila. lubricating zotsatira. Kachiwiri, kuwonjezera PVP ku chotsukira kumakhala ndi anti color effect ndipo kumatha kukulitsa luso loyeretsa.

Kugwiritsa ntchito PVP m'minda yamafakitale ndiukadaulo wapamwamba: PVP itha kugwiritsidwa ntchito ngati ❖ kuyanika pamwamba, dispersant, thickener, ndi zomatira mu inki, inki yosindikiza, nsalu, kusindikiza ndi utoto, ndi machubu azithunzi. PVP imatha kupititsa patsogolo ntchito zomatira pazitsulo, galasi, pulasitiki ndi zinthu zina. Kuphatikiza apo, PVP imagwiritsidwa ntchito kwambiri popatukana nembanemba, ultrafiltration nembanemba, microfiltration nembanemba, nanofiltration nembanemba, kufufuza mafuta, zithunzi kuchiritsa utomoni, utoto ndi zokutira, CHIKWANGWANI kuwala, zimbale laser ndi zina akutuluka chatekinoloje minda.

Kugwiritsa ntchito mankhwala kalasi PVP: Pakati pa PVP-K mndandanda, k30 ndi mmodzi wa excipients kupanga ntchito, makamaka kwa wothandizila kupanga, zomatira wothandizila granules, kupitiriza-kumasulidwa wothandizila, adjuvants ndi stabilizers kwa jakisoni, otaya zothandizira, dispersants kwa formulations madzi ndi chromophores, stabilizers ndi codziwikiratu mankhwala, stabilizers ndi stabilizers zovuta za mankhwala. kulekerera mankhwala, zowonjezera zamafuta odzola m'maso, ndi zokutira zopangira mafilimu.

Polyvinylpyrrolidone ndi ma polima ake, monga zida zatsopano zamakina abwino, amagwiritsidwa ntchito kwambiri muzamankhwala, chakudya, mankhwala atsiku ndi tsiku, kusindikiza ndi utoto, zokutira za pigment, zida zamankhwala, zida zochizira madzi ndi magawo ena, ndi chiyembekezo chogwiritsa ntchito msika waukulu. Pambuyo pazaka zambiri zofufuza mosalekeza, tapanga zinthu zosiyanasiyana zophatikiza, kuphatikiza izi:

Mwachidule, mndandanda wazinthu za PVP zimagwira ntchito bwino kwambiri ndipo zimagwiritsidwa ntchito kwambiri ngati zowonjezera polima muzamankhwala, zokutira, utoto, utomoni, inki za fiber, zomatira, zotsukira, kusindikiza nsalu ndi utoto. PVP, ngati polima surfactant, itha kugwiritsidwa ntchito ngati dispersant, emulsifier, thickener, leveling agent, mamasukidwe akayendedwe regulator, anti kubalana madzi agent, coagulant, cosolvent, ndi detergent mu machitidwe osiyana kubalalitsidwa.