ozi

Polyvinylpyrrolidonea na-akpọkwa PVP, nọmba CAS bụ 9003-39-8. PVP bụ ngwakọta mmiri na-agbaze mmiri nke na-esi na ya eme iheN-vinylpyrrolidone (NVP)n'okpuru ụfọdụ ọnọdụ. N'otu oge ahụ, PVP nwere ezigbo solubility, nkwụsi ike kemịkalụ, ikike imepụta ihe nkiri, obere nsị, inertness physiological, nnabata mmiri na ike mmiri, ikike njikọta, yana mmetụta nrapado nchebe. Ọ nwere ike jikọta ya na ọtụtụ ogige inorganic na organic dị ka ihe mgbakwunye, ihe mgbakwunye, ihe inyeaka, wdg.

A na-ejikarị Polyvinylpyrrolidone (PVP) mee ihe n'ụdị dị iche iche dị ka ọgwụ, ihe ịchọ mma, nri na ihe ọṅụṅụ, ime biya, textiles, membranes nkewa, wdg. Site na mmepe nke ngwaahịa sayensị na nkà na ụzụ ọhụrụ, a na-etinye PVP n'ọhịa dị elu. dị ka foto ọgwụgwọ resins, Optical fiber, laser discs, ịdọrọ mbenata ihe, wdg PVP na dị iche iche dị ọcha nwere ike kewaa anọ akara ule: ọgwụ ọkwa, kwa ụbọchị kemịkalụ ọkwa, nri ọkwa, na ulo oru ọkwa.

Isi ihe kpatara yaPVPenwere ike iji ya dị ka ihe na-emekọ ihe bụ na ligands dị na mkpụrụ ndụ PVP nwere ike jikọta ya na hydrogen na-arụ ọrụ na ụmụ irighiri mmiri. N'otu aka ahụ, ụmụ irighiri ihe dị ntakịrị na-aghọ amorphous wee banye macromolecules PVP. N'aka nke ọzọ, hydrogen bonding adịghị agbanwe mmiri solubility nke PVP, ya mere, ihe na-esi na ya pụta bụ na a na-agbasasị ụmụ irighiri mmiri na pVp macromolecules site hydrogen bonding, na-eme ka ha dị mfe igbari. Enwere ọtụtụ ụdị PVP, Kedu ka anyị ga-esi ahọrọ ihe nlereanya ahụ mgbe ị na-ahọrọ. Mgbe ego (oke) nke PVP bụ otu, mmụba nke solubility na-ebelata n'usoro nke PVP K15>PVP K30>PVP K90. Nke a bụ n'ihi na mmetụta solubilization nke PVP n'onwe ya na-agbanwe n'usoro nke PVP K15>PVP K30>PVP K90. N'ozuzu, a na-ejikarị pVp K 15 eme ihe.

Banyere ọgbọ PVP: naanị NVP, monomer, na-ekere òkè na polymerization, na ngwaahịa ya bụ Polyvinylpyrrolidone (PVP). NVP monomer na-enweta mmeghachi omume nke njikọ onwe ya ma ọ bụ NVP monomer na-enweta mmeghachi omume copolymerization na-ejikọta ya na onye na-ahụ maka crosslinking (nwere ọtụtụ ogige ndị na-adịghị mma), na ngwaahịa ya bụ Polyvinylpyrrolidone (PVPP). Enwere ike ịhụ na ngwaahịa polymerization dị iche iche nwere ike ịmepụta site na ịchịkwa ọnọdụ usoro polymerization dị iche iche.

Anyị ghọtara usoro nke PVP

Ngwa nke ụlọ ọrụ mmepụta ihe PVP: Enwere ike iji usoro PVP-K mee ihe dị ka onye na-ahụ maka ihe nkiri, onye na-egbuke egbuke, mmanye na nrapado na ụlọ ọrụ kemịkalụ kwa ụbọchị, a pụkwara iji ya mee ihe maka mgbawa, Moss, gel fixative gel, ntutu isi, wdg. na ndị na-agbanwe maka nlekọta anụ ahụ, ihe na-eme ka ụfụfụ maka shampoos, ndị na-ekesa na ndị na-ahụ maka mmekọ maka ihe ndị na-eme ka mmiri na-efegharị, na ude na ude anyanwụ nwere ike ịkwalite mmetụta wetting na mmanu mmanu. Nke abuo, ịgbakwunye PVP na nchacha nwere ezigbo mgbochi agba ma nwee ike ịkwalite ikike ihicha.

Ngwa nke PVP na ụlọ ọrụ mmepụta ihe na teknụzụ dị elu: Enwere ike iji PVP mee ihe dị ka onye na-ekpuchi elu, onye na-ekesa, ihe na-esi ísì ụtọ, na nrapado na pigmenti, inks na-ebipụta, textiles, mbipụta na ịcha akwa, na tubes foto agba. PVP nwere ike melite arụmọrụ njikọ nke nrapado na metal, iko, plastik na ihe ndị ọzọ. Na mgbakwunye, a na-ejikarị PVP eme ihe na nkewa nkewa, membranes ultrafiltration, membranes microfiltration, nanofiltration membranes, nchọpụta mmanụ, resins foto, agba na mkpuchi, eriri anya, diski laser na mpaghara teknụzụ ndị ọzọ na-apụta.

Ngwa nke ọkwa ọgwụ PVP: N'ime usoro PVP-K, k30 bụ otu n'ime ihe ndị na-emepụta sịntetik na-eji, tumadi maka ndị na-emepụta ihe, ihe nrapado maka granules, ndị na-ahapụ ya, adjuvants na stabilizers maka injections, ihe enyemaka na-asọpụta, ndị na-ekesa maka nhazi mmiri. na chromophores, stabilizers maka enzymes na ọgwụ thermosensitive, co precipitants maka siri ike ịnagide ọgwụ, extenders maka ophthalmic lubricants, na mkpuchi ihe na-emepụta ihe nkiri.

Polyvinylpyrrolidone na polymers ya, dị ka ihe ọhụrụ kemịkalụ kemịkalụ, na-eji ọgwụ, nri, kemịkalụ kwa ụbọchị, ibipụta na ịcha akwa, mkpuchi pigmenti, ihe ndu, ihe ọgwụgwọ mmiri na mpaghara ndị ọzọ, yana atụmanya ngwa ahịa sara mbara. Ka ọtụtụ afọ nke nyocha na-aga n'ihu, anyị ewepụtala ngwaahịa nchịkọta dị iche iche, gụnyere ndị a:

Na nkenke, usoro PVP nke ngwaahịa nwere arụmọrụ dị mma ma na-ejikarị eme ihe dị ka ihe mgbakwunye polymer na nkà mmụta ọgwụ, mkpuchi, pigmenti, resins, inks fiber, adhesives, detergents, textile printing and dyeing. PVP, dị ka polymer surfactant, enwere ike iji ya dị ka onye na-ekesa, emulsifier, thickener, leveling agent, viscosity regulator, mgbochi mmeputakwa mmiri mmiri, coagulant, cosolvent, na ncha n'ime dị iche iche dispersion usoro.