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Kedu ihe bụ Polyvinylpyrrolidone (PVP)?

Polyvinylpyrrolidone, nke akpọrọ PVP. Polyvinylpyrrolidone (PVP) bụ ngwakọta polymer na-abụghị ionic mepụtara site na polymerization nke N-vinylpyrrolidone (NVP) n'okpuru ọnọdụ ụfọdụ. A na-eji ya dị ka ihe mgbakwunye, mgbakwunye na ihe ụtọ n'ọtụtụ mpaghara dị ka ọgwụ, textile, kemịkalụ, ihe ọṅụṅụ na kemịkalụ kwa ụbọchị. Dị ka ngwaahịa chọrọ, PVP nwere ike kewaa ụzọ anọ: ọkwa mmepụta ihe, ọkwa ịchọ mma, ọkwa nri, na ọkwa ọgwụ. Homopolymers, copolymers, and cross-linked polima series ngwaahịa nwere ihe dị arọ molekụla sitere na puku kwuru puku ruo ihe karịrị otu nde ka ejirila ya mee ihe n'ọtụtụ ebe n'ihi ọmarịcha na ihe pụrụ iche ha.

A na-ekewa PVP na ọkwa anọ dabere na nkezi arọ molekụla ya, ụkpụrụ K na-anọchi anya ya. Ụkpụrụ K dị iche iche na-anọchite anya nha nha molekụla PVP kwekọrọ. Uru K bụ n'ezie njirimara njirimara metụtara viscosity ikwu nke ngwọta mmiri PVP, na viscosity bụ ọnụọgụ anụ ahụ metụtara ịdị arọ molekul nke polymers. Ya mere, enwere ike iji uru K iji mara nkezi arọ molekụla nke PVP. Ọtụtụ mgbe, ka uru K na-ebuwanye ibu, ka viscosity ya dị elu ma na-esiwanye ike. Enwere ike kewaa ụdị ngwaahịa dị iche iche na nkọwapụta PVP n'ime ọkwa viscosity nke K-15, K17, K25, K-30, K60, na K-90 dabere na ịdị arọ molekụla.

UNILONG INDUSTRY nwere ike ịnye ihe ndị aPVP-Kngwaahịa usoro:

PVP, dị ka ihe na-emepụta ihe na-emepụta mmiri na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe, nwere ihe ndị dị n'ozuzu nke ihe ndị na-eme ka mmiri na-edozi mmiri, gụnyere nchebe colloid, ịmepụta ihe nkiri, njikọ, ntinye mmiri, solubilization ma ọ bụ coagulation. Otú ọ dị, njirimara ya kachasị dị iche iche bụ mma solubility ya na ndakọrịta physiological, nke dọtara mmasị. Na polymers sịntetik, PVP, nke na-agbaze na mmiri na ọtụtụ ihe ndị na-emepụta ihe na-edozi ahụ, nwere obere toxicity, na ezigbo ndakọrịta physiological, a naghị ahụkarị ya, karịsịa na mpaghara nwere njikọ chiri anya na ahụike mmadụ dị ka ọgwụ, nri, na ihe ịchọ mma. Nke a bụ mmalite mmalite maka mpaghara ngwa ya:

N'ọhịa nke ịchọ mma kwa ụbọchị

N'ihe ịchọ mma kwa ụbọchị, PVP na copolymer nwere ezigbo dispersibility na ihe na-emepụta ihe nkiri. PVP nwere ike kpuchido colloid na ude mmiri, enwere ike iji ya na ude abụba na-abụghị abụba, dị ka ịtọ mmiri mmiri, ịgba ntutu isi na onye na-edozi mousse, ihe mkpuchi ntutu sunscreen, ncha ntutu ncha ntutu, onye na-ese ihe na-efegharị efegharị, na ihe na-esiji ntutu isi na onye na-ahụ maka mmekọrịta. Ịtinye PVP na ude snow, ihe mkpuchi anwụ na ihe na-ewepụ ntutu nwere ike ịkwalite mmetụta wetting na mmanu mmanu.

Ebe ịsa ahụ

PVP nwere ihe na-egbochi mmetọ na nkwụghachi mmiri, enwere ike iji ya dozie mmiri mmiri na-agafe agafe ma ọ bụ ncha akwa dị arọ. Ịtinye PVP na ncha na-enwe mmetụta dị mma na-egbochi ịcha agba ma nwee ike ịkwalite ikike ihicha. Mgbe ị na-asa ákwà, ọ nwere ike igbochi ihe ndị na-edozi ahụ ka ọ ghara ịkpasu akpụkpọ ahụ, karịsịa eriri sịntetik. Ịrụ ọrụ a pụtara ìhè karịa ihe ncha carboxymethyl cellulose (CMC). Enwere ike ịgbakọta PVP na borax dị ka ihe na-arụ ọrụ nke ọma n'imepụta ihe na-ehicha ihe na-ekpochapụ phenolic. Ihe nchacha nke PVP na hydrogen peroxide mejupụtara nwere ọrụ nke ịcha ọcha na igbu nje bacteria.

Nbipụta akwa na ịcha akwa

PVP nwere ezigbo mmekọrịta na ọtụtụ ihe eji esiji ahịhịa ma nwee ike ijikọ ya na eriri sịntetik hydrophobic dị ka polyacrylonitrile, esters, naịlọn, na ihe fibrous iji meziwanye ike ịcha mmiri na hydrophilicity. Mgbe PVP na naịlọn grafting copolymerization gasịrị, ákwà a na-emepụta mere ka ọ dịkwuo mma nguzogide mmiri na nguzogide mmiri.

Mkpuchi na pigmenti

Agba na mkpuchi mkpuchi na PVP na-apụta ìhè na-enweghị emetụta ụcha okike ha, na-eme ka gloss na dispersibility nke mkpuchi na pigmenti, na-eme ka nkwụsi ike okpomọkụ, na-eme ka mgbasa nke inks na inks dịkwuo mma.

Ngalaba ahụike

PVP nwere magburu onwe physiological inertness, adịghị ekere òkè na mmadụ metabolism, na nwere magburu onwe biocompatibility, nke na-adịghị eme ka ọ bụla iyatesịt na akpụkpọ, mucosa, anya, wdg Medical ọkwa PVP bụ otu n'ime atọ isi ọhụrụ ọgwụ excipients kwadoro mba ụwa, nke. enwere ike iji ya dị ka ihe nkedo maka mbadamba nkume na granules, ihe mgbaze maka injections, na enyemaka na-asọpụta maka capsules; Detoxifiers, extenders, lubricants na film-forming agents maka anya drops, dispersants for water formulations, stabilizers for enzymes and thermosensitive drugs, na nwekwara ike iji dị ka obere okpomọkụ preservatives. A na-eji ya maka lenses kọntaktị iji mee ka hydrophilicity na mmanu dị elu. Tụkwasị na nke ahụ, a pụkwara iji PVP mee ihe dị ka ihe na-acha agba na X-ray iche iche; Enwere ike iji ya maka ụdị ọgwụgwọ dị iche iche dị ka mbadamba nkume, granules, na mmiri. Ọ nwere detoxification, hemostasis, ịba ụba mgbasa mgbasa, mgbochi nke peritoneal adhesion, na nkwalite nke erythrocyte sedimentation ọnụego. Ewepụtala PVP K30 n'ihu ọha site na nkwado nke ngalaba na-ahụ maka ọgwụ na mba.

Nhazi nri

PVP n'onwe ya abụghị carcinogenic ma nwee ezigbo nchekwa nri. Ọ nwere ike ịmepụta ogige nwere ogige polyphenolic kpọmkwem (dị ka tannins) ma na-ejikarị eme ihe dị ka onye na-akọwapụta ma na-eme ka ahụ sie ike na nhazi nri, dị ka biya, ihe ọṅụṅụ mkpụrụ osisi, na mmanya. PVP nwere ike ịmepụta ogige nwere ogige polyphenolic kpọmkwem (dịka tannins), nke na-arụ ọrụ ịkọwapụta na mgbochi ọbara n'ime ihe ọṅụṅụ ihe ọṅụṅụ mkpụrụ osisi. Ngwa nke PVP nwere njikọ chiri anya na biya na ihe ọṅụṅụ tii na-agbasa ebe niile. Ihe polyphenolic dị na biya nwere ike jikọta ya na protein na biya iji mepụta ogige tannin macromolecular, nke na-emetụta ekpomeekpo biya ma na-ebelata ndụ ya. Crosslinked polyvinylpyrrolidone (PVPP) nwere ike chelate na tannic acid na anthocyanins na biya, si otú ahụ dokwuo biya, na-eme ka nchekwa ya kwụsie ike, na ịgbatị ndụ shelf ya. N'ime ihe ọṅụṅụ tii, iji PVPP nwere ike ibelata ọdịnaya tii polyphenols n'ụzọ kwesịrị ekwesị, na PVPP adịghị anọgide na-aṅụ ihe ọṅụṅụ tii, na-eme ka ọ bụrụ nke a na-emegharị ma na-ebelata ọnụ ahịa.

Ebe isi ngwa nke PVP na-etinye ugbu a na kemịkalụ na ụlọ ọrụ ọgwụ kwa ụbọchị, na uto nke ụlọ ọrụ abụọ a ga-aga n'ihu na-ebute isi ihe achọrọ maka oriri PVP n'ọdịnihu. Na mpaghara PVP na-apụta, na ụlọ ọrụ batrị lithium, PVP nwere ike iji dị ka onye na-ekesa maka batrị batrị lithium na enyemaka nhazi maka ihe ndị na-eduzi; Na fotovoltaic ụlọ ọrụ, PVP nwere ike iji dị ka dispersant na-emepụta elu-edu sppherical silver ntụ ntụ maka nti electrode silver mado, mpempe akwụkwọ-dị ka ọlaọcha ntụ ntụ maka na-adịghị mma electrode ọlaọcha mado, na nano ọlaọcha ahụ. Site na mmụba na-aga n'ihu nke ntinye batrị lithium na mmụba nke ike arụnyere fotovoltaic, ubi abụọ a na-apụta ga-eme ka ọ dịkwuo mkpa maka PVP.

Unilong bụ ọkachamara na-ebubata ihe, yana ndịUsoro PVPemebela ma mepụta ya afọ iri. Site na mgbanwe ndị dị na ahịa, ịnye ngwaahịa PVP dị mkpụmkpụ. Ugbu a, anyị agbakwunyela ahịrị mmepụta abụọ ọzọ, yana ọkọnọ zuru oke yana ọnụ ahịa dị mma. Biko nweere onwe gị ịjụ.