Chii chinonzi Polyvinylpyrrolidone (PVP)?
Polyvinylpyrrolidone, rakadimburirwa sePVP. Polyvinylpyrrolidone (PVP) isiri-ionic polymer compound inogadzirwa ne polymerization yeN-vinylpyrrolidone (NVP) pasi pemamwe mamiriro. Inoshandiswa seyakagadziriswa, yekuwedzera, uye excipient muminda yakawanda yakadai semushonga, machira, makemikari, chinwiwa, uye makemikari ezuva nezuva. Zvinoenderana nezvinodiwa zvechigadzirwa, PVP inogona kukamurwa kuita mhando ina: giredhi reindasitiri, giredhi rekushongedza, giredhi rekudya, uye giredhi remishonga. Homopolymers, copolymers, uye cross-yakabatana polymer akatevedzana zvigadzirwa zvine huremu hwemamorekuru kubva kuzviuru kusvika kune anopfuura miriyoni imwe zvakashandiswa zvakanyanya nekuda kwehunhu hwazvo hwakanaka uye hwakasiyana.
PVP yakakamurwa kuita nhanho ina zvichienderana neavhareji uremu hwemamorekuru, uye inowanzomiririrwa neK kukosha. Akasiyana K makoshero anomiririra huwandu hunoenderana hweavhareji yemamorekuru huremu hwePVP. Iko kukosha kweK ihwo hunokosha hunokosha hune hukama nehukama hwekuona kwePVP aqueous solution, uye viscosity huwandu hwemuviri hunoenderana nehuremu hwemapolymers. Naizvozvo, kukosha kweK kunogona kushandiswa kuratidza avhareji yemamorekuru huremu hwePVP. Kazhinji, iyo yakakura kukosha kweK, inokwirisa viscosity yayo uye yakasimba kunama kwayo. Iwo makuru echigadzirwa mhando uye zvakatemwa zvePVP zvinogona kuiswa muviscosity mazinga eK-15, K17, K25, K-30, K60, uye K-90 zvichienderana nehuremu hwemamorekuru.
UNILONG INDUSTRY inogona kupa zvinoteveraPVP-Kseries products:
| TYPE | PVP K12 | PVP K15 | PVP K17 | PVP K25 | PVP K30 | PVP K60 | PVP K90 | |
| Chitarisiko | Upfu chena | |||||||
| K Kukosha | 10.2-13.8 | 12.75-17.25 | 15.3-18.36 | 22.5-27.0 | 27-32.4 | 54-64.8 | 81-97.2 | |
| NVP imwe chete kusachena (kusachena A) | (CP2005/USP26) % max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| (USP31/EP6/BP2007) ppm max | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Mvura % max | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | |
| Content % min | 95 | 95 | 95 | 95 | 95 | 95 | 95 | |
| pH (5% aqueous solution) | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 4.0-7.0 | 4.0-7.0 | |
| Sulfate ash% max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |
| Nitrogen content ﹪ | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | |
| 2-P zvemukati % max | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | |
| Aldehyde ppm max | 500 | 500 | 500 | 500 | 500 | 500 | 500 | |
| Heavy metal ppm max | 10 | 10 | 10 | 10 | 10 | 10 | 10 | |
| Hydrazine ppm max | 1 | 1 | 1 | 1 | 1 | 1 | 1 | |
| Hydrogen peroxide ppm max | 400 | 400 | 400 | 400 | 400 | 400 | 400 | |
PVP, seyakagadzirwa nemvura-inonyungudika yepolymer musanganiswa, ine huwandu hwehuwandu hwemvura-inonyungudika polymer komisheni, kusanganisira kudzivirira kwecolloid, firimu-kuumba, kusungirira, kunwa hunyoro, solubilization kana coagulation. Nekudaro, iyo inonyanya kusiyanisa chimiro ndeye yakanakisa solubility uye physiological kuenderana, izvo zvakwezva kutarisa. Muma polymers ekugadzira, PVP, inonyungudika mumvura uye yakawanda organic zvinonyungudutsa, ine muchetura wakaderera, uye kuenderana kwakanaka kwemuviri, haiwanzo kuoneka, kunyanya muminda ine hukama hwepedyo nehutano hwevanhu semushonga, chikafu, uye zvekuzora. Iyi inotevera sumo chaiyo kune yayo nzvimbo dzekushandisa:
Mumunda wezvizoro zvezuva nezuva
Muzvizoro zvemazuva ese, PVP uye copolymer vane yakanaka dispersibility uye firimu-kugadzira pfuma. PVP inogona kuchengetedza colloid mune lotion, uye inogona kushandiswa mumafuta uye asiri mafuta makirimu, sekuisa mvura, bvudzi pfapfaidzo uye mousse yekumisikidza agent, bvudzi conditioner sunscreen, shampoo foam stabilizer, wave set agent, uye bvudzi dye dispersant uye affinity agent. Kuwedzera PVP kune sinou cream, sunscreen, uye vhudzi rekubvisa maajenti zvinogona kuwedzera kunyorova uye lubrication mhedzisiro.
Washing munda
PVP ine anti fouling uye kudzorera kunaya kwemvura uye inogona kushandiswa kugadzira zvinoonekera zvinwiwa kana zvinorema fouling detergents. Kuwedzera PVP kune zvekugezesa kune yakanaka anti discoloration athari uye inogona kuwedzera kuchenesa kugona. Paunenge uchigeza machira, zvinogona kudzivirira majekiseni ekugadzira kubva pakushatisa ganda, kunyanya mafibhi ekugadzira. Kuita uku kwakatanhamara kupfuura carboxymethyl cellulose (CMC) detergents. PVP inogona kusanganiswa neborax sechinhu chinoshanda mukugadzira phenolic disinfectant cleaning agents. Detergent inoumbwa nePVP nehydrogen peroxide ine mabasa ekuchena nekuuraya mabhakitiriya.
Textile kudhinda uye dhayi
PVP ine hukama hwakanaka nedhayi dzakawanda dzeorganic uye inogona kusanganisa nehydrophobic synthetic fibers senge polyacrylonitrile, esters, nylon, uye fibrous zvinhu kuvandudza simba rekudhaya uye hydrophilicity. Mushure mePVP uye nylon grafting copolymerization, jira rakagadzirwa rakanatsiridza hunyoro hwayo uye kuramba hunyoro.
Coatings uye pigments
Pendi uye machira akaputirwa nePVP akajeka asingakanganise ruvara rwavo rwechisikigo, kuvandudza kupenya uye dispersibility yejasi uye pigment, inosimudzira kugadzikana kwekupisa, uye kuvandudza dispersibility yeingi neingi.
Munda wezvokurapa
PVP ine physiological inertness yakanakisa, haitore chikamu mumetabolism yemunhu, uye ine biocompatibility yakanakisa, iyo isingakonzere kutsamwisa kweganda, mucosa, maziso, etc. Medical giredhi PVP chimwe chezvitatu zvikuru zvitsva zvemishonga zvinotsigirwa pasi rose, izvo. inogona kushandiswa sebinder yemapiritsi uye granules, co solvent yemajekiseni, uye inoyerera yekubatsira macapsules; Detoxifiers, extenders, lubricant uye firimu-forming agents for ziso madonhwe, dispersants for liquid formulations, stabilizers for enzymes uye thermosensitive drugs, uye inogonawo kushandiswa seyakadzika-tembiricha inochengetedza. Inoshandiswa kune contact lenses kuwedzera yavo hydrophilicity uye lubricity. Mukuwedzera, PVP inogonawo kushandiswa semuvara uye X-ray musiyano mumiririri; Inogona kushandiswa kune akasiyana dosage mafomu emishonga senge mahwendefa, granules, uye mvura. Iyo ine detoxification, hemostasis, yakawedzera kunyungudika concentration, kudzivirira peritoneal adhesion, uye kukurudzira erythrocyte sedimentation rate. PVP K30 yakatangwa zviri pamutemo nemvumo yebazi renyika rinoona nezvemishonga.
Kugadziriswa kwezvokudya
PVP pachayo haisi carcinogenic uye ine chikafu chekuchengetedza kwakanaka. Inogona kuumba macomplexes ane chaiwo polyphenolic komisheni (senge tannins) uye inonyanya kushandiswa seyakajeka uye inodzikamisa mumiriri mukugadzira chikafu, sedoro, muto wemichero, uye waini. PVP inogona kugadzira macomplexes ane chaiwo polyphenolic komisheni (senge tannins), ayo anoita basa rekujekesa uye anticoagulant muzvinwiwa zvemichero yemuchero. Iko kushandiswa kwePVP-yakabatana mudoro uye zvinwiwa zvetii kwakanyanya kupararira. Polyphenolic zvinhu mudoro zvinogona kusunga nemapuroteni mudoro kuita tannin macromolecular complexes, iyo inokanganisa zvakanyanya kunaka kwedoro uye kupfupisa hupenyu hwayo hwesherufu. Crosslinked polyvinylpyrrolidone (PVPP) inogona chelate ne tannic acid uye anthocyanins mudoro, nekudaro ichijekesa doro, ichivandudza kugadzikana kwaro, uye kuwedzera hupenyu hwayo hwesherufu. Muzvinwiwa zvetii, kushandiswa kwePVPP kunogona kudzikisa zvakakodzera zvirimo zvetii polyphenols, uye PVPP hairambe iri muzvinwiwa zvetii, ichiita kuti ishandiswe zvakare uye kuderedza zvakanyanya mutengo.
Nzvimbo huru dzekushandisa dzePVP parizvino dzakanangana mumaindasitiri emazuva ese emakemikari nemishonga, uye kukura kwemaindasitiri maviri aya kucharamba kuchifambisa kudiwa kukuru kwePVP kushandiswa mune ramangwana. Mundima iri kubuda yePVP, mune lithiamu bhatiri indasitiri, PVP inogona kushandiswa seyakapararira yelithium bhatiri electrodes uye rubatsiro rwekugadzirisa zvinhu zvinoitisa; Muindasitiri yephotovoltaic, PVP inogona kushandiswa seanoparadzira kugadzira yepamusoro-soro spherical sirivheri poda kune yakanaka electrode sirivheri paste, shizha-senge sirivheri poda kune negative electrode sirivheri paste, uye nano sirivheri zvimedu. Nekuenderera mberi kwekuvandudzwa kwerithium bhatiri yekupinda mwero uye nekuwedzera kweiyo photovoltaic yakaiswa simba, idzi minda mbiri dziri kubuda dzichafambisa zvakanyanya kudiwa kwePVP.
Unilong inyanzvi yekutengesa, uye iyoPVP seriesyakagadzirwa uye yakagadzirwa kwemakore gumi. Nekuchinja kwemusika, kupihwa kwePVP zvigadzirwa kuri kushomeka. Parizvino, takawedzera mimwe mitsetse miviri yekugadzira, ine mari yakakwana uye nemitengo yakanaka. Ndapota inzwa wakasununguka kubvunza.
Nguva yekutumira: Zvita-01-2023