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Kodi Polyvinylpyrrolidone (PVP) ndi chiyani?

Polyvinylpyrrolidone, yofupikitsidwa ngati PVP. Polyvinylpyrrolidone (PVP) ndi sanali ionic polima pawiri opangidwa ndi polymerization wa N-vinylpyrrolidone (NVP) pansi zina. Amagwiritsidwa ntchito ngati chothandizira, chowonjezera, komanso chothandizira m'magawo angapo monga mankhwala, nsalu, mankhwala, chakumwa, ndi mankhwala a tsiku ndi tsiku. Malingana ndi zofunikira zamalonda, PVP ikhoza kugawidwa m'magulu anayi: kalasi ya mafakitale, kalasi yodzikongoletsera, kalasi ya chakudya, ndi kalasi ya mankhwala. Ma homopolymers, ma copolymers, ndi zinthu zophatikizika za polima zokhala ndi zolemera zamamolekyulu kuyambira masauzande mpaka miliyoni imodzi zakhala zikugwiritsidwa ntchito kwambiri chifukwa cha zabwino zake komanso zapadera.

PVP imagawidwa m'magulu anayi kutengera kulemera kwake kwa maselo, ndipo kawirikawiri amaimiridwa ndi ma K. Miyezo yosiyana ya K imayimira mtundu wofananira wa kulemera kwa maselo a PVP. Mtengo wa K ndi mtengo wodziwika bwino wokhudzana ndi kukhuthala kwa PVP amadzimadzi, ndipo mamasukidwe akayendedwe ndi kuchuluka kwa thupi komwe kumakhudzana ndi kulemera kwa ma polima. Choncho, mtengo wa K ukhoza kugwiritsidwa ntchito kusonyeza kulemera kwa maselo a PVP. Nthawi zambiri, kukula kwa mtengo wa K, kumapangitsa kukhuthala kwake komanso kumamatira kwake mwamphamvu. Mitundu yayikulu yazogulitsa ndi mafotokozedwe a PVP zitha kugawidwa m'magulu a viscosity a K-15, K17, K25, K-30, K60, ndi K-90 kutengera kulemera kwa maselo.

UNILONG INDUSTRY ikhoza kupereka zotsatiraziPVP-Kmndandanda mankhwala:

Mtengo PVP, monga kupanga polima polima pawiri, ali ndi katundu ambiri amadzimadzi sungunuka polima mankhwala, kuphatikizapo colloid chitetezo, filimu kupanga, kugwirizana, mayamwidwe chinyezi, solubilization kapena coagulation. Komabe, chodziwika bwino kwambiri ndikusungunuka kwake komanso kuyanjana kwa thupi, zomwe zakopa chidwi. M'ma polima opangidwa, PVP, yomwe imasungunuka m'madzi ndi zosungunulira zambiri za organic, imakhala ndi kawopsedwe kakang'ono, komanso kuyanjana kwabwino kwa thupi, sikuwoneka kawirikawiri, makamaka m'magawo okhudzana kwambiri ndi thanzi la anthu monga mankhwala, chakudya, ndi zodzola. Zotsatirazi ndizofotokozera za madera ogwiritsira ntchito:

M'munda wa zodzoladzola tsiku

Mu zodzoladzola za tsiku ndi tsiku, PVP ndi copolymer zili ndi dispersibility zabwino ndi kupanga mafilimu katundu. PVP imatha kuteteza colloid mu mafuta odzola, ndipo itha kugwiritsidwa ntchito mumafuta opaka mafuta komanso osapaka mafuta, monga kuyika madzi, kutsitsi tsitsi ndi mousse, zoteteza ku dzuwa, shampu thovu stabilizer, wave setting agent, ndi dispersant hair dye and affinity agent. Kuonjezera PVP ku kirimu chipale chofewa, zoteteza padzuwa, ndi zochotsa tsitsi zimatha kukulitsa kunyowetsa ndi kudzoza.

Kuchapira munda

PVP ili ndi zinthu zoletsa kuipitsidwa ndi mpweya ndipo itha kugwiritsidwa ntchito popangira zakumwa zowonekera kapena zotsukira zolemetsa. Kuphatikiza PVP ku zotsukira kumakhala ndi anti discoloration effect ndipo kumatha kukulitsa luso loyeretsa. Potsuka nsalu, zimatha kuteteza zotsukira zopangira kuti zisakhumudwitse khungu, makamaka ulusi wopangira. Izi ndizopambana kuposa zotsukira za carboxymethyl cellulose (CMC). PVP ikhoza kuphatikizidwa ndi borax ngati chinthu chothandiza popanga mankhwala oyeretsa a phenolic. Chotsukira chopangidwa ndi PVP ndi hydrogen peroxide chimagwira ntchito yoyeretsa komanso kupha mabakiteriya.

Kusindikiza nsalu ndi utoto

PVP ili ndi mgwirizano wabwino ndi utoto wambiri wa organic ndipo imatha kuphatikiza ndi ulusi wopangidwa ndi hydrophobic monga polyacrylonitrile, esters, nayiloni, ndi zida za fibrous kuti apititse patsogolo mphamvu zodaya komanso hydrophilicity. Pambuyo PVP ndi nayiloni Ankalumikiza copolymerization, nsalu opangidwa bwino kukana chinyezi ndi kukana chinyezi.

Zopaka ndi ma pigment

Utoto ndi zokutira zokutira ndi PVP zimaonekera popanda kukhudza mtundu wawo wachilengedwe, kukonza gloss ndi dispersibility wa zokutira ndi inki, kupititsa patsogolo kukhazikika kwa matenthedwe, ndikusintha dispersibility inki ndi inki.

Malo azachipatala

PVP ili ndi inertness yabwino kwambiri ya thupi, sichita nawo kagayidwe ka anthu, ndipo imakhala ndi biocompatibility yabwino kwambiri, yomwe simayambitsa kupsa mtima kwa khungu, mucous membrane, maso, ndi zina zotero. Medical grade PVP ndi imodzi mwazinthu zazikulu zitatu zatsopano zothandizira mankhwala zomwe zimalimbikitsidwa padziko lonse lapansi. itha kugwiritsidwa ntchito ngati chomangira pamapiritsi ndi ma granules, chosungunulira cha jakisoni, komanso chothandizira pamakapisozi; Ma detoxifiers, extender, lubricant and film-forming agents for diso dontho, dispersants for liquid formulations, stabilizers for enzymes and thermosensitive drugs, and angagwiritsidwenso ntchito ngati zoteteza kutsika kutentha. Amagwiritsidwa ntchito ngati ma lens kuti awonjezere hydrophilicity ndi lubricity. Kuphatikiza apo, PVP itha kugwiritsidwanso ntchito ngati utoto ndi X-ray wosiyanitsa; Itha kugwiritsidwa ntchito pamitundu yosiyanasiyana yamankhwala monga mapiritsi, ma granules, ndi madzi. Imakhala ndi detoxification, hemostasis, kuchuluka kwa kusungunuka kwamadzi, kupewa kumamatira kwa peritoneal, ndikulimbikitsa kuchuluka kwa erythrocyte sedimentation. PVP K30 yakhazikitsidwa mwalamulo ndi chivomerezo cha dipatimenti yoyang'anira zamankhwala mdziko muno.

Kukonza chakudya

PVP yokha si carcinogenic ndipo ili ndi chitetezo chabwino cha chakudya. Ikhoza kupanga ma complexes omwe ali ndi mankhwala enaake a polyphenolic (monga tannins) ndipo amagwiritsidwa ntchito makamaka ngati chowunikira komanso chokhazikika pakupanga zakudya, monga mowa, madzi a zipatso, ndi vinyo. PVP imatha kupanga ma complexes okhala ndi zinthu zina za polyphenolic (monga tannins), zomwe zimagwira ntchito yowunikira komanso anticoagulant mu zakumwa zamadzi a zipatso. Kugwiritsa ntchito PVP yolumikizirana mumowa ndi zakumwa za tiyi ndikofala kwambiri. Zinthu za polyphenolic zomwe zili mumowa zimatha kumangika ndi mapuloteni mumowa kupanga ma tannin macromolecular complexes, omwe amakhudza kwambiri kukoma kwa mowa ndikufupikitsa moyo wake wa alumali. Crosslinked polyvinylpyrrolidone (PVPP) imatha kukhala ndi tannic acid ndi anthocyanins mumowa, potero kumveketsa moŵa, kuwongolera kukhazikika kwake, ndikukulitsa moyo wake wa alumali. Mu zakumwa za tiyi, kugwiritsa ntchito PVPP kungachepetse moyenera zomwe zili mu tiyi ya polyphenols, ndipo PVPP sikhalabe mu zakumwa za tiyi, zomwe zimapangitsa kuti zigwiritsidwenso ntchito komanso kuchepetsa kwambiri ndalama.

Madera akuluakulu ogwiritsira ntchito PVP pakadali pano akukhazikika m'mafakitale atsiku ndi tsiku a mankhwala ndi mankhwala, ndipo kukula kwa mafakitale awiriwa kupitilira kuyendetsa kufunikira kwakukulu kwa PVP mtsogolomo. M'munda akutuluka PVP, mu lifiyamu batire makampani, PVP angagwiritsidwe ntchito ngati dispersant kwa lithiamu batire maelekitirodi ndi processing thandizo kwa zipangizo conductive; M'makampani a photovoltaic, PVP ikhoza kugwiritsidwa ntchito ngati dispersant kupanga ufa wapamwamba wa siliva wamtengo wapatali wa electrode siliva phala, pepala-ngati ufa wa siliva wa phala loipa la electrode siliva, ndi tinthu tasiliva ta nano. Ndikusintha kosalekeza kwa kuchuluka kwa batire ya lithiamu komanso kuchuluka kwa mphamvu yoyika ya photovoltaic, magawo awiri omwe akubwerawa adzayendetsa kufunikira kwa PVP.

Unilong ndi katswiri wothandizira, ndiMndandanda wa PVPyapangidwa ndi kupangidwa kwa zaka khumi. Ndi kusintha kwa msika, kupezeka kwa zinthu za PVP sikukwanira. Pakadali pano, tawonjezeranso mizere iwiri yopangira, yokhala ndi zokwanira komanso mitengo yabwino. Chonde khalani omasuka kufunsa.