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Kodi Polyvinylpyrrolidone (PVP) ndi chiyani?

Polyvinylpyrrolidone, mwachidule kuti PVP. Imagwiritsidwa ntchito ngati chowonjezera, chowonjezera, komanso chowonjezera m'magawo osiyanasiyana monga mankhwala, nsalu, mankhwala, zakumwa, ndi mankhwala a tsiku ndi tsiku. Malinga ndi zofunikira za malonda, PVP ikhoza kugawidwa m'magulu anayi: mtundu wa mafakitale, mtundu wa zodzoladzola, mtundu wa chakudya, ndi mtundu wa mankhwala. Ma homopolymers, ma copolymers, ndi zinthu zolumikizidwa ndi ma polymers okhala ndi kulemera kwa mamolekyu kuyambira masauzande ambiri mpaka kupitirira miliyoni imodzi zagwiritsidwa ntchito kwambiri chifukwa cha mawonekedwe awo abwino komanso apadera.

PVP imagawidwa m'magawo anayi kutengera kulemera kwake kwapakati pa mamolekyulu, ndipo nthawi zambiri imaimiridwa ndi ma K. Ma K osiyanasiyana amayimira kuchuluka kofanana kwa kulemera kwapakati pa mamolekyulu a PVP. Mtengo wa K kwenikweni ndi mtengo wodziwika bwino wokhudzana ndi kukhuthala kwa madzi a PVP, ndipo kukhuthala ndi kuchuluka kwa thupi kogwirizana ndi kulemera kwa mamolekyulu a ma polima. Chifukwa chake, mtengo wa K ungagwiritsidwe ntchito kufotokoza kulemera kwapakati pa mamolekyulu a PVP. Nthawi zambiri, mtengo wa K ukakhala waukulu, kukhuthala kwake kumakhala kwakukulu komanso kumamatira kwake kumakhala kolimba. Mitundu yayikulu yazinthu ndi mafotokozedwe a PVP amatha kugawidwa m'magulu a kukhuthala a K-15, K17, K25, K-30, K60, ndi K-90 kutengera kulemera kwa mamolekyulu.

UNILONG INDUSTRY ingapereke zotsatiraziPVP-Kzinthu zotsatizana:

PVP, monga mankhwala opangidwa ndi polima osungunuka m'madzi, ali ndi makhalidwe ambiri a mankhwala osungunuka m'madzi a polima, kuphatikizapo kuteteza colloid, kupanga filimu, kugwirizana, kuyamwa chinyezi, kusungunuka kapena kuuma. Komabe, chinthu chodziwika kwambiri ndi kusungunuka kwake kwabwino komanso kugwirizana kwa thupi, zomwe zakopa chidwi. Mu ma polima opangidwa, PVP, yomwe imasungunuka m'madzi ndi zinthu zambiri zachilengedwe, ili ndi poizoni wochepa, komanso kugwirizana kwabwino kwa thupi, siimapezeka kawirikawiri, makamaka m'magawo okhudzana kwambiri ndi thanzi la anthu monga mankhwala, chakudya, ndi zodzoladzola. Izi ndi njira yeniyeni yogwiritsira ntchito:

Mu gawo la zodzoladzola za tsiku ndi tsiku

Mu zodzoladzola za tsiku ndi tsiku, PVP ndi copolymer zimakhala ndi mphamvu yotha kusungunuka bwino komanso kupanga filimu. PVP imatha kuteteza colloid mu lotion, ndipo ingagwiritsidwe ntchito mu mafuta ndi mafuta osakhala mafuta, monga mafuta ophikira, mankhwala opopera tsitsi ndi mousse, mankhwala odzola tsitsi, mankhwala oletsa thovu la shampoo, mankhwala okhazikitsa mafunde, ndi mankhwala ochotsera utoto wa tsitsi ndi mankhwala ogwirizana. Kuwonjezera PVP ku kirimu wa chipale chofewa, mankhwala oteteza khungu ku dzuwa, ndi mankhwala ochotsera tsitsi kungathandize kunyowetsa ndi kudzola.

Malo ochapira zovala

PVP ili ndi mphamvu zoletsa kuipitsa komanso kubwezeretsanso mvula ndipo ingagwiritsidwe ntchito pokonza zakumwa zowonekera bwino kapena zotsukira zolemera. Kuwonjezera PVP ku zotsukira kumakhala ndi mphamvu yabwino yoletsa kusinthika kwa mtundu ndipo kungathandize kuyeretsa bwino. Mukatsuka nsalu, zimatha kuletsa zotsukira zopangidwa kuti zisakwiyitse khungu, makamaka ulusi wopangidwa. Kuchita bwino kumeneku ndi kwabwino kwambiri kuposa zotsukira za carboxymethyl cellulose (CMC). PVP ikhoza kuwonjezeredwa ndi borax ngati chosakaniza chogwira ntchito popanga mankhwala ophenolic ophera tizilombo. Chotsukira chomwe chimapangidwa ndi PVP ndi hydrogen peroxide chimagwira ntchito yoyeretsa ndi kupha mabakiteriya.

Kusindikiza ndi kupaka utoto nsalu

PVP imalumikizana bwino ndi utoto wambiri wachilengedwe ndipo imatha kusakanikirana ndi ulusi wopangidwa ndi hydrophobic monga polyacrylonitrile, esters, nayiloni, ndi zinthu za ulusi kuti iwonjezere mphamvu ya utoto komanso hydrophilicity. Pambuyo pa PVP ndi nylon grafting copolymerization, nsalu yopangidwayo idakulitsa kukana kwake chinyezi komanso kukana chinyezi.

Zophimba ndi utoto

Utoto ndi zokutira zopakidwa ndi PVP zimakhala zowonekera bwino popanda kukhudza mtundu wawo wachilengedwe, zimapangitsa kuti zokutira ndi utoto ziwoneke bwino komanso kuti zisafalikire, zimapangitsa kuti kutentha kukhale kolimba, komanso zimapangitsa kuti inki ndi inki zisamafalikire.

Gawo la zamankhwala

PVP ili ndi kufooka kwabwino kwa thupi, sichita nawo kagayidwe ka thupi ka anthu, ndipo imagwirizana bwino ndi zinthu zina, zomwe sizimayambitsa kuyabwa pakhungu, mucosa, maso, ndi zina zotero. PVP ya digiri ya zamankhwala ndi imodzi mwa zinthu zitatu zatsopano zopangira mankhwala zomwe zimalimbikitsidwa padziko lonse lapansi, zomwe zingagwiritsidwe ntchito ngati chomangira mapiritsi ndi tinthu tating'onoting'ono, chosungunulira pamodzi cha jakisoni, komanso chothandizira kuyenda kwa makapisozi; Zochotsa poizoni, zowonjezera, mafuta ndi zinthu zopangira filimu ya madontho a m'maso, zosakaniza zamadzimadzi, zokhazikika za ma enzyme ndi mankhwala ochepetsa kutentha, komanso zingagwiritsidwe ntchito ngati zosungira kutentha kochepa. Zimagwiritsidwa ntchito pa ma lens olumikizana kuti ziwonjezere kusinthasintha kwawo ndi kukhuthala. Kuphatikiza apo, PVP ingagwiritsidwenso ntchito ngati chopaka utoto ndi chosiyanitsa cha X-ray; Ingagwiritsidwe ntchito pamitundu yosiyanasiyana ya mankhwala monga mapiritsi, tinthu tating'onoting'ono, ndi madzi. Ili ndi detoxification, hemostasis, kuchuluka kwa kusungunuka, kupewa kumatirira kwa peritoneal, komanso kukweza kuchuluka kwa erythrocyte sedimentation. PVP K30 yakhazikitsidwa mwalamulo ndi chilolezo cha dipatimenti yoyang'anira mankhwala yadziko lonse.

Kukonza chakudya

PVP yokha siimayambitsa khansa ndipo ili ndi chitetezo chabwino cha chakudya. Imatha kupanga zinthu zosiyanasiyana ndi mankhwala enaake a polyphenolic (monga tannins) ndipo imagwiritsidwa ntchito kwambiri ngati choyeretsera ndi kukhazikika pokonza chakudya, monga mowa, madzi a zipatso, ndi vinyo. PVP imatha kupanga zinthu zosiyanasiyana ndi mankhwala enaake a polyphenolic (monga tannins), omwe amagwira ntchito yoyeretsa komanso yoletsa magazi kuundana m'zakumwa za zipatso. Kugwiritsa ntchito PVP yolumikizidwa mu mowa ndi zakumwa za tiyi ndikofala kwambiri. Zinthu za polyphenolic mu mowa zimatha kugwirizana ndi mapuloteni mu mowa kuti apange ma tannin macromolecular complexes, zomwe zimakhudza kwambiri kukoma kwa mowa ndikufupikitsa nthawi yake yosungira. Crosslinked polyvinylpyrrolidone (PVPP) imatha kukhala ndi tannic acid ndi anthocyanins mu mowa, motero imayeretsa mowa, kukonza kukhazikika kwake kosungira, ndikuwonjezera nthawi yake yosungira. Mu zakumwa za tiyi, kugwiritsa ntchito PVPP kumatha kuchepetsa kuchuluka kwa ma polyphenols a tiyi, ndipo PVPP simakhalabe mu zakumwa za tiyi, zomwe zimapangitsa kuti igwiritsidwenso ntchito ndikuchepetsa ndalama.

Madera akuluakulu ogwiritsira ntchito PVP pakadali pano akuyang'aniridwa kwambiri m'mafakitale opanga mankhwala ndi mankhwala tsiku ndi tsiku, ndipo kukula kwa mafakitale awiriwa kudzapitiliza kukweza kufunikira kwakukulu kwa kugwiritsa ntchito PVP mtsogolo. Mu gawo lomwe likubwera la PVP, mumakampani opanga mabatire a lithiamu, PVP ingagwiritsidwe ntchito ngati chotulutsira ma electrode a batire ya lithiamu komanso chothandizira kukonza zinthu zoyendetsera magetsi; Mumakampani opanga ma photovoltaic, PVP ingagwiritsidwe ntchito ngati chotulutsira ma electrode a batire ya lithiamu kuti apange ufa wa siliva wapamwamba kwambiri, ufa wa siliva wofanana ndi pepala wa electrode yoyipa, ndi tinthu ta nano siliva. Ndi kusintha kosalekeza kwa kuchuluka kwa kulowa kwa batire ya lithiamu komanso kuwonjezeka kwa mphamvu ya photovoltaic, magawo awiriwa omwe akutuluka adzakweza kwambiri kufunikira kwa PVP.

Unilong ndi wogulitsa waluso, ndipoMndandanda wa PVPyapangidwa ndi kupangidwa kwa zaka khumi. Chifukwa cha kusintha kwa msika, kupezeka kwa zinthu za PVP kukusowa. Pakadali pano, tawonjezera mizere iwiri yopangira, yokhala ndi zinthu zokwanira komanso mitengo yabwino. Chonde musazengereze kufunsa.