Kuchita bwino kwambiri kwa ma poly apamwamba kwambiri (1-vinylpyrrolidone-vinyl acetate) kuchokera kwa opanga otchuka

Zikafika pama polima apamwamba kwambiri, dzina limodzi limadziwika kwambiri pamsika - poly(1-vinylpyrrolidone-co-vinyl acetate).Copolymer iyi, yomwe imapangidwa ndi vinylpyrrolidone (VP) ndi vinyl acetate (VA) kudzera mu polymerization yaulere, imakhala ndi mbiri yayikulu m'mafakitale osiyanasiyana.Makhalidwe ake abwino kwambiri amachititsa kuti ikhale yofunika kwambiri pazinthu zambiri.Mubulogu iyi, tiwona bwino zomwe zili ndi polima iyi kuchokera kwa wopanga wodziwika bwino ndikuwunika chifukwa chake ili yotchuka.

Kusiyanasiyana kwa poly (1-vinylpyrrolidone-vinyl acetate) ndi chimodzi mwazabwino zake zazikulu.Mapangidwe ake amamupangitsa kuti awonetse kusungunuka kwabwino m'madzi ndi ma organic solvents.Katundu wapaderawa umapangitsa kukhala koyenera kugwiritsa ntchito zosiyanasiyana monga zomatira, zokutira, ndi njira zoperekera mankhwala.Kutha kwa copolymer kusungunula zinthu zonse za hydrophilic ndi lipophilic kumapangitsa kuti ikhale njira yosunthika pamafakitale osiyanasiyana.

Kuphatikiza pa kusinthasintha, copolymer ili ndi luso labwino kwambiri lopanga mafilimu.Ikagwiritsidwa ntchito pamwamba, imapanga filimu yofanana, yowonekera, yomwe imakhala yabwino kwa zokutira ndi zigawo zoteteza.Pula yapamwamba kwambiri (1-vinylpyrrolidone-vinyl acetate) imaonetsetsa kuti pakhale malo osalala komanso okhazikika, oteteza ku chinyezi, kutentha ndi kuyabwa.Katunduyu amapanga chinthu chofunikira kwambiri popanga utoto, inki ndi zokutira zamafakitale.

Chimodzi mwazinthu zodziwika bwino za polima wapamwamba kwambiri ndi kuthekera kwake kolumikizana.Chifukwa cha kapangidwe kake ka maselo, poly(1-vinylpyrrolidone-vinyl acetate) imamatira kwambiri pamalo osiyanasiyana, kuphatikiza magalasi, zitsulo, ndi mapulasitiki.Izi zimapangitsa kuti zikhale zofunikira pakupanga zomatira, zomatira ndi tepi.Mphamvu zake zapamwamba zomangira komanso kukana chinyezi zimatsimikizira zomangira zokhalitsa ngakhale m'malo ovuta.

Poly(1-vinylpyrrolidone-vinyl acetate) imadziwika ndi kukhazikika kwake komanso kugwirizana ndi zida zina.Katundu wake wa antioxidant, kukana kwa radiation ya UV komanso kukana kusinthasintha kwa kutentha kumapangitsa kukhala koyenera kwamitundu yosiyanasiyana.Kaya imagwiritsidwa ntchito muzamankhwala, zodzoladzola kapena mafakitale, copolymer iyi imapereka bata komanso kulimba.Kuphatikiza apo, kugwirizana kwake ndi zowonjezera zosiyanasiyana ndi zosakaniza zogwira ntchito kumapangitsa kuti ntchito yomaliza ikhale yogwira ntchito komanso yogwira mtima.

Mwachidule, pulasitiki yapamwamba kwambiri (1-vinylpyrrolidone-co-vinyl acetate) yatsimikizira kuti ndi polima wamtengo wapatali m'mafakitale osawerengeka.Kusungunuka kwake kwakukulu, luso lopanga mafilimu, zomatira, kukhazikika ndi kuyanjana kumapanga chisankho choyamba cha opanga ndi opanga.Kaya mukuyang'ana chopangira chosinthika cha zokutira, zomatira kapena makina operekera mankhwala, copolymer iyi imatsimikizira magwiridwe antchito apamwamba kwambiri.Khulupirirani polima wapadera uyu kuti mutsegule zomwe mungagule.