Fakitale yotchuka yapamwamba Poly (1-vinylpyrrolidone-co-vinyl acetate)/VP/VA CAS:25086-89-9
Choyamba, copolymer iyi ili ndi zinthu zabwino kwambiri zopangira mafilimu.Itha kupanga filimu yomveka bwino yokhala ndi zomatira komanso zolimba.Izi zimapangitsa kuti zikhale zoyenera zopaka ndi zomatira zomwe zimagwiritsidwa ntchito pazinthu zosiyanasiyana kuphatikizapo utoto, ma varnish ndi ma varnish.
Kuphatikiza apo, vinylpyrrolidone-vinyl acetate copolymers amawonetsa kusungunuka kwabwino m'madzi ndi zosungunulira zosiyanasiyana.Kusungunuka kumeneku kumalola kuti agwiritsidwe ntchito ngati thickening wothandizira mumitundu yosiyanasiyana, kuphatikizapo zinthu zosamalira anthu monga ma gels atsitsi, opopera komanso odzola.Zomatira zabwino kwambiri za copolymer iyi imapangitsanso kuti ikhale yofunika kwambiri popanga mapiritsi ndi makapisozi amakampani opanga mankhwala.
Kuphatikiza apo, ma conductivity a vinylpyrrolidone-vinyl acetate copolymers amatha kusinthidwa malinga ndi zofunikira, kuwapanga kukhala oyenera pamagetsi ndi ntchito zokutira zowongolera.Kugwirizana kwake ndi magawo osiyanasiyana monga zitsulo, mapulasitiki ndi nsalu kumawonjezera kusinthasintha kwake komanso zothandiza.
Kuphatikiza apo, ma vinylpyrrolidone-vinyl acetate copolymers ndi okhazikika komanso osagwirizana ndi ma radiation a UV, kuwonetsetsa kukhazikika komanso kugwira ntchito kwanthawi yayitali kwa ntchito zakunja.Izi zimapangitsa kukhala chisankho chabwino kwambiri pazotchingira zoteteza panyumba, magalimoto ndi zida zamagetsi.
Mwachidule, ma vinylpyrrolidone-vinyl acetate copolymers ali ndi zinthu zabwino kwambiri zopangira mafilimu, kusungunuka, kukhathamiritsa kwamagetsi, komanso kukhazikika kwamafuta, zomwe zimapereka mwayi wambiri wamafakitale osiyanasiyana.Ntchito zake zimachokera ku zokutira ndi zomatira kupita kuzinthu zosamalira anthu ndi zamagetsi.Tili ndi chidaliro kuti ma vinylpyrrolidone-vinyl acetate copolymers athu adzakumana ndikupitilira zomwe mukuyembekezera ndi mawonekedwe awo apamwamba komanso magwiridwe antchito osasinthika.
Kufotokozera:
| Maonekedwe | Pa ufa woyera | Pa ufa woyera |
| Kuyesa (%) | ≥98.0 | 98.28 |
| Madzi (%) | ≤0.5 | 0.19 |
| Maonekedwe | Choyera mpaka chachikasu-choyera cha hygroscopic ufa kapena ma flakes | Zimagwirizana |
| K mtengo (%) | 25.2-30.8 | 29.5 |
| PH (1.0g mu 20ml) | 3.0-7.0 | 3.8 |
| Vinyl Acetate (%) | 35.3-41.4 | 37.2 |
| Nayitrogeni (%) | 7.0-8.0 | 7.3 |
| Zotsalira pakuyatsa (%) | ≤0.1 | Zimagwirizana |
| Zitsulo zolemera (PPM) | ≤10 | Zimagwirizana |
| Aldehydes(%) | ≤0.05 | 0.04 |
| Hydrazine (PPM) | ≤1 | <1 |
| Peroxides (monga H2O2) | ≤0.04 | 0.005 |
| Mowa wa Isopropyl(%) | ≤0.5 | 0.08 |
