Вплив бактерицидної нанодисперсної добавки Ag/SiO2 на структуру та властивості мікроволокнистих поліпропіленових матеріалів

• Datum: 2012
• Hauptverfasser: Sapyanenko, O. O., Dzubenko, L. S., Gorbyk, P. P., Tsebrenko, M. V., Mel'nyk, I. A.
• Format: Artikel
• Sprache: Ukrainisch
• Veröffentlicht: Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine 2012
• Online Zugang: https://surfacezbir.com.ua/index.php/surface/article/view/488
• Назва журналу: Surface

By processing of blend polypropylene/copolyamide/(Ag/SiO2) – (PP/CPA/Ag/ SiO2) – new polypropylene microfibrous material (MFM), containing nanoparticles (NP) of silver, was produced. The influence of Ag/SiO2 bactericidal addition with area per unit of 215 m2/g on structure forming and phase transitions in PP/CPA blends with component ratio 30/70 in % of mass., have been studied with rheological measurements, UV-vis spectroscopy, optical microscopy and DTA techniques. The content of addition in pure composite was 0.05 – 3% of mass. It is established, that NP Ag/ SiO2 additions does not interfere for fiber forming of PP in CPA matrix. At low content of addition (0.05 – 0.5% mass.), one’s presence is stabilizing the liquid jets of PP in blend melt of PP/CPA, when flowing along forming hole. At higher addition concentration (1 – 3% of mass.), one’s stabilizing action is weak because of NP aggregation. The MFM, which removed from PP/CPA/Ag/ SiO2 extrudates, contains silver NP. This is important circumstance for creation of bactericidal and thin-fibrous filters.