Polyethylene and poly(propylene)/clay nanocomposites

Abstract

PP a PE nankompozity byly studovány pro zjištění mechanických a barierových vlastností. Struktura byla sledována pomocí RTG a TEM metod. Byly použity čtyři typy nanoplniv: Nanofil 5,8,9 a 3000. Pro PE matrici mechanické vlastnosti byly horší ve srovnání s čistým PE. Pro PP bylo zjištěno, že vzorky s Nanofilem 9 a 3000 mají lepší mechanické i barierové vlastnosti. Toto bylo vysvětleno lepší dispergací nanoplniva potvrzené RTG a TEM metodou.

Polyethylene and polypropylene nanocomposites were investigated with focus on mechanical and barrier properties. Structure was observed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Four types of nano-filler were used: Nanofil 5, 8, 9 and 3000. in case of polyethylene nanocomposites the dispersion and intercalation was to low extent. Mechanical and barrier properties were worse compared to pure PE. in case of polypropylene with Nanofil 5, 9 and 3000 tensile strength was better compared to pure PP. Also PP with Nanofil 9 and 3000 had better barrier properties than pure PP for both O(2) and CO(2) This was explained by better intercalation and dispersion of the filler documented by XRD measurement and TEM observation.