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Wykonano badania EPR kompozytów polipropylenu (PP) i polietylenu (PE) z domieszkami 20, 10 i 2,5 % wag. szungitu-III i antracytu. Stwierdzono, że widma EPR kompozytów PP i PE różnią się w zależności od ilości i rodzaju sproszkowanego węgla. Widać wyraźnie, że, widmo szungitu-III po wprowadzeniu do matrycy polimerowej ulega przeobrażeniu natomiast widmo antracytu praktycznie nie zmienia się. Pozwala...
Radiation-induced radicals in poly(ethylene terephthalate) (PET) and polypropylene (PP) and in their composites were studied by ESR. In pure PET, the radicals were not stabilized at room temperature but, in PET/PP composites (10-20% of PP), peroxy radicals were recorded at concentrations indicating the radical centers formed originally in PET units to be able to migrate to PP units where they become...
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