Characterization of Gamma Irradiated Isotactic Polypropylene by Mixtures of Hindered Amine/Organo-Phosphite Stabilizers

Min Li; Li Guang Xiao; Hong Kai Zhao

doi:10.4028/www.scientific.net/AMM.457-458.297

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 457-458Characterization of Gamma Irradiated Isotactic...

Characterization of Gamma Irradiated Isotactic Polypropylene by Mixtures of Hindered Amine/Organo-Phosphite Stabilizers

Abstract:

In this work, the effect of γ-irradiation on neat polypropylene (PP) and PP with the stabilizers have been studied by means of wide-angle X-ray diffraction (WAXD) and tensile properties. There is a new reflex 300, β-phase, appeared in irradiated neat PP sample, compared with non-irradiated neat PP sample. When T/S ratio are 0.1 wt%/0.1 wt% and 0.1 wt%/0.3 wt% of PP, the reflex 300 of irradiated PP with different radiation doses all increased. However T/S content is 0.1 wt%/0.5 wt% of PP, the reflex 300 is not appeared. Among the samples which contain stabilizers, the stabilization of PP against γ-irradiation increased, compared with neat PP.