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Dynamic Mechanical Properties of Compatibilized PET with Radiation Oxidized HDPE

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Summary

Binary blends of HDPE/PET exhibit poor mechanical properties because of their non compatibility. In this work, HDPE was oxidized by gamma-ray preirradiation in air, subsequently heated to destroy peroxides formed by this irradiation and to form polar groups in the HDPE, and then extruded with PET as a compatibilizing method of the blend. The dynamic mechanical properties were studied, and an improvement was observed when the PET content was increased while the HDPE used was irradiated. The largest increase in the mechanical properties was observed for PET contents between 10 and 20% (w/w). The improvement in the dynamic mechanical properties is believed to occur because of a percolation effect of the PET in the HDPE matrix and the radiation-improved compatibility by means of polar groups formed in the polyethylene.

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Authors and Affiliations

  1. Centro de Investigación Científica de Yucatán, A.C., Calle 43 No. 130, Col Chuburná de Hidalgo, Mérida, C.P. 97200, Yucatán, Mexico

    Pedro J. Herrera-Franco & Fernando Hernández-Sánchez

  2. Instituto de Física, UNAM, Ciudad Universitaria, 04510 D. F., Mexico

    Esbaide Adem

  3. Instituto de Ciencias Nucleares, UNAM, Ciudad Universitaria, 04510 D. F., Mexico

    Guillermina Burillo

Authors
  1. Pedro J. Herrera-Franco
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  2. Fernando Hernández-Sánchez
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  3. Esbaide Adem
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  4. Guillermina Burillo
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Correspondence to Pedro J. Herrera-Franco.

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Herrera-Franco, P., Hernández-Sánchez, F., Adem, E. et al. Dynamic Mechanical Properties of Compatibilized PET with Radiation Oxidized HDPE. Polym. Bull. 56, 47–52 (2006). https://doi.org/10.1007/s00289-005-0461-7

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  • DOI: https://doi.org/10.1007/s00289-005-0461-7

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