Mechanical properties of polypropylene (PP) plus high-density polyethylene (HDPE) binary blends: Non-isothermal degradation kinetics of PP+HDPE (80/20) Blends


ŞİRİN K., DOĞAN F. , Canli M., Yavuz M.

POLYMERS FOR ADVANCED TECHNOLOGIES, cilt.24, ss.715-722, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 24 Konu: 8
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1002/pat.3135
  • Dergi Adı: POLYMERS FOR ADVANCED TECHNOLOGIES
  • Sayfa Sayıları: ss.715-722

Özet

In this study, the mechanical properties and non-isothermal degradation kinetics of polypropylene (PP), high-density polyethylene (HDPE) with dilauroyl peroxide and their blends in different mixture ratios were investigated. The effects of adding dilauroyl peroxide (0-0.20 wt%) on the mechanical and thermal properties of PP + HDPE blends have been studied. On the other hand, the kinetics of the thermal degradation and thermal oxidative degradation of PP + HDPE (80/ 20 wt%) blends were studied in different atmospheres, to analyze their thermal stability. The kinetic and thermodynamic parameters such as the activation energy, Ea, the pre-exponential factor, A, the reaction order, n, the entropy change, the enthalpy change, and the free energies of activated complex related to PP, HDPE, and blend systems were calculated by means of the several methods on the basis of the single heating rate. A computer program was developed for automatically processing the data to estimate the reaction parameters by using different models. Most appropriate method was determined for each decomposition step according to the least-squares linear regression. Copyright (c) 2013 John Wiley & Sons, Ltd.