With the collaboration of Iran Polymer Society
Polymeric foams
Optimization of acoustic performance of EPDM-based foams using Taguchi design of experiments: Appropriate content of additives

Mohammad Nourmohammadi; Reza Jahanmardi; Hamid Moeenfard; Gholamhossein Zohuri; Saeed Bazgir

Volume 10, Issue 4 , November 2023, , Pages 211-224

https://doi.org/10.22063/poj.2023.3398.1266

Abstract
  Novel EPDM-based polymer foams were prepared using a combination of nanomaterials, namely nano silica, nano clay, and graphene nanoplatelets. In order to achieve optimal acoustic performance, the Taguchi design (TD) technique was applied to reduce the number of experiments and optimize the formulation. ...  Read More

Acceleration of thermo-oxidative degradation of high-density polyethylene using oxidized polyethylene

Tannaz Shahsavari-Badvestani; Reza Jahanmardi; Mohammad Iman Tayouri; Mansour Fathi

Volume 10, Issue 3 , August 2023, , Pages 149-157

https://doi.org/10.22063/poj.2023.3288.1246

Abstract
  In the present study, the thermal oxidation behaviour of high-density polyethylene (HDPE) containing each of two types of oxidized polyethylene (OPE), one prepared using 500 ppm of iron (III) stearate as pro-oxidant and the other without the pro-oxidant, was investigated. Fourier-transform infrared spectroscopy ...  Read More

Polyolefin degradation
Evaluation of effects of thymolphthalein on thermooxidative stability of polypropylene

Nikoo Karami; Reza Jahanmardi

Volume 4, Issue 1 , January 2017, , Pages 79-86

https://doi.org/10.22063/poj.2016.1394

Abstract
  The present work is aimed to find a new and efficient type of antioxidants for polypropylene. Hence, effects of 3,3-bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one, generally known as thymolphthalein, on thermo-oxidative stability of polypropylene in solid and melt states were evaluated ...  Read More