With the collaboration of Iran Polymer Society
Polyolefin recycling
Synergistic effects of metal stearate, calcium carbonate, and recycled polyethylene on thermo-mechanical behavior of polyvinylchloride

Samira Maou; Yazid Meftah; Ahmed Meghezzi

Volume 10, Issue 1 , January 2023, Pages 1-11

https://doi.org/10.22063/poj.2022.3153.1223

Abstract
  Thermo-mechanical recycling process is the cheapest way to recover plastic waste such as LDPE with low ecological impact. Thus, the goal of this work is to obtain high-performance microcomposites from polyvinyl chloride (PVC), recycled low-density polyethylene (r-LDPE), calcium carbonate (CaCO3), and ...  Read More

Polyolefin blends
Effect of replacing EPDM with high molecular weight amorphous poly(1-hexene) on the mechanical behavior of iPP/iPP-g-MA/EPDM blends

Mahsa Mobini-Dehkordi; Gholam-Reza Nejabat; Mohammad-Mahdi Mortazavi

Volume 10, Issue 1 , January 2023, Pages 13-20

https://doi.org/10.22063/poj.2022.2967.1193

Abstract
  Varying amounts of a high molecular weight poly(1-hexene) (PH, Mv=1.7×106 Da) are substituted for EPDM in an iPP/iPP-g-MA/EPDM blend (weight ratio: 76:4:20) and mechanical properties as well as phase morphology of the blends are studied and compared. The results show that by substituting the entire ...  Read More

Rheology
Controlling the rheological behavior of nucleated polypropylene via incorporating dimethylbenzylidene sorbitol (DMDBS) masterbatch

Maryam Shokrollahi; Bahereh T. Marouf; Reza Bagheri

Volume 10, Issue 1 , January 2023, Pages 21-26

https://doi.org/10.22063/poj.2022.3189.1226

Abstract
  Dimethylbenzylidene sorbitol (DMDBS) is a common nucleating/clarifier agent used in polypropylene (PP). So many researchers have looked at different aspects of incorporating this additive on crystallization behavior of PP. The current study has focused on a rather new subject and that is the role of ...  Read More

Composites and nanocomposites
Removal of methylene blue dye from aqueous solutions by a new wood/plastic composite based on HDPE and wood particles

Zahra Ranjbarha; Javad Mokhtari-Aliabad; Parviz Aberoomand-Azar; Seyed Amin Mirmohammadi; Mohammad Saber-Tehrani

Volume 10, Issue 1 , January 2023, Pages 27-33

https://doi.org/10.22063/poj.2022.3197.1227

Abstract
  In the present work, the ability of wood-plastic composite containing high density polyethylene and wood powder as a recycled material to remove methylene blue cation pigment was studied. The effect of some important parameters such as pH, adsorbent amount and contact time was investigated. Adsorption ...  Read More

Catalysis
Substituent effect of Cp2TiCl2 catalyst for ethylene polymerization: A DFT study

Kefeng Xie; Wei Hao; Shengyuan Xu; Jie Wang; Xiong Wang; Zhengang Han

Volume 10, Issue 1 , January 2023, Pages 35-43

https://doi.org/10.22063/poj.2022.3234.1235

Abstract
  The substituents on cyclopentadienyl (Cp) can regulate the electronic effect and hindrance of the active center in the metallocene catalyst. This modification can greatly change the catalytic activity of the catalyst and affect some features of the polymer. In order to study the effect of alkyl substituents ...  Read More

Composites and nanocomposites
Polyvinylpyrrolidone and polystyrene composites based on economical high quality biofillers derived from rice husk: Spectroscopic and hydrophilic investigations

Hamed NazarpourFard

Volume 10, Issue 1 , January 2023, Pages 45-57

https://doi.org/10.22063/poj.2022.3221.1232

Abstract
  Polyvinylpyrrolidone (PVP) composites based on rice husk (RH), rice husk carbon (RHC, i.e., black rice husk ash (BRHA)) and rice husk ash (RHA, i.e., white rice husk ash (WRHA)) were prepared separately through solution casting method. Similar composites were made using polystyrene (PS) through the same ...  Read More