With the collaboration of Iran Polymer Society

Computational fluid dynamics study of polyethylene/ ethylene vinyl acetate blend morphology development in a spinneret by volume of fluid method

Parisa Mohammadzadeh Pakdel; Reza Yegani; Mahdi Salami Hosseini; Elham Shokri

Articles in Press, Accepted Manuscript, Available Online from 06 March 2025

https://doi.org/10.22063/poj.2025.35626.1344

Abstract
  In the current study, the flow field and morphology development of a polyethylene (PE) and ethylene vinyl acetate (EVA) blend were investigated numerically during extrusion through a spinneret using Fluent 6.3.26 software. The interface of the two phases was tracked using the volume of fluid (VOF) method. ...  Read More

Polymer processing
Design, development and tested extrusion system for privacy LDPE tapes used in mesh fences

Luisiana Morales-Zamudio; Francisco Rodriguez-Gonzalez; Minerva A.M Zamudio; Tomas Lozano; Juan Guillermo Martinez-Colunga; Saul Sanchez-Valdes; Luciano Da Silva; Erika Lopez-Martinez; Sergio Flores-Gallardo

Articles in Press, Accepted Manuscript, Available Online from 15 March 2025

https://doi.org/10.22063/poj.2025.35586.1338

Abstract
  In this research we provide a practical guide to achieve the successful extrusion of LDPE tapes commercially used in mesh fences, with controlled dimensions, good mechanical properties and weather resistance. Here we share: 1) The die design dimensions and its specialized slotted manufacture to get the ...  Read More

Composites and nanocomposites
High-density polyethylene composites with treated perlite: Thermal and mechanical properties

Linda Gouissem

Articles in Press, Accepted Manuscript, Available Online from 08 April 2025

https://doi.org/10.22063/poj.2025.35648.1346

Abstract
  This study explores the development of high-density polyethylene (HDPE) composites reinforced with stearic acid-treated expanded perlite (TEP) to examine their thermal, mechanical, and processing properties. The composites were fabricated using a plastograph at 200°C, incorporating perlite concentrations ...  Read More

Characterization
An advanced approach to predicting optimal material compositions for graphene/carbon black reinforced polypropylene/polyvinyl chloride nanocomposites focusing mechanical and economic performance

Utkarsh A. Patil; Pravin Ramchandra Kubade

Articles in Press, Accepted Manuscript, Available Online from 26 April 2025

https://doi.org/10.22063/poj.2025.35662.1348

Abstract
  This study explores the development of high-density polyethylene (HDPE) composites reinforced with stearic acid-treated expanded perlite (TEP) to examine their thermal, mechanical, and processing properties. The composites were fabricated using a plastograph at 200°C, incorporating perlite concentrations ...  Read More

Polyolefins Functionalization
Modification of low-molecular-weight polyethylene through grafted copolymerization with methyl acrylate

Valentin Olegovich Kudyshkin; Nurad Ismatovich Bozorov; Ruslan Khaitkulovich Madiev; Bektemir Khamidovich Ruziev; Nurbek Shodievich Ashurov; Sayera Sharafovna Rashidova

Articles in Press, Accepted Manuscript, Available Online from 27 April 2025

https://doi.org/10.22063/poj.2025.35623.1343

Abstract
  Copolymers of methyl acrylate were grafted onto low-molecular-weight polyethylene in the presence of benzoyl peroxide in o-xylene. The formation of these copolymers was confirmed by functional analysis of the ether groups and Fourier-transform infrared spectroscopy. Various synthesis patterns were demonstrated, ...  Read More

Olefin polymerization and copolymerization
Tuning polymerization performance in ethylene–propylene copolymerization using a constrained geometry titanium catalyst [t-BuNSiMe2(Me4Cp)]TiMe2: Insights from random and block copolymerization studies

Fengtao Li; Jing Wang; Xuelian He

Articles in Press, Accepted Manuscript, Available Online from 03 June 2025

https://doi.org/10.22063/poj.2025.35685.1357

Abstract
  In this study, a titanium-based cons trained geometry catalyst, [t-BuNSiMe2(Me4Cp)]TiMe2, was synthesized and activated with methylaluminoxane for ethylene-propylene random and block copolymerization. The catalyst exhibited optimal activity at 70°C, yielding random copolymer chains with trace amounts ...  Read More