With the collaboration of Iran Polymer Society
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

Volume 12, Issue 2 , June 2025, , Pages 85-95

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

Polymer processing
Effect of linear low-density polyethylene on the properties of elastomeric materials based on synthetic polyisoprene

Sergey Chernyshov; Lyudmila R. Lyusova; Manizha B. Zharylganova; Lada A. Konyaeva

Volume 11, Issue 4 , December 2024, , Pages 213-218

https://doi.org/10.22063/poj.2024.35524.1291

Abstract
  The work examines the influence of linear low-density polyethylene on the basic technological, physical-mechanical and fatigue properties of elastomeric materials based on synthetic isoprene rubber of the SKI-3 brand. Synthetic polyisoprene rubber of SKI-3 brand manufactured by LLC “Togliattikauchuk” ...  Read More

Polymer processing
Ultra-high molecular weight polypropylene (UHMWPP): Synthesis and fiber processing

Parthiv M. Trivedi; Sandip Patil; Virendra K. Gupta

Volume 11, Issue 1 , February 2024, , Pages 21-28

https://doi.org/10.22063/poj.2023.3455.1274

Abstract
  Ultra-high molecular weight polyolefin (UHMWPO) has enormous potential applications due to their excellent mechanical properties such as tensile strength, flexural modulus, toughness and outstanding chemical resistance. But the processing of polyolefin, in particular, UHMWPO fibers cannot be processed ...  Read More

Polymer processing
Natural rubber/natural rubber reclaim nanocomposites: Role of functional nanoparticles, mixing sequences and coupling agents

Shirin Shokoohi; Ghasem Naderi

Volume 8, Issue 2 , July 2021, , Pages 115-122

https://doi.org/10.22063/poj.2021.2893.1182

Abstract
  Elastomer vulcanizates based on natural rubber (NR), NR reclaim (NRR) and layered silicates were compounded in an internal mixer and cured on a two-roll mill. Cure characteristics and mechanical properties of samples based on 50NR/50NRR reinforced with Cloisite 20A, Cloisite 30B and Nanolin DK1 were ...  Read More

Characterization
LDPE and poly(1-butene) blends: Morphology, crystallinity and rheological properties

Reza Poorghasemi; Yousef Jahani

Volume 8, Issue 1 , January 2021, , Pages 21-30

https://doi.org/10.22063/poj.2020.2759.1164

Abstract
  In this work, the compatibility and crystallinity of low density polyethylene (LDPE) and polybutene-1 (PB-1) blends were studied. Various blends of LDPE/PB-1 containing 5, 10 and 20 wt.% PB-1 were prepared in a corotating twin-screw extruder and characterized by scanning electron microscopy (SEM), shear ...  Read More

Polymer processing
Changes in signal transmission speed in coaxial cables through regulating the foam structure of the polyethylene dielectric section

Milad Moradian; Taher Azdast; Ali Doniavi

Volume 8, Issue 1 , January 2021, , Pages 41-48

https://doi.org/10.22063/poj.2020.2787.1167

Abstract
  Polyolefins have been widely used in the electrical insulation and cable industry in recent years. One of the main usages of these materials is dielectric insulation in coaxial cables. Low attenuation and high signal transmission speed are among the desired features in coaxial cables. The role of polyethylene ...  Read More

Polymer processing
Effect of process parameters on tensile strength of welds and modeling of laser welding of PA6/NBR/clay nanocomposite by response surface methodology

Moammadreza Nakhaei; Ali Ahmadi; Ghasem Naderi

Volume 7, Issue 2 , July 2020, , Pages 99-110

https://doi.org/10.22063/poj.2020.2599.1147

Abstract
  Polyamide 6 / nitrile butadiene rubber / nanoclay (PA6/NBR/clay) nanocomposite has gathered wide acceptance in industry. Laser welding, as a fabrication method, is applied to welding of polymer nanocomposites. In this study, the input parameters (clay (Closite 30B) content, laser power, scan velocity ...  Read More

Polymer processing
Impact, thermal and biodegradation properties of high impact polystyrene/corn starch blends processed via melt extrusion

Ali Mahmoudi Yayshahri; Seyed Jamaleddin Peighambardoust; Abolfazl Shenavar

Volume 6, Issue 2 , June 2019, , Pages 151-158

https://doi.org/10.22063/poj.2019.2390.1130

Abstract
  High impact polystyrene (HIPS)/corn starch blends were prepared in presence of glycerol as a plasticizer via melt extrusion process by a twin-screw extruder. The novelty of this work is first, because of the use of pre-gelatinized corn starch as modified one and second, the procedure of making blends ...  Read More

Polymer processing
The influence of branching efficiency on the rheology and morphology of melt state long chain branched polypropylene/polybutene-1 blends

Ali Foroozan; Tahereh Behboodi; Yousef Jahani

Volume 6, Issue 1 , January 2019, , Pages 1-11

https://doi.org/10.22063/poj.2018.2181.1112

Abstract
  In this study, the compatibility of the blends of polypropylene (PP) and polybutene-1(PB-1) homopolymer before and after long chain branching process were studied. The blends were prepared and long-chain branched directly via reactive extrusion process in presence of free radical initiator and trimethylolpropane ...  Read More

Polymer processing
Electron beam irradiation method to change polypropylene application: Rheology and thermomechanical properties

Fatemeh Hassan; Mehdi Entezam

Volume 6, Issue 1 , January 2019, , Pages 53-61

https://doi.org/10.22063/poj.2018.2257.1118

Abstract
  Irradiation of polymers is one of the most effective and economical methods for modifying their properties and for changing their applications. In this study, an extrusion grade polypropylene (PP) was treated by electron beam irradiation to produce a PP suitable for injection molding. Irradiation was ...  Read More

Polymer processing
Embedding neat and carboxylated nanodiamonds into polypropylene membranes to enhance antifouling properties

Shahab Hoseinpour; Yoones Jafarzadeh; Reza Yegani; Sepideh Masoumi

Volume 6, Issue 1 , January 2019, , Pages 63-74

https://doi.org/10.22063/poj.2018.2264.1120

Abstract
  The aim of the present work is to enhance the antifouling properties of polypropylene (PP) membrane based on hydrophilicity improvement. Different contents of neat and modified nanodiamond (0.25, 0.50, 0.75 and 1.00 wt.%) were embedded into PP membranes. Nanodiamond nanoparticles were carboxylated by ...  Read More

Polymer processing
Inhibition effect of polyvinyl butyral on crystallization of polypropylene

Jun Huang; Guanghua Tian; Huayi Li; Lei Li; Qian Li; He Huang; Shuirong Zheng; Youliang Hu

Volume 5, Issue 2 , June 2018, , Pages 141-151

https://doi.org/10.22063/poj.2018.1979.1106

Abstract
  In this work, a series of polypropylene/polyvinyl butyral (PP/PVB) blends were prepared by melt-blending process, at PVB loadings 3 wt%, 10 wt%, and 30 wt%. The effects of PVB on crystallization behavior of PP were investigated by differential scanning calorimetry (DSC), and polarized optical ...  Read More

Polymer processing
Rheological, thermal and tensile properties of PE/nanoclay nanocomposites and PE/nanoclay nanocomposite cast films

Mehdi Hajiabdolrasouli; Amir Babaei

Volume 5, Issue 1 , January 2018, , Pages 47-58

https://doi.org/10.22063/poj.2017.1500

Abstract
  The effects of three different mixers, two different feeding orders and nanoclay content on the structure development and rheological properties of PE/nanoclay nanocomposite samples were investigated. Fractional Zener and Carreau–Yasuda models were applied to discuss the melt linear viscoelastic ...  Read More

Polymer processing
Theoretical models for prediction of mechanical behaviour of the PP/EPDM nanocomposites fabricated by friction stir process

Amir Mostafapour; Ghasem Naderi; Mohammad Reza Nakhaei

Volume 4, Issue 1 , January 2017, , Pages 99-109

https://doi.org/10.22063/poj.2016.1370

Abstract
  In this study, thermoplastic polyolefin elastomeric (TPO) nanocomposites were fabricated by friction stir processing. The effect of different pin geometries on clay dispersion and mechanical properties of the TPO nanocomposite reinforced with 3% wt nanoclay has been first investigated. The optimum pin ...  Read More

Polymer processing
Oxygen-barrier films based on low-density polyethylene/ ethylene vinyl alcohol/ polyethylene-grafted maleic anhydride compatibilizer

Mohammadreza Rahnama; Abdulrasoul Oromiehie; Shervin Ahmadi; Ismaeil Ghasemi

Volume 4, Issue 1 , January 2017, , Pages 137-147

https://doi.org/10.22063/poj.2016.1398

Abstract
  In this research, high oxygen-barrier films were organized based on low-density polyethylene (LDPE)/ ethylene vinyl alcohol (EVOH)/ polyethylene-grafted maleic anhydride (LDPE-g-MA) compatibilizer. The effects of 10–30 wt. % EVOH and 0–10 wt. % LDPE-g-MA loadings on the properties of final ...  Read More