With the collaboration of Iran Polymer Society
Polymer physics
Structure and kinetic regulations of PP-R/PPH-g-MAH/Al(OH)3 based nanocomposites crystallization

Fatima Mustafayeva; Najaf Kakhramanov; Khayala Allahverdiyeva

Volume 11, Issue 4 , December 2024, , Pages 243-253

https://doi.org/10.22063/poj.2024.35560.1326

Abstract
  The article presents the results of studies of the influence of aluminum hydroxide concentration on the crystallization process regularities of nanocomposites based on compatibilized polypropylene random copolymer and aluminum hydroxide (PP-R/PPH-g-MAH/Al(OH)3). The isothermal crystallization kinetics ...  Read More

Structure and property relationship
Influence of mold temperature and annealing on the microstructure and mechanical properties of ESO-plasticized PP/CL composites

Buncha Suksut; Pathamanat Poonkasem; Sirirat Prasittinawa; Patcharapon Somdee

Volume 11, Issue 4 , December 2024, , Pages 265-275

https://doi.org/10.22063/poj.2024.35569.1330

Abstract
  Composites of polypropylene (PP) and calcium lactate (CL) with a constant weight percentage of 60% and 40%, respectively, were compounded with 3, 5 and 7 phr of epoxidized soybean oil (ESO) plasticizer using an internal mixer. The testing samples were prepared using an injection molding technique. The ...  Read More

Characterization
Experiments and analysis of stress-induced stiffening of a polypropylene

Ahmed Hamdi

Volume 11, Issue 3 , August 2024, , Pages 149-154

https://doi.org/10.22063/poj.2024.3622.1308

Abstract
  Describing the solidification process is very important in polymer processing. In polypropylene (PP), the increase of viscosity, named stiffening or hardening, is determined by a rise in crystallinity. When PP flows in a channel or is stretched on a chill roll, the stress induces an anticipated crystallization ...  Read More

Simulation & Modeling
Molecular dynamics simulation for polyethylene crystallization: Effect of long chain branches

Jieqi Wang; Li Zhao; Minju Song; Fenge Hu; Xuelian He

Volume 8, Issue 2 , July 2021, , Pages 73-84

https://doi.org/10.22063/poj.2021.2834.1173

Abstract
  The influence of long branches on crystallization behavior has been studied by means of molecular dynamics simulations. Using two systems: polyethylene (PE) with long branches (LCB-PE) and PE without long branches (linear-PE) with the same molecular weight, we have examined the crystallization behavior ...  Read More

Characterization
An investigation on non-isothermal crystallization behavior and morphology of polyamide 6/ poly(ethylene-co-1-butene)-graft-maleic anhydride/organoclay nanocomposites

Sepideh Gomari; Ismaeil Ghasemi; Mohammad Karrabi; Hamed Azizi

Volume 2, Issue 2 , June 2015, , Pages 99-108

https://doi.org/10.22063/poj.2015.1164

Abstract
  Nanocomposites based on polyamide 6 (PA6) and poly(ethylene-co-1-butene)-graft-maleic anhydride (EB-g- MAH) blends have been prepared via melt mixing. The effect of blend ratio and organoclay concentration on the crystallization and melting behavior of specimens were studied. Three types of commercial ...  Read More