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Polymers
Special Issues
Rheology and Processing of Polymer-Based Materials
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Rheology and Processing of Polymer-Based Materials

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Analysis and Characterization".

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 7183

Special Issue Editors

Prof. Dr. Francisco Javier Navarro

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Guest Editor
Departamento de Ingeniería Química, Chemical Process and Product Technology Research Centre (Pro2TecS), Universidad de Huelva, Huelva, Spain
Interests: bitumen; recycled polymers; tire rubber; nanomaterials; phase change emulsions; rheology; DSC
Prof. Dr. Antonio Abad Cuadri

E-Mail Website
Guest Editor
Departamento de Ingeniería Química, Chemical Process and Product Technology Research Centre (Pro2TecS), Universidad de Huelva, Huelva, Spain
Interests: polymer bituminous binders; bitumen emulsions; bituminous mastics; processing polymer modified bitumen conditions; rheological characterization; phase change materials (PCMs); development of hydrogels
Dr. Clara Delgado-Sánchez

E-Mail Website
Guest Editor
Departamento de Ingeniería Química, Chemical Process and Product Technology Research Centre (Pro2TecS), Universidad de Huelva, Huelva, Spain
Interests: tannin-based materials; rigid foams; porous material characterization; non-aqueous emulsions; stability; phase change materials (PCM); rheology
Special Issues, Collections and Topics in MDPI journals
Dr. Francisco J. Martínez-Boza

E-Mail Website
Guest Editor
Departamento de Ingeniería Química, Chemical Process and Product Technology Research Centre (Pro2TecS), Universidad de Huelva, Huelva, Spain
Interests: rheology; high pressure; drilling fluid; bitumen; biopolymer; heat storage
Dr. María José Martín-Alfonso

E-Mail Website
Guest Editor
Departamento de Ingeniería Química, Chemical Process and Product Technology Research Centre (Pro2TecS), Universidad de Huelva, Huelva, Spain
Interests: rheology; high pressure; driling fluid; bitumen; biopolymer; heat storage

Special Issue Information

Dear Colleagues,

Polymeric materials perform an important role in the properties of many advanced products such as suspensions, emulsions, binders, lubricants, etc. These products are frequently structured by macromolecules where the interactions between the long-chain components, particles and interfaces determine in a great extent the thermomechanical and interfacial response of the system. Knowledge of the evolution of the rheological and interfacial properties of these systems over a wide range of temperatures and pressures is essential for selecting suitable processing conditions to obtain products with the desire in-service properties.

This special issue covers original research papers and reviews on the physicochemical and thermomechanical properties of polymer-based structured fluids with new insights into the structure-processing-engineering properties relationship.

Prof. Dr. Francisco Javier Navarro
Prof. Dr. Antonio Abad Cuadri
Dr. Clara Delgado-Sánchez
Dr. Francisco J. Martínez-Boza
Dr. María José Martín-Alfonso
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

 

Published Papers (3 papers)

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Research

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12 pages, 1514 KiB  
Article
Estimation of the Effects of CO2 and Temperature on the Swelling of PS-CO2 Mixtures at Supercritical Conditions on Rheological Testing
by César Miguel Ibarra-Garza, Cecilia D. Treviño-Quintanilla and Jaime Bonilla-Ríos
Polymers 2022, 14(17), 3490; https://doi.org/10.3390/polym14173490 - 26 Aug 2022
Cited by 1 | Viewed by 1577
Abstract
The use of supercritical CO2 as a blowing agent for polymeric foams instead of traditional blowing agents has been a trend in recent years. To achieve the final desired properties of the polymeric foams, the rheological behavior of the material needs to [...] Read more.
The use of supercritical CO2 as a blowing agent for polymeric foams instead of traditional blowing agents has been a trend in recent years. To achieve the final desired properties of the polymeric foams, the rheological behavior of the material needs to be reliable. The polymer swelling in the samples for rheological testing affects the results of the viscoelastic properties of the material. This study proposes a new testing methodology to control the accuracy and repeatability of the rheological characterization for PS-SCO2 samples. To develop this methodology, three polystyrene resins with different molecular weight distribution were studied at three temperatures (170, 185 and 200 °C) and three pressures (0.1 MPa, 6.89 MPa and 13.78 MPa). The CO2 concentration was estimated and used in the Sanchez–Lacombe Equation of State (SLEOS) to determine the polymer swelling, as it affects the dimensions of specimens tested in high-pressure rheometers. The correction factors provided a consistent trend in the viscosity with respect to temperature and a decrease of up to 50% in the standard deviation. The results of this study are crucial for an accurate measurement of viscoelastic properties by parallel-plate rheometry. Full article
(This article belongs to the Special Issue Rheology and Processing of Polymer-Based Materials)
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21 pages, 6780 KiB  
Article
Ageing Effects on a Softened Bitumen by the Addition of DSA (Dodecenyl Succinic Anhydride)
by Francisco José Ortega, Antonio Abad Cuadri, Pedro Partal and Francisco Javier Navarro
Polymers 2022, 14(12), 2437; https://doi.org/10.3390/polym14122437 - 16 Jun 2022
Cited by 1 | Viewed by 1453
Abstract
The softening of aged bitumen is necessary for a successful asphalt rejuvenation in road recycling operations. Thus, this study proposes a novel and successful approach by using Dodecenyl Succinic Anhydride (DSA), a reactive surfactant with a polar head capable of reacting with some [...] Read more.
The softening of aged bitumen is necessary for a successful asphalt rejuvenation in road recycling operations. Thus, this study proposes a novel and successful approach by using Dodecenyl Succinic Anhydride (DSA), a reactive surfactant with a polar head capable of reacting with some polar compounds of bitumen. On this basis, this paper analyses the softening potential and ageing inhibition capability of the addition of 3 wt.% DSA before and after the application of standard laboratory ageing methods (rolling thin film oven, RTFOT and pressure aging vessel (PAV) tests). To that end, different modified bitumens were evaluated by analysing the linear viscoelastic behaviour, viscous flow properties, thin layer chromatography, Fourier transform infrared spectroscopy (FTIR), contact angle measurements and compactibility tests. The results obtained for DSA show its greater potential to soften a model bitumen, when compared to a diluent oil, through physico-chemical processes that bring about a lowering in the polarity along with the alteration of its colloidal stability. Even though ageing processes in bitumen negatively affect its softening capacity, the developed structures still retain the ability to partially compensate for the adverse hardening effects. Furthermore, DSA addition greatly enhances the binder’s wettability on a siliceous-type aggregate and favours asphalt compaction. Full article
(This article belongs to the Special Issue Rheology and Processing of Polymer-Based Materials)
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Review

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38 pages, 14001 KiB  
Review
Recent Advances in the Interfacial Shear and Dilational Rheology of Polymer Systems: From Fundamentals to Applications
by Younes El Omari, Mohamed Yousfi, Jannick Duchet-Rumeau and Abderrahim Maazouz
Polymers 2022, 14(14), 2844; https://doi.org/10.3390/polym14142844 - 13 Jul 2022
Cited by 8 | Viewed by 3228
Abstract
The study of the viscoelastic properties of polymer systems containing huge internal two-dimensional interfacial areas, such as blends, foams and multilayer films, is of growing interest and plays a significant role in a variety of industrial fields. Hence, interfacial rheology can represent a [...] Read more.
The study of the viscoelastic properties of polymer systems containing huge internal two-dimensional interfacial areas, such as blends, foams and multilayer films, is of growing interest and plays a significant role in a variety of industrial fields. Hence, interfacial rheology can represent a powerful tool to directly investigate these complex polymer–polymer interfaces. First, the current review summarizes the theoretical basics and fundamentals of interfacial shear rheology. Particular attention has been devoted to the double-wall ring (DWR), bicone, Du Noüy ring and oscillating needle (ISR) systems. The measurement of surface and interfacial rheological properties requires a consideration of the relative contributions of the surface stress arising from the bulk sub-phases. Here, the experimental procedures and methodologies used to correct the numerical data are described considering the viscoelastic nature of the interface. Second, the interfacial dilational rheology is discussed, starting with the theory and underlying principles. In particular, the Langmuir trough method, the oscillating spinning drop technique and the oscillating pendant drop technique are investigated. The major pioneering studies and latest innovations dedicated to interfacial rheology in both shear and dilatation–compression are highlighted. Finally, the major challenges and limits related to the development of high-temperature interfacial rheology at the molten state are presented. The latter shows great potential for assessing the interfaces of polymer systems encountered in many high-value applications. Full article
(This article belongs to the Special Issue Rheology and Processing of Polymer-Based Materials)
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