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Polymers
Special Issues
Physicochemical Properties of Polymer Composites
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Physicochemical Properties of Polymer Composites

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

Deadline for manuscript submissions: 30 December 2024 | Viewed by 2463

Special Issue Editor

Dr. Andreea Groza

E-Mail Website1 Website2
Guest Editor
Low Temperature Plasma Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, P.O. Box MG 36, Magurele, 077125 Bucharest, Romania
Interests: plasma deposition methods; spectral characterization of deposition plasma; thin films for biomedical applications; biopolymers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polymers are seeing more and more applications in everyday life. In particular, the incorporation of polymers into coatings in various percentages, or the use of polymers as matrices for embedding other compounds, contributes to the improvement of material mechanical characteristics. The adding of polymeric films onto material surfaces can lead to their functionalization and the improvement of some targeted properties. The relationship between the wettability, mechanical or corrosion resistance, elasticity, and hardness of layers and chemical as well as physical properties depends on the synthesis method. By combining the chemical synthesis method with laser or plasma deposition techniques, polymer composites with high-performance dedicated properties can be produced.

The present Special Issue aims to highlight the current advances in the incorporation/addition of polymers to various type of materials/coatings via innovative techniques for biomedical and technological applications.

Original research or review articles related to the following topics are welcome:

  • Polymer composites.
  • Material surface functionalization with polymer layers.
  • Chemical/laser/plasma deposition or surface treatment methods.
  • Novel characterization methods of the mechanical and physicochemical properties of polymer composites.
  • Simulation of the processes encountered during the interactions of polymers with composite compounds.

Dr. Andreea Groza
Guest Editor

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.

Keywords

  • polymer composites
  • polymer composite layers
  • chemical/laser/plasma deposition/surface treatment methods

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Published Papers (3 papers)

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Research

16 pages, 2836 KiB  
Article
Does the Addition of Low-Dose Antibiotics Compromise the Mechanical Properties of Polymethylmethacrylate (PMMA)?
by Valentina Egger, Dietmar Dammerer, Gerald Degenhart, Johannes D. Pallua, Werner Schmölz, Martin Thaler, Klaus-Dieter Kühn, Michael Nogler and David Putzer
Polymers 2024, 16(16), 2378; https://doi.org/10.3390/polym16162378 - 22 Aug 2024
Viewed by 386
Abstract
The increasing numbers of total joint replacements and related implant-associated infections demand solutions, which can provide a high-dose local delivery of antibiotics. Antibiotic-loaded bone cement (ALBC) is an accepted treatment method for infected joint arthroplasties. The mechanical properties of low-dose gentamicin-loaded bone cement [...] Read more.
The increasing numbers of total joint replacements and related implant-associated infections demand solutions, which can provide a high-dose local delivery of antibiotics. Antibiotic-loaded bone cement (ALBC) is an accepted treatment method for infected joint arthroplasties. The mechanical properties of low-dose gentamicin-loaded bone cement (BC) in medium- and high-viscosity versions were compared to unloaded BC using a vacuum mixing system. As an additional control group, manual mixed unloaded BC was used. In a uniaxial compression test, ultimate compressive strength, compressive yield strength, and compression modulus of elasticity, as well as ultimate and yield strain, were determined according to ISO 5833-2022 guidelines. All groups exceeded the minimum compressive strength (70 MPa) specified in the ISO 5833 guidelines. Both ALBC groups showed a similar ultimate compressive and yield strength to the unloaded BC. The results showed that vacuum mixing increased the compression strength of BC. ALBC showed similar compressive strength to their non-antibiotic counterparts when vacuum mixing was performed. Added low-dose gentamicin acted as a plasticizer on bone cement. From a biomechanical point of view, the usage of gentamicin-based ALBC formulations is viable. Full article
(This article belongs to the Special Issue Physicochemical Properties of Polymer Composites)
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19 pages, 11045 KiB  
Article
Impact of Different Mineral Reinforcements on HDPE Composites: Effects of Melt Flow Index and Particle Size on Physical and Mechanical Properties
by Pedro Henrique Poubel Mendonça da Silveira, Marceli do Nascimento da Conceição, Davi Nascimento de Pina, Pedro Afonso de Moraes Paes, Sergio Neves Monteiro, Neyda de La Caridad Om Tapanes, Roberto Carlos da Conceição Ribeiro and Daniele Cruz Bastos
Polymers 2024, 16(14), 2063; https://doi.org/10.3390/polym16142063 - 19 Jul 2024
Cited by 1 | Viewed by 644
Abstract
The use of mineral reinforcements in polymer matrix composites has emerged as an alternative for sustainable production, reducing waste and enhancing the physical and mechanical properties of these materials. This study investigated the impact of the melt flow index (MFI) of HDPE and [...] Read more.
The use of mineral reinforcements in polymer matrix composites has emerged as an alternative for sustainable production, reducing waste and enhancing the physical and mechanical properties of these materials. This study investigated the impact of the melt flow index (MFI) of HDPE and the particle size of two mineral reinforcements, Bahia Beige (BB) and Rio Grande do Norte Limestone (CRN), on the composites. All composites were processed via extrusion, followed by injection, with the addition of 30 wt.% reinforcement. Chemical analyses revealed similar compositions with high CaO content for both minerals, while X-ray diffraction (XRD) identified predominantly calcite, dolomite, and quartz phases. Variations in the MFI, reinforcement type, and particle size showed a minimal influence on composite properties, supported by robust statistical analyses that found no significant differences between groups. Morphological analysis indicated that composites with lower MFI exhibited less porous structures, whereas larger particles of BB and CRN formed clusters, affecting impact resistance, which was attributed to poor interfacial adhesion. Full article
(This article belongs to the Special Issue Physicochemical Properties of Polymer Composites)
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17 pages, 11557 KiB  
Article
Spectral Analysis of Strontium-Doped Calcium Phosphate/Chitosan Composite Films
by Maria Elena Zarif, Bogdan Bita, Sasa Alexandra Yehia-Alexe, Irina Negut and Andreea Groza
Polymers 2023, 15(21), 4245; https://doi.org/10.3390/polym15214245 - 28 Oct 2023
Cited by 2 | Viewed by 1030
Abstract
Strontium-doped calcium phosphate/chitosan films were synthetized on silicon substrates using the radio-frequency magnetron sputtering technique and the matrix-assisted pulsed laser evaporation technique. The deposition conditions associated with the radio-frequency magnetron sputtering discharge, in particular, include the high temperature at the substrate, which promotes [...] Read more.
Strontium-doped calcium phosphate/chitosan films were synthetized on silicon substrates using the radio-frequency magnetron sputtering technique and the matrix-assisted pulsed laser evaporation technique. The deposition conditions associated with the radio-frequency magnetron sputtering discharge, in particular, include the high temperature at the substrate, which promotes the formation of strontium-doped tetra calcium phosphate layers. The physical and chemical processes associated with the deposition of chitosan on strontium-doped calcium phosphate layers were investigated using Fourier Transform Infrared Spectroscopy, Energy Dispersive X-ray Spectroscopy, and Scanning Electron Microscopy. Mass spectrometry coupled with laser induced ablation of the composite films proved to be a useful tool in the detection of the molecular ions characteristic to chitosan chemical structure. Full article
(This article belongs to the Special Issue Physicochemical Properties of Polymer Composites)
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