Special Issue "Structure–Physical Properties Relationship of Polymer and its Composites"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: 31 October 2020.

Special Issue Editor

Prof. Dr. Tomasz Sterzynski
Website
Guest Editor
Poznan University of Technology, Institute of Materials Technology, Polymer Division, PL 60-965 Poznan, Poland
Interests: polymer physics and processing; molten polymers rheology; crystall structure of polymers; structure modification; composites and nanocomposites with nano-organic and -electrical additives; all polymers composites; physical properties of polymers and polymeric composites; macromolecular orientation; mechanical and electrical properties

Special Issue Information

Dear Colleagues,

On behalf of the Journal Materials, we would like to invite you to publish a paper at the Special Issue entitled “Structure–Physical Properties Relationship of Polymer and its Composites”.

The physical properties of polymers and their composites may considerably be modified by structure formation during processing in a molten state, composition changes of composites, addition of modifying agents, influenced by various physical fields, deformation in a molten and/or solid state, as well as by post-processing. The characterization of polymeric structure modified by physical fields, heterogeneous nucleation, etc. and its impact on physical properties by amorphous and semi-crystalline polymers, polymeric composites, as well as polymeric blends should present the main topic of the papers.

The specific structure of polymers and polymeric composites formed by cooling from the molten state, which is a result of post-processing deformation and influenced by magnetic, electric, and radiation physical fields in a solid state, is an interesting study subject, also from a scientific point of view, supporting a choice by various application cases. Thus, the determination of the crystalline and/or amorphous structure by means of investigation techniques, reaching from the elementary unit level to optical macroscopic observation, should support the analysis of effects on physical properties of polymers and polymeric composites. The dynamic and static mechanical properties and electrical, thermal, optical, and tribological investigations are commonly used to describe the comprehensive properties of any polymeric products as a result of former modification, also delivering information on possible specific applications. Further, the influence of multiple processing, like recycling, presents a significant factor through structure/re-processing-dependent description of resultant properties.

An important part of contemporary polymer studies is the investigation of partly and/or totally biodegradable polymers and their composites. New and modified techniques of physical properties determination are being used today, allowing better and more precise characterization of these materials.

In this Special Issue, we invite papers related to structure description, referring to polymeric products’ physical properties and their application.  

The topics of interest include but are not limited to:

  • Determination of physical properties of polymers and its composites, new techniques and new achievements;
  • Structure–properties relationship by polymers and their composites;
  • Influence of electro- and magnetocrystallization on properties;
  • Modification of properties of crystalline polymers by processing and post-processing, with resulting physical properties;
  • Influence of mechanical deformation, heat treatment and aging on structure–properties and anisotropy;
  • Mechanical, thermal, and electrical properties as a result of isotropic/anisotropic deformation in molten and solid state;
  • Creation of defined properties of polymeric products by specific modifications;
  • Influence of organic–non-organic additives on properties of polymer composites, application indications.

Prof. Dr. Tomasz Sterzynski
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 papers will be 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. Materials 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 2000 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 crystalline structure
  • polymeric composites
  • structure modification
  • mechanical properties
  • electrical properties
  • thermal properties
  • methods and techniques

Published Papers (2 papers)

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Research

Open AccessArticle
Preparation and Thermal Properties of Modified Cu2O/Polypropylene (PP) Composite
Materials 2020, 13(2), 309; https://doi.org/10.3390/ma13020309 - 09 Jan 2020
Abstract
A uniform, monodispersed superfine cuprous oxide (Cu2O) sphere with a mean diameter of 850 nm has been synthesized by solution reduction. The study reported the synthesis and thermal properties of Cu2O/PP composites for the first time. The surface modification [...] Read more.
A uniform, monodispersed superfine cuprous oxide (Cu2O) sphere with a mean diameter of 850 nm has been synthesized by solution reduction. The study reported the synthesis and thermal properties of Cu2O/PP composites for the first time. The surface modification of the superfine Cu2O sphere was carried out by using a silane coupling agent KH-570. Fourier-transform infrared (FTIR) spectroscopy and the thermogravimetric analysis (TGA) curve revealed that the Cu2O had been successfully modified by silane coupling agent KH570. The scanning electron microscope (SEM) shows that the modified Cu2O can be uniformly dispersed in the polypropylene (PP) matrix, because through surface modification, there are some active functional groups on its surface, such as the ester group, which improves its compatibility with the PP matrix. The thermal stability of Cu2O/PP composites was improved by adding a small amount of Cu2O (1 wt % of PP). Therefore, based on the potential bacteriostasis of cuprous oxide, the low cost of PP and the results of this study, it is predicted that Cu2O/PP composites can be used in infant preparation (such as milk bottles) with low cost and good thermal stability in the near future. Full article
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Open AccessArticle
Effect of Thermal Conductive Fillers on the Flame Retardancy, Thermal Conductivity, and Thermal Behavior of Flame-Retardant and Thermal Conductive Polyamide 6
Materials 2019, 12(24), 4114; https://doi.org/10.3390/ma12244114 - 09 Dec 2019
Abstract
In this work, polyamide 6 (PA6) composites with improved flame retardancy and thermal conductivity were prepared with different thermal conductive fillers (TC fillers) such as aluminum nitride (AlN) and boron nitride (BN) in a PA6 matrix with aluminum diethylphosphinate (AlPi) as a fire [...] Read more.
In this work, polyamide 6 (PA6) composites with improved flame retardancy and thermal conductivity were prepared with different thermal conductive fillers (TC fillers) such as aluminum nitride (AlN) and boron nitride (BN) in a PA6 matrix with aluminum diethylphosphinate (AlPi) as a fire retardant. The resultant halogen-free flame retardant (HFFR) and thermal conductive (TC) PA6 (HFFR-TC-PA6) were investigated in detail with a mechanical property test, a limiting oxygen index (LOI), the vertical burning test (UL-94), a cone calorimeter, a thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). The morphology of the impact fracture surface and char residue of the composites were analyzed by scanning electron microscopy (SEM). It was found that the thermal conductivity of the HFFR-TC-PA6 composite increased with the amount of TC fillers. The TC fillers exerted a positive effect for flame retardant PA6. For example, the HFFR-TC-PA6 composites with the thickness of 1.6 mm successfully passed the UL-94 V-0 rating with an LOI of more than 29% when the loading amount of AlN-550RFS, BN-SW08 and BN-NW04 was 30 wt%. The morphological structures of the char residues revealed that TC fillers formed a highly integrated char layer surface (without holes) during the combustion process, as compared to that of flame retardant PA6/AlPi composites. In addition, the thermal stability and crystallization behavior of the composites were studied. Full article
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