E-Mail Alert

Add your e-mail address to receive forthcoming issues of this journal:

Journal Browser

Journal Browser

Special Issue "New Trends in Polymeric Foams"

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: 15 October 2018

Special Issue Editors

Guest Editor
Prof. Miguel Angel Rodríguez-Pérez

Cellular Materials Laboratory (CellMat Laboratory), Condensed Matter Physics Department, University of Valladolid, 47011 Valladolid, Spain
Website | E-Mail
Interests: cellular polymers; nanocellular polymers; cellular nanocomposites; biocellular polymers; polyurethane foams
Guest Editor
Dr. Ester Laguna-Gutierrez

Cellular Materials Laboratory (CellMat Laboratory), Condensed Matter Physics Department, University of Valladolid, Valladolid, Spain
Website | E-Mail
Interests: rheology; nanocellular polymers; nanocomposite foams; foaming mechanisms

Special Issue Information

Dear Colleagues,

The journal “Materials” is preparing a Special Issue titled “New Trends in Polymeric Foams”. In this Special Issue, recent research on advanced polymeric foams is considered.

Polymeric foams—also known as cellular polymers—are materials of great interest that can be found everywhere in our present world. Their particular structure gives them unique properties that allow a broadening of the range of properties of their solid counterparts. The applications of these foamed materials are thus very extensive. They are of special interest in sectors like construction, automotive, aeronautics, packaging and protection, biotechnology, energy management, etc. Currently, more than 10% of the polymers produced around the world are used to produce polymeric foams.

The needs of today’s society, in which both reducing the energy consumption and the amount of raw materials and using environmentally-friendly technologies are a must, make necessary the development of advanced foaming technologies and cellular materials with improved properties. In this way, current polymer foams could be substituted by materials with improved performance, the applications of traditional foamed polymers could be extended, and finally, solid plastics could be replaced by foamed ones.

In the last few years, special importance has been given to reducing the cell size up to the nanometre range, giving rise to nanocellular polymers, to understand the complex mechanisms underlying the formation of cellular materials, to develop improved foaming technologies, and to obtain improved properties by tuning the formulations used to produce these materials.

Research on nanocellular polymers has increased significantly due to their potential properties. These novel materials could have better mechanical properties than conventional foams, thermal conductivities well below those presented by current insulation materials, they can be transparent, and they have enhanced dielectric properties. As a consequence, the door is opened to a significant number of new applications, such as super thermal insulation, filtering, sensing, catalysis, etc.

On the other hand, understanding the mechanisms taking place during the foaming process is a factor of major importance in establishing a relationship between cellular structure, properties, and applications. The use of conventional and non-conventional experimental techniques to analyse the foamability of different complex polymeric formulations can be helpful to design new materials with advanced properties. Thermal and rheological techniques, visualization techniques to evaluate nucleation and growth during injection moulding, in-situ rheological measurements during extrusion, X-ray radioscopy and tomography, among others, are examples of these non-conventional techniques.

In addition, the development and/or the improvement of the technologies to produce cellular polymers and the development of improved formulations are hot topics in the field, being in many cases the results of this research of direct application in the industry.

This Special Issue considers recent research on advanced polymeric foams. Of special interest are the research topics focused on developing new formulations and technologies to produce improved cellular materials, as well as those related to the analysis of the foaming mechanisms by using different conventional and non-conventional experimental techniques.

Research in these particular fields is required which considers the needs of today’s society, including the reduction of energy consumption and the amount of raw materials as well as the development of environmentally-friendly technologies.

It is our pleasure to invite you to submit a manuscript for this Special Issue.

Prof. Miguel Angel Rodríguez-Pérez
Dr. Ester Laguna-Gutierrez
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 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 monthly 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 1600 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

  • Nanocellular foams
  • Foaming mechanisms
  • Structure–properties relationship
  • Advanced polymeric foams

Published Papers (1 paper)

View options order results:
result details:
Displaying articles 1-1
Export citation of selected articles as:

Research

Open AccessArticle Thermoelectric Nanocomposite Foams Using Non-Conducting Polymers with Hybrid 1D and 2D Nanofillers
Materials 2018, 11(9), 1757; https://doi.org/10.3390/ma11091757
Received: 23 August 2018 / Revised: 7 September 2018 / Accepted: 11 September 2018 / Published: 18 September 2018
PDF Full-text (2525 KB) | HTML Full-text | XML Full-text
Abstract
A facile processing strategy to fabricate thermoelectric (TE) polymer nanocomposite foams with non-conducting polymers is reported in this study. Multilayered networks of graphene nanoplatelets (GnPs) and multi-walled carbon nanotubes (MWCNTs) are deposited on macroporous polyvinylidene fluoride (PVDF) foam templates using a layer-by-layer (LBL)
[...] Read more.
A facile processing strategy to fabricate thermoelectric (TE) polymer nanocomposite foams with non-conducting polymers is reported in this study. Multilayered networks of graphene nanoplatelets (GnPs) and multi-walled carbon nanotubes (MWCNTs) are deposited on macroporous polyvinylidene fluoride (PVDF) foam templates using a layer-by-layer (LBL) assembly technique. The open cellular structures of foam templates provide a platform to form segregated 3D networks consisting of one-dimensional (1D) and/or two-dimensional (2D) carbon nanoparticles. Hybrid nanostructures of GnP and MWCNT networks synergistically enhance the material system’s electrical conductivity. Furthermore, the polymer foam substrates possess high porosity to provide ultra-low thermal conductivity without compromising the electrical conductivity of the TE nanocomposites. With an extremely low GnP loading (i.e., ~1.5 vol.%), the macroporous PVDF nanocomposites exhibit a thermoelectric figure-of-merit of ~10−3. To the best of our knowledge, this ZT value is the highest value reported for organic TE materials using non-conducting polymers and MWCNT/GnP nanofillers. The proposed technique represents an industrially viable approach to fabricate organic TE materials with enhanced energy conversion efficiencies. The current study demonstrates the potential to develop light-weight, low-cost, and flexible TE materials for green energy generation. Full article
(This article belongs to the Special Issue New Trends in Polymeric Foams)
Figures

Figure 1

Back to Top