Polymeric Porous Materials: Synthesis, Characterization and Application

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

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 1526

Special Issue Editor


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Guest Editor
Polymer Laboratory, Latvian State Institute of Wood Chemistry, 27 Dzerbenes St., LV-1006 Riga, Latvia
Interests: polyurethane chemistry and technology; renewable raw materials; thermal insulation; cryogenic insulation; space technologies
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Special Issue Information

Dear Colleagues,

Over the last six months, Europe, as well as the rest of the world, has been shaken, politically, militarily, economically and ecologically, by unprecedented events. The conflict between Russia and Ukraine has dramatically changed the entire hydrocarbon market, as demonstrated by the direct effect of the current oil and gas prices on the polymer industry. Therefore, now, more than ever, the use of renewable and recyclable resources is important in order to become increasingly independent of the unpredictable oil market, as well as for the quality of life of future generations. European policy initiatives, as well as the rest of the world’s economy, are moving towards carbon neutrality.

Porous materials can contribute to a greener planet. These are the renewable resources used in the synthesis and production of traditional polymer materials, and have rapidly developed as non-isocyanate polyurethane technologies over the last decade; foam plastics as a thermal insulation material can effectively save heat, thus preventing expensive hydrocarbons from being wasted. Hydrogen is one of the main energy carriers in the future economy, and porous materials can be used as a hydrogen storage medium or cryogenic insulation for liquefied hydrogen.

Porous material structure research, as well as modeling and theoretical calculations, is highly important, and even fundamental, science to help manufacturers and end users move forward.

The purpose of this Special Issue is to bring together polymer scientists working with porous or foamed materials in order to reflect the current situation, not only in scientific laboratories, but also to update the requirements and settings of the industry. Authors are welcome to submit their latest results in the form of original full articles, communications, or reviews on this broad topic.

Dr. Uģis Cābulis
Guest Editor

Manuscript Submission Information

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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

  • cellular, lightweight materials
  • renewable and recyclable resources
  • thermal and cryogenic insulation
  • foaming process and morphology
  • materials for hydrogen storage
  • life cycle assessment and biodegradability
  • ecological footprint and ecotoxicity

Published Papers (1 paper)

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Research

24 pages, 2307 KiB  
Article
Anisotropy and Mechanical Properties of Nanoclay Filled, Medium-Density Rigid Polyurethane Foams Produced in a Sealed Mold, from Renewable Resources
by Ilze Beverte, Ugis Cabulis, Janis Andersons, Mikelis Kirpluks, Vilis Skruls and Peteris Cabulis
Polymers 2023, 15(11), 2582; https://doi.org/10.3390/polym15112582 - 5 Jun 2023
Cited by 3 | Viewed by 1324
Abstract
Medium-density rigid polyurethane (PU) foams are often produced in sealed molds; therefore, the processes inside the mold and structure of the produced foam blocks need to be understood. The structural and mechanical anisotropy is shown to be the third variable along with (1) [...] Read more.
Medium-density rigid polyurethane (PU) foams are often produced in sealed molds; therefore, the processes inside the mold and structure of the produced foam blocks need to be understood. The structural and mechanical anisotropy is shown to be the third variable along with (1) concentration of the nanoclay filler and (2) density, to determine the mechanical properties of the filled PU foam composites produced in a sealed mold. The varying anisotropy of the specimens hinders the accurate evaluation of the filling effect. The methodology for the estimation of the anisotropy characteristics of specimens from different locations within the nanoclay filled PU foam blocks is elaborated. A criterion, based on analysis of Poisson’s ratios, is formulated for the selection of specimens with similar anisotropy characteristics. The shear and bulk moduli are estimated theoretically, dependent on the filler’s concentration, using the experimentally determined constants. Full article
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