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Special Issue “Advances in Thermal and Mechanical Properties of Polymeric Materials”
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Thermomechanical Properties of Polymers and Their Composites with Other Materials: Advances in Thermal and Mechanical Properties of Polymeric Materials (2nd Edition)

Adam Gnatowski
* and
Agnieszka Kijo-Kleczkowska
Faculty of Mechanical Engineering and Computer Science, Czestochowa University of Technology, Dabrowskiego 69, 42-201 Czestochowa, Poland
Authors to whom correspondence should be addressed.
Materials 2024, 17(2), 494;
Submission received: 9 January 2024 / Accepted: 18 January 2024 / Published: 20 January 2024
Progress in the engineering of polymeric materials, including the search for innovative polymer composites with specific properties, has resulted in an expansion of their application areas, especially in the automotive, construction, energy, packaging, and medical industries. The practical use of new polymeric materials requires knowledge of their mechanical, electrical, and thermal properties, as well as recognition of changes in these properties during the operation and destruction of polymers. Due to a growing number of issues related to the processing and recycling of polymeric materials, including waste from energy processes, and concerns about fossil fuel depletion, the use of modern materials in the manufacturing of products is becoming crucial in addressing global environmental pollution.
Observed changes in production technologies, growing demand for manufactured products, the search for modern materials, the pursuit of zero-emission technologies, and the increased energy efficiency of devices, alongside the simultaneous depletion of natural resources, are key elements of sustainable development. In this context, research and testing of new materials are important.
An important aspect of research is the environmental dimension, which includes the combustion/co-combustion of polymers, thermal utilization of polymer waste with energy recovery, and other applications of polymeric materials derived from recycling.
The Special Issue “Advances in Thermal and Mechanical Properties of Polymeric Materials (2nd Edition)” aims to bring together research on material advances, with a focus on the recycling process and technological progress, including modeling and computer simulation of changes in the materials’ properties.
This work aims to encourage authors to publish papers that deal with the thermomechanical properties of polymers and their composites with other materials, taking into consideration both modeling issues and the practical technological aspects. Examples of relevant research areas and topics are presented below.
Currently, technologies play a crucial role in the manufacturing of composites and polymer blends, the recycling processes, methods of utilizing waste heat in the recycling process, and efficient energy recovery systems. Composite materials are replacing metal materials, as they overcome issues such as corrosion, weight, flexibility, and other challenges. In this context, eco-innovative materials are being developed, and research into hybrid composites reinforced with different fibers is ongoing. Hybrid polymers improve the mechanical properties of their original materials such as stretching, impact resistance, and bending [1,2,3,4].
Composites are reinforced with fiber strikethroughs to enhance their thermal properties. Research on the thermal properties of polymer composites is conducted using different methods, including thermogravimetric analysis, differential scanning calorimetry, thermomechanical analysis [5,6,7,8], gas chromatography/mass spectrometry [9], and stereoscopic microscope imaging [10].
Understanding the variability of properties of plastics and composite materials originating from recycling is crucial to facilitating the reintroduction of these materials into handling processes, thereby contributing to the development of a closed-loop economy [11,12,13].
Among all recycling techniques for polymer composites, thermal recycling is best suited for recycling carbon fibers and glass fibers. Through thermal recycling, the properties of materials from recycling can match those of the original materials, and the energy used is significantly lower compared to chemical recycling. Another method of plastic recycling involves the direct recovery of energy through incineration or fuel production [14,15,16,17].
The analysis of experimental data and numerical simulations of combustion/co-combustion processes for plastics and fuels indicates possibilities to optimize and conduct these processes, as well as offering further research directions [18,19].
Technological progress in the field of materials, especially in the processing and recycling of composites, poses significant challenges. Through the study of the properties of modern eco-innovative materials, substantial advancements can be achieved, contributing to the development of solutions that enable the attainment of goals in manufacturing products using material recycling and energy recovery. These tasks can be accomplished through collaboration and the exchange of experiences and knowledge.

Author Contributions

Conceptualization, A.G. and A.K.-K.; writing—original draft preparation, A.G. and A.K.-K.; writing—review and editing, A.G. and A.K.-K. Both authors have read and agreed to the published version of the manuscript.

Conflicts of Interest

The authors declare no conflicts of interest.


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MDPI and ACS Style

Gnatowski, A.; Kijo-Kleczkowska, A. Thermomechanical Properties of Polymers and Their Composites with Other Materials: Advances in Thermal and Mechanical Properties of Polymeric Materials (2nd Edition). Materials 2024, 17, 494.

AMA Style

Gnatowski A, Kijo-Kleczkowska A. Thermomechanical Properties of Polymers and Their Composites with Other Materials: Advances in Thermal and Mechanical Properties of Polymeric Materials (2nd Edition). Materials. 2024; 17(2):494.

Chicago/Turabian Style

Gnatowski, Adam, and Agnieszka Kijo-Kleczkowska. 2024. "Thermomechanical Properties of Polymers and Their Composites with Other Materials: Advances in Thermal and Mechanical Properties of Polymeric Materials (2nd Edition)" Materials 17, no. 2: 494.

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