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Investigations on Polymer-Based Materials and Structures: Theory, Experimentation and Computation

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1582

Special Issue Editors


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Guest Editor
School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Interests: mechanics of materials; computational mechanics; engineering thermodynamics; heat and mass trasnfer; nanomechanics
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Guest Editor
College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China
Interests: epoxy modification; epoxy resin impregnated superconducting magnets; hts tape; high field magnet; mechanical analysis; multi-physics coupling simulation; multi-scale high-performance computing method
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Guest Editor
School of Civil Engineering and Geomatics, Southwest Petroleum University, 610500 Chengdu, China
Interests: mechanical metamaterials; auxetics; npr; self-locking energy absorption system; cyclic constitutive modeling

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Guest Editor
School of Civil Engineering, Southeast University, Nanjing 211189, China
Interests: construction materials; structural dynamics; solid mechanics; construction engineering; earthquake engineering; bridge engineering; structural vibration; nonlinear analysis; mechanics of materials
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
Interests: multi-field coupling; micro-plasticity behavior; physically-based strain-hardening of alloys; crystal plasticity; computational plasticity; crystal plastic finite element method; dislocation mechanics
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Special Issue Information

Dear Colleagues,

Polymer-based materials and structures (PBMSs) are very interesting materials for broad applications requiring specific functions in the science and engineering industries, including biomedicine, aerospace, artificial intelligence, bionics, robot, energy, electronic, separation, etc. During the past decades, tremendous efforts have been made toward the advancement and development of PBMS, including concepts, classifications, design strategies, preparation methodologies, performances, structure–property relationships, potential applications, perspectives, etc. Recently, studies on polymer-based materials and structures have aroused significant interest through the fast-growing demand of new functional materials for revolutionary technologies due to their excellent physical, chemical, and mechanical properties, among others. With the rapid development of characterization techniques and continuous innovation in theoretical research, the investigations on PBMS (e.g., polymerization methodologies, second-order nonlinear optical polymers, luminescent polymers, photovoltaic polymers, electronic/optical polymers, bio-related polymers, supramolecular polymers, stimuli-responsive polymers, shape memory polymers, separation polymer membranes, energy storage polymers, and covalent organic framework polymers, etc.) still face tremendous challenges in the aspects of theory, experimentation, and computation, such as in the constitute or micromechanical modelling and finite element simulation.

Invited papers are not limited in scope to the above topics, and research related to polymer or polymers-based composites is also covered in the current Special Issue.

Dr. Chenlin Li
Dr. Peifeng Gao
Dr. Yilin Zhu
Dr. Yeshou Xu
Dr. Huili Guo
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 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

  • experimental and modelling characterization
  • mechanical/physical/chemical/transport and other properties
  • fabrication and exploitation and optimal design
  • additive manufacturing and machine learning
  • multi-physics modelling and behaviour
  • macro to atomic-scale computational methods
  • multifunctional and multiscale shape memory polymers
  • microstructure evolution
  • superabsorbent materials and structures

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Published Papers (1 paper)

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Research

19 pages, 4522 KiB  
Article
Study of Water Resistance of Polyurethane Coatings Based on Microanalytical Methods
by Chao Xie, Yufeng Shi, Zhuozhuo Si, Ping Wu, Binqiang Sun and Wenzhe Ma
Polymers 2024, 16(24), 3529; https://doi.org/10.3390/polym16243529 - 18 Dec 2024
Viewed by 1175
Abstract
This study investigates the effect of microstructural changes in polyurethane coatings on their water resistance properties. Polyurethane coatings with varying diluent contents were prepared and tested for water penetration resistance and mechanical property retention. The time-dependent behavior of water within the coatings at [...] Read more.
This study investigates the effect of microstructural changes in polyurethane coatings on their water resistance properties. Polyurethane coatings with varying diluent contents were prepared and tested for water penetration resistance and mechanical property retention. The time-dependent behavior of water within the coatings at different immersion durations was analyzed using low-field nuclear magnetic resonance (NMR). Furthermore, the free volume and characteristic molecular groups of each coating were analyzed using microscopic techniques, including positron annihilation lifetime spectroscopy (PALS) and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR−FTIR). Results indicate that diluent content significantly alters the microstructure of the coatings. With increasing diluent content, both the average pore volume and free volume fraction initially decrease and then increase, while characteristic molecular groups, including hydrophilic groups, gradually decline. The water resistance performance of the coatings was significantly influenced by the combined effects of free volume and characteristic molecular groups. Among the five tested coating formulations, coatings with diluent contents of 20% and 25% showed a superior water penetration resistance, higher retention of mechanical properties after immersion, and relatively low total content of bound and free water at all immersion ages. The entropy weight method and the equal weight method were used to assess the overall water resistance, with the following ranking of scores: f20 > f25 > f30 > f15 > f10. This study offers theoretical support to guide the design and practical application of polyurethane coatings in real-world engineering projects. Full article
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