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Functional Polymers and Composites: Materials, Processes and Allied Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Chemical and Molecular Sciences".

Deadline for manuscript submissions: closed (30 December 2024) | Viewed by 2252

Special Issue Editor


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Guest Editor
Department of Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
Interests: polymers on civil engineering; environmental and geosynthetic polymers; technical polymers; sustainable polymer materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Functional polymers and composites are gradually expanding their position as a connected stream in both academic and industrial fields. They are capable of manufacturing multifunctional and multi-end-use products for specific purposes using various raw materials, such as industrial and advanced materials, and manufacturing processes.

In particular, when using specific materials to impart various functionalities, it is possible to establish a fundamental theoretical infrastructure applicable to the fields of biology, medicine, environment, and transportation. This enables the implementation of eco-friendly and sustainable applications through carbon dioxide reduction technology. This Special Issue will cover functional polymers and composites, starting from raw materials and extending to processes and allied applications, including:

  • Materials for functional polymers and composites;
  • Sustainable polymer materials and composites;
  • Processes and devices for polymer composite manufacturing;
  • Functional polymer finishing and treatments;
  • Properties of functional polymers and composites;
  • Application to engineering fields.

Prof. Dr. Han-Yong Jeon
Guest Editor

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Keywords

  • functional polymers
  • sustainable polymers
  • technical polymers
  • polymer composites
  • composite manufacturing
  • polymer finishing process
  • functional polymer application
  • special fields of functional polymers and composites.

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Published Papers (2 papers)

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Research

16 pages, 12144 KiB  
Article
Influence of Vinyl Acetate-Based and Epoxy-Based Compatibilizers on the Design of TPS/PBAT and TPS/PBAT/PBSA Films
by Cristina Martín-Poyo, Josep P. Cerisuelo-Ferriols and Jose D. Badia-Valiente
Appl. Sci. 2025, 15(1), 456; https://doi.org/10.3390/app15010456 - 6 Jan 2025
Cited by 1 | Viewed by 716
Abstract
The study investigated the effect of Vinnex® (vinyl acetate polymer) and Joncryl® (epoxy-based copolymer) as compatibilizers on the mechanical properties of thermoplastic starch (TPS) and polybutylene adipate-co-terephthalate (PBAT) and polybutylene succinate-co-adipate (PBSA) films. Due to TPS’s hydrophilicity and brittleness, blending it [...] Read more.
The study investigated the effect of Vinnex® (vinyl acetate polymer) and Joncryl® (epoxy-based copolymer) as compatibilizers on the mechanical properties of thermoplastic starch (TPS) and polybutylene adipate-co-terephthalate (PBAT) and polybutylene succinate-co-adipate (PBSA) films. Due to TPS’s hydrophilicity and brittleness, blending it with biodegradable polyesters like PBAT enhances its properties but may introduce compatibility challenges. This research evaluated three formulations (TPS/PBAT with Vinnex, TPS/PBAT with Joncryl, and TPS/PBAT with both additives) along with the inclusion of a polybutadiene succinate-co-adipate (PBSA) matrix to further improve performance. Mechanical testing (tensile strength, elongation at break, Young’s modulus) reveals that Vinnex and Joncryl enhance plasticization and polymer compatibility, positively impacting TPS/PBAT’s mechanical properties. The introduction of the PBSA matrix further improves tensile strength and elongation. Scanning electron microscopy (SEM) confirms better additive dispersion and interfacial adhesion within the blend. Complementary analysis includes melt flow index, melt density, DSC, and TGA, providing a comprehensive understanding of how these additives optimize TPS/PBAT compounds for sustainable applications. Mechanically, the compatibilized blends showed improved performance: Vinnex mainly enhanced stiffness, Joncryl primarily improved elongation, and a synergistic effect was observed with their combination. Full article
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22 pages, 3108 KiB  
Article
Thermal Buckling and Postbuckling Analysis of Cracked FG-GPL RC Plates Using a Phase-Field Crack Model
by Jin-Rae Cho
Appl. Sci. 2024, 14(19), 8794; https://doi.org/10.3390/app14198794 - 29 Sep 2024
Viewed by 1105
Abstract
A phase-field crack model is developed for numerical analysis of thermal buckling and postbuckling behavior of a functionally graded (FG) graphene platelet-reinforced composite (FG-GPLRC) plate with a central crack. The inclined central crack is represented according to a stable, effective phase-field formulation (PFF) [...] Read more.
A phase-field crack model is developed for numerical analysis of thermal buckling and postbuckling behavior of a functionally graded (FG) graphene platelet-reinforced composite (FG-GPLRC) plate with a central crack. The inclined central crack is represented according to a stable, effective phase-field formulation (PFF) by introducing a virtual crack rotation. The problem is formulated using first-order shear deformation theory (SDT) incorporated with von Kármán geometric nonlinearity. And it is approximated by combining regular Laplace interpolation functions and crack-tip singular functions in the framework of the 2D extended natural element method (XNEM). Troublesome shear locking is suppressed by applying the concept of the MITC (mixed-interpolated tensorial components)3+ shell element to the present numerical method. The results demonstrate the effectiveness of this method in accurately predicting the critical buckling temperature rise (CBTR) and the thermal postbuckling path. In addition, the parametric results reveal that the CBTR and postbuckling path of the FG-GPLRC plate are distinct from those of the FG carbon nanotube-reinforced composite (FG-CNTRC) plate and remarkably affected by the parameters associated with the crack and graphene platelet (GPL). Full article
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