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Processing of Polymer Composites—Preparation, Structure, Properties and Applications

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

Deadline for manuscript submissions: 30 November 2025 | Viewed by 1134

Special Issue Editors


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Guest Editor
Polymer Research Institute, The State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610017, China
Interests: processing of polymer composites; foams
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Guest Editor
National and Local Engineering Laboratory for Slag Comprehensive Utilization and Environment Technology, School of Materials Science and Engineering, Shaanxi University of Technology, Hanzhong 723000, China
Interests: processing of polymer composites

Special Issue Information

Dear Colleagues,

Polymer composites are critical for applications in the automotive, electronics, packaging, and aerospace sectors, among others, thanks to their flexible designability, lightweightness, low cost, and ease of processing when compared with metallic and ceramic counterparts. Processing methods of interest include melt compounding, injection molding, casting, calendaring, foaming, mixing, etc., which have been developed to prepare multifunctional composites to address the demanding needs for the above industrial sectors. Properties of polymer composites are determined by the matrix type, functional fillers, and the distribution of fillers, which can be affected by multiple factors such as the surface properties and geometry of fillers, processing parameters, the host matrix, and blending methods, among others. Relevant progress in modeling is also within the scope of the topic. This Special Issue is dedicated to providing a forum for the preparation of polymer composites with a particular focus on the state-of-the-art progress, structural design, development, and new trends. Perspectives, review papers, full papers, and technical papers are particularly welcome.

Dr. Shengtai Zhou
Dr. Zhongguo Zhao
Guest Editors

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Keywords

  • processing of polymer composites
  • thermal interface materials
  • electrical conductivity
  • thermal conductivity
  • functional fillers
  • modification of fillers
  • polymer blends
  • processing conditions
  • thermoplastic composites
  • thermoset composites
  • foams
  • characterization methods
  • modeling
  • process–structure–properties

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Published Papers (2 papers)

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Research

15 pages, 23278 KB  
Article
Assessing the Influence of Inorganic Nanoparticles on the Mechanical and Tribological Performance of PPS-Based Composites: A Comparative Study
by Jixiang Li, Mei Liang, Xiaowen Zhao, Shengtai Zhou and Huawei Zou
Polymers 2025, 17(19), 2573; https://doi.org/10.3390/polym17192573 - 23 Sep 2025
Viewed by 289
Abstract
In this work, γ-irradiated poly(tetrafluoroethylene) (i-PTFE) and short carbon fibre (SCF) along with different types of ceramic inorganic nanoparticles (i.e., SiC, SiO2, ZnO, TiO2, and CaCO3) were employed to improve the mechanical and tribological performance of polyphenylene [...] Read more.
In this work, γ-irradiated poly(tetrafluoroethylene) (i-PTFE) and short carbon fibre (SCF) along with different types of ceramic inorganic nanoparticles (i.e., SiC, SiO2, ZnO, TiO2, and CaCO3) were employed to improve the mechanical and tribological performance of polyphenylene sulphide (PPS) composites. The results showed that the flexural strength and modulus of PPS composites increased with the addition of inorganic nanoparticles. Moreover, the inorganic nanoparticles not only exhibited a ‘micro-bearing’ effect during friction tests, but also promoted the formation of high-quality transfer film on the surface of a friction pair, significantly improving the self-lubricating performance of PPS composites. XPS analysis confirmed the occurrence of friction-induced chemical reactions during the friction process in nanoparticle-containing PPS/i-PTFE/SCF composites, which was helpful in improving the tribological performance. PPS/i-PTFE/SCF/SiC composite demonstrated an average friction coefficient of 0.083 and specific wear rate of 9.04 × 10−6 mm3/Nm, which was the best among the studied systems. This work provided valuable insights for developing high-performance self-lubricating polymer composites that can be applied in high-end engineering sectors. Full article
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14 pages, 10385 KB  
Article
Circular Shear Printing of Spiral-Oriented CF-PP Components for Enhanced Mechanical Performance and Warp Mitigation
by Dashan Mi, Tao Yang, Jinghua Jiang, Haiqing Bai and Shikui Jia
Polymers 2025, 17(13), 1739; https://doi.org/10.3390/polym17131739 - 22 Jun 2025
Viewed by 521
Abstract
Extrusion-based printers have attracted much attention for their simplified printing process and broader material compatibility. Carbon fibers (CF), known for their excellent mechanical properties, are incorporated into polypropylene (PP) printing materials. This study presents a shear screw printer (SSP) with a modified screw [...] Read more.
Extrusion-based printers have attracted much attention for their simplified printing process and broader material compatibility. Carbon fibers (CF), known for their excellent mechanical properties, are incorporated into polypropylene (PP) printing materials. This study presents a shear screw printer (SSP) with a modified screw design. The SSP generates torsional shear forces, enabling helical orientation of CFs within PP/CF composites. The study also compares the SSP’s performance with that of a conventional screw printer (CSP). PP/CF composite specimens containing 15% CF were printed at four different layup angles: 0°, 45°, 90°, and ±45° (net). The results show that combining CFs’ helical orientation with a net printing arrangement can effectively enhance tensile properties while reducing anisotropy. Furthermore, this approach can significantly mitigate warping in printed parts. Full article
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