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3D Printing of Polymer Composites, 2nd Edition

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

Deadline for manuscript submissions: 31 May 2025 | Viewed by 1055

Special Issue Editors

School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China
Interests: 3D printing; optical polymers; two-photon polymerization lithography; nanostructures; nanophotonics; diffractive optics
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Guest Editor
Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, China
Interests: shape memory polymer composite; deployable structure; metamaterials; solid mechanics; finite element modelling
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Further to the success of the Special Issue of Polymers “3D Printing in Polymer Composites”, we are delighted to reopen the Special Issue, which is now entitled “3D Printing of Polymer Composites, 2nd Edition”.

Three-dimensional (3D) printing, or additive manufacturing (AM), has revolutionized the ways in which we manufacture structures, with advantages such as customized shapes, fast prototyping, minimized waste, and lower energy costs than traditional techniques. It has been employed for structural fabrication, with dimensions ranging from nano- to meter-scale, and is widely applied in areas such as optics, acoustics, electronics, mechanics, thermodynamics, biology, and medicine. The three-dimensional printing of polymer composite materials has attracted special attention due to its promise in improving, modifying, and diversifying the properties of generic materials by introducing reinforcements. Although it is still at an early stage, composite 3D printing is gaining traction within the manufacturing industry. It provides a quick and automated approach to manufacturing composite parts, which used to be labor-intensive and required highly skilled operators. The tool-free fabrication technique for composites not only makes the process of fabricating composite parts much faster and less costly, but also opens the possibility of multifunctional composite structures for new applications.  The aim of this Special Issue is to explore the latest achievements in computational design and fabrication, process optimization, intelligent measurement and control, machine learning-based 3D printing, polymer composite design, multifunctional smart polymers, and their fascinating applications.

Dr. Hao Wang
Dr. Fengfeng Li
Guest Editors

Manuscript Submission Information

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Keywords

  • 3D printing
  • polymer composites
  • additive manufacturing
  • design and optimization
  • intelligent fabrication
  • smart materials and structures

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Published Papers (1 paper)

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Research

18 pages, 6925 KiB  
Article
Improvement of Polymer/Metal Adhesion Using Anodizing Treatment and 3D Printing Process
by Seung Wan Ryu, Dong Hyun Kim, Wonhwa Lee, Jin-Yong Hong, Young-Pyo Jeon and Jea Uk Lee
Polymers 2025, 17(3), 299; https://doi.org/10.3390/polym17030299 - 23 Jan 2025
Cited by 1 | Viewed by 837
Abstract
Joining materials with different physicochemical properties presents significant challenges. This study investigates the one-step anodization of aluminum in a mixed phosphoric acid and hydrogen peroxide solution, followed by the direct injection molding of polymer resin to enhance joint properties. The anodizing treatment is [...] Read more.
Joining materials with different physicochemical properties presents significant challenges. This study investigates the one-step anodization of aluminum in a mixed phosphoric acid and hydrogen peroxide solution, followed by the direct injection molding of polymer resin to enhance joint properties. The anodizing treatment is performed at constant electrical current with phosphoric acid solutions of various concentrations. Phosphoric acid anodizing enables the formation of 3D channeling pore structure with micropits and uniform nanopores on the aluminum surface. Hydrogen peroxide acts as an oxidizing agent and promotes the dissolution reaction, thereby increasing the size of the nanopores. Larger pores facilitated the penetration of polymer resin into the aluminum oxide layer during injection molding, resulting in bonding strengths up to 40.34 MPa. This improvement is substantial when compared to the bonding strengths achieved through conventional injection molding processes. These results highlight that the increase in nanopore size due to hydrogen peroxide addition played a critical role in enhancing the bonding strength, as it facilitated better penetration and interlocking of the polymer resin within the anodized aluminum layer. Furthermore, a three-dimensional (3D) printing process was able to join polymer resins to the anodized aluminum surface, where the larger nanopores with the addition of the hydrogen peroxide is more beneficial to the bonding strengths than the direct injection molding is. This alternative approach addresses the environmental issues associated with the use of Cr(VI)-based anodizing solutions and the lightweight composites with applicability to various industries that could be produced using this method. Full article
(This article belongs to the Special Issue 3D Printing of Polymer Composites, 2nd Edition)
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