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Polymers
Special Issues
Polymer Adhesion and Interfaces for Advanced Manufacturing
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Polymer Adhesion and Interfaces for Advanced Manufacturing

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

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 46480

Special Issue Editors

Prof. Dr. Boxin Zhao

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Guest Editor
Department of Chemical Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Interests: surface science and bionanomaterials; interfacial materials engineering for advanced manufacturing; biomimicry and biomimetic materials; multifunctional polymers and nanocomposites; biopolymer; hydrogels and healthcare materials; advanced coating and adhesive bonding technology
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Li Yu

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Hubei University, Wuhan, China
Interests: smart materials for biomimetic soft robots; photoresponsive and multifunctional macromolecules and micromolecules; smart photovoltaic windows; interfacial engineering and advanced manufacturing
Prof. Marco Alfano

E-Mail Website
Guest Editor
Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Interests: mechanics of materials; additive manufacturing; adhesive bonding; lightweight materials; deformation and fracture; surface modification; finite element modeling; cohesive zone modeling; bio-inspired materials

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the recent advances and new understandings of polymer adhesion and interfaces for advanced manufacturing, where mechanical robustness, smart properties, new functions, and environmental friendliness are desired. Papers are sought that discuss the adhesion and interfaces of both synthetic and biological polymers used in manufacturing processes. Of particular interest are new structures and functions enabled by polymers and their assembly, packaging and integration, and their characterizations. 

Example topics are polymer coating with engineered surface wettability, friction, and other functionalities (e.g., antimicrobial, anti-corrosion); polymer adhesives used in lamination and bonding with enhanced mechanical strength and toughness; the structure–property relationship of multifunctional polymeric composites where the filler interfaces, dispersion, and micromechanical properties are critical aspects; adhesive bonding of metals, polymers, and fiber-reinforced composites, including hybrid joining techniques; mechanical and physical surface pre-treatments for advanced lightweight materials, including fiber reinforced composites; mechanical characterization techniques for adhesives and adhesive joints, including strength, fracture toughness, and durability; modeling techniques, including analytical and numerical models for the analysis of strength and fracture toughness under static and/or dynamic loading; studies of polymer adhesion and interfaces in new manufacturing technologies, such as 3D printing and/or new applications, such as bio-inspired robotic devices; and adhesion adaptability, and the use and application of biodegradable polymers for sustainable manufacturing.

Prof. Boxin Zhao
Prof. Li Yu
Prof. Marco Alfano
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

  • Polymer interface
  • Interfacial phenomena
  • Interfacial adhesion
  • Coating and bonding
  • Multifunctional polymeric composites
  • Interfacial fracture
  • Surface treatment
  • Shear and peel stresses
  • Fracture toughness
  • Impact
  • Adhesion of 3D printed polymers
  • NDT&NDE for polymer interfaces
  • Advanced manufacturing
  • Bio-inspired robotic device

Published Papers (6 papers)

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Research

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13 pages, 5900 KiB  
Article
Improving the Barrier Properties of Packaging Paper by Polyvinyl Alcohol Based Polymer Coating—Effect of the Base Paper and Nanoclay
by Zhenghui Shen, Araz Rajabi-Abhari, Kyudeok Oh, Guihua Yang, Hye Jung Youn and Hak Lae Lee
Polymers 2021, 13(8), 1334; https://doi.org/10.3390/polym13081334 - 19 Apr 2021
Cited by 45 | Viewed by 7342
Abstract
The poor barrier properties and hygroscopic nature of cellulosic paper impede the wide application of cellulosic paper as a packaging material. Herein, a polyvinyl alcohol (PVA)-based polymer coating was used to improve the barrier performance of paper through its good ability to form [...] Read more.
The poor barrier properties and hygroscopic nature of cellulosic paper impede the wide application of cellulosic paper as a packaging material. Herein, a polyvinyl alcohol (PVA)-based polymer coating was used to improve the barrier performance of paper through its good ability to form a film. Alkyl ketene dimer (AKD) was used to enhance the water resistance. The effect of the absorptive characteristics of the base paper on the barrier properties was explored, and it was shown that surface-sized base paper provides a better barrier performance than unsized base paper. Nanoclay (Cloisite Na+) was used in the coating formulation to further enhance the barrier performance. The results show that the coating of PVA/AKD/nanoclay dispersion noticeably improved the barrier performance of the paper. The water vapor transmission rate of the base paper was 533 g/m2·day, and it decreased sharply to 1.3 g/m2·day after the application of a double coating because of the complete coverage of the base paper by the PVA-based polymer coating. The coated paper had excellent water resistance owing to its high water contact angle of around 100°. The grease resistance and mechanical properties of the base paper also improved after coating. This work may provide inspiration for improving the barrier properties of packaging paper through the selection of a suitable base paper and coating formulation. Full article
(This article belongs to the Special Issue Polymer Adhesion and Interfaces for Advanced Manufacturing)
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17 pages, 4462 KiB  
Article
Development of Polyvinylidene Fluoride Membrane via Assembly of Tannic Acid and Polyvinylpyrrolidone for Filtration of Oil/Water Emulsion
by Normi Izati Mat Nawi, Syasya Ong Amat, Muhammad Roil Bilad, Nik Abdul Hadi Md Nordin, Norazanita Shamsuddin, Saiful Prayogi, Thanitporn Narkkun and Kajornsak Faungnawakij
Polymers 2021, 13(6), 976; https://doi.org/10.3390/polym13060976 - 22 Mar 2021
Cited by 21 | Viewed by 3190
Abstract
Wastewater containing oil/water emulsion has a serious ecological impact and threatens human health. The impact worsens as its volume increases. Oil/water emulsion needs to be treated before it is discharged or reused again for processing. A membrane-based process is considered attractive in effectively [...] Read more.
Wastewater containing oil/water emulsion has a serious ecological impact and threatens human health. The impact worsens as its volume increases. Oil/water emulsion needs to be treated before it is discharged or reused again for processing. A membrane-based process is considered attractive in effectively treating oil/water emulsion, but progress has been dampened by the membrane fouling issue. The objective of this study is to develop polyvinylidene fluoride (PVDF) membranes customized for oil/water emulsion separation by incorporating assembly of tannic acid (TA) and polyvinylpyrrolidone (PVP) in the polymer matrix. The results show that the assembly of TA/PVP complexation was achieved as observed from the change in colour during the phase inversion and as also proven from the characterization analyses. Incorporation of the TA/PVP assembly leads to enhanced surface hydrophilicity by lowering the contact angle from 82° to 47°. In situ assembly of the TA/PVP complex also leads to enhanced clean water permeability by a factor of four as a result of enhanced mean flow pore size from 0.2 to 0.9 µm. Owing to enhanced surface chemistry and structural advantages, the optimum hydrophilic PVDF/TA/PVP membrane poses permeability of 540.18 L/(m2 h bar) for oil/water emulsion filtration, three times higher than the pristine PVDF membrane used as the reference. Full article
(This article belongs to the Special Issue Polymer Adhesion and Interfaces for Advanced Manufacturing)
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13 pages, 3167 KiB  
Article
The Effect of a Polymer-Stabilized Latex Cobinder on the Optical and Strength Properties of Pigment Coating Layers
by Zhenghui Shen, Araz Rajabi-Abhari, Kyudeok Oh, Sooyoung Lee, Jiachuan Chen, Ming He and Hak Lae Lee
Polymers 2021, 13(4), 568; https://doi.org/10.3390/polym13040568 - 14 Feb 2021
Cited by 7 | Viewed by 2442
Abstract
Coated paper with a porous coating layer may have enhanced light-scattering ability and thus favorable optical properties. However, the increased porosity of such a coating layer is likely to decrease the strength of the coated paper, thereby adversely affecting the quality of the [...] Read more.
Coated paper with a porous coating layer may have enhanced light-scattering ability and thus favorable optical properties. However, the increased porosity of such a coating layer is likely to decrease the strength of the coated paper, thereby adversely affecting the quality of the paper in the printing and converting processes. In this research, polymer-stabilized (PS) latex was prepared and used as a cobinder for the pigment coating of the paper. The PS latex particles were colloidally stabilized by a 3:1 mixture of starch and polyvinyl alcohol. The influence of the PS latex cobinder on the viscosity, sedimentation, and consolidation of coating colors was investigated. In addition, the effect of the cobinder on the properties of coating layers, namely, their porosity and surface, optical, and tensile properties, was examined. The results revealed that the PS latex cobinder formed microstructures in the coating colors and affected their viscosity. The addition of PS latex also led to enhanced interactions between coating color components, which affected the consolidation of the coating color, resulting in the formation of dried coating layers with greater porosity and improved optical properties (i.e., higher brightness and opacity) relative to coatings without the PS latex cobinder. Furthermore, the addition of PS latex improved the tensile strength of the coating layers, which was attributable to the small size and the polymeric protective shell of the cobinder particles. Thus, these results show that this PS latex cobinder has the potential to be used for the production of high-quality coated paper products. Full article
(This article belongs to the Special Issue Polymer Adhesion and Interfaces for Advanced Manufacturing)
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13 pages, 2643 KiB  
Article
Closed-Form Solution and Experimental Verification for the Axisymmetric Deformation Problem of Blistering Circular Thin Polymer Films under Uniformly Distributed Gas Pressure
by Zhi-Xin Yang, Xiao-Ting He and Si-Rui Wen
Polymers 2020, 12(5), 1130; https://doi.org/10.3390/polym12051130 - 14 May 2020
Cited by 3 | Viewed by 1962
Abstract
The existing studies indicate that the measurement formulas used in blister test techniques, which are used to measure the mechanical properties of thin-film/substrate systems, are usually given based on an approximation—that is, the applied direction of the uniformly distributed transverse load is always [...] Read more.
The existing studies indicate that the measurement formulas used in blister test techniques, which are used to measure the mechanical properties of thin-film/substrate systems, are usually given based on an approximation—that is, the applied direction of the uniformly distributed transverse load is always vertical, while the applied direction of the uniformly distributed gas pressure is always perpendicular to the surface of the thin film. This approximation will lead to a large measurement error. In this study, we obtained the analytical solution to the problem of axisymmetric deformation of blistering circular thin polymer films under the action of uniformly distributed gas pressure via the power series method. An example is given to illustrate the error caused by the approximation mentioned above, and the validity of the solution presented here is verified. The result shows that the chance of error caused by the approximation increases with the increase in the applied load, and it far exceeds the allowable error of measurement when the applied load is relatively large. In addition, the related experiments of the blistering circular thin polymer film under uniformly distributed gas pressure are carried out, and the experimental results are compared with the theoretical results. The comparison results show that the analytical solution given in this paper is correct. The solution presented here is of great significance to improve the measurement accuracy of the blister test technique. Full article
(This article belongs to the Special Issue Polymer Adhesion and Interfaces for Advanced Manufacturing)
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Review

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31 pages, 2484 KiB  
Review
On the Solubility and Stability of Polyvinylidene Fluoride
by Jean E. Marshall, Anna Zhenova, Samuel Roberts, Tabitha Petchey, Pengcheng Zhu, Claire E. J. Dancer, Con R. McElroy, Emma Kendrick and Vannessa Goodship
Polymers 2021, 13(9), 1354; https://doi.org/10.3390/polym13091354 - 21 Apr 2021
Cited by 98 | Viewed by 17304
Abstract
This literature review covers the solubility and processability of fluoropolymer polyvinylidine fluoride (PVDF). Fluoropolymers consist of a carbon backbone chain with multiple connected C–F bonds; they are typically nonreactive and nontoxic and have good thermal stability. Their processing, recycling and reuse are rapidly [...] Read more.
This literature review covers the solubility and processability of fluoropolymer polyvinylidine fluoride (PVDF). Fluoropolymers consist of a carbon backbone chain with multiple connected C–F bonds; they are typically nonreactive and nontoxic and have good thermal stability. Their processing, recycling and reuse are rapidly becoming more important to the circular economy as fluoropolymers find widespread application in diverse sectors including construction, automotive engineering and electronics. The partially fluorinated polymer PVDF is in strong demand in all of these areas; in addition to its desirable inertness, which is typical of most fluoropolymers, it also has a high dielectric constant and can be ferroelectric in some of its crystal phases. However, processing and reusing PVDF is a challenging task, and this is partly due to its limited solubility. This review begins with a discussion on the useful properties and applications of PVDF, followed by a discussion on the known solvents and diluents of PVDF and how it can be formed into membranes. Finally, we explore the limitations of PVDF’s chemical and thermal stability, with a discussion on conditions under which it can degrade. Our aim is to provide a condensed overview that will be of use to both chemists and engineers who need to work with PVDF. Full article
(This article belongs to the Special Issue Polymer Adhesion and Interfaces for Advanced Manufacturing)
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20 pages, 2614 KiB  
Review
Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability
by Aleksander Cholewinski, Pengxiang Si, Marianna Uceda, Michael Pope and Boxin Zhao
Polymers 2021, 13(4), 631; https://doi.org/10.3390/polym13040631 - 20 Feb 2021
Cited by 54 | Viewed by 13054
Abstract
Binders play an important role in electrode processing for energy storage systems. While conventional binders often require hazardous and costly organic solvents, there has been increasing development toward greener and less expensive binders, with a focus on those that can be processed in [...] Read more.
Binders play an important role in electrode processing for energy storage systems. While conventional binders often require hazardous and costly organic solvents, there has been increasing development toward greener and less expensive binders, with a focus on those that can be processed in aqueous conditions. Due to their functional groups, many of these aqueous binders offer further beneficial properties, such as higher adhesion to withstand the large volume changes of several high-capacity electrode materials. In this review, we first discuss the roles of binders in the construction of electrodes, particularly for energy storage systems, summarize typical binder characterization techniques, and then highlight the recent advances on aqueous binder systems, aiming to provide a stepping stone for the development of polymer binders with better sustainability and improved functionalities. Full article
(This article belongs to the Special Issue Polymer Adhesion and Interfaces for Advanced Manufacturing)
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