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Polymers
Special Issues
Recent Advances in Polymers Adhesive
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Recent Advances in Polymers Adhesive

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

Deadline for manuscript submissions: closed (10 August 2023) | Viewed by 3996

Special Issue Editor

Dr. Xiaona Li

E-Mail Website
Guest Editor
College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
Interests: biomass composites and adhesives; environmentally friendly wood adhesives; anti-mildew of wood adhesives; bio-film

Special Issue Information

Dear Colleagues,

This issue draws together the many aspects of the environmentally friendly polymer adhesive, from fundamental research and development work to industrial applications. This issue covers the following subjects- structural adhesives (involving synthetic and biomass wood adhesives, etc.); non-structural adhesives (involving hot melt adhesives, asphalt, and rubber, etc.); special adhesives (involving medical adhesives, underwater bonding adhesives, thermal conductive adhesives, and conductive adhesives, etc.); renewable and sustainable adhesives; new adhesives: derived by chemical and biosynthetic routes, or obtained from biomaterials; methods of testing; characterization of adhesives: mechanical, physical, thermal, rheological, morphological, and others; bonding interfacial interactions; environmental fate: end products and intermediates of biodegradation; and other related topics.

Dr. Xiaona Li
Guest Editor

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

  • structural adhesives
  • non-structural adhesives
  • special adhesives
  • processing
  • characterization
  • interfacial interactions
  • environmental fate

Published Papers (2 papers)

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Research

13 pages, 2664 KiB  
Article
Preparation and Characterization of Soybean Protein Adhesives Modified with an Environmental-Friendly Tannin-Based Resin
by Hanyin Li, Yujie Wang, Wenwen Xie, Yang Tang, Fan Yang, Chenrui Gong, Chao Wang, Xiaona Li and Cheng Li
Polymers 2023, 15(10), 2289; https://doi.org/10.3390/polym15102289 - 12 May 2023
Cited by 8 | Viewed by 1779
Abstract
Soybean protein-based adhesives are limited in their application due to their poor wet bonding strength and poor water resistance. Herein, we prepared a novel, environmentally friendly soybean protein-based adhesive by adding tannin-based resin (TR) to improve the performance of water resistance and wet [...] Read more.
Soybean protein-based adhesives are limited in their application due to their poor wet bonding strength and poor water resistance. Herein, we prepared a novel, environmentally friendly soybean protein-based adhesive by adding tannin-based resin (TR) to improve the performance of water resistance and wet bonding strength. The active sites of TR reacted with the soybean protein and its functional groups and formed strong cross-linked network structures, which improved the cross-link density of the adhesives and then improved the water resistance. The residual rate increased to 81.06% when 20 wt%TR was added, and the water resistance bonding strength reached 1.07 MPa, which fully met the Chinese national requirements for plywood (Class II, ≥0.7 MPa). SEM observations were performed on the fracture surfaces of all modified SPI adhesives after curing. The modified adhesive has a denser and smooth cross-section. Based on the TG and DTG plots, the thermal stability performance of the TR-modified SPI adhesive was improved when TR was added. The total weight loss of the adhesive decreased from 65.13% to 58.87%. This study provides a method for preparing low-cost and high-performance, environmentally friendly adhesives. Full article
(This article belongs to the Special Issue Recent Advances in Polymers Adhesive)
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13 pages, 5104 KiB  
Article
Reducing Interface Defects and Porosity of Adhesive Bonded Aluminum Alloy Joints via Ultrasonic Vibration
by Hui Wang, Guodong Kang, Yizhe Chen, Zhaoyi Liu and Lin Hua
Polymers 2023, 15(9), 2098; https://doi.org/10.3390/polym15092098 - 28 Apr 2023
Cited by 1 | Viewed by 1622
Abstract
The surface microstructure formed by physical or chemical modification is essential for the desired joint strength. However, defects in the bonding interface and adhesive can be found. Such defects decrease shear strength and durability. In this study, ultrasonic vibration was applied to liquid [...] Read more.
The surface microstructure formed by physical or chemical modification is essential for the desired joint strength. However, defects in the bonding interface and adhesive can be found. Such defects decrease shear strength and durability. In this study, ultrasonic vibration was applied to liquid adhesive on the sandblasted aluminum alloy plates. With ultrasonic treatment, the joints obtained the compact bonding interfaces and lower porosity of the adhesive layer. The treatment improved the shear strength by 9.1%. After two weeks of hydrothermal aging, the shear strength of joints only sandblasted decreased drastically by 48.9%, while it was 14% for the joints with ultrasonic vibration. The cavitation effect in the adhesive was detected by the aluminum foil erosion method. The result showed that a great number of micro-jets generated by the cavitation effect have intensive impact on the bonding interface which provide the adhesive with powerful force to fill the micro-grooves. Another finding in this work is that bubbles were gathered in the adhesive away from the vibration area. This mechanism was successfully used to reduce the porosity of the adhesive layer of joints. Full article
(This article belongs to the Special Issue Recent Advances in Polymers Adhesive)
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