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Research on Properties of Polymers and Their Engineering Applications
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Research on Properties of Polymers and Their Engineering Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Polymeric Materials".

Deadline for manuscript submissions: 10 July 2024 | Viewed by 1591

Special Issue Editors

Prof. Dr. Jintang Guo

E-Mail Website
Guest Editor
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
Interests: functional polymers; oil field chemicals
Dr. Miaomiao Hu

E-Mail Website
Guest Editor
Associate Professor, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
Interests: functional materials; cementing engineering; construction materials

Special Issue Information

Dear Colleagues,

There is a long history of people using polymers. Thousands of years ago, cotton, hemp, silk, and wool were applied as fabric materials, while bamboo and wood were used as building materials. The advent and development of polymerization technology has made a wealth of materials available across various industries. New methods of polymerization, new polymers and new structures, and new properties and their applications continue to emerge. Functional polymers with good properties significantly help to resolve some of the problems which are arising in the development of engineering materials. At the same time, there are new requirements for the use of materials under the goal of carbon neutrality. The aim of this Special Issue is to publish the preparation and characterization of functional polymers as well as their engineering applications, including infrastructure construction, oil and gas exploration, clean energy, and sewage treatment. This Special Issue will provide the newest research on engineering polymers and serve as a platform for researchers to exchange scientific findings, thereby accelerating the development of polymerization and promoting the engineering application of new polymers. In this Special Issue, original research article and reviews are welcomed. Research areas may include (but are not limited to) the following: disinfection and sterilization, infrastructures construction, oil and gas prospecting, mineral mining, clean energy and sewage treatment.

Prof. Dr. Jintang Guo
Dr. Miaomiao Hu
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. Materials 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 2600 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
  • polymerization
  • anti-corrosion
  • cementing engineering
  • drilling
  • construction materials
  • disinfection
  • sterilization
  • sewage treatment

Published Papers (2 papers)

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Research

20 pages, 4467 KiB  
Article
Solidification/Stabilization of Chromium-Contaminated Soils by Polyurethane during Freeze–Thaw Cycles: Mechanical, Leaching and Microstructure Characterization
by Qiang Ma, Pangkun Zheng, Junjie Chen and Xuesong Lu
Materials 2024, 17(6), 1347; https://doi.org/10.3390/ma17061347 - 15 Mar 2024
Viewed by 595
Abstract
The treatment of chromium-contaminated soil in seasonal frozen soil areas has been the subject of recent interest. Polyurethane (PU), as a polymer material with excellent freeze–thaw resistance and abrasion resistance, has the potential to solidify Chromium-Contaminated soil in seasonal frozen soil areas. However, [...] Read more.
The treatment of chromium-contaminated soil in seasonal frozen soil areas has been the subject of recent interest. Polyurethane (PU), as a polymer material with excellent freeze–thaw resistance and abrasion resistance, has the potential to solidify Chromium-Contaminated soil in seasonal frozen soil areas. However, there is a lack of research on the mechanism of PU involved in solidifying/stabilizing chromium-contaminated soil in seasonal frozen regions from the perspective of pore structure and functional group coordination bonds. In this study, the leaching behavior of PU with different contents under different freeze–thaw cycles was analyzed, and the mechanism of PU in seasonal frozen regions was explored from the perspective of pores and functional groups by combining various microscopic characterization methods. The results show that PU can effectively resist the deterioration of chromium-contaminated soil after freeze–thaw cycles and can better prevent the harm of secondary leaching. The leaching concentration of chromium ion is only 1.09 mg/L, which is below China’s regulatory limits. PU is beneficial for inhibiting the expansion of ice crystals in chromium-contaminated soil in seasonal frozen soil areas. PU solidifies chromium by physical encapsulation and complexation reactions. The amide functional groups, methyl-CH3 and isocyanate groups in PU play a leading role in the complexation with chromium. Although the freeze–thaw cycle will destroy the coordination bond between the PU functional group and chromium, chromium cannot break through the bond of PU film. This study confirmed the feasibility of using PU to solidify Chromium-Contaminated soil in seasonal frozen soil areas, which can provide research support and reference for in situ engineering in the future. Full article
(This article belongs to the Special Issue Research on Properties of Polymers and Their Engineering Applications)
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14 pages, 7018 KiB  
Article
Three-Point Safety Polymeric Belt Webbing versus Four-Point Belt for a Race Car in Frontal Crashes
by Calin Itu and Sorin Vlase
Materials 2023, 16(24), 7640; https://doi.org/10.3390/ma16247640 - 14 Dec 2023
Viewed by 644
Abstract
Polyester is currently the main material used for the manufacture of safety belts used in car transport for the protection of passengers and the driver. The seat belt is the main passive safety element used in vehicle engineering. In this work, the behavior [...] Read more.
Polyester is currently the main material used for the manufacture of safety belts used in car transport for the protection of passengers and the driver. The seat belt is the main passive safety element used in vehicle engineering. In this work, the behavior of two safety belts, one with three-point fastening and the other with four-point fastening, which equip the seat of a racing car used in Formula Student for use in a frontal impact with a vertical wall. A model with finite elements is used to describe the entire car–driver shock-absorber assembly. The von Mises stresses calculated for both cases under consideration are below the tensile strength. The tensions arising in the belt and the accelerations required at various points of the driver’s body are determined by both the properties of the utilized polyester and the chosen construction variant. The obtained results justify the use of the three-point and four-point belt in the cases of both common and race cars. Full article
(This article belongs to the Special Issue Research on Properties of Polymers and Their Engineering Applications)
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