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Polymers
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Advances in the Preparation, Properties and Application of Polyurethane, Cellulose...
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Advances in the Preparation, Properties and Application of Polyurethane, Cellulose and Their Composites (2nd Edition)

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

Deadline for manuscript submissions: 31 July 2024 | Viewed by 791

Special Issue Editors

Dr. Hui Zhao

E-Mail Website
Guest Editor
School of Light Industry and Food Engineering, Guangxi University, Nanning, China
Interests: polyurethane; cellulose; composites
Special Issues, Collections and Topics in MDPI journals
Dr. Yang Liu

E-Mail Website
Guest Editor
School of Light Industry and Food Engineering, Guangxi University, Nanning, China
Interests: cellulose; packaging
Special Issues, Collections and Topics in MDPI journals
Dr. Yan Jiang

E-Mail Website
Guest Editor
School of Light Industry and Food Engineering, Guangxi University, Nanning, China
Interests: lignocellulose; nanostructure; nanocomposite; sustainable chemistry; structural design; plastic replacement; green functionalization
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Polyurethane, cellulose and their composites have been widely used in hitherto unimagined areas due to their excellent properties. Along with their fast-increasing consumption in recent years, the demand for advanced polyurethane and cellulose-based composites is growing rapidly. Therefore, this Special Issue seeks to showcase research papers, short communications, and review articles that focus on innovations in polyurethane and cellulose-based materials, including material synthesis, modification and engineering.

Dr. Hui Zhao
Dr. Yang Liu
Dr. Yan Jiang
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

  • polyurethane
  • cellulose
  • lignocellulose
  • composites
  • properties

Published Papers (2 papers)

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Research

14 pages, 6165 KiB  
Article
A New Strategy for the Treatment of Old Corrugated Container Pulping Wastewater by the Ozone-Catalyzed Polyurethane Sponge Biodegradation Process
by Yuxuan Cai, Shaozhe Huang and Jianhua Xiong
Polymers 2024, 16(10), 1329; https://doi.org/10.3390/polym16101329 - 9 May 2024
Abstract
Old Corrugated Container (OCC) pulping wastewater has a complex organic composition and high levels of biotoxicity. The presence of dissolved and colloidal substances (DCSs) is a major limiting factor for pulp and paper companies to achieve closed-water recycling. In order to solve this [...] Read more.
Old Corrugated Container (OCC) pulping wastewater has a complex organic composition and high levels of biotoxicity. The presence of dissolved and colloidal substances (DCSs) is a major limiting factor for pulp and paper companies to achieve closed-water recycling. In order to solve this problem, the coupled ozone-catalyzed oxidation and biodegradation (OCB) method was used to treat OCC pulping wastewater in this study. A polyurethane sponge was used as the basic skeleton, loaded with nano TiO2 and microorganisms, respectively, and then put into a reactor. After an 8-min ozone-catalyzed oxidation reaction, a 10-h biological reaction was carried out. The process was effective in removing organic pollutants such as COD and BOD5 from OCC paper whitewater. The removal rates of COD and BOD5 were 81.5% and 85.1%, respectively. By using the polyurethane sponge to construct a microenvironment suitable for microbial growth and metabolism, this study successfully applied and optimized engineered bacteria—white rut fungi (WRF)—in the system to achieve practical degradation of OCC pulping wastewater. Meanwhile, the biocompatibility of different microbial communities on the polyurethane sponge was analyzed by examining the degradation performance of OCC pulping wastewater. The structure of microbial communities loaded on the polyurethane sponge was analyzed to understand the degradation mechanism and microbial reaction behavior. White-rot fungi (Phanerochaete) contributed more to the degradation of OCC wastewater, and new strains adapted to OCC wastewater degradation were generated. Full article
(This article belongs to the Special Issue Advances in the Preparation, Properties and Application of Polyurethane, Cellulose and Their Composites (2nd Edition))
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18 pages, 7491 KiB  
Article
Tribological Performance and Enhancing Mechanism of 3D Printed PEEK Coated with In Situ ZIF-8 Nanomaterial
by Xinchao Wang, Jiale Hu, Jiajia Liu, Yixin Liang, Lan Wu, Tie Geng, Shihua Liu and Yonggang Guo
Polymers 2024, 16(8), 1150; https://doi.org/10.3390/polym16081150 - 19 Apr 2024
Viewed by 389
Abstract
Polyether ether ketone (PEEK) is esteemed as a high-performance engineering polymer renowned for its exceptional mechanical properties and thermal stability. Nonetheless, the majority of polymer-based lubricating materials fail to meet the contemporary industrial demands for motion components regarding high speed, heavy loading, temperature [...] Read more.
Polyether ether ketone (PEEK) is esteemed as a high-performance engineering polymer renowned for its exceptional mechanical properties and thermal stability. Nonetheless, the majority of polymer-based lubricating materials fail to meet the contemporary industrial demands for motion components regarding high speed, heavy loading, temperature resistance, and precise control. Utilizing 3D printing technology to design and fabricate intricately structured components, developing high-performance polymer self-lubricating materials becomes imperative to fulfill the stringent operational requirements of motion mechanisms. This study introduces a novel approach employing 3D printing technology to produce PEEK with varying filling densities and conducting in situ synthesis of zeolitic imidazolate framework (ZIF-8) nanomaterials on its surface to enhance PEEK’s frictional performance. The research discusses the synthetic methodology, characterization techniques, and tribological performance evaluation of in situ synthesized ZIF-8 nanomaterials on PEEK surfaces. The findings demonstrate a significant enhancement in frictional performance of the composite material under low-load conditions, achieving a minimum wear rate of 4.68 × 10−6 mm3/N·m compared to the non-grafted PEEK material’s wear rate of 1.091 × 10−5 mm3/N·m, an approximately 1.3 times improvement. Detailed characterization and analysis of the worn surface of the steel ring unveil the lubrication mechanism of the ZIF-8 nanoparticles, thereby presenting new prospects for the diversified applications of PEEK. Full article
(This article belongs to the Special Issue Advances in the Preparation, Properties and Application of Polyurethane, Cellulose and Their Composites (2nd Edition))
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