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Polymers
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Properties, Structure and Environmental Impact of Organic and Inorganic Polymer...
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Properties, Structure and Environmental Impact of Organic and Inorganic Polymer Composites

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

Deadline for manuscript submissions: closed (5 September 2023) | Viewed by 6369

Special Issue Editors

Dr. Haci Baykara

E-Mail Website
Guest Editor
Facultad de Ingeniería Mecánica y Ciencias de la Producción, Escuela Superior Politecnica del Litoral, Guayaquil, Ecuador
Interests: polymer synthesis; life-cycle assessment; fiber-reinforced composites; biomaterials; geopolymers
Prof. Dr. Joaquín L. Brito

E-Mail Website
Guest Editor
Biomass to Resources Group, Universidad Regional Amazónica IKIAM, Tena, Ecuador
Interests: heterogeneous catalysis; surface physicochemistry; materials physicochemistry; oil hydrotreatment

Special Issue Information

Dear Colleagues,

There are many applications of polymeric composites due to their durability, variety of functionalities, and properties. The properties of these composites are mostly based on the type and size of additive material in the polymer matrix. The mechanical, chemical, and physical properties of the composites are exclusively related to filler–matrix interaction. Therefore, some plasticizers, compatibilizers, and coupling agents might be needed in order to improve such filler–matrix interaction and enhance the desired properties. There are many different polymers and fillers with a variety of functional groups that can be used to prepare a tremendous number of different composites. For this purpose, natural fibers; conductive, inorganic, and organic nanoparticles; carbon nanotubes; graphite; clay; and graphene can be mentioned as the most common fillers used in composite preparation. The matrix of a composite can be either degradable or nondegradable organic or inorganic polymers. On the other hand, the environmental impact of plastics and composites is now one of the concerns that should be taken into account. Therefore, the life cycle assessment of composites is also covered in this Special Issue.

Dr. Haci Baykara
Prof. Dr. Joaquín L. Brito 
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

  • organic and inorganic
  • polymer composites
  • properties
  • structure
  • environmental impact

Published Papers (2 papers)

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Research

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13 pages, 2821 KiB  
Article
Glutaraldehyde Crosslinked High Content of Amylose/Polyvinyl Alcohol Blend Films with Potent Tensile Strength and Young’s Modulus
by Xinqing Wang, Zhenhua Huang, Zhaoyang Niu, Fangping Chen and Changsheng Liu
Polymers 2022, 14(24), 5550; https://doi.org/10.3390/polym14245550 - 19 Dec 2022
Cited by 4 | Viewed by 2405
Abstract
In recent years, with the development of green environmental protection, starch film has become of interest due to the wide availability of sources, low price, and biodegradability. Amylose/polyvinyl alcohol (PVA) blend films crosslinked with different amounts of glutaraldehyde (GLU) were prepared by a [...] Read more.
In recent years, with the development of green environmental protection, starch film has become of interest due to the wide availability of sources, low price, and biodegradability. Amylose/polyvinyl alcohol (PVA) blend films crosslinked with different amounts of glutaraldehyde (GLU) were prepared by a solution casting method. The cross-linking degree, water sorption, tensile property, crystallization and section morphology of the films were examined. With the increase in glutaraldehyde concentration, the cross-linking degree of the blend film was improved. The wide-angle X-ray scattering (WAXS) result indicated that cross-linking hindered the crystallization of film. The section morphology of films was examined by scanning electron microscope (SEM). The results showed that the cross-linking degree of amylose film improved while the crystallinity decreased with the increase in glutaraldehyde content. Cross-linking had no obvious effect on the water sorption property of the blend films. The cross-linking modification significantly enhanced the tensile strength and Young’s modulus, while it reduced the elongation at break of the blend films. It was found that the film with 0.5 wt % glutaraldehyde possessed the best performance: the tensile strength increased by 115%, while the elongation at break decreased by 18% even at high relative humidity (RH) of 90% compared to non-crosslinked films. The developed amylose/PVA blend films have promising application prospects as agricultural mulch films and packaging materials. Full article
(This article belongs to the Special Issue Properties, Structure and Environmental Impact of Organic and Inorganic Polymer Composites)
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Review

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36 pages, 1801 KiB  
Review
Processing, Properties, Modifications, and Environmental Impact of Nanocellulose/Biopolymer Composites: A Review
by Elizabeth Aigaje, Ariel Riofrio and Haci Baykara
Polymers 2023, 15(5), 1219; https://doi.org/10.3390/polym15051219 - 28 Feb 2023
Cited by 7 | Viewed by 3225
Abstract
The increasing concerns about plastic pollution and climate change have encouraged research into bioderived and biodegradable materials. Much attention has been focused on nanocellulose due to its abundance, biodegradability, and excellent mechanical properties. Nanocellulose-based biocomposites are a viable option to fabricate functional and [...] Read more.
The increasing concerns about plastic pollution and climate change have encouraged research into bioderived and biodegradable materials. Much attention has been focused on nanocellulose due to its abundance, biodegradability, and excellent mechanical properties. Nanocellulose-based biocomposites are a viable option to fabricate functional and sustainable materials for important engineering applications. This review addresses the most recent advances in composites, with a particular focus on biopolymer matrices such as starch, chitosan, polylactic acid, and polyvinyl alcohol. Additionally, the effects of the processing methods, the influence of additives, and the outturn of nanocellulose surface modification on the biocomposite’s properties are outlined in detail. Moreover, the change in the composites’ morphological, mechanical, and other physiochemical properties due to reinforcement loading is reviewed. Further, mechanical strength, thermal resistance, and the oxygen–water vapor barrier properties are enhanced with the incorporation of nanocellulose into biopolymer matrices. Furthermore, the life cycle assessment of nanocellulose and composites were considered to analyze their environmental profile. The sustainability of this alternative material is compared through different preparation routes and options. Full article
(This article belongs to the Special Issue Properties, Structure and Environmental Impact of Organic and Inorganic Polymer Composites)
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