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Natural Rubber: Withstanding Challenges of Sustainable Materials

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Chemical Engineering and Technology".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 3243

Special Issue Editors


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Guest Editor
Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla 90112, Thailand
Interests: applications of natural polymer in pharmaceutical technology, formulation development in pharmaceutical, drug delivery systems
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Guest Editor
Department of Pharmaceutical Chemistry, Rangsit University, Pathumthani, Thailand
Interests: polymer science; polymer synthesis; transdermal and topical delivery systems; drug delivery systems; cosmeceutical

Special Issue Information

Dear Colleagues,

Nowadays, quality of life is considered in every aspect around us. Polymers are essential materials for use in various aspects of daily life. Both synthetic, semisynthetic, and natural polymers are used in various products. However, the concepts of saving the world and green technology bring the popularity of using natural ingredients even more. From these issues, natural rubber is another interesting raw material used in various fields. It is a natural polymer derived from various plants, especially the major commercial source from Hevea braziliensis. The other sources of rubber are from Congo rubber (Landolphia spp.), Panama rubber (Castilla elastica), gutta-percha (Palaquium gutta), guayule (Parthenium argentatum), rubber fig (Ficus elastica), various dandelion (Taraxacum spp.), spurges (Euphorbia spp.), and lettuce (Lactuca spp.).

The major composition of natural rubber polymer is isoprene monomers, with minor impurities such as proteins, fatty acids, resins, and other inorganic materials. This polymer exhibits exclusive physical and chemical properties, especially in high elasticity. It has been used in many applications, such as transportation, packaging, agriculture, medical, and household used products. Some of its properties have been improved to suit different application areas.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Synthesis, blend, and composite modifications of natural rubber
  • Physical, chemical, and other properties of natural rubber and its modification polymer
  • Safety of natural rubber and its improvement materials
  • Applications of natural rubber in all fields
  • Novel processes and/or techniques for either natural rubber modification or products manufacturing
  • Economic study of natural rubber and its products

We look forward to receiving your contributions.

Dr. Wiwat Pichayakorn
Dr. Jirapornchai Suksaeree
Guest Editors

Manuscript Submission Information

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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. Sustainability 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 2400 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

  • natural rubber
  • blends
  • composite
  • interpenetrating polymer network
  • vulcanization
  • mechanical properties
  • safety
  • application
  • manufacturing process
  • economic

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Published Papers (1 paper)

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Research

20 pages, 1788 KiB  
Article
Deproteinization of Natural Rubber Latex and Its Pale-Colored Thin Films
by Jirapornchai Suksaeree, Chanin Bumroongrat, Nantanat Polraksa, Wirach Taweepreda, Thawatchai Phaechamud and Wiwat Pichayakorn
Sustainability 2023, 15(13), 10015; https://doi.org/10.3390/su151310015 - 24 Jun 2023
Cited by 2 | Viewed by 2501
Abstract
The non-rubber components present in natural rubber latex can contribute to the dark color of dried films and may cause allergic reactions. This project aimed to develop light-color rubber films with minimal protein contamination. Various additives were incorporated, and a leaching procedure was [...] Read more.
The non-rubber components present in natural rubber latex can contribute to the dark color of dried films and may cause allergic reactions. This project aimed to develop light-color rubber films with minimal protein contamination. Various additives were incorporated, and a leaching procedure was implemented to address this issue. The evaluation focused on protein content, color changes, and swelling properties of thin natural rubber films. Texapon N70 proved effective as both a latex stabilizer and leaching agent, while Uniphen P-23 served as a preservative. The combined use of these additives facilitated the removal of soluble serum through appropriate incubation, leaching, and centrifugation processes. The introduction of additional centrifugation cycles improved deproteinization and color reduction; however, it led to a loss of rubber mass and an increase in manufacturing costs. Increasing the amount of Texapon N70 and introducing alkali potassium hydroxide (KOH) further enhanced the efficiency of deproteinization and color reduction. The optimal conditions determined in this investigation were as follows: 0.5% w/w Texapon N70, 0.5% w/w KOH, 1% w/w Uniphen P-23, a 60-min incubation period, and a single leaching cycle with distilled water. These conditions resulted in a 90.57 ± 1.20% decrease in protein contamination and a color change (ΔE) of 433.69 ± 20.23. This successful condition can be replicated and scaled up for further applications. Full article
(This article belongs to the Special Issue Natural Rubber: Withstanding Challenges of Sustainable Materials)
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