Special Issue "Recent Developments on Biobased Materials and Composites"

Submission Deadline: 31 July 2019 (closed)
Guest Editors
Hamid Kaddami, Professor, Cadi Ayyad University, Morocco
Sami Boufi, Professor, University of Sfax-Tunisia
Alain Dufresne, Professor, The International School of Paper, Print Media and Biomaterials (Pagora) at Grenoble Institute of Technology, Grenoble, France

Summary

This special issue of Journal of Renewable Materials contains the contributions of authors at the fifth edition of International Conference on Biobased Materials and Composites (ICBMC 19), held in Monastir, Tunisia. This conference is one of the most successful scientific events in the field of biobased materials and composites. The goal of the ICBMC conference series is to foster understanding, scientific and technical progress, and recent knowledge in the field of natural polymers extraction, biopolymers, biomaterials and their blends, composites, biobased materials for energy conversion and IPNs. The conference was attended by many participants from more than 15 countries all over the word: Chemists, Physicists, Biologists, Technologists, Doctors and Engineers. This conference was the opportunity for providing a discussion forum for the worldwide community of scientists and engineers in the field of bio-based materials and composites. Many contributions from interdisciplinary research were presented on processing, morphology, structure and properties of natural polymers, biomaterials, biopolymers, their blends, composites, IPNS and gels from macro to nano scales and their various applications. Contributions on biocomposites, bionanocomposites, valorisation of natural products were numerous and their scientific quality was qualified as very good by the scientific committee of ICBMC conference. In this special issue, papers on topical contribution in the field of self assembled biomaterials and nanocomposites, Biomaterials supported catalysts, Natural polymers based aerogels, Biosourced polyesters, etc. are submitted.


Keywords
Biocomposites, Bionanocomposites, Valorisation of Natural Products, Self Assembled Biomaterials and Nanocomposites, Biomaterials Supported Catalysts, Biobased Aerogels, Biosourced Polyesters.

Published Papers
  • Recent Trends in Preparation and Applications of Biodegradable Polymer Composites
  • Abstract This review efficiently covers the research progress in the area of polymer bio composites in perspective of the modern-day renewable materials. In the last decade, attraction towards the bio-composite based systems has been the topic of interest due to their potential as a substitute of conventional materials produced in important manufacturing industries. Recently, preparation of biocompatible and biodegradable polymer composites is an important achievement as an alternative of petrochemical based renewable products. Successful production of eco-friendly bio-composite materials have been achieved with natural fibers viz jute, bamboo, hair, flex, wool, silk and many others instead of synthesized fibers like carbon,… More
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  • Influence of Aspect Ratio on Rolling Shear Properties of Fast-Grown Small Diameter Eucalyptus Lumber
  • Abstract Eucalyptus is a major fast-grown species in South China, which has the potential for producing structural wood products such as cross-laminated timber (CLT). Aspect ratio (board width vs. board thickness) of eucalyptus lumbers is small due to the small diameter of fast-grown eucalyptus wood. To evaluate its rolling shear modulus and strength for potential CLT applications, three-layer hybrid CLT shear block specimens with different aspect ratios (2,4,6), were tested by planar shear test method. Digital image correlation (DIC) was employed to measure the rolling shear strain distribution and development during the planar shear tests. The mean values of rolling shear… More
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  • Sustainable Utilization of Agricultural Straw for Harmful Algal Blooms Control: A Review
  • Abstract The use of agricultural straw for algal bloom control has been studied for more than 30 years. In this article, we have reviewed the promising potentials of using agricultural straw as source of anti-algal agents, including the effectiveness of each major straw type so far used in this regard, and the investigated algal species. Various pre-treatment methods have also been widely reviewed. Signifi- cant progress has been made in natural product chemistry and molecular biology with regards to agricultural straw, especially in relation to the extraction of antialgal allelochemicals, degradation processes of agricultural straws and the mechanisms through which these… More
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  • Ultrasound Assisted Synthesis of Starch Nanocrystals and It’s Applications with Polyurethane for Packaging Film
  • Abstract Starch nanocrystals (SNC) were prepared from maize starch using ultrasound assisted acid hydrolysis. The process takes less time for the generation of SNC, which is advantageous over conventional acid hydrolysis. The synthesized SNC were characterized using X-ray diffraction, dynamic light scattering, zeta potential and transmission electron microscopy (TEM). Particle size and TEM data show that the particles were near to 150 nm, with oval morphology. The SNC with higher surface charge are obtained with this innovative approach as compared to conventional acid hydrolysis. Because of high surface charge and oval like morphology, the SNC performed well in reinforcing a polyurethane… More
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  • Value-Added Utilization of Agro-Waste Derived Oil Palm Ash in Epoxy Composites
  • Abstract Oil palm ash (OPA) is an agro-industry waste and it has disposable problems. In the present study, an effort was made for value addition to OPA by incorporating it as a micro-filler in different concentration (0, 10, 20, 30, 40, and 50%) and sizes (100, 200, and 300 mesh size particles) in the epoxy matrix. Prepared micro OPA was having a crystallinity index of 65.4%, high inorganic elements, and smooth surface morphology. Fabricated composites had higher void content as compared to neat epoxy matrix. Mechanical properties of fabricated composites had a maximum value at 30% loading of 300 mesh-size filler… More
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  • Electrochemical Performance of Starch-Polyaniline Nanocomposites Synthesized By Sonochemical Process Intensification
  • Abstract The present study deals with the intensified synthesis of starchpolyaniline (starch-PANI) nanocomposite using an ultrasound-assisted method. Starch is a key component in this nanocomposite, which acts as a backbone of the nucleation of PANI. The Electrochemical property of the nanocomposite arises due to the addition of PANI. This is one of green approach for the synthesis of bio nanocomposite using ultrasound. The crystallinity of the composite is evaluated using the Scherrer Formula. The starch-PANI nanocomposite was characterized by XRD, FT-IR, Raman, XPS and TEM. The composite nanoparticles show spherical morphology. The elemental composition of starch-PANI showed O 1s peak at… More
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  • Fragrant Microcapsules Based on β-Cyclodextrin for Cosmetotextile Application
  • Abstract Microencapsulation of neroline inside microcapsules having a polyurethane shell based on β-cyclodextrin (β-CD) and hexane diisocyanate was performed by interfacial polycondensation. The polyol nature of β-CD caused tight crosslinking of microcapsules wall. Microcapsules of neroline were characterized for their chemical composition and structure of the polyurethane shell by FTIR spectroscopy, thermogravimetric analysis, optical and electron microscopy, light scattering and electrophoresis measurements. Core content and encapsulation yield were 15% and 60%, respectively. Spherical microcapsules of mean diameter 29 μm were slightly cationic with an isoelectric point of 6.3. Neroline-loaded microcapsules were fixed on cotton fabric using an impregnation technique. The functionalized… More
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  • Influence of Xyloglucan Molar Mass on Rheological Properties of Cellulose Nanocrystal/Xyloglucan Hydrogels
  • Abstract Plant components are an inexhaustible source for the construction of bio-based materials. Here we report, for the first time, the elaboration of biobased cellulose nanocrystals (CNC)/xyloglucan (XG) hydrogels. XG is a hemicellulose displaying a great affinity for cellulose surface and can be thus irreversibly adsorbed on CNC. Properties of the hydrogels were investigated by varying the molar mass of XG either by enzymatic treatment with Endoglucanase (EG2) or physical fractionation by ultrasound (US). Fractions were characterised by high-performance size exclusion chromatography (HPSEC) and their monosacchari decompositions were determined. Three fractions with high, average and small molar mass, (800, 300 and… More
  •   Views:847       Downloads:438        Download PDF