Irina N. Vikhareva^*

Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02026-0042 - 26 August 2026

Abstract The development of efficient and migration-resistant plasticizers from renewable resources is an important challenge for the modern polymer industry. This work presents a thermodynamic approach for the rapid screening of novel bio-based plasticizers-esters of dicarboxylic acids. Using differential scanning calorimetry (DSC), the temperatures and enthalpies of melting and crystallization of the individual esters were determined, and the hysteresis of phase transition parameters was calculated as a predictive indicator. It is shown that bio-based butoxyethyl esters are characterized by low temperature hysteresis ΔT ~ 20°C and enthalpy hysteresis close to zero, indicating weak intermolecular interactions and… More > Graphic Abstract

Guilherme José Aguilar, Larissa Rodrigues Beitum, Ana Laura Garcia, Delia Rita Tapia-Blácido^*

Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02026-0029 - 26 August 2026

Abstract The search for sustainable alternatives to expanded polystyrene (EPS) has led to the development of starch-based foams reinforced with agro-industrial by-product. This study aimed to evaluate the effect of sugarcane bagasse ash (SBA) content on the physical, mechanical, and water-interaction properties of cassava starch foam trays, and to determine the maximum feasible ash content that could be incorporated. Sugarcane bagasse ash was collected from the boiler air preheater. Foam trays were prepared by thermopressing using cassava starch, guar gum, magnesium stearate, glycerol, and SBA at 0%, 2%, 5%, 8%, and 11%. The trays were characterized… More > Graphic Abstract

Nurhasnah¹, Naresworo Nugroho^1,*, Sarah Augustina^2,*, Silvia Uthari Nuzaverra Mayang Mangurai³, Deazy Rachmi Trisatya^1,2

Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02026-0027 - 26 August 2026

Abstract Randu wood is a fast-growing wood species with a low density, ranging from 0.21 to 0.28 g/cm³. This limits the utilization of this species, particularly for structural purposes. Improving the quality and strength of wood can be done by applying a densification process. The effectiveness of this process may be improved by applying in-situ delignification using peracetic acid as a pretreatment. Therefore, this study aimed to analyze the physical (moisture content and density), dimensional stability (TR-ratios, water absorption, and thickness swelling), spring-back (compression set, and compression-set recovery) and mechanical properties (Modulus of Rupture/MOR and Modulus of… More > Graphic Abstract

Erman Taer^1,*, Novi Yanti¹, Asmarwati¹, Apriwandi¹, Abrar Ismardi², Indra Wahyudhin Fathona², Memoria Rosi², Bidayatul Armynah³, Dahlang Tahir³, Ninis Hadi Haryanti⁴, Suryajaya⁴, Isnasyauqiah⁵, Ida Usman⁶, Julnaidi⁷, Rika Taslim^8,*

Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02026-0022 - 26 August 2026

Abstract The promotion of bio-carbon for developing superior electrodes has become a trending topic in realising the practical application of supercapacitor devices. This study aimed to prepare porous carbon (PC) with a taproot fiber-like nanostructure that was decorated with self-doped oxygen. The waste of red suren leaves (RSL) was further treated using a direct heating method with the catalyst effect of ZnCl₂ (0.3, 0.5, and 0.7 M) in an N₂/CO₂ environment at 850°C, being examined. The results showed that RSL@PC-0.5 exhibited the best amorphous carbon structure (FWHM = 0.105° and 0.182°). The specific surface area (SSA =… More > Graphic Abstract

Huan Long¹, Emmanuel Abu-Danso^1,2,*, Mônica Rufino Senra^1,3, Leonid Ionov⁴, Jussi V. K. Kukkonen², Holger Ruckdäschel^1,5,*

Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02025-0198 - 26 August 2026

Abstract Polymeric scaffolds are now widely used in biomedical engineering to reconstruct tissues as well as other corrective medical applications. They are designed to promote the proliferation of the host cell and provide load-bearing capabilities. Through tailored fabrication methods and material compatibility, polymeric scaffolds can be applied either temporarily or permanently, and successful applications have resulted in commercialized products. Currently, there is a high interest in tissue scaffolds that combine both effective mechanical performance with efficient surface response functionalities. In this work, we performed an in-depth comparative analysis of tissue scaffolds made from renewable parent materials,… More > Graphic Abstract

Alexey E. Shkuro^1,*, Artyom V. Artyomov², Victor G. Buryndin², Anna S. Ershova², Tatyana V. Yakubova³

Journal of Renewable Materials, Vol.14, No.8, 2026, DOI:10.32604/jrm.2026.02025-0194 - 26 August 2026

Abstract Binder-free lignocellulosic boards and molded composites are gaining momentum as low-emission alternatives to conventional wood-based panels because they exploit intrinsic self-bonding of biomass under hot pressing. This review critically analyzes structure-formation pathways in binder-free composites, focusing on (i) thermo-mechanical softening and flow of lignin as a natural adhesive phase, (ii) auto-hydrolysis of hemicelluloses generating organic acids and reactive furanic intermediates, and (iii) subsequent condensation and crosslinking reactions that consolidate the network. We compare process routes historically associated with Masonite-type fiber processing and Lignoplast-type direct compaction, highlighting how moisture, temperature, pressure, sealing degree, and particle morphology More >

Antonio Pizzi^*

Journal of Renewable Materials, Vol.14, No.7, 2026, DOI:10.32604/jrm.2026.02026-0056 - 28 July 2026

Abstract Cross Polarization Magic Angle Spinning Carbon 13 Nuclear Magnetic Resonance (CP-MAS ¹³C NMR) analysis of commercial procyanidin (pine bark) and delphinidin (pecan nut membranes) condensed flavonoid tannin extracts reacted with hexamethylenetetramine (hexamine) have shown that due to the highly reactive imino-amino methylene species formed before its degradation reaches the generation of formaldehyde, benzylamine bridges between the flavonoid units are formed. This study shows that tannin-based biobenzoxazines are also generated at the same time, with both benzylamines and benzoxazines bridges being in more marked proportions, the more reactive the tannin reacted with hexamethylenetetramine is. This is not More > Graphic Abstract

Nathan Jourdainne^1,2, Mathilda Ekholm¹, Nawel Belkessa¹, Antonin Vignon¹, Nicolas Sbirrazzuoli¹, Christelle Combeaud², Jean-Luc Bouvard², Nathanael Guigo^1,2,*

Journal of Renewable Materials, Vol.14, No.7, 2026, DOI:10.32604/jrm.2026.02026-0040 - 28 July 2026

Abstract This study investigates the valorization of mussel shell waste as a bio-derived filler in poly(L-lactic acid) (PLLA) to promote sustainable materials aligned with circular economy principles. Mussel shells, a seafood industry byproduct rich in biogenic calcium carbonate, were ground into powder and incorporated into PLLA at 10–50 wt%. The resulting composites were thoroughly characterized using scanning electron microscopy and energy dispersive X-ray spectroscopy (SEM-EDX), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), and uniaxial tensile testing to assess morphological, chemical, thermal, and mechanical properties. Incorporation of… More > Graphic Abstract

Harmiansyah^1,2, Maisy Pitaloka Sinaga¹, Sheilla Ika Amalia¹, Salma Hanan Arwinda¹, Al Aqib Anugerah Ramadhan¹, Hervianna Indira Kusuma Riandara¹, Mohamad Haafiz Mohamad Kassim^3,4,5, Mohd Shahrieel Mohd Aras⁶, Melbi Mahardika^3,7,*

Journal of Renewable Materials, Vol.14, No.7, 2026, DOI:10.32604/jrm.2026.02026-0007 - 28 July 2026

Abstract The limited mechanical performance of starch-based bioplastic films, particularly their low strength and stiffness, remains a major challenge for their broader application as sustainable packaging materials. This study aims to address this issue by utilizing cellulose fibers extracted from oil palm empty fruit bunch (OPEFB) waste as a reinforcing agent in corn starch–based bioplastic films. The bioplastic films were fabricated using a solution casting method with varying cellulose contents and subsequently characterized to evaluate their mechanical properties, crystalline structure, and thermal stability. The results demonstrate that the incorporation of cellulose fibers significantly enhances the tensile… More >

Kelly Leite dos Santos Castro Assis¹, Druval Santos de Sá¹, Bruno da Silva Marques¹, Carolina Carvalho de Mello¹, João Lucas Marques Barros², Henrique Carvalhais Milanezi², João Batista Oliveira dos Santos², Carlos Alberto Franchini¹, Bráulio Soares Archanjo¹, Carlos Alberto Achete¹, Adriana Maria da Silva^1,*

Journal of Renewable Materials, Vol.14, No.7, 2026, DOI:10.32604/jrm.2026.02025-0233 - 28 July 2026

Abstract The transition toward a circular economy and zero-waste strategies has driven increasing interest in biomass-derived carbon materials as sustainable alternatives to conventional catalyst supports. Agricultural and industrial residues can be converted into porous carbons with high surface area, tunable porosity, and rich surface chemistry, enabling waste valorization and stabilization of metal species ranging from nanoparticles to single atoms. These properties support their application across heterogeneous catalysis, photocatalysis, and electrochemical systems, revealing cross-cutting opportunities among these fields. Despite these advantages, challenges remain, including feedstock heterogeneity, energy-intensive processing, scalability limitations, and the lack of standardized methodologies. This More > Graphic Abstract