Remon Lapisa^1,2, Anna Niska Fauza^1,*, Dieter Rahmadiawan^1,3, Krismadinata², Dori Yuvenda^1,2, Randi Purnama Putra^1,2, Waskito¹, Nandy Putra⁴, Hairul Abral⁵

Journal of Renewable Materials, Vol.12, No.9, pp. 1593-1603, 2024, DOI:10.32604/jrm.2024.053651 - 25 September 2024

Abstract Cellulose-based film has gained popularity as an alternative to synthetic polymers due to its outstanding properties. Among all types of cellulose materials available, cellulose nanofiber (CNF) has great potential to be utilized in a diverse range of applications, including as a film material. In this study, CNF biocomposite film was prepared by using polyvinyl alcohol (PVA) as a matrix and Uncaria gambir extract as a filler. This study aims to investigate the effect of Uncaria gambir extract on the optical properties and thermal stability of the produced film. The formation of the CNF biocomposite films was confirmed… More >

M. F. Elkady^1,2,*, E. M. El-Sayed², Mahmoud Samy³, Omneya A. Koriem¹, H. Shokry Hassan^4,5

Journal of Renewable Materials, Vol.12, No.2, pp. 369-380, 2024, DOI:10.32604/jrm.2023.046585 - 11 March 2024

Abstract In this study, green zinc oxide (ZnO)/polypyrrole (Ppy)/cellulose acetate (CA) film has been synthesized via solvent casting. This film was used as supporting material for glucose oxidase (GOx) to sensitize a glucose biosensor. ZnO nanoparticles have been prepared via the green route using olive leaves extract as a reductant. ZnO/Ppy nanocomposite has been synthesized by a simple in-situ chemical oxidative polymerization of pyrrole (Py) monomer using ferric chloride (FeCl₃) as an oxidizing agent. The produced materials and the composite films were characterized using X-ray diffraction analysis (XRD), scanning electron microscope (SEM), Fourier transform infrared (FTIR) and… More > Graphic Abstract

Shuang Zhao¹, Shenglan Chen², Shuan Ren¹, Gang Li³, Ke Song^1,4, Jie Guo^1,4, Shima Liu^1,4, Jian He^1,4, Xianwu Zhou^1,4,*

Journal of Renewable Materials, Vol.11, No.6, pp. 2531-2553, 2023, DOI:10.32604/jrm.2023.026066 - 27 April 2023

Abstract Petroleum-based materials, such as plastic, are characterized by adverse environmental pollution; as a result, researchers have sought alternative degradable plastics that are environmentally friendly, such as polylactic acid (PLA). PLA has shown great potential to replace petroleum-based plastics. In this study, seven different samples of unmodified Pueraria lobata root powder (PRP) with different contents (i.e., 0, 5, 10, 15, 20, 25, and 30 wt%) and three different modified PRPs (i.e., treated with NaOH, NaOH-KH-550, and Formic) were used to reinforce polylactic acid (PLA) via solution casting process. These prepared PRP/PLA composite films were characterized using SEM,… More > Graphic Abstract

Ruyu Yan^1,2,3,4, Jian Fang^1,*, Xiaohua Yang^2,3,4,5,6, Na Yao^2,3,4,5,6, Mei Li^2,3,4,5,6, Yuan Nie^2,3,4,5,6, Tianxiang Deng^2,3,4,5,6, Haiyang Ding^2,3,4,5,6, Lina Xu^2,3,4,5,6, Shouhai Li^2,3,4,5,6,*

Journal of Renewable Materials, Vol.11, No.4, pp. 1937-1950, 2023, DOI:10.32604/jrm.2023.025126 - 01 December 2022

Abstract Ethyl cellulose (EC), an important biomass-based material, has excellent film-forming properties. Nevertheless, the high interchain hydrogen bond interaction leads to a high glass transition temperature of EC, which makes it too brittle to be used widely. The hydroxyl group on EC can form a supramolecular system in the form of a non-covalent bond with an effective plasticizer. In this study, an important vegetable-oil-based derivative named dimer fatty acid was used to prepare a novel special plasticizer for EC. Dimer-fatty-acid-based thioether polyol (DATP) was synthesized and used to modify ethyl cellulose films. The supramolecular composite films… More > Graphic Abstract

R. VENKATESAN^*, S. R. DARSON IMMANUEL JOHN, N. RAJESWARI

Journal of Polymer Materials, Vol.36, No.3, pp. 261-273, 2019, DOI:10.32381/JPM.2019.36.03.6

Abstract Nanocomposite films of chitosan (CH) incorporated with different wt. % of the polyoligomericsilsesquioxane (POSS) were prepared by solution casting. The thermal, mechanical, morphological and antimicrobial properties of the nanocomposites were examined. TGA analyses of the nanocomposites indicate that the filler enables the enhancement of thermal stability of chitosan. The tensile strength of the nanocomposite films is enhanced (10.9 MPa for neat chitosan to 24.0MPa for 5wt. % filled chitosan) by the addition of POSS while the elongation at break is reduced. The nanocomposite films exhibited excellent antimicrobial activity against both gram positive and gram negative More >

Fatma Kharrat¹, Rania Chaari¹, Mohamed Khlif¹, Loic Hilliou², José A. Covas², Mohamed Haboussi^3,*, Hedi Nouri¹, Chedly Bradai¹

Journal of Renewable Materials, Vol.7, No.9, pp. 891-901, 2019, DOI:10.32604/jrm.2019.06827

Abstract Biocomposite films prepared with melt compounding and film blowing have become a new trend in plastic research to deliver more eco-friendly packages. Polylactic acid (PLA) was melt compounded with minimally processed date palm leaf fiber (DPLF) and converted into films by blown film extrusion. The compounding was done in order to enhance the film mechanical properties in one hand, and to decrease the film production cost in the other hand. In this present study, a reference PLA film and films with 1%, 2%, and 5% of DPLF (weight %) were produced with different process parameters.… More >

Galia Moreno, Karla Ramirez, Marianelly Esquivel, Guillermo Jimenez*

Journal of Renewable Materials, Vol.7, No.1, pp. 9-20, 2019, DOI:10.32604/jrm.2019.00017

Abstract Poly(lactic acid) (PLA) composite films reinforced with microcrystalline cellulose (MCC) extracted from pineapple leaf fibers (PALF) were prepared by a solution casting procedure. In an attempt to improve the interaction between PLA and cellulose, two approaches were adopted; first, poly(ethylene glycol) (PEG) was used as a surfactant, and second, the cellulosic fibers were pre-treated using tert-butanol (TBA). Lignocellulosic and cellulosic substrates were characterized using Fourier transform infrared (FTIR), wide-angle X-ray scattering (WAXS), and thermogravimetrical analysis (TGA). MCC from PALF showed good thermal stability, left few residues after decomposing, and exhibited high crystallinity index. Mechanical, thermal More >