JPM Editorial Office

Journal of Polymer Materials, Vol.41, No.3, pp. 205-205, 2024, DOI:10.32604/jpm.2024.058921 - 30 September 2024

Abstract This article has no abstract. More >

Santhanakrishnan Mamallan¹, Venkateshwaran Narayanan^1,*, Canungo Bhimarao Ragothaman²

Journal of Polymer Materials, Vol.41, No.3, pp. 105-116, 2024, DOI:10.32604/jpm.2024.056744 - 30 September 2024

Abstract Glass fabric/polymer composites are widely used in various industrial applications due to their lightweight, exceptional strength, and fatigue resistance. Graphene nanoplatelets, a recently developed type of carbon material, stand out as unique nanofillers due to their 2D quantum confinement and expansive surface area within a polymer matrix. These features make them more effective than traditional carbon nanofillers at enhancing a range of properties. In this study, 3-weight % of graphene nanoplatelets with epoxy resin were used for investigation by varying sonication durations (0, 20, 40, and 60 min) using an ultrasonic bath sonicator. The laminates More >

Rachid Bouregba^1,2, Bel Abbes Bachir Bouiadjra^2,*, Mohamed Mokhtar Bouziane³, Mohamed Amine Bellali², Mokadem Salem²

Journal of Polymer Materials, Vol.41, No.3, pp. 143-158, 2024, DOI:10.32604/jpm.2024.056385 - 30 September 2024

Abstract The use of polypropylene composites in various industrial fields has expanded considerably in recent years. A number of researches have been carried out to characterize the performance of polypropylene and its composites. However, the effects of ageing on the long-term behaviour of this thermoplastic are not well understood. The purpose of this study is to analyse the consequences of thermal degradation on the thermal and mechanical properties of three distinct materials: virgin Polypropylene (PP), virgin Polypropylene + talc (PP/talc), and virgin Polypropylene + Carbon Black (PP/CB) micro-composites. Specimens of these materials underwent exposure in an… More >

Ravikumar Karthikeyan, Subbiah Rajkumar^*, Balasundaram Ravi

Journal of Polymer Materials, Vol.41, No.3, pp. 131-141, 2024, DOI:10.32604/jpm.2024.055989 - 30 September 2024

Abstract In this study, the Polyamide-12 (PA-12) powdered material in the Selective Laser Sintering (SLS) process has been incorporated as the filler in the composite material to enhance its properties. The PA-12 powder has been made into a form of filament and is primarily used in the Fused Deposition Modelling (FDM) process. The PA-12 has been used with epoxy resin and glass fiber with different proportions. The characterization of materials, including the validation of the presence of PA-12 filler with epoxy, has been evidenced using Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), and Thermogravimetric More >

Yusuf Olanrewaju Busari^1,2,*, Issah Sadiq Ibrahim¹, Kabir S. Ajao¹, Norliana Mohd Abbas², James Obafemi Adegbola¹, Hassan Kobe Ibrahim³, Abdallah Reghioua⁴, Yusuf Lanre Shuaib-Babata¹, Rachael Oluwatoyosi Idowu¹

Journal of Polymer Materials, Vol.41, No.3, pp. 117-129, 2024, DOI:10.32604/jpm.2024.055895 - 30 September 2024

Abstract The research paper focuses on manufacturing composite materials from waste polyethylene terephthalate (PET) reinforced with soda-lime glass to provide a lightweight, less brittle, and high rust resistance when exposed to hazardous environment. In developing nations such as Nigeria, there is a significant surge in the volume of bottled water and other packaging materials used in households, leading to a rapid accumulation of biodegradable waste, that presents concerns such as the creation of landfills and health issues. PET are thermoplastic polymer that can be melted and shaped into various objects. This study involves the incorporation of… More >

Anuraag Moturi, Dharmesh R. Chejara^*

Journal of Polymer Materials, Vol.41, No.3, pp. 179-190, 2024, DOI:10.32604/jpm.2024.055887 - 30 September 2024

Abstract A chitosan and guar protein isolate blend conjugate (Ch/GPI-Glu) based membrane has been designed and studied for its possible interaction with this biopolymer mixture. The designed conjugate chitosan/guar protein isolate blended membrane was investigated for its structural features using Fourier Transform Infrared Spectroscopy (FTIR), Thermal Gravimetric Analysis (TGA), X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) analyses. IR Spectroscopic data suggested that chitosan and guar protein isolate contributed to a specific intermolecular interaction. The designed membrane was water-insoluble and it exhibited strong polymer–protein interaction. Further, the membrane was also found to have a smooth morphology More >

Manivasagam Vishwa Rohini^1,#, Sathish Kiruba¹, Danniel Santhanaraj¹, Prakash Priyanka Nair¹, P. Sudhakara^2,*, Jujhar Singh³, Balamurugan Rathinam^4,*, Vanaraj Ramkumar^5,6,#

Journal of Polymer Materials, Vol.41, No.3, pp. 159-178, 2024, DOI:10.32604/jpm.2024.054801 - 30 September 2024

Abstract The Cavendish banana, Musa acuminata, is a climacteric fruit that ripens quickly after harvest. Due to their high perishability and susceptibility to disease, bananas have substantial postharvest losses. After harvesting, it is important to extend the bananas’ shelf life. Unique coating gel solutions based on glycerol and ascorbic acid were developed to accomplish this. Chitosan mixed with glacial acetic acid, lactic acid, and sodium alginate were among the gel solutions in these combinations. The goal was to improve banana preservation while maintaining freshness and quality by implementing innovative formulations and techniques. The fruits are hand-dried and… More >

Abderrahim Boutasknit^1,2,3, Mohamed Anli³, Rachid Lahlali^4,*, Abdelilah Meddich^2,3,5,*

Phyton-International Journal of Experimental Botany, Vol.93, No.9, pp. 2227-2249, 2024, DOI:10.32604/phyton.2024.055629 - 30 September 2024

Abstract Applying organic waste and inorganic additives during composting can be an effective and easy-to-control strategy for optimizing humification, maturation, and the availability of essential mineral elements in compost. In this respect, this study aims to evaluate the effect of organic (olive-mill waste and horse manure) and inorganic (phosphogypsum) additives on the evolution of maturity indices, aromatic compounds, and nutrient availability during composting. Four mixtures [horse manure + green waste (M1), olive-mill + green waste (M2), sewage-sludge + phos-phogypsum + green waste (M3), and green waste (M4)] were carried out. Physicochemical (temperature, pH, phosphorus, nitrogen, and… More >

Abdelghafour Doghbage^1,*, Safia Belhadj², Hassen Boukerker³, Jean Philippe Mevy⁴, Thierry Gauquelin⁴, Alain Tonetto⁵, Benbader Habib^1,6, Arezki Derridj⁷, Zahra Robã Bouabdelli¹, Walid Soufan⁸, Fathi Abdellatif Belhouadjeb¹

Phyton-International Journal of Experimental Botany, Vol.93, No.9, pp. 2383-2413, 2024, DOI:10.32604/phyton.2024.055528 - 30 September 2024

Abstract The Atlas pistachio tree is a typically Mediterranean species, which represents an important forest heritage in the arid and semi-arid regions of Algeria. It is deeply rooted in the local population’s culture, making it essential to better understand this species for its conservation and valorization. Through our work on 7 provenances of Pistacia atlantica distributed across different bioclimates in Algeria and based on 28 quantitative and qualitative leaf, trichome, and stomatal traits, it was revealed that the Atlas pistachio tree exhibits significant ecotypic variability linked to its habitat and a high adaptability to extreme conditions in… More >

Jun Yuan¹, Rongpeng Liu⁴, Xiaoyun Wang^3,*, Haihui Fu^2,*

Phyton-International Journal of Experimental Botany, Vol.93, No.9, pp. 2267-2284, 2024, DOI:10.32604/phyton.2024.055338 - 30 September 2024

Abstract Cadmium (Cd) has seriously affected the quality of traditional Chinese medicinal material Salvia miltiorrhiza in recent years, threatening human health. The physiological and metabolic profiles of S. miltiorrhiza in response to Cd stress have been revealed in previous studies. However, transcriptional and post-transcriptional regulation in response to different degrees of Cd (0, 25, 50, and 100 mg/kg) stress in S. miltiorrhiza remains unclear. Here, transcriptome atlas in S. miltiorrhiza under different degrees of Cd Stress was unveiled using RNA sequencing (RNA-seq). These results showed that the profiles of gene expression were different in the response to Cd treatment. Defense More >