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University of Bejaia: Recent submissions

Now showing items 1-20 of 21990

Optimization and Formulation of Mixed Niosome/Cyclodextrin Encapsulation Process for Béjaia Propolis Extract

FATMI, Sofiane; TOUTOU, Zahra; CHIBANI, Nacéra; LEZRAG, Hayet Ahlem; SKIBA, Mohamed; IGUEROUADA, Mokrane (University of Bejaia, 2024-07-15)

This study focuses on the preparation and optimization of a mixed cyclodextrin and niosomal suspension containing propolis extract from the Melbou region. The experimental design was utilized to determine the key parameters ...
Development and characterization of a new composite material based on polyvinyl chloride and common reed flour

Samia BENMESLI (University of Bejaia, 2024-07-20)

The objective of this work is to develop and characterize a composite material with a polyvinyl chloride matrix and filler of plant origin, common reed flour. The filler is obtained by grinding and sieving. The composites ...
Study of the properties of a hybrid composite thermoplastic matrix/vegetable fillers

BELLILI, Nadira; DAIRI, Badrina; RABEHI, Nadjia; LARKEM, Sara; DJIDJELLI, Hocine; BOUKERROU, Amar (University of Bejaia, 2024-07-19)

The study carried out in this work aimed to develop and characterize hybrid composites based on polychloride of vinyl reinforced with date stone flour (DSF) and starch with PVC%/DSF%/ starch % percentages: 80/0/0, 80/20/0, ...
Green composites: A review of materials and perception

Klaai, Lisa; Hammiche, Dalila (University of Bejaia, 2024-07-15)

The purpose of manufacturing a composite material is to take advantage of the recognized properties of each component in order to build one that will be better suited to certain applications. A composite is a material that ...
A Review of Composite Materials

Klaai, Lisa; Hammiche, Dalila (University of Bejaia, 2024-07-10)

Unlike conventional materials, composites have become an optimal option for a range of modern, industrial, clinical, and sports applications. This is combined with their noteworthy physical, thermal, electrical, and ...
Synthesis And Characterization Of Poly (Glycolic Acid) By Azeotropic Polycondensation

KERROUCHE, Djamila; SADOUN, Tahar; ROUBA, Nabila; MIMI, Nassiba; BENGHANEM, Nacera; BOURICHE, Siham (University of Bejaia, 2024-07-17)

Poly (glycolic acid) synthesis was achieved through azeotropic polycondensation of a Hydroxy acid (glycolic acid), in the presence of a catalyst (SnCl2, 2H2O) and an organic solvent, xylene, at a temperature of 170°C for ...
Study of the effect of MAPP rate on the morphology and thermal properties of PP/r-PET blends

DAIRI, Badrina; BELLILI, Nadira; LARKEM, Sara; RABEHI, Nadjia; DJIDJELLI, Hocine; BOUKERROU, Amar (University of Bejaia, 2024-07-18)

The morphological and thermal study of the blends based on polypropylene (PP) and poly (ethylene terephthalate) recycled (r-PET) without and with a compatibilizer MAPP. PP/r-PET /MAPP Melt blending, the effect of blend ...
STUDY OF L/D RATIO EFFECT ON RESIDUAL HOOP STRESS EVOLUTION IN POLYETHYLENE PIPE

BOUCHAKHCHOUKHA, Soumia; ALIMI, Latifa; CHAOUI, Kamel (University of Bejaia, 2024-01)

In extrusion process of polyethylene tubes, it is known that residual stresses are the consequences of manufacturing process, which requires homogeneous geometric dimensions of diameter and thickness. These impose rapid ...
Physical and mechanical behavior of poly(vinyl chloride) reinforced by corn flour

Sahi, Samira; Sadouki, Kenza; Sahari, Asma; Djidjelli, Hocine; Boukerrou, Amar (University of Bejaia, 2024-01)

In this work it was investigated the incorporation of corn flour (CF) as filler with different content in poly(vinyl cloride) (PVC) in the aim to decrease the plastics wastes in the environment. The corn flour were mixed ...
Anticorrosive performance of MoO4-2-doped polyaniline conductive polymer

BRINIS, Naima; ABDOUNE, Kahina; AOUDIA;, Kahina; TIGHIDET, Hassiba; CHERCHOUR, Nabila (University of Bejaia, 2024-01)

Electrodeposition polyaniline (PANI) and polyaniline doped (PANI-MoO4-2) coatings on steel was prepared in oxalic acid solution by potentiodynamic polarization technique. Morphology of the surface coatings was analyzed by ...
Evaluation of mechanical and physical properties HDPE/Coffee grounds composites with different filler particles size.

BELLILI, Nadira; DAIRI, Badrina; Rabehi, Nadjia; LARKEM, Sara (University of Bejaia, 2024-01)

Plant-based fiber composites are currently experiencing strong growth due in particular to the growing interest in them from the automotive industry. These fibers present an excellent alternative to glass fibers from an ...
Cellulose nanocrystals/polyaniline particles’s dispersion in polypropylene nanocomposites

Benchikh, Lilia; Aitferhat, Yazid; Kebaili, Maya; Abacha, Ilyes; Guessoum, Melia; Merzouki, Abdelhafid; Grohens, Yves (University of Bejaia, 2024-01)

Sustainable development and biomass valorization are a primary means of reducing the non-renewable resources consumption and an opportunity to exploit the agricultural and forestry sectors where biomass as a renewable ...
Valorization of lignocellulosic fibers in the development of composite materials

DAIRI, Badrina; BELLILI, Nadira; AYACHI, Wiam Djamila; NAKOUB, Ismahane; LARKEM, Sara; RABEHI, Nadjia; Djidjelli, Hocine; Boukerrou, Amar (University of Bejaia, 2024-01)

Natural fibers have recently attracted the attention of scientists because of their low-cost, low-density, renewable, biodegradable and non-abrasive properties. The growing use of composite materials is giving rise to ...
Microencapsulation of olive oil by Poly-hydroxy-butyrate-co-valerate / Polyethylene glycol

BELLACHE, Rebiha; HAMMICHE, Dalila; BOUKERROU, Amar (2023-01-26)

Encapsulation is a technology widely used in the industrial field because it brings many advantages, especially in the pharmaceutical field. Among the existing microencapsulation techniques, microencapsulation by solvent ...
Effect of mechanical recycling on the properties of a composite material based on polyvinyl chloride loaded with olive husk flour

Klaai, Lisa; Hammiche, Dalila; Aouat, Hassina; Boukerrou, Amar (University of Bejaia, 2023-01-26)

In this article, we try to contribute to the development of methods and strategies necessary to transform olive husk (OH) from waste for disposal into valuable raw materials as bio-filler for the PVC, for providing a ...
Preparation of herbal ointments by the method of crushing the flowers

BELLACHE, Rebiha; HAMMICHE, Dalila; BOUKERROU, Amar (University of Bejaia, 2023-01-27)

The present work aims to elaborate the ointments prepared by the method of grinding the flowers of plant calendula arvensis and dandelion. The subject has been reinforced by characterizations namely physical analysis by ...
Analytical and numerical investigation of displacements and stresses in thick-walled FGM cylinder with exponentially-varying properties

Medjane, Chahinaz; Benslimane, Abdelhakim; Mesrati, Nadir (University of Bejaia, 2023-01-29)

In this paper, analytical solutions are presented for computing mechanical displacements and stresses in a thick-walled cylindrical made of functionally graded materials (FGMs) under mechanical loading. The pressure vessel ...
Treated Olive Husk flour in a PVC-Based Composite Material: Recycling Effect on Physico-Mechanical and Rheological Properties

Klaai, Lisa; Hammiche, Dalila; Aouat, Hassina; Boukerrou, Amar (University of Bejaia, 2023-01-29)

The work is directed to study the recycling effects on the olive husk flour reinforced polyvinylchloride composites with and without maleic anhydride-grafted polyvinyl chloride used as compatibilizer. To improve the ...
Safranin dye degradation by using Fe2O3-SnO2 Nanocomposites under natural Sunlight

Parshuram JADHAV, Ganesh Kavita; Arun MALUSARE, Omkar Sadhna; Prashant AHIWALE, Ragini Kundan; PATIL, Purnima; GROULI, Ayoub; BERRADA, Mohammed; Uttam PANDIT, Vikram Rama (University of Bejaia, 2022-07-21)

Metal oxide based semiconductor photocatalysts are well known for multifunctional applications. Herein, we have reported the ex-situ synthesis of Fe2O3-SnO2 nanocomposite system using simple wet impregnation method. Total ...
Elaboration of ointments based on vegetable plants “Calendula arvensis” and “Dandelion”.

BELLACHE, Rebiha; HAMMICHE, Dalila; BOUKERROU, Amar (University of Bejaia, 2022-07-21)

The synthetic chemical ointments produced by the cosmetic and pharmaceutical industries cause irritations and skin diseases. For this reason, the present work aims to prepare ointments based on two vegetable plants belonging ...

Now showing items 1-20 of 21990

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