Mechanical and thermal properties of epoxy composites reinforced with waste peanut shell powder as a bio-filler

Abstract

Bio-filled polymer composites are gradually replacing plastics to achieve the aim of environmental sustainability. Present study has been carried out to prepare the composites made by reinforcing waste peanut shell powder (PSP) as a natural filler into epoxy resin matrix. The natural filler extracted by manual process was subjected to alkali treatment with the concentrations of 2, 5 and 7 w/v%. The composites fabricated by varying the weight fractions of filler in the range of 5 to 15 wt%. The effects of bio-filler content of the composites on tensile and thermal properties were evaluated by Fourier transmission infrared spectroscopy (FTIR), universal testing machine, scanning electron microscope (SEM) and thermal gravimetric analysis (TGA). The studies reveal that the tensile strength and tensile modulus increased with the increasing of bio-filler content. The highest mechanical properties of 7 % alkali treated PSP loaded Epoxy composite were achieved at biofiller mass content of 15 wt.%. The morphology of the composites shows better bonding between the filler and resin, thus leading to improvement of the mechanical properties. The TGA results revealed that the polymer composites showed thermal resistance on increasing NaOH concentration and filler content.

Development and characterization of green composites from bio‐based polyethylene and peanut shell

“…Zaaba et al 25 showed the positive effect of previous chemical modification of peanut shell with poly(vinyl alcohol)-PVA to improve overall properties of recycled polypropylene (PP). Prabhakar et al 26 analyzed the effect of peanut shell fillers (without and with a previous alkaline treatment) in epoxy thermosetting resins. In addition, the potential of peanut shell as base material for particle board manufacturing was studied, 27,28 but its use is not generalized.…”

Preparation, characterization and use of new lignocellulose-based bio nanocomposite as a heterogeneous catalyst for sustainable synthesis of pyrimido benzazoles

“…So, PS/ ZnO was selected as the best catalyst for the model reaction. The catalyst loading and heating conditions were also optimized (entry 13,17,18). As a result, the optimum conditions obtained were the use of 20 mg of PS/ZnO under microwave irradiation and a reaction time of 2 min.…”

“…Every year around 13.7 million tons of PS are discarded in the environment or burned (2)(3)(4). In contrast limited value-added uses exist for their removal among which we can mention the preparation of solid acid catalyst for biodiesel production and etherification of glycerol (5)(6)(7), natural dye and metal absorbents (8)(9)(10)(11)(12)(13)(14), biofilter based on their mechanical and thermal properties (15)(16)(17), and they are also used in the production of cellulose (18). PS are mainly composed of three biopolymers: lignin, cellulose and hemicellulose.…”

Design and Analysis of Sisal Filled Glass Epoxy Composite Leaf Spring

“…End joint with bonded nature are better than the bolted end joints for stress concentration and delamination [15]. Groundnut shell powder is used for composite and tested for thermal and mechanical properties, which shows good result with 15 wt% composition [17]. Treatment performed on jute fiber has shown better creep behaviour than untreated fiber composite [19].…”