Evaluation of mechanical, thermal and water absorption behaviors of Polyalthia longifolia seed reinforced vinyl ester composites

Abstract

This study presents a novel utilization of biomass solid waste, named Polyalthia longifolia (Mast tree) seed as a reinforcement in a composite, using a compression molding technique.An attempt was made to reinforce vinyl ester matrix (VE) with Polyalthia longifolia seed filler (PLSF), ranging from 5 to 50 wt% loadings. Mechanical properties of the fabricated Polyalthia longifolia seed filler/vinyl ester (PLSF-VE) composite samples were tested and analyzed. The results showed that the PLSF-VE composite exhibited optimum mechanical properties at 25 % wt of filler loading; ultimate tensile strength and modulus were approximately 32.50 MPa and 1.23 GPa, respectively. The ultimate flexural, impact strengths and hardness were observed around 125 MPa, 31.09 kJ/m 2 and 36.50, respectively. The heat deflection test and thermo-gravimetric analysis depicted that the PLSF-VE composites withstood up to 66 o C and 430 o C, respectively. Furthermore, the PLSF and its various composite samples were studied, using energy-dispersive X-ray (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM).

Applicability of cellulosic‐based Polyalthia longigolia seed filler reinforced vinyl ester biocomposites on tribological performance

“…After it has been wholly poured into the mold cavity, the mold was closed with upper die and compressed with a pressure of 100 KPa. Lastly, the whole set‐up was left for 24 hours at room temperature for better curing 37–38 …”

Effect of Prosopis Juliflora Thorns on Mechanical Properties of Plastic Waste Reinforced Epoxy Composites

“…The harder the final product is obtained as a result of the increased filler content. The fillers in the matrix provide resistance, which enhances hardness [ 26 ]. Another component that improves the composite’s properties is the bonding between the matrix and filler [ 27 ].…”

Cellulosic fiber based hybrid composites: A comparative investigation into their structurally influencing mechanical properties

“…The reinforcement materials used for composite fabrication were roselle fiber yarn mat and Indian mallow. The manufacturing method used was compression molding (SANTEC Hydraulic Compression Moulding machine) with weight capacity of 300 kg [42][43][44]. The woven Indian mallow fiber yarn mats layers, both single and double, were placed in a 200 mm × 200 mm × 3 mm mold in both transverse and longitudinal orientations.…”

“…The sample specifications used for this test were lengths, width and thickness of 127 mm, 13 mm and 3 mm. A minimum of five samples were tested and the average value was reported [26,42].…”