Study of mechanical properties of pultruded jute-glass reinforced unsaturated polyester bio-composites with hybrid filler loading

Abstract

Purpose The purpose of this study is to develop jute-glass hybrid fibre reinforced polyester-based bio-composites using an indigenously developed pultrusion set-up and to present a detailed discussion on their mechanical characterization. Design/methodology/approach The work was carried out to observe the hybridization effect of natural and synthetic fibres in combination with hybrid fillers loading mainly on strength and other properties. The used hybrid fillers were a combination of 9 Wt.% of carbon black%, 6 Wt.% of eggshell ash powder and 6 Wt.% of coconut coir ash powder. A lab-based developed pultrusion set-up was used to develop these hybrid GJFRP composites of 1,500 mm length. The developed composites were tested for tensile strength, compressive strength and impact strength. Findings The maximum tensile, compressive and impact strength obtained are 88.37 MPa, 56.13 MPa and 731.91 J/m from 9 Wt.%, 9 Wt.% and 0 Wt.% of hybrid fillers loading, respectively. Breaking energy was found maximum as 7.31 J in hybrid glass-jute hybrid fibre reinforced plastic composites with no filler loading and it was observed that filler loading was decreasing the impact strength of developed hybrid composites. Shrinkage and its variations in the diameter of the finally developed cylindrical shape composites were observed after cooling and solidification. Scanning electron microscopy was used to observe the internal cracks, bonding of fibres and resin, voids, etc. Originality/value Development of hybrid filler based novel eco-friendly bio-composites and its experimental investigation on the impact strength, tensile strength and compressive strength has not been attempted yet.

Estudo Do Desgaste De Fresas De Aço Rápido Nitretadas E Com Tratamento Duplex Na Usinagem Do Aço Sae 1020

“…A variação da temperatura no momento da medição interno e externo era de 1ºC e da umidade relativa do ar 4,8%, logo estão de acordo com as especificações estabelecidas pela ISO 10847. 2,3,5,6,7,8,9,10,11,12,13,14,16,17,19 Gnaisse 1, 3, 20 Oxigênio dissolvido 75, 77,78,79,80,81,82,83,84,85,86,88,89…”

“…The dimensions of the models for both the pure resin and the composite with fibers correspond with the dimensions of the standard for the tensile force D638-14 Type I, as can be seen in Figure 1a. [14][15]. The contact (bonded) between the fibers and the resin of the specimen was ensured to guarantee the transmission of loads, simulating a correct bonding between the fibers and the matrix.…”

Kenaf-Coir based hybrid nano-composite: an analytical and representative volume element analysis

“…The research carried out by various authors on kenaf fibre hybrid composites and nano-composites is summarised in Table 1. The impact of hybrid loading of fillers on polyester composite reinforced with glass-jute fibres is analysed by Kumar et al (2021). The properties and characteristics of an asphalt mix by mixing kenaf and coir fibres are reported by Sani et al (2011).…”

Numerical and Experimental Analyses of Hybrid Composites Made from Amazonian Natural Fibers

“…The application of lignocellulosic fibres as reinforcements in composite materials has found increasing use in recent years to replace synthetic fibres such as glass, carbon and aramid fibres due to the characteristics of natural fibres such as their low cost, low density, high specific modulus, economic and environmental advantages, biodegradable, abundant and with many technical qualities [1][2][3][4], These advantages place lignocellulosic fiber composites among high-performance composites with economic and environmental advantages [5][6][7]. Although completely synthetic composites dominate the It is known that the mechanical performance of a composite material strongly depends on the nature, orientation of the fibres, the nature of the matrix and also on the quality of adhesion between the two components [18][19][20][21]. Treatment of plant fibers with sodium hydroxide (NaOH) is an effective solution to dissolve their non-cellulosic substances and reduce their sensitivity to moisture or water, and improve fibermatrix adhesion in composites [22][23][24].…”