Thermal and dynamic mechanical analysis of hybrid jute/sisal fibre reinforced epoxy composite

Abstract

The aim of the present study is to investigate the dynamic mechanical and thermal properties of hybrid jute/sisal fibre reinforced epoxy composites. The hybrid composites were prepared by hand layup technique having total fibre loading of 30% by weight with different weight ratios of jute and sisal fibres. Dynamic mechanical properties such as storage modulus (E 0 ), loss modulus (E 00 ) and damping (Tan) were investigated in the temperature range of 30-200 C. The thermal stability of the prepared composites was studied using thermogravimetric analysis. Other thermal properties such as glass transition temperature (T g ), crystallization temperature (T c ) and decomposition temperature (T d ) were also obtained by differential scanning calorimetry. The results indicated a positive effect of hybridization in terms of increase in dynamic mechanical and thermal properties. Storage modulus, loss modulus and T g were found to be higher for hybrid composite having a higher percentage of jute fibres.

Effect of Variation in Frequencies on Dynamic Mechanical Properties of Jute Fibre Reinforced Epoxy Composite s

“…The highest value of ' E for composite J30 could be due to strong interfacial adhesion between fibres and matrix. In all cases, the storage moduli were found to decrease with increase in temperature due to loss in stiffness of fibres at high temperature [24][25][26]. In transition region, all jute composites had a gradual fall in values of ' E with increase in temperature.…”

“…The values of g T for the jute composites which is obtained from loss modulus curve is given in Table 3. The composite J30 showed the highest value of g T (100C) which shows its better thermal stability than all other jute composites [26]. The higher thermal stability could be associated with the decrease in mobility of matrix due to incorporation of jute fibres [28].…”

“…The glass transition temperature is an important output parameter of DMA, defined as a point where materials changes from glassy to rubbery state, can be obtained from either peak of loss modulus or  Tan curve [18]. Many researchers had already reported studies on dynamic mechanical properties of NFRPCs, and highlighted that these composites have acceptable dynamic mechanical properties for many industrial applications [17][18][19][20][21][22][23][24][25][26].…”

Investigations on jute fibre-reinforced polyester composites: Effect of alkali treatment and poly(lactic acid) coating

“…Natural fibres can be considered as one of the eco-friendly reinforcing materials which have the capability to replace the synthetic fibres on account of its acceptable mechanical performance. These fibres have many advantages such as abundant, low production cost, low density, high specific strength and modulus, less wear and tear, recyclability, resistance to fatigue and corrosion, eco-friendliness and biodegradability [1][2][3][4][5][6]. Due to these properties of natural fibres, their polymer-based composites are being used in many applications such as packaging, building and constructions, sports, electrical, boats, furniture and office products [7][8][9].…”

Mechanical and Thermal Characterization of Natural Intralaminar Hybrid Composites Based on Sisal

“…Gupta and Srivastava [28,29] studied the dynamic mechanical and thermal properties of hybrid jute/sisal fiber reinforced epoxy composites and found a positive effect of hybridization in terms of dynamic mechanical and thermal properties. Storage modulus, loss modulus and T g were found to be higher for hybrid composite having a higher percentage of jute fibers.…”