Mechanical Properties of Natural Jute Fabric/Jute Mat Fiber Reinforced Polymer Matrix Hybrid Composites

Abstract

Recycled needle punched jute fiber mats as a first natural fiber reinforcement system and these jute mats used as a core needle punched with recycled jute fabric cloths as skin layers as a second natural fiber reinforcement system were used for unsaturated polyester matrix composites via modifying the hand lay-up technique with resin preimpregnation into the jute fiber in vacuum. The effect of skin jute fabric on the tensile and bending properties of jute mat composites was investigated for different fiber weight contents. Moreover, the notch sensitivity of these composites was also compared by using the characteristic distance d o calculated by Finite Element Method (FEM). The results showed that the tensile and flexural properties of jute mat composites increased by increasing the fiber weight content and by adding the jute fabric as skin layers. On the other hand, by adding the skins, the characteristic distance decreased and, therefore, the notch sensitivity of the composites increased. The fracture behavior investigated by SEM showed that extensive fiber pull-out mechanism was revealed at the tension side of jute mat composites under the bending load and by adding the jute cloth, the failure mode of jute mat was changed to fiber bridge mechanism.

Development and characterization of jute composites for sustainable product: effect of chemical treatments and polymer coating

“…flexural strength and flexural modulus) obtained from flexural load v/s extension graph (figure 6) for pure and modified jute composites are presented in figure 7. Flexural results of the present composite was seen close to those of reported in the earlier published works [27,28,30]. In case of flexural analysis, a similar trend like tensile test result was observed.…”

“…tensile strength and tensile modulus) obtained from tensile load v/s displacement diagram (figure 3) for pure and modified jute composites are presented in figure 4. Tensile properties of the present composite was found close to those of reported in the previous published works [27,29,30]. A positive effect of surface modifications by treatments (alkali, benzoyl chloride and sodium bicarbonate treatment) with PLA of jute fibres were observed in terms of enhancement in tensile properties of its composite.…”

Effect of Glass Fibers Stacking Sequence on the Mechanical Properties of Glass Fiber/Polyester Composites

“…From these results, the delamination of matrix is more severe in STGC than SLGC composites and the delamination in SLGC is higher than that of PWGC composites as shown in Figure 3a2, 3b2 and 3c2. Similar results in jute sandwich composites were reported [19] where the flexural properties of short jute-polyester composites with plain woven jute fibers as skin layers are higher than those without skin layers. Figure 6 shows the flexural fracture of different composites through the whole thickness.…”

Oat fibers modification by reactive extrusion with alkaline hydrogen peroxide

“…In this context, natural fibers have been studied as a good alternative for reinforcement being mixed with pure biodegradable polymers or their blends to form composites with reduced environmental impact [8] . Fibers of curaua, jute, sisal, sugarcane, and others have been tested for this purpose [4,[8][9][10][11][12][13][14][15] .…”