Effect of thermoplastic mesh incorporation on the mechanical and physical properties of fibre reinforced laminate structures

Yap, Sin Yin (2016) Effect of thermoplastic mesh incorporation on the mechanical and physical properties of fibre reinforced laminate structures. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This research mainly focused on the mechanical and physical properties of fibre laminated structures when thermoplastic mesh used as the secondary reinforcement. From the several studies, the thermoplastic mesh mostly used in the field of biomedical and furniture application. However, it is haven been used to produce the composite structure. In this research, the development of hybrid composite was manufactured by using the woven roving E-glass fibre as the main reinforcement while thermoplastic mesh used as secondary reinforcement. Both of these reinforcement was bind with polyester resin via the vacuum bagging process. The manipulate variable in this research was the design of lamina arrangement which categorised into two group. The first group was manipulated by increasing the plies of thermoplastic mesh whereas the second group was shift the position of thermoplastic mesh layer in the fixed number of plies in composite structure. The mechanical behaviour of the prepared sample was investigated according to ASTM standard. The fracture morphology of the specimen tested was analysed by scanning electron microscopy in order to observe the interphase between matrix and reinforcements materials. From the overall obtained result, the design of shifting thermoplastic mesh obtained greater enhancement compared to increase number of thermoplastic mesh. The 6th layer of insertion of thermoplastic mesh layer was obtained highest tensile strength (2.854 MPa) and hardness (78.5 Hd). While 10th layer achieve better flexibility (160.377 MPa) and energy absorption (40.10 J) compared to the others design. With the insertion of thermoplastic mesh, the characteristic of water resistance have been enhanced. Via this research, the development of this hybrid composite could be used for the applications where required higher flexibility, higher energy absorption and water-proof demand.

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