Synthetic Hybrid Laminate Composite Using Polyester VIA Hand Lay Up For Hardboard Application

Khor, Kell Nie (2011) Synthetic Hybrid Laminate Composite Using Polyester VIA Hand Lay Up For Hardboard Application. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In this stud~. the mechanical properties of polyester resins by hand lay up method in a hybrid laminate composite had been investigated for hardboard application. The raw materials used \\ere unsaturated polyester. glass fiber type E and wire mesh. This research was started by the study of characterization and properties required for hardboard applications. Then. it was aimed to determine the propeties of different layer and arrangement of glass fiber and wire mesh reinforcements in a laminate composite system. In addition.the most optimum ratio of matrix and reinforcement inv the composite based on cost and properties was investigated. The different layers and arrangements in laminate composite were then fabricated by hand lay up method. The curing of polyester was done at room temperature under cold press. Eleven samples of laminate composite had been fabricated and cut into the specific dimensions accordingly to the ASTM standard for each mechanical testing. The enhancement of the tensile. flexural, impact. hardness properties as well as water resistance of the synthetic composites had been investigated by laboratory testing. From the testing. the most optimum sample were observed and selected. Based on the analysis of both mechanical and physical testing. it was found that the hybrid laminate composite of SN 9 with 7 fiberglass at top and 3 layer at bottom of the wire mesh reinforced polyester resin gave the highest value of tensile strength with 198.21 MPa. flexural strength with 4.52 MPa. impact strength with 280.20kJ/m'· and hardness with 87.2. Besides that, the water resistance of this hybrid laminate composite was better. the properties of this sample had been compared to the actual product that was plastic pallet in order to replace it in hardboard application. As a result. superior properties were found in the sample as compared to the actual product

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