Effect Of Risk Husk Reinforcement To The Properties Of Polyester Bio Composite For Roofing Product

Siti Salwany, Abu Hasan (2010) Effect Of Risk Husk Reinforcement To The Properties Of Polyester Bio Composite For Roofing Product. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

There is a wide choice of materials used to roof a house, ranging from thatch - dried grass, to slate - pieces of stone. Modem products like plastic, thermoplastic, asbestos, fiberglass and concrete are available, and some innovative, energy-efficient homes are being roofed with sod. The rice husk will be a reinforcement that will be mix with Polyester as matrix in order to get the result of the study. Basically the natural fiber will be treated with the alkali treatment. The concentrations such as 2% NaOH with same soaking time which is 5 hours. For the manufacturing process, the rice husk I Polyester is prepared by using Hand Lay Up process with several equipments and tools. 3 pieces specimens of each testing were tested by using the different testing method. The tests that will be conducted are Tensile Test, Hardness Test, Impact Test, Flexural Test, Water Absorption, Thickness Swelling Test and Morphological Study. The results shows the ability of the rice husk become one of the possibility roofing materials. The effects of filler loading and surface modification of rice husks on the mechanical properties and water absorption of the composites were also investigated. The results show that tensile strength increases with increase in the composition and fiber percentage. However, after a certain composition, the tensile strength decreases again. From the tensile test, the results show that the specimen that consists of 15% composition of rice husk gives the higher value of tensile strength and its shows that the tensile strength of that composition much higher compared than asbestos. Water absorption test, shows that the specimen consists of rice husk have a lower % of water absorption, compared than asbestos specimen. This observation was well supported by the microstructure investigations of the fracture surfaces.

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