Hygrothermal and wear behaviour of short carbon fiber reinforced polycarbonate
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Date
2018-06
Authors
Ainnur Hanim Othman
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Abstract
Four compositions with 0, 5, 10, and 15 % of short carbon fiber loading
reinforced with polycarbonate was prepared using single screw extruder. The
composite was then tested for the wear and hygrothermal behaviour. On the wear
testing, it was found that the wear resistance depends on the carbon fiber loading. On
the hygrothermal testing, specimens were immersed in water at room temperature and
60 °C until reached equilibrium in weight. It was found that diffusion coefficient also
depend on fiber loading. As the fiber loading increased, the coefficient of diffusion
reduced, means that it less absorb water. Then, the immersed sample was test with
three points bending flexural testing on wet and redried samples. The observed
flexural strength and modulus were these properties drop at wet condition and
increased back upon recovery. The flexural properties at 60 °C were lower than room
temperature. It can be proved that the high temperature tend to degrade composite
faster than at room temperature.