Title: CURE SIMULATION OF HEMP FIBRE ACRYLIC BASED COMPOSITES DURING SHEET MOLDING PROCESS
Page Range: p.235-244
Author(s): Behzad T; Sain M
File size: 173K
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 13
Issue No: No. 3
Abstract
This aim of this study is to provide a model to predict the cure behaviour and temperature variations of hemp fibre acrylic based composites during the process of sheet moulding, and to evaluate the predicted values with experimental results. The composites are designated for use in the automotive industry. A finite difference method was applied to predict the cure behaviour and temperature variation of hemp fibre acrylic based composites during the process. Dynamic differential scanning calorimetry was used to determine the kinetic parameters for the curing reaction at different heating rates. It was found that the experimental and predicted values were in good agreement at the lower heating rate. The thermophysical properties of the resin, fibre and composite were obtained to use in the model. The temperature profile and the degree of cure of the composite with 40% resin and 60% fibre were simulated, and a comparison of numerical results with known experimental data confirmed the approximate validity of the model. 19 refs.
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