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Abstract

The effect of impregnation conditions on shear coupling deformation of continuous glass fiber reinforced polyurethane elastomer composites was studied. The pre-mix fiber/matrix was compression molded at 200 and 220°C. The impregnation time was varied between 5 and 20 minutes. Tensile test was carried out and elastic constants such as EL, ET, E45 and GLT were determined. The micrographs of cross section revealed that impregnation of matrix resin into the reinforcement was complete before 20 minutes for the 220°C sample while impregnation was incomplete in a sample fabricated at 200⁰C. The reasonable agreement between the theoretical and experimental values of GLT = ET/4 in 220°C was attributed to the complete impregnation. The results also showed that the bias angle in which the shear deformation vanishes depends on impregnation conditions.

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References

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"Experimental Analysis of Relation between Shear Coupling Element and Bias Angle of Carbon Fiber Reinforced Polyether-Polyester Elastomer Composites,"

J. Reinf Plast. & Compos., in press.

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The Dependence of Shear Coupling Deformation on Impregnation Condition of Glass Fiber Reinforced Thermoplastic Polyurethane Composites

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