Preparation and properties of carbon fiber chiral materials

Abstract

The chiral materials were prepared by using the carbon fiber helices as chiral inclusions, and the composite of Fe₃O₄ and polyaniline as matrix. The electromagnetic properties, including the rotation angles, the axial ratios and the complex chirality parameters, were measured by using a circular waveguide method in the 8.5–11.0 GHz frequency range. The dependence of these electromagnetic properties on the frequency and the concentration of the Fe₃O₄ in the composite matrix were analyzed. The results show that an appropriate concentration of Fe₃O₄ in the matrix is useful in improving the electromagnetic properties of the chiral material.

Keywords

carbon fiber / composite matrix / circular waveguide method / rotation angle / axial ratio / chirality parameter

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