TENSILE STRENGTH OF POLYESTER COMPOSITES REINFORCED WITH THINNER RAMIE FIBERS

摘要

This study evaluated the tensile properties of polyester composites reinforced with ramie fibers with thinner diameters. Specimens with different ramie fibers percentages (0.10,20 and 30%) in continuous and aligned ramie stalk fibers volume , were tensile tested at room temperature to evaluate the ultimate strength, elastic modulus and total strain. The results indicated that the tensile properties tend to improve with increasing volume fraction of ramie fibers. The role played by the fiber/matrix interaction was analyzed by scanning electron microscopy.