Chemical Composition of Natural Fibers and its Influence on their Mechanical Properties

The conventional composites are replacing such well-established structural materials as steel, iron, and aluminum very fast. The conventional composites are not easily disposable. To overcome the problems of disposability and pollution, the focus is on the fabrication of natural composite materials. The natural composite materials are made from natural fibers and natural resins. Various natural fibers, such as jute, hemp, coir, cotton, and others are used in industry to fabricate natural composite materials. The fibers are load-carrying members in the composites. The main constituents of the fibers are cellulose, hemicelluloses, lignin, pectin, and wax. The composition of fibers depends on the geographic location where the plants are grown up. The peculiarity is the fact that all the fibers have the same constituents, but with different composition, which makes the fibers to behave differently. In this work, the Pearson rank correlation coefficients are found between the composition and properties of the fibers, and the corresponding equations of regression lines are obtained.