Tensile, Flexural and Impact Properties of Hybrid Sunnhemp-Flax Fiber Based Thermosetting Composites

The recent trends in material science are focused toward composite materials. It has been used in a lot of real-life applications. In composite material, recently researchers concentrated on the natural fibers because of their sustainable effect and focus on the environment. In this paper, sunnhemp and flax natural fibers were selected for making the new hybrid natural composite material. The mechanical properties of hybrid natural composites were determined by experimental approach. The hybrid composite plates were made with the blending of sunnhemp and flax fibers using polyester resin as a matrix material. The sunnhemp-flax reinforced polyester composite plates were made by various fiber lengths such as 15 mm, 30 mm, and 50 mm. Similarly, composite plates were made with different orientations angles like 0 degrees, 45 degrees, and 90 degrees. The mechanical test has been conducted for different orientations such as unidirectional, biaxial, triaxial, and random. It was found that the triaxial-oriented fiber exhibited better results in tensile strength (86.3 MPa), flexural strength (117.1 MPa), and impact strength (153.8 kJ/m(2)).

Automated summary

The recent trends in material science are focused on composite materials, with researchers concentrating on natural fibers such as sunnhemp and flax for their sustainable effects and environmental focus. The mechanical properties of hybrid natural composites were determined through experimental approaches, with triaxial-oriented fibers showing the best results in tensile strength, flexural strength, and impact strength.