Per: mariana dias machado lopes (UENF), SERGIO NEVES MONTEIRO (uenf), felipe perissé duarte lopes (uenf), noan tonini simonassi (uenf)
Abstract:
Tensile strength is a fundamental property for various materials, especially those used in structural applications. The use of natural fibers, such as bamboo, as reinforcement in polyurethane composites has been of interest due to their favorable mechanical properties and renewable nature. In this study, polyurethane composites with different bamboo fiber contents were prepared and their tensile strength was evaluated. It was possible to observe an equivalence among the results of each of the proportions used, offering the perspective that the increase in fiber for this study did not improve the properties of the composite. Thus, although the addition of natural fibers may improve certain mechanical properties of polymeric composites, such as perpendicular tensile strength and impact resistance, the modulus of elasticity and tensile strength limit may not experience a significant increase if factors such as fiber orientation, bonding, content, distribution, fiber flexibility, nature, and properties of the matrix are not optimized and compatible