Influence of Recycle of Natural Fiber Reinforced Polymer Composites on Their Properties—A Brief Review
摘要
Composite materials containing natural fiber-reinforced polymer matrices have seen extensive usage owing to the abundant availability of their reinforcing constituents in nature, their high stiffness-to-weight and strength-to-weight ratio, biodegradability and lower production costs in contrast to synthetic fibers such as carbon and glass fibers. Thermoplastic matrix composites are recyclable post their service life. However, recycling these natural fiber-polymer composites presents both opportunities and challenges. This review outlines the impact of recycle on the characteristics of such composites, covering mechanical and physical properties. Typically, these composites can undergo recycling cycles of 4–6 times before experiencing alterations in their thermo-mechanical properties. Subsequently, after seven cycles of recycling, there’s a decline in tensile strength and elastic modulus. Some methods to counteract this decline in material properties involves the addition of additives, some processes, thermal stabilizers, chain extenders, and virgin polymers.