Abstract
Great interest has been shown lately in bio-composite materials because they are inexpensive and sustainable. Composites with matrices and natural reinforcers have been little studied. Here, we study certain mechanical properties of composite materials with a Dammar-based matrix (also named hybrid matrix) and flax fabric reinforcement. To be precise, we examine three types of resins where Dammar is the major component, with a volume proportion of 55%, 65% and 75%. In this respect, we have made composite materials reinforced by two types of flax fabric and we have measured the characteristic curves and some mechanical properties, such as the Young�s modulus, tensile strength and elongation at break using tensile tests. Based on the obtained properties, it is proposed or possible to use these materials in orthopedics.
Highlights
Bio-composites that have both matrix and reinforcer made of natural materials are increasingly used because they are environmentally friendly compared to conventional petroleum-based materials.The use as a reinforcer of natural fibers instead of synthetic ones in the structure of polymers, has certain disadvantages, such as: excessive water absorption, low thermal properties, etc
The mechanical properties of certain composite materials obtained from Dammar-based hybrid resin, reinforced by flax, cotton, hemp, wheat straw and cattail are analysed in [24]
In the paper [25] is studied the influence of material nonuniformities on the mechanical behavior of composite materials that have the hybrid matrix based on Dammar and the reinforcement of hemp fabric
Summary
Bio-composites that have both matrix and reinforcer made of natural materials are increasingly used because they are environmentally friendly compared to conventional petroleum-based materials. The mechanical properties of certain composite materials obtained from Dammar-based hybrid resin, reinforced by flax, cotton, hemp, wheat straw and cattail are analysed in [24]. In the paper [25] is studied the influence of material nonuniformities on the mechanical behavior of composite materials that have the hybrid matrix based on Dammar and the reinforcement of hemp fabric. Some mechanical properties of Dammar-based composite materials will be studied, and the reinforcer will consist of two types of flax fabric. From the composite material with the flax fabric reinforcement and the hybrid matrix with 65% volumic proportion of Dammar resin, will be made a fixed orthosis to protect the tibia bone against external stresses. The rate of union of tibial fractures after this method of treatment is around 97% [26]
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