Dynamic Mechanical Properties of Natural Fiber-Reinforced Epoxy Foams

Abstract

In this work, the dynamic mechanical behavior of jute fiber-reinforced epoxy foams was investigated. The influence of various fiber and microvoid content on shear modulus, frequency and log decrement was discussed. Experimental results showed that the 42 vol.% fiber content significantly enhances the shear modulus. The shear modulus and frequency were decreased with increasing microvoid content in the epoxy matrix. The jute fiber as reinforcement affects the temperature of the log decrement peak. Increasing fiber and microvoid content induced a decrease and an increase of the log decrement peak values, respectively.

Evaluation of Mechanical Properties of Coconut Coir Fiber Reinforced Polymer Matrix Composites

“…It indicates that the tensile strength of composites decrease with increase in fibers volume. This agrees with the conclusion of earlier work [1] that coir fibers do not enhance the tensile strength of composite. This result reflects the lack of interfacial adhesion between matrix and fibers which behave like voids in the continuous phase.…”

“…The mechanical properties of coir fibers reinforced composites are expected to depend on the content or volume fraction of the fibers in the composite [1]. Even a small change in the physical nature of fibers for a given volume content of fibers may result in distinguished changes in the overall mechanical properties of composites.…”

“…For example, natural fibers like sisal, jute, coir, oil palm fiber have all been proved to be good reinforcement in thermoset and thermoplastic matrices. Nowadays, the increasing interest in automotive, cosmetic and plastic lumber application has heightened the need of natural fibers reinforced composites in these regimes as it offers an economical and environmental advantage over traditional inorganic reinforcements [1]. Therefore, many industrial companies are looking for new composites material which has good and specific properties like mechanical, chemical and dynamic characteristic.…”

Dynamic mechanical behavior of mono/synthetic-natural fiber composites—a review

“…NFPCs often contain a thermoset polymer matrix (figure 1) embedded with low-density fiber bundles, micro/nanoparticles, and structural reinforcements. In addition to the previous statement, fiber composites bring significant growth and production volume in NFPC applications in automotive, aircraft, civil, and marine industries [2,3].…”