Impacts on the combination of self-reinforced polypropylene with interlayer composites

Abstract

Most research has concentrated on the mechanical performances of fiber-reinforced plastics (FRP) like carbon, glass, and
aramid, but there has been a recent uptick in interest in creating a high-strength, lightweight composite as a possible
replacement for traditional materials in a variety of industries. The hybrid composites, on the other hand, aren't as widespread,
but they're thought to have great promise due to their adaptability and capacity to combine the advantages of other composites.
Five different composite designs were created in this research utilizing the hand lay-up method. These designs include various
kinds of woven fibers and sheets of self-reinforced polypropylene (SRPP). Depending on the manner of interlayer
hybridization, several patterns are organized. Composite designs were subjected to the usual tensile and three-point flexural
tests to determine their static mechanical characteristics. Carbon fiber-reinforced plastic (CFRP) shown superior tensile
properties, according to the results of empirical investigations. The CFRP specimen outperformed the CAFRP specimen in
terms of both tensile strength (46% higher) and elastic modulus (33% larger). In contrast to other hybrid composites and
single-type carbon/aramid fiber reinforced plastics, CAFRP showed markedly improved flexural properties. In particular, the
CAFRP structure outperformed the CFRP structure, showing 50% improvement in flexural strength and 19% improvement
in modulus. Despite a decline in tensile and flexural strength, an improvement in overall strain level was seen with the
incorporation of SRPP layers into the hybrid arrangement. Based on the results of this investigation, FRP composites are
structurally strong and stiff with little elongation, while SRPP-based composites are tougher but less stiff.