Abstract
The study is highlighting the possibility of modeling the properties of composite materials based on recycled polypropylene (PPR), flour feathers(FF), and compatibilizers (C). The composite materials with 10% and 20% feather flour content were mixed and processed with a two-stage extruder having four heating zones between 200-230�C, in order to obtain granules. The granules were injected in various forms to evaluate the properties. The composite materials have been evaluated for determination of melt flow index (1900C; 2.16kg), density, Charpy impact, breaking strength, elongation at break, and the dielectric behavior. The results showed that the introduction of feather flour in the polymer matrix based on PPR leads to decreased flow properties as well as physical and mechanical properties. The solution in solving these deficiencies was to use compatibility agents, that would improve these properties. The physico mechanical properties were analyzed in order to identify a composite with optimal properties for industrial application.
Highlights
In order to respond to the constraints of energy resources, pollution and environmental protection legislation, researchers have developed in recent years many composite materials
Through the first stage of the extruder, the polymeric matrix of PPR was introduced, and through the second stage, the feather flour (FF) or the mixture of feather flour and compatibilizers (C) were introduced. This two-stage system allowed to development of composite materials with improved properties since the feather flour is not introduced into the extruder together with the polymer matrix
The values of the melt flow index, Charpy impact test, breaking strength, elongation at break decreased by increasing the feather flour percentage, but the compatibilizers lead to the improvement of these decreases
Summary
In order to respond to the constraints of energy resources, pollution and environmental protection legislation, researchers have developed in recent years many composite materials. The polymeric composite materials are composed of a basic polymeric matrix and a reinforcing agent that has the role of improving the mechanical properties of the polymeric matrix in order to replace in various applications classic materials as wood, plastic or aluminum. The disadvantages of these materials are related to the production and processing processes which are complex. The reinforcing materials are natural plant or animal fibers that offer, low weight, reliability, corrosion resistance, low maintenance costs, and a faster decomposition rate in comparison to conventional plastic. The matrix-fiber interaction has been improved by using coupling agents which are increasing the degree of cross-linking in the interfacial region and provide a proper bonding result [6]
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