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Mechanical and structural properties of polypropylene composites filled with graphite flakes

Akinci A.

Archives of Materials Science and Engineering

2009

Vol. 35, nr 2

91-94

Purpose: The goal of the work is to study the polymer matrix composite (PMC) with isostactic Polypropylene (iPP) as a matrix material and graphite as a filler. Design/methodology/approach: Density and tensile strength have been carried out and the relationship between the graphite content and properties were examined. X-Ray Diffraction (XRD), Differential Scanning Calorimeter (DSC) and SEM facilities were applied on the polished and fractured surfaces of PMC. Findings: Results showed that values of tensile were decrease by increasing graphite. Fractured surfaces showed that good interaction between the polypropylene and graphite particles. XRD and DSC investigations showed that the crystallization ratio changes in the iPP composites. Research limitations/implications: Graphite addition was observed to be an alternative additive to the iPP. If suitable coupling agents could be added to graphite and iPP mixtures, the mechanical properties can possibly be increased. Originality/value: It is thought that the nucleating effect of the graphite leads to an increased rate in orientation of the polymer.

Mechanical and morphological properties of basalt filled polymer matrix composites

Akinci A.

Archives of Materials Science and Engineering

2009

Vol. 35, nr 1

29-32

Purpose: The aim of this work is to study the effect of basalt on physical, mechanical and morphological of the injection molded LDPE. Design/methodology/approach: In this study, the effect of basalt was investigated as a filler material in polymer matrix composite (PMC) and low density polyethylene (LDPE) was chosen as a matrix material. Findings: A variety of mechanical tests were performed on the resultant composites which has appropriate compositions. Tensile, flexural, density and hardness tests have been carried out and, the relationship between the basalt content and properties were examined. XRD and SEM facilities were applied on polished and fractured surfaces after flexural tests respectively. Research limitations/implications: In present study, it was found that, the content of basalt filler affected structural integrity and mechanical properties of composites. With increasing the amount of the basalt addition to the LDPE results in a decrease in elongation at break values. Originality/value: It is thought that the nucleating effect of the basalt leads to an increased rate in orientation of the polymer. The crystallization was increased by increasing the basalt content. Basalt addition was observed to be an alternative additive to the LDPE. If suitable coupling agents could be added to basalt and LDPE mixtures, the mechanical properties can possibly be increased.