Abstract
Conductive polymer composites are becoming more important and useful in many electrical applications. This paper reports on the carbon black (CB) reinforced polyvinyl chloride (PVC) conductive composites. Conductive filler CB was reinforced with thermoplastic PVC by compression molding technique to make conductive composites. The particle size of CB was measured, as it affects the electrical conductivity of the composites. Different types of CB-PVC compression-molded composites were prepared, using CB contents from 5 to 30 wt %. The electrical and tensile properties of these composites were studied and compared. Improved electrical properties were obtained for all CB-PVC conductive polymer composites compared to virgin PVC composite. However, the tensile properties of the CB-PVC composites increased up to 15 wt % CB loading, and then decreased, and elongation at break decreased with increasing CB loading. The structure of the CB, PVC and CB-PVC composites were studied by attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopic analysis. ATR-FTIR spectra provide evidence of the formation of CB-PVC composites. The microstructural analyses showed a good dispersion of CB in PVC matrix.
Highlights
In recent years, the demand for conductive polymer composites has increased dramatically due to their potential application in many areas, including as electromagnetic interference shielding materials, self-regulated heating materials, antistatic coatings, semiconductors, batteries and pressure sensors etc.Different types of conductive fillers, such as carbon black (CB) and metallic powders (Ni, Al, Cu, etc.)have been extensively investigated to effectively improve the electrical conductivity of rubbers and insulating polymers [1]
The results revealed that the conductivity and hardness of the polymer composite increased with the concentration of KOH
Carbon fiber and synthetic graphite, respectively. They reported that carbon black was more effective carbon black (CB) was used as a conductive ingredient to prepare conductive composites
Summary
The demand for conductive polymer composites has increased dramatically due to their potential application in many areas, including as electromagnetic interference shielding materials, self-regulated heating materials, antistatic coatings, semiconductors, batteries and pressure sensors etc.Different types of conductive fillers, such as carbon black (CB) and metallic powders (Ni, Al, Cu, etc.)have been extensively investigated to effectively improve the electrical conductivity of rubbers and insulating polymers [1]. The demand for conductive polymer composites has increased dramatically due to their potential application in many areas, including as electromagnetic interference shielding materials, self-regulated heating materials, antistatic coatings, semiconductors, batteries and pressure sensors etc. Different types of conductive fillers, such as carbon black (CB) and metallic powders (Ni, Al, Cu, etc.). Have been extensively investigated to effectively improve the electrical conductivity of rubbers and insulating polymers [1]. The preparation of different types of electrically conductivepolymer composites filled with various conductive fillers has already been reported by several researchers [2]. The electrical properties of conductive composites depend mainly on how well the fillers disperse within the matrices, the relevant properties of the filler (e.g., particle size, surface area, aggregate structure and surface activity) and polymer-filler interactions. The incorporation of filler into a polymer enhances the mechanical properties of the final product, and decreases the cost of the end product
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