Abstract
Samples have been prepared by adding Titanium carbide nanoparticles to the Poly (methyl methacrylate) and Ethylene-alpha olefin co-polymer (SPO) and Polystyrene (PS) with different weight percentages (o, 2, 4, 6 and 8) wt%. The FTIR analysis, electrical, dielectric, and structural properties have been studied.The dielectric loss and The dielectric constant decrease with increasing of Titanium carbide (TiC) nanoparticles. The A.C electrical conductivity increases with increasing of Titanium carbide (TiC) concentrations and frequency. The D.C electrical conductivity increases with increasing of Titanium carbide (TiC) concentration and temperature. The Activation energy decreases with increasing of Titanium carbide (TiC) nanoparticles. The Humidity sensor application showed that the electrical resistance of (PMMA-SPO-PS-TiC) nanocomposites decreases with increase the Humidity.
Highlights
Transition metal carbides are important materials because they possess some desired properties such as thermal stability, corrosion, and wear resistance, electronic, magnetic, and catalytic characteristics
Titanium carbide (TiC), tungsten carbide (WC), and niobium carbide (NbC) are three kinds of important transition metal carbides, which are applied as cutting tools, ceramics, and wear resistance materials. titanium carbide has a good thermal conductivity and high thermal shock resistance, as well as high abrasion resistance
Titanium carbide powders are ofen used for manufacturing cutting tools, aerospace materials, grinding wheels, abrasive-resistant materials, polishing paste, and magnetic recording heads, as well as crucibles for smelting metals
Summary
Transition metal carbides are important materials because they possess some desired properties such as thermal stability, corrosion, and wear resistance, electronic, magnetic, and catalytic characteristics. General purposes PS are hard, rigid, and transparent at room temperature and glass like thermoplastic material which can be soften and distort under heat It is soluble in aromatic hydrocarbon solvents, cyclohexane and chlorinated hydrocarbons [3].In this study we use Ethylene-alpha olefin copolymer (SPO), this polymer was discovered in 1991. Humidity sensing is essential in civil and aerospace engineering It is frequently monitored in giant structures such as planes and bridges to control the possible risk of leakage due to corrosion. 2. RESEARCH METHOD (PMMA-SPO-PS-TiC) nanocomposites have been prepared by adding Titanium carbide nanoparticles to 70% Poly (methyl methacrylate) and 20% Ethylene-alpha olefin co-polymer (SPO) and 10% Polystyrene(PS) in 40 mL of pure benzene, by using magnetic stirrer for 70 min in 1250 oC. The D.C electrical conductivity of nanocomposites calculated for a regular body with a section has along the length (L), a constant area (A) and electrical resistance (R) by using the relation [6]: σdc
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