Effect of titanium dioxide on the structural, thermal, and electrical properties of chlorinated natural rubber/poly (indole) blend nanocomposites for flexible nanoelectronic devices

Abstract

The synthesis of highly flexible conductive rubber blend nanocomposites using a conductive polymer with metal oxide is a new and promising approach. In this work, the effect of titanium dioxide (TiO 2 ) on the performance of chlorinated natural rubber/polyindole (Cl-NR/PIN) blend nanocomposites was systematically studied. Fourier-transform infrared spectra revealed the successful incorporation of nanoparticles in the blend system. UV analysis assessed the increased absorption spectra of the nanocomposite compared to the pure blend. The X-ray diffraction confirms the presence of TiO 2 nanostructure in the blend. The high resolution transmission electron microscope results exhibited the uniform dispersion of TiO 2 in the blend. Differential scanning calorimetry and thermogravimetric analysis show the increased glass transition temperature and thermal stability of the blend nanocomposite with an increase in TiO 2 concentration. The linear low-frequency AC conductivity demonstrated the occurrence of electrode polarization and the exponential increase in AC conductivity after a threshold frequency illustrated the semiconducting behavior of the composites. The maximum dielectric constant and AC conductivity were measured for the composite with 5 wt% filler loading, as the threshold level for the maximum interfacial contact. The hopping conduction, activation energy, improved conductivity and dielectric properties suggest that these blend nanocomposite films are promising candidates for the development of flexible energy storage devices.chlorinated natural rubber/polyindole blend, dielectric parameters, nanocomposites, temperature dependent conductivity, thermal properties, titanium dioxide | INTRODUCTIONConducting polymers are of great interest due to their diverse applications such as rechargeable batteries, modified electrodes, biosensors, electrochromic displays, and primer layers that prevent corrosion. [1][2][3] The nitrogencontaining heteroaromatic polymer has several intriguing properties, but the main barrier is its poor mechanical stability, brittleness and low processability. Polyindole (PIN) films are often particularly rigid, brittle, insoluble,

High performance biopolymer blend nanocomposites derived from cashew gum/polyvinyl alcohol/boehmite for flexible electronic devices

“…Moreover, the broadness of the composites decreases while the intensity of the XRD peaks of nanoparticles in the composite increases with the loading of boehmite. The average crystalline size () of the blend nanocomposite is calculated by the Scherrer formula where is Scherrer constant (= 0.89), and is the full width at half height (in radian) 19 …”

“…where k is Scherrer constant (= 0.89), and β is the full width at half height (in radian). 19 The average crystallite size of nanoparticles in the 7 wt% blend nanocomposites is found to be 41 nm. The successful incorporation of boehmite within the macromolecular chains of polymer blend is evident from the appearance of characteristic peaks of boehmite in the XRD pattern of the nanocomposite.…”

“…Many advantages exist for inorganic metal-based nanoparticles, and by incorporating them with a polymer matrix, many astonishing structural, morphological, thermal, optical, and electrical properties can be improved, 19,20 provided that they are well dispersed. 21 Boehmite, chemically aluminum oxyhydroxide (AlOOH), has demonstrated water dispersibility in this scenario.…”

Effect of boehmite nanoparticles on structural, optical, thermal, mechanical and electrical properties of poly (methyl methacrylate) nanocomposites for flexible optoelectronic devices

“…The polarization characteristics of virgin materials are usually enhanced with the incorporation of nanomaterials into electrolytes and electrodes, resulting in enhanced electrochemical characteristics of energy-storing devices. [11][12][13] Acrylic-based polymers are one of the major thermoplastic polymers due to their excellent thermal, mechanical and optical properties. 14,15 Among acrylic polymers, poly (methyl methacrylate) (PMMA) and poly (butyl methacrylate) are extensively investigated due to their high surface clearance, good transparency and mechanical properties.…”

Improvement in structural, thermal, charge transport and mechanical properties of poly (methyl methacrylate)/polyindole composites for optoelectronic devices

“…Composites have gained importance over other materials due to their easy processability [3], enhanced optical [4] electrical, mechanical and dielectric properties [5]. Polymer composites are suitable for use in technical fields and daily life because they are lightweight, have higher chemical and thermal resistance, and have better electrical properties [6,7]. Nowadays, scientists have a superior interest in polymer composites with enhanced mechanical and electrical properties due to their fascinating applications.…”