Processing characteristics and mechanical and electrical properties of chlorinated styrene–butadiene rubber/fly ash composites

Abstract

This work focused on the utilization of waste fly ash (FA) as filler in the reinforcement of chlorinated styrene-butadiene rubber (CSBR) with reference to their processing characteristics, morphological, thermal, and mechanical properties, solvent resistance, and electrical resistivity measurements. Rheometric properties such as optimum cure time and scorch time decreases with increase in filler content, whereas maximum torque increases up to 30 phr for FA particles. An appreciable increase in glass transition temperature has been observed from differential scanning calorimetric study. The mechanical properties such as tensile and tear strength, modulus, hardness, compression set, and heat buildup increases, whereas elongation at break and resilience decreases with loading of filler. The observed variation in mechanical properties has been supported by the fractography of the composites obtained by scanning electron microscopy. Variation in the bound rubber formation in CSBR/FA composite has been studied. The bound rubber content decreases with increasing extraction temperature, and its activation energy is also calculated from the Arrhenius plot. The electrical properties such as alternating current conductivity, dielectric constant, and dissipation factor are higher than that of CSBR, and the values increase with increase in the content of FA in the composites.

Synthesis, characterisation and flame, thermal and electrical properties of poly (n-butyl methacrylate)/titanium dioxide nanocomposites

“…6b, c, it can be observed that T g and T m of PBMA nanocomposite constantly increased with increase in the concentration of nanoparticles. Several researchers suggest that the addition of nanoparticles into the polymer matrix leads to strong interfacial bonding between the polymer chain and the nanoparticle surfaces and therefore the interfacial layer affects the glass transition temperature of the polymer matrix [21]. In the present study, nanocomposites are synthesised by in situ polymerisation process, where the monomers are first absorbed on the surface of TiO 2 nanoparticles.…”

Influence of polyvinylpyrrolidone on optical, electrical, and dielectric properties of poly(2-ethyl-2-oxazoline)-polyvinylpyrrolidone blends

“…In the past, polymer blending has been used for improving electrical and mechanical properties of polymer films in various applications [23][24][25][26][27][28][29][30][31][32][33][34][35][36]. The production of petroleum-based polymers and their utilization has increased significantly.…”

Synthesis, characterization, and properties of cashew gum graft poly(acrylamide)/magnetite nanocomposites

“…Research in the field of such polymer mainly focused on the modification of existing polymers, so that their visibility can further be improved. One of the successful approaches has been preparing the composite polymer network containing different metal oxide nanoparticles such as Fe 3 O 4 , MnWO 4 , TiO 2 , and fly ash composites . Among these, magnetite (Fe 3 O 4 )‐based polymer composites have attracted considerable attention especially in the field of polymer chemistry and physics because of their various applications such as magnetic recording media, photonic crystallites, sensors, and actuators.…”