Evaluation of Mechanical, Thermal, and Morphological Behaviors of Polyurethane/Mahua Seed Cake Green Composite

Abstract

ABSTRACT:To know the possibility of using Indian butter tree seed waste (mahua seed cake [MSC]) as a filler in the production of value-added product such as polyurethane (PU) green composites, a series of PU composites have been fabricated with varying amounts, namely, 0, 2.5, 5.0, 7.5, and 10 wt%, of MSC, and their effects on the physicomechanical properties such as density, surface hardness, tensile strength, tensile modulus, and percentage elongation at break have been studied. It was found that the tensile strength of the green composites increased from 5.61 to 9.5 MPa and tensile modulus increased from 4.75 to 6.07 MPa with an increase in filler content from 2.5 to 7.5 wt%. The fabricated PU/MSC composites were characterized for structural behavior by Fourier transform infrared spectroscopy and for morphological behaviors by scanning electron microscopy. The chemical resistance of the green composites in different chemical environments has been investigated. The thermal stability and thermal degradation behaviors of composites were performed using thermogravimetric analysis. The microcrystalline parameters such as crystallite size (<N>) and lattice strain (g, %) have been computed using wide-angle X-ray scattering data. Based on these parameters, the structure-property relationship of the PU/MSC green composites has been established. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2015, 0, 21598; View this article online at wileyonlinelibrary.com.

Polyurethane green composites for the treatment of boron present in the oil produced water

“…2.2 Synthesis of PU/Algae biocomposites 50 ml of methyl iso butyl ketone (MIBK) solvent is placed in the necked round bottom ask. Calculated amounts of tolylene 2,4 disocyanates (TDI), castor oil (CO) and 3 drops of catalyst dibutyltin dilaurate (DLDBT) are added to MIBK solvent as per standard procedure (Madhukar, et al, 2015). The ask is then kept on digital hot plate tted with a condenser.…”

“…The experimental results are slightly higher than theoretical results. This is due to the aggregation of ller at a higher amount of the ller content and maybe the ller not wetted completely in the PU matrix (Madhukar, et al, 2015). The surface area of the uniform mass of specimens is decreases with an increase in the ller content.…”

Polyurethane Green Composites: Synthesize, Characterization and Treatment of Boron Present in the Oil Produced Water

“…50 ml of methyl iso butyl ketone (MIBK) solvent is placed in the necked round bottom flask. Calculated amounts of tolylene 2,4 disocyanates (TDI), castor oil (CO) and 3 drops of catalyst dibutyltin dilaurate (DLDBT) are added to MIBK solvent as per standard procedure [6,7]. The flask is then kept on digital hot plate fitted with a condenser.…”

“…Indian butter tree seed waste (mahua seed cake [MSC]) is sued as filler and a series of PU composites have been fabricated with varying amounts, namely, 0, 2.5, 5.0, 7.5, and 10 wt%, of MSC. It was found that the tensile strength of the green composites increased from 5.61 to 9.5 MPa and tensile modulus increased from 4.75 to 6.07 MPa with an increase in filler content from 2.5 to 7.5 wt% [7].…”

“…Synthetic wastewater is prepared simulating the range of boron concentrations in produced water. Four operating parameters pH (3)(4)(5)(6)(7)(8)(9)(10)(11), charge loading (1200-3600Ah/m 3 ), contact time (15-90 min) and concentration (10-30 mg/L) are selected and their optimum conditions investigated through electrocoagulation process [27]. Various studies reported on the usage of polymer composites for the removal of boron from aqueous solutions.…”