Heavy metals are usually released into water bodies from industrial/domestic effluents such as metal plating industries, mining and tanneries. Adsorption is a fundamental process in the physiochemical treatment of wastewaters because its low cost. Great efforts have been made to use economically efficient unconventional adsorbents adsorb heavy aqueous solutions, plant wastes agricultural waste. Biochar mixed with chitosan after crosslinking can be casted membranes, beads solutions which...

This study demonstrates the technical viability of producing low-density flexible polyurethane foam (14 kg/m³) at low vacuum pressure (600 mbar) using both conventional polyether polyol (Polyol-1) and a special (Polyol-2) with variable foaming (VPF) technology. The made Polyol-2 exhibited superior mechanical properties, including increased elongation, resilience, softness, compared to Polyol-1. SEM analysis revealed that had more open, irregular cell structure, contributing improved...

PU foam, a soft, affordable, and easily accessible mattress material, has both advantages disadvantages. Despite having wider pores more open-cell structure it commonly faces criticism for causing body heat retaining moisture, which can lead to bacterial growth allergic reactions. This study investigates the impact of bamboo gelatin filler loading on wicking property foam by using discontinuous foaming process. Foams with fillers were prepared at 2%,4% 8% weight concentrations, respectively,...

Abstract In this study, the physiomechanical properties of carboxymethylcellulose sodium salt (Na‐CMC salt) filler‐loaded foam and its impact on wicking capacity were investigated in juxtaposition with increasing tin concentration. According to study's findings, standard unfilled demonstrated no at all, while flexible PU filled Na‐CMC salt, even low porosity subpar mechanical traits, displayed heights 4 mm, 3.4 2.8 mm test specimens thicknesses 6 8 10 mm. Moreover, a higher level exhibited...

This study investigates the potential of gelatin films as a biodegradable material for food preservation and heavy metal ion removal. Gelatin, protein derived from animal collagen, was dissolved in distilled water to form solution casted films. The were evaluated their swelling behavior, solubility food, moisture content, thickness, biodegradability. results showed that completely soluble within 3 hours, with 29 ± 1.6%. UV-visible light absorbance ranging 280 480 nm maximum at 420 nm. also...

PU foam is one of the softest, most easily accessible, and affordable mattress materials. In foam, wider pores a more open-cell structure have both advantages drawbacks. Despite having fewer cells does not control airflow very effectively commonly faces criticism for causing body heat retaining moisture. A warm, humid climate because stored moisture sweat functions as haven bacteria germs encourages proliferation dust mites contributing to excessive odour allergic reactions. This study aims...

ABSTRACT This study investigates the enhancement of biodegradable gelatin films through incorporation glycerol as a plasticizer, and citric acid zinc oxide cross‐linkers. The results showed notable improvements in various properties, including solubility, swelling behavior, thickness, pH, biodegradability, both mechanical thermal characteristics. demonstrated complete water solubility UV–visible light absorbance 280–480 nm range. Soil burial tests indicated gradual weight loss over 15 days,...

Abstract Ethyl acrylate (EA), Vinyl imidazole (VI), and their binary mixture have been copolymerized onto rayon in aqueous medium by mutual method using γ‐radiation. The graft yield has determined as a function of different reaction parameters such total dose, concentration vinyl monomers, amount water. Effect surfactant (1‐octane sulfonic acid, sodium salt) studied on the percentage grafting EA, VI, (EA + VI). A plausible mechanism suggested to explain observed behavior grafting. Water...

The environment sensitivity of organic semiconductors may change their molecular structure and hence optical properties. Exploiting this concept, experiments were performed on a green light emitting material bis(8-hydroxy quinoline)Zinc, (Znq 2 ) used in diodes (OLEDs). Thin films deposited at varying deposition parameters, properties compared. We investigated that as have significant component Znq tetramer out two known forms, is, dihydrate anhydrous 4 , the lower rates higher content....

Novel chitosan membranes crosslinked with glutaraldehyde, oxalic acid, and succinic acid were synthesized analyzed as a sorbent for removing copper (Cu 2+ ) nickel (Ni ions.In the present study, sorption behavior respect to initial metal ion concentration contact time has been investigated.The obtained results clearly indicate that an increase in of ions increases while uptake decreases simultaneously.From kinetic studies carried out using Langmuir isotherm model, maximum adsorption 0.46...

The production cost of flexible polyurethane foam is significantly dependent on the polyol, which constitutes largest percentage materials used in with characteristics to induce superior mechanical properties. Suitable fillers that are relatively cheap can be introduced as replacement for polyol. Certain compositions filler have deleterious effect some relevant properties foam. This paper investigates Effects Variable Pressure Foaming functionality and structure property correlation using...

Abstract This study investigates the effects of variable pressure conditions (550 and 1013 mbar) on physico‐mechanical structural properties flexible polyurethane foam, incorporating different compositions calcium carbonate (CaCO 3 ) filler. The objective is to achieve sustained mechanical foam while reducing costs through foaming technology. With CaCO filler concentrations ranging from 20 100 parts per hundred (pphp) polyol, it was found that produced at low demonstrated improved resilience...

In this study, gelatin films were prepared by dissolving in distilled water with mechanical stirring, followed casting the solution into films. The biodegradability of these was confirmed through soil burial tests, and their rapid dissolution evident, a measured solubility 29±1.6%. structural integrity thermal stability characterized using UV FTIR. exhibited significant UV-visible light absorbance, peak at 300 nm within 280 to 480 range. FTIR spectra revealed characteristic amide peaks...

The organic small molecules like Bis (8-hydroxy quinoline) Zinc, (Znq2), used in light emitting diodes (OLEDs) are sensitive to environment species moisture and air. Using characterization tools photoluminescence (PL), FTIR DSC, we investigated that as deposited films of Znq2 have a significant component tetramer less dihydrate component. stability at higher deposition rates may be due tetramer.