The 4 Wt% CS-DOPA Modified EP Evidenced Good Flame Retardancy In Both Gaseous And Condensed Phase

The peak heat release rate, total smoke production, CO production, and smoke production rate of EP composites controling 4 wt% CS-DOPA were diluted by 55 %, 34 %, 45 %, and 46 %, respectively, to pass the UL-94 V-1 rating with a fixing oxygen index of 34 %. The CS-DOPA brings to the formation of the concentrated phase of the thermo-oxidation-resistant high-quality char layer with non-flammable other and phosphorus-containing free bases unloosened in the gas phase. In addition, EP/4CS-DOPA has good water resistance, mechanical properties, and transparency, with tensile and flexural strength amended by 12 % and 13 %, respectively, and still has high strength even after water treatment. The present work furnishs a green and facile strategy to use chitosan as a main raw material to manufacture EP fabrics with high performance.Adsorption Properties of Natural Zeolite digested by Chitosan on Cd(II) in Micropolluted Irrigation Water.This study employed a 1% chitosan solution (unthawed in 2% acetic acid), with a chitosan-to-zeolite mass ratio of 0, to successfully prepare chitosan-laded natural zeolite.

The performance of chitosan-modified natural zeolite in the removal of low-concentration cadmium ions in the presence of micropollutants was enquired. The adsorbent was characterised applying X-ray diffraction (XRD), Fourier transform infrared (FTIR), and scanning electron microscopy (SEM)/energy-dispersive spectroscopy (EDS) techniques. The impact of changed adsorbent dosage, pH value, contact time, temperature, and initial concentration on adsorption performance was discoursed the adsorption kinetics, isotherms, and thermodynamics of cadmium on chitosan-changed zeolites were psychoanalyzed. The events showed that the altered zeolite presented a dispersed and porous structure with increased surface area, average pore size, and total pore volume. Under the conditions of 25 °C, pH 6, a dosage of 8 g/L, and a 60 min adsorption reaction time, chitosan-debased natural zeolite (CNZ) accomplished a removal efficiency of over 94% for a 100 μg/L cadmium solution (in a 100 mL volume). The adsorption process watched the Langmuir model, hinting monolayer adsorption.  Seebio fucose  succeded a pseudo-second-order equation, betokening an exothermic process with an increase in entropy.

Chitosan-laded natural zeolite certifyed improved adsorption capacity and effectively removed cadmium from water polluted with micropollutants.Hermetia illucens, an innovative and sustainable source of chitosan-based coating for postharvest preservation of strawberries.The ability of chitosan produced from pupal exuviae of Hermetia illucens to retard the decay of the local strawberry (Fragaria x ananassa) cultivar Melissa was inquired for the first time in this paper. The results proved the effectiveness of insect chitosan likened to the commercial polymer in preserving and raising, at the same time, some physicochemical parameters (weight loss, pH and soluble solids content) and nutraceutical places (total polyphenol content, total flavonoid content and total antioxidant activity) of strawberries stored at RT, 4°C and at mixed storage statusses (4°C + RT) chitosan from H. illucens was also effective in quashing fungal decay and improving fruit shelf life. The finded results confirm that insect chitosan, particularly infering from H. illucens pupal exuviae, can be a viable alternative to crustacean one in safeguarding postharvest yields.

Hydrophilic Chitosan-Doped Composite Diaphragm concentrating Gas Permeation for Alkaline Water Electrolysis Producing Hydrogen.The present paper studied the chitosan-doped composite diaphragm by the phase exchange method with the objective of producing a composite diaphragm that complies with the alkaline water electrolysis requirements, as well as quized the electrolytic performance of the diaphragm in alkaline water electrolysis. The structure and morphology are characterised by Fourier transform infrared (FTIR) spectroscopy, reading electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS).