Publications by authors named "Ismawati Palle"
Article Synopsis
- Nitrocellulose (NC) is derived from lignocellulose materials like cotton and wood pulp and is used in various applications, including biodegradable plastics and propellants, with this study specifically focusing on its production from recycled egg carton pulp.
- Various nitration durations (40, 50, and 60 minutes) and KOH concentrations (0.6 M, 1.0 M, and 1.5 M) were tested to determine their effects on NC properties, revealing that 50 minutes led to the highest nitrogen content and desirable structural characteristics.
- The addition of 50-minute nitrated NC as an accelerant in rice husk charcoal briquettes increased the calorific value significantly, demonstrating its potential for improving
The compatibility between isocyanate and polyol plays an important role in determining a polyurethane product's performance. This study aims to evaluate the effect of varying the ratios between polymeric methylene diphenyl diisocyanate (pMDI) and liquefied wood polyol on the polyurethane film properties. wood sawdust was liquefied in polyethylene glycol/glycerol co-solvent with HSO as a catalyst at 150 °C for 150 min.
View Article and Find Full Text PDFA series of new hexasubstituted cyclotriphosphaze derivatives containing Schiff base linkages were successfully synthesized and characterized. The series contains different terminal substituents of pentyl and tetradecyl. Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (NMR), and carbon, hydrogen, and nitrogen (CHN) elemental analysis were used to characterize the intermediates and final compounds, while the thermal stability of the final compounds is evaluated with a thermogravimetric analysis (TGA) test.
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