Study of Optical Properties, Thermal Kinetic Decomposition and Stability of Coated PETN-Litholrubine nano-Composite via Solvent/None-Solvent Method Using Taguchi Experimental Design

In this research, in order to coating PETN particles, nano-pigment of redlitholrubine B 57:1 (NLR) was used in a surfactant environment of cetyltrimethylammonium bromide (CTAB) using solvent/none-solvent (water-acetone) method. Afterstructural studies of PETN-NLR nanocomposite by infrared (FT-IR) and field emissionscanning electron microscopy-Energy dispersive X-ray (FESEM-EDX) methods,Taguchi statistical design method was used to investigation and optimization of lightreflectance of nanocomposite at 532 nm. The effect of four factors of NLRconcentration, solvent flow rate, surfactant type and surfactant concentration in threelevels on light reflection was investigated and analysis of variance (ANOVA) showedthat NLR concentration with the participation of 67.24 percent had highest effect.Optimal conditions to achieve a minimum light reflectance were obtained of NLR 5wt%, solvent flow rate 1 mLmin-1, surfactant of CTAB and surfactant concentration1×10-3molLit-1. The lowest light reflectance by analyzing the data variance for optimumconditions was estimated 4.67 ± 2.14%. Also the mean experimental result for lightreflectance of the nanocomposite under optimum conditions was obtained 5.54 percent.Follows, thermal behavior and vacuum stability of the optimal sample was investigatedthat the results, due to the no significance difference in the melting point and thethermal decomposition mechanism of the nanocomposite compared to pure PETN,indicating the compatibility of NLR and CTAB with PETN