High Performance HTPB-Based Energetic Nanomaterial with CuO Nanoparticles

Abstract

This work describes the first example to demonstrate the enhancement of performances of composite highly energetic materials by mean of employing standard CuO nano-powder as burning rate catalyst in comparison to micro-fillers. The solid composite propellants with CuO microparticles are less stable due to oversensitivity to pressure variations, but the nano-structured composite propellant yields high stable burning rates over a broad pressure range. In addition, the incorporation of CuO nanoparticles in the formulations of these energetic materials also improves their combustion and thermal properties, according to the characterization obtained by differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA). These results indicate the excellent benefits found in using these nanoparticles as additive for solid rocket propulsion applications.

Recent Advancements in Study of Effects of Nano Micro Additives on Solid Propellants Combustion by Means of the Data Science Methods

“…The hidden layer consists of 5 neurons and the output layer contains 1 neuron for burn rate. Model-3 was trained using 103 data points taken from [10][11][12][13][14][15][16] . The data points are drawn from experiments carried out using different catalysts.…”

“…No such relation is reported in the literature as per our understanding. The trained ANN model-3 was validated by predicting the burn rate for a separate set of data points taken from [10][11][12][13][14][15][16] , which were not used in training set. This is shown in Fig.…”

“…The analytical platform (Loginom) used for creating and operating the model was developed by BaseGroup Labs 6 . The data used for training the model and validation were taken from either published literature [7][8][9][10][11][12][13][14][15][16] or studies carried out at Energetic Materials Research Lab, IISc Bangalore.…”

Correlation of Efficient Dispersion and Catalytic Performance of Nanocombustion Catalysts in Energetic Materials: A Case Study of the Nanocopper Oxide Catalyst with Superfine Ammonium Perchlorate

“…Commonly used nanocombustion catalytic materials include nanometals, nanoalloys, nanometal oxides, nanoorganometallic compounds, etc. Compared with traditional combustion catalytic materials, nanocatalytic materials have excellent performance owing to their small particle size, more catalytic active sites, and high activity. − The application of nanocatalytic materials greatly improves the performance of energetic materials by improving the detonation performance of explosives, increasing the burning rate of propellants, increasing the initial velocity of gun propellants, and improving the luminous intensity of pyrotechnics. − The nanocatalytic materials are expected to promote greater progress in the field of energetic materials as science and technology evolve. However, the use of nanocatalytic materials in energetic materials also suffers from a serious problem, that is, the strong agglomeration phenomenon of nanocatalytic materials seriously restricts their excellent catalytic properties.…”

“…, the ion flows with m/z of15,16,17,18,30,32, 35, 36, 38, 44, 46, 51, 52, 69, 70, 72, and 74 were detected in superfine AP, implying the production of NH, O/NH 2 , OH/NH 3 , H 2 O/NH 4 , NO, O 2 / N 2 O 4 , Cl, HCl, N 2 O, NO 2 , ClO, HOCl, ClO 2 , and Cl 2 during the thermal decomposition of superfine AP. The ion flow of different substances shows a distinct large peak at 2500 s, representing the high-temperature decomposition peak of superfine AP.…”