Method for preparing low-energy pulse laser explosion cyclonite explosive
A technology of pulsed laser and hexogen, applied in explosives and other directions, can solve the problems of limiting the wide application of laser detonation technology, difficult to meet the energy transmission of optical fiber, poor absorption performance, etc., and achieve the effect of promoting development, increasing absorption, and improving molding performance.
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Embodiment 1
[0021] weighing as figure 2 Add 0.2g of the nano-metal aluminum powder shown in a 500ml beaker, add 100ml of absolute ethanol into the above beaker with a measuring cylinder, and disperse in an ultrasonic mixing device for 30min. Weigh 10 g of RDX powder with a particle size of 20 μm and add it to the absolute ethanol solvent containing aluminum powder, and continue to stir and mix mechanically for 10 minutes. Then weigh 0.3g of PVB polymer adhesive into the solution and continue to stir for 5min. Prepare the RDX composite explosive granules by spray drying and granulating the mixed samples, such as figure 1 As shown, the light absorption of the prepared RDX composite explosive particles is as follows Figure 4 shown. The light absorption efficiency is increased to 80% by introducing the surface plasmon effect of nano-metal aluminum. The mixed explosives were further compressed into 10 Ф4×4mm grain columns, and the 10 samples were tested at 1064nm wavelength, 14ns period,...
Embodiment 2
[0023] Reduction of HAuCl by NaBH 4 Formation of seeded gold nanoclusters, and then putting different numbers of gold seeds into HAuCl 4 In the mixed growth solution of ascorbic acid and weak reducing agent, stand for 7 hours under room temperature and dark environment, just obtain such as image 3 Gold nanorods shown. Prepare a 50 mg aqueous solution containing gold nanorods, add 1 g of RDX powder to the aqueous solution, stir and mix for 10 minutes, then weigh 20 mg of PVA polymer adhesive into the aqueous solution and continue stirring for 4 minutes. The mixed solution is vacuum freeze-dried to remove moisture to obtain RDX composite explosive particles. The mixed explosives were further compressed into 10 Ф5×2mm grain columns, and the 10 samples were tested at 1064nm wavelength, 14ns period, and 1.8J / cm 2 All detonated under the irradiation of pulsed laser energy.
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