A kind of composite plasticizer and preparation method for cl-20 base casting PBX explosive

Abstract

The invention provides a composite plasticizer used for a CL-20-based cast PBX explosive, and preparation method thereof. The composite plasticizer contains an ester compound and liquid paraffin; the general formula of the ether compound is shown in the description, and R1 and R2 in the formula are respectively selected from C6-C12 linear or branched alkyl groups. The composite plasticizer comprises, by weight, 1-99% and preferably 20-80% of the ether compound, and 1-99% and preferably 20-80% of the liquid paraffin. The composite plasticizer has the advantages of good intersolubility with HTPB, low water content, high purity, high combustion heat and good vacuum stability, and the CL-20-based cast PBX explosive applying the composite plasticizer has the advantages of high solid content, adjustable mechanical performances, good usability, short preparation time and low energy consumption.

Description

technical field [0001] The invention belongs to the pouring field of CL-20-based PBX explosives, in particular to a composite plasticizer for CL-20-based pouring PBX explosives, and a preparation of a composite plasticizer for CL-20-based pouring PBX explosives method, and the composite plasticizer prepared by the preparation method. Background technique [0002] CL-20 (hexanitrohexaazaisowurtzitane) is a new type of clathrate compound with high density, high energy, high detonation pressure and high detonation velocity discovered and synthesized in recent years. It is the highest energy elemental explosive used so far. However, when CL-20 is applied to the process of pouring PBX explosives, CL-20 will be dissolved in commonly used ester plasticizers, resulting in great energy loss and potential safety hazards. Plasticizers currently used in cast PBX include dioctyl adipate, dibutyl phthalate, etc., which have greater solubility for CL-20. [0003] Due to the above shortco...

AI Technical Summary

Problems solved by technology

However, this method not only consumes a lot of energy and time, but also disagrees whether the small molecular impurities and moisture in the processed materials have reached the minimum level.