Binder for thermoplastic explosive

Abstract

The invention discloses a binder for a thermoplastic explosive, and is mainly used for solving the problem that oil is impregnated in thermoplastic explosives and explosives flow under a condition of environmental tests in the prior art. The thermoplastic explosive consists of 39%-65% of an ethylene-vinyl acetate copolymer (EVA), 2%-6% of liquid paraffin, 15%-18% of No.80 microcrystalline wax, 1%-9% of fluorine oil and 25%-37% of a plasticizer, wherein the melting point temperature of the ethylene-vinyl acetate copolymer (EVA) is selected to be 85-90 DEG C, and the plasticizer is dioctyl sebacate (DOS) or dioctyl adipate (DOA). According to the invention, the phenomemon of liquid seepage of grain liquid is improved, the liquid seepage value is reduced by 100%, the problem that the explosive cannot be formed by itself at a temperature of 70 DEG C is solved, requirements of environmental adaptability of warheads are met, and safety hidden dangers of the warheads in complex environments such as transportation environments, storage environments, battlefield environments and the like are reduced. The preparation process is simple in process and low in cost and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to a binder suitable for thermoplastic explosives. Background technique [0002] In order to achieve the goal of "high-efficiency damage", conventional weapons need to further develop ammunition with high lethality and explosive power. The problem of charge penetration safety is becoming more and more prominent. Improving the binder system is one of the key technologies in the design of explosive penetration stability. In recent years, thermoplastic binder systems have been widely used in China, but the binder system During the high-low temperature cycle test of the system explosives, the explosives in the high-temperature section softened and formed and oil leaked, and could not pass the high-low temperature cycle test assessment. 201318008753.3), composed of 20% ethylene-vinyl acetate copolymer, 28% hydroxyl-terminated polybutadiene, 30% diphenylisooctyl phosphate, 22% dioctyl sebacate, the binder is used in explosives In the ...

AI Technical Summary

Problems solved by technology

[0002] In order to achieve the goal of "high-efficiency damage", conventional weapons need to further develop ammunition with high lethality and explosive power. The problem of charge penetration safety is becoming more and more prominent. Improving the binder system is one of the key technologies in the design of explosive penetration stability. In recent years, thermoplastic binder systems have been widely used in China, but the binder system During the high-low temperature cycle test of the system explosives, the explosives in the high-temperature section softened and formed and oil leaked, and could not pass the high-low temperature cycle test assessment. 201318008753.3), composed of 20% ethylene-vinyl acetate copolymer, 28% hydroxyl-terminated polybutadiene, 30% diphenylisooctyl phosphate, 22% dioctyl sebacate, the binder is used in explosives In the formula, liquid seeps out of the formed powder column after being placed for a certain period of time, and when the environmental adaptation test is carried out, the explosive itself cannot be formed at 70°C, and there is a phenomenon of free flow. If the warhead is equipped with complex environments such as transportation, storage, and battlefield There are safety hazards under