Thermoplastic elastomer containing energy and its synthetic method

Abstract

The invention relates to a novel energy-containing thermoplastic elastomer which contains polymethacrylic acid ethyl azidoacetate and its synthetic method. The method comprises the following steps: a hydroxyl terminated liquid polymer is reacted with bromacyl bromide to generate a bromine terminated liquid polymer, then atom transfer radical polymerization of ethyl methacrylate is introduced under the effect of a copper catalyst to synthesize a segmented copolymer, an azide substitution reaction is carried out to obtain the energy-containing thermoplastic elastomer. The energy-containing thermoplastic elastomer has high energy and reversible solidification process, and is a high performance solid propellant and an ideal adhesive for explosives and powders.

Description

Technical field: [0001] The invention relates to an energetic thermoplastic elastomer and a synthesis method thereof. More specifically, it relates to a novel energetic thermoplastic elastomer containing polyethyl azide methacrylate blocks and its synthesis method. Background technique: [0002] In the design and production of high-end weapons, high-energy insensitivity has always been the design goal of explosives and solid propellants, but there is a contradiction between high energy and low sensitivity. In fact, in order to reduce the sensitivity, people tend to reduce the energy of the components at the cost. PBX (Plastic Bounded Explosives) explosives are an important way to solve low sensitivity. When the solid energetic particles in the explosive are coated with a polymer binder, the polymer binder not only protects other energetic components, but also in the explosive The surface mechanical properties of the components, such as elastic modulus, hardness, surface frictio...

AI Technical Summary

Problems solved by technology

Although the binders for traditional PBX explosives have excellent physical and mechanical properties, when the explosive components burn, these non-energetic binders will not significantly increase the energy release of the explosive formulation, so they cannot meet the requirements of high-performance PBX explosives

In addition, traditional adhesives are cross-linked by chemical curing agents. When solid propellants and explosives are decommissioned, they can only be disposed of by burning, which is difficult to recycle and is not conducive to environmental protection.

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