Carborane plasticized hydrocarbon fuel-rich propellant

Abstract

The invention belongs to the field of fuel-rich propellants for solid ramjet engines, and provides a carborane plasticized hydrocarbon fuel-rich propellant, which takes a carborane derivative with weak polarity as a plasticizer. The carborane plasticizer is a carborane ester derivative and/or a carborane ether derivative, has a rigid boron cage structure and a flexible alkane chain structure whichhave high calorific value characteristics, has good compatibility with propellant components and is not sublimated and migrated. The process performance of the propellant is improved, the energy performance and the combustion performance of the propellant are improved, the generation of a condensed phase is reduced, the technical requirements of a solid ramjet for high heat value, excellent ignition performance, high combustion efficiency, low condensed phase, clean gas and low residue of the propellant are met.

Description

technical field [0001] The invention belongs to the field of fuel-rich propellants for solid ramjet engines, in particular to a carborane plasticized hydrocarbon-rich fuel propellant. Background technique [0002] The solid-impulse engine uses oxygen in the air as an oxidant, which greatly increases the energy of the propellant; it adopts the principle of internal surface compression intake, omitting complex structures such as rotating parts, and the engine structure is simplified. Therefore, the missile powered by the solid impulse engine has the characteristics of small size, light weight, and long range. It can realize full powered flight and enhance the missile's defense penetration capability and terminal attack capability. [0003] The solid-impulse engine uses fuel-rich propellant as the power source, and the fuel content reaches 30-50%. Therefore, fuel performance is one of the key factors that determine whether the potential excellent performance of the solid-impuls...

AI Technical Summary

Problems solved by technology

[0007] The study found that the carborane plasticizer containing unsaturated bonds will react with the propellant components during the charging process and seriously affect the process performance of the propellant. Will react and affect propellant life

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