文章信息/Info

Title:

Gradient Tailoring Method and Effect of Nitro Gradiently Distributed Propellant

文章編號:

1674-3962(2022)02-0092-06

作者:

肖忠良1; 2; 丁亞軍1; 2; 李世影1; 2; 趙先正1; 2

（1. 南京理工大學化學與化工學院，江蘇 南京 210094） (2. 南京理工大學 特種能源材料教育部重點實驗室，江蘇 南京 210094）

Author(s):

XIAO Zhongliang1; 2;  DING Yajun1; 2;  LI Shiying1; 2;  ZHAO Xianzheng1; 2

(1. School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China) (2. Key Laboratory of Special Energy Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China)

關鍵詞:

發射藥; 硝基裁剪; 能量釋放漸增性; 武器應用

Keywords:

gun propellant;  nitro tailoring;  progressive burning;  weapon application

分類號:

TQ562

DOI:

10.7502/j.issn.1674-3962.202110029

文獻標志碼:

A

摘要:

針對傳統鈍感、包覆發射藥設計方法存在的固有局限，基于硝化纖維素分子特點和能量釋放過程控制方法，提出了發射藥表層分子（基團）裁剪方法的概念與實現方法，采用該方法制備的發射藥稱之為梯度硝基發射藥（nitro gradiently distributed propellant, NGDP）。該類發射藥是將表層中的硝酸酯基梯度水解脫除，實現發射藥表層硝（酸酯）基梯度增加，從而使得發射藥燃速漸進增加，與鈍感發射藥和包覆發射藥通過增加“惰性”組分實現燃速的漸進增加的方法相比具有本質區別。最后，進一步介紹了梯度硝基發射藥在武器應用中所具有的優越貯存穩定性、內彈道性能和低發射有害現象的特征，證明了所提出新方法的先進性。

Abstract:

In view of the inherent limitations of traditional gun propellant with deterring and coating method, based on the molecular characteristics of nitrocellulose and the basic principle of energy release process control method, the concept and method of surface molecule (functional group) tailoring of propellant were proposed in this paper. The propellant prepared by this method is called nitro gradiently distributed propellant (NGDP). The forming process of the propellants is that, the nitrate esters in the surface layer are hydrolyzed and removed by certain ways, the nitrate esters finally gradiently distribute in the surface layer of propellant. This ideal structure realizes the burning progressivity during propellant burning. It is essentially different with the deterred propellant and coated propellant, which achieves a progressive increase in burning rate by adding deterring agents. Finally, this paper further introduces the characteristics of the NGDP，including its superior storage stability, internal ballistic performance and low emission of harmful phenomena in weapon applications, which proves the advanced nature of the proposed new tailoring method.