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Synthesis of Three Novel Laurylamine-Derived Long-Chain Alkyl Bonding Agents and Their Interactions with RDX

  1. Yun-fei Liu1,2,*,
  2. Yu Chen1,2,
  3. Liang Shi3,
  4. Wei-shang Yao1,2

Article first published online: 19 JAN 2012

DOI: 10.1002/prep.201100014

Issue

Propellants, Explosives, Pyrotechnics

Propellants, Explosives, Pyrotechnics

Volume 37, Issue 1, pages 69–76, February 2012

Additional Information

How to Cite

Liu, Y.-f., Chen, Y., Shi, L. and Yao, W.-s. (2012), Synthesis of Three Novel Laurylamine-Derived Long-Chain Alkyl Bonding Agents and Their Interactions with RDX. Propellants, Explosives, Pyrotechnics, 37: 69–76. doi: 10.1002/prep.201100014

Author Information

  1. 1

    Academy of Propellants and Explosives, Beijing Institute of Technology, Beijing 100081, P. R. China

  2. 2

    School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China

  3. 3

    Guangzhou Kingfa Science & Technology Co. Ltd, Guangzhou, 600143, P. R. China

*Academy of Propellants and Explosives, Beijing Institute of Technology, Beijing 100081, P. R. China

Publication History

  1. Issue published online: 15 FEB 2012
  2. Article first published online: 19 JAN 2012
  3. Manuscript Revised: 16 MAR 2011
  4. Manuscript Received: 12 FEB 2011

Funded by

  • National Natural Science Foundation of China. Grant Number: 51073025
  • Youth Fundation of Propellants and Explosives of China

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Keywords:

  • Laurylamine;
  • Bonding agents;
  • RDX;
  • Interactions;
  • Mechanical properties

Abstract

Three novel long-chain alkyl bonding agents including 1,1′-dodecylimino-bis[3-[bis(2-hydroxyethyl)amino]-2-propanol (DHAP), 1-acetyl-5-dodecyl-octahydro-1,5-diazocine-3,7-diol (ADODD) and 1,3-bis(dodecylimino)-5,5-dimethyl-2,4-imidazolidinedione (DDID) were synthesized by modification of laurylamine. Interaction energies between bonding agents and RDX were calculated and compared using the molecular dynamics method. Effects of coating by different bonding agents on characteristic absorption peaks of RDX were analyzed by micro-infrared spectroscopy. The adhesion degrees of different bonding agents on the surface of RDX solid particles were calculated by XPS methods. The three prepared bonding agents were added to the HTPB/RDX/Al propellant and their effects on σ, εm, εb and Φ (the adhesion index between filling particles and binder matrix) value of propellant were studied. Simulation and experimental results showed that those three types of long-chain alkyl bonding agents exhibit a strong interaction with RDX, with highest interaction potencial observed for DHAP, followed by DDID and ADODD. In addition, the current study demonstrated that results obtained by molecular dynamics simulation were in very good agreement with the experimental data.

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