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Research Progress of Bonding Agents and Their Performance Evaluation Methods.

Junyan Gan1, Xue Zhang1, Wei Zhang2

  • 1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.

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|January 21, 2022
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Summary

This review discusses bonding agents that enhance propellant performance by improving oxidant-binder interactions. Understanding these agents and their evaluation methods is key for developing advanced propellants.

Keywords:
bonding agentsbonding mechanismevaluation methodpropellant

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Propulsion Technology

Background:

  • Bonding agents are critical additives in propellants, enhancing interfacial interactions between oxidants and binders.
  • Effective bonding prevents dewetting, leading to significant improvements in propellant mechanical properties.
  • Various bonding agents, including alcohol amine, borate ester, aziridine, hydantoin, and neutral polymer types, are utilized.

Purpose of the Study:

  • To review and discuss the bonding mechanisms of different types of bonding agents.
  • To summarize the research progress in the field of propellant bonding agents.
  • To provide insights into evaluation methods for bonding agent performance.

Main Methods:

  • Review of existing literature on bonding agents and their mechanisms.
  • Discussion of various bonding agent categories (e.g., alcohol amine, borate ester, aziridine, hydantoin, neutral polymer).
  • Summary of evaluation techniques: molecular dynamic simulation, contact angle method, in situ loading SEM, characterization analysis, and mechanical analysis.

Main Results:

  • Detailed overview of bonding mechanisms for diverse bonding agents.
  • Compilation of research progress and current understanding of these agents.
  • Categorization and description of key performance evaluation methods.

Conclusions:

  • Bonding agents play a vital role in optimizing propellant performance.
  • A comprehensive understanding of bonding mechanisms and evaluation methods is crucial for future propellant design.
  • This review serves as a reference for researchers developing novel bonding agents and propellants.