Design and Synthesis of Light-Curable Energetic Binders

Jing YUAN; Xiangyang LIN; Yang PENG; Cheng TAN

doi:10.12382/bgxb.2022.0315

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Design and Synthesis of Light-Curable Energetic Binders

更新时间：2025-08-18

- Design and Synthesis of Light-Curable Energetic Binders
- Acta Armamentarii Vol. 44, Issue 7, Pages: 2023-2032(2023)
- 作者机构：
  
  1. 南京理工大学化学与化工学院, 江苏南京 210094
  2. 京东方显示技术有限公司, 江苏南京 210033
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2022.0315
  CLC：
- Received：27 April 2022，
  
  Online First：07 August 2023，
  
  Published：30 July 2023
- 稿件说明：
移动端阅览
Jing YUAN, Xiangyang LIN, Yang PENG, et al. Design and Synthesis of Light-Curable Energetic Binders[J]. Acta Armamentarii, 2023, 44(7): 2023-2032.
DOI：

Jing YUAN, Xiangyang LIN, Yang PENG, et al. Design and Synthesis of Light-Curable Energetic Binders[J]. Acta Armamentarii, 2023, 44(7): 2023-2032. DOI： 10.12382/bgxb.2022.0315.

摘要

为满足复杂结构固体推进剂在增材制造成型及能量方面的需求

以环氧氯丙烷为原料

经三氟化硼乙醚引发剂体系阳离子开环聚合

叠氮化钠叠氮化反应

异氰酸酯类化合物及丙烯酸羟乙酯亲核加成反应

合成3种光固化含能预聚物。产物结构通过傅里叶红外光谱、核磁共振氢谱和凝胶渗透色谱进行表征测试。通过高低温差示扫描量热分析对预聚物的热稳定性和玻璃化转变温度进行测试

预聚物的热聚合起始温度均为140℃

热分解起始温度均为220℃

玻璃化转变温度分别为-43.8℃、-52.7℃和-55.8℃。将3种预聚物与稀释剂和光引发剂复配制得液态光敏树脂

并将其固化成膜进行力学性能测试

其中叠氮聚醚聚氨酯丙烯酸酯GAP/IPDI/HEA-PUA固化膜抗拉强度为0.38MPa

断裂延伸率为470%

满足推进剂用粘合剂基本力学性能要求

是一种具有应用前景的新型光固化含能粘合剂。

Abstract

To meet the demand of solid propellants with complex structuresin additive manufacturing and energy

epichlorohydrin was used as the raw material for cationic ring opening polymerization by boron trifluoride ethyl ether initiator system

azide reaction by sodium azide

isocyanate compound

and hydroxyethyl acrylate nucleophilic addition reaction.Three kinds of energetic binderprepolymers with light-curing properties were synthesized.The structures of the products were characterized by Fourier infrared spectroscopy

nuclear magnetic resonance hydrogen spectroscopy

and gel permeation chromatography. The thermal stability and glass transition temperature of the prepolymers were tested by high and low temperature differential scanning calorimetry analysis.The thermal polymerization onset temperature of the prepolymers was 140℃

the thermal decomposition onset temperature was 220℃

and the glass transition temperatures were -43.8℃

-52.7℃ and -55.8℃

respectively. The three prepolymers were compounded with diluent and photoinitiator to obtain a liquid photosensitive resin

and the cured film was further prepared and tested for mechanical properties

in which the tensile strength of GAP/IPDI/HEA-PUA cured film was 0.38MPa and the elongation at break was 470%

meeting the basic mechanical property requirements of adhesives for propellants

which is a new type of UV-curable energetic binders with practical applications.

关键词

Keywords

references

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