含能材料2025，Vol.33Issue(8)：829-835,7.DOI:10.11943/CJEM2025132
新型中性大分子键合剂的合成与性能
Synthesis and Properties of Novel Neutral Macromolecular Bonding Agents
蓝相涛 1张平安 1袁剑民 2邓剑如1
作者信息
- 1. 湖南大学化学化工学院,湖南 长沙 410082
- 2. 湖南大学材料科学与工程学院,湖南 长沙 410082
- 折叠
摘要
Abstract
To achieve uniform structural composition of neutral macromolecular bonding agents and enhance their comprehen-sive performance,a novel monomer,cyanoethyl acrylate(CEA),was designed and synthesized.Through free radical copoly-merization with hydroxyethyl acrylate(HEA),a new type of neutral macromolecular bonding agent was prepared.The struc-tures of monomers and polymers were characterized by Fourier transform infrared spectroscopy(FTIR)and nuclear magnetic res-onance(NMR),and the hydroxyl value and glass transition temperature(Tg)were determined.The bonding agent was applied in NEPE high-energy propellant formulations to investigate its impact on the process and mechanical properties.Results show that CEA and HEA exhibit matched polymerization reactivity,enabling the production of structurally homogeneous copolymers with-out controlling the feed method.Compared to traditional neutral bonding agents,this bonding agent reduces the yield value of propellant slurry to 74.4 Pa and apparent viscosity to 337 Pa·s,making a notable improvement of processing performance.The propellant grain achieves tensile strength of 0.98 MPa and maximum elongation of 70.1%at ambient temperature,representing 22.5%and 27.5%improvements respectively.关键词
固体推进剂/中性键合剂/自由基共聚/工艺性能/力学性能Key words
solid propellant/neutral bonding agent/free radical copolymerization/processing performance/mechanical properties分类
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蓝相涛,张平安,袁剑民,邓剑如..新型中性大分子键合剂的合成与性能[J].含能材料,2025,33(8):829-835,7.
