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用于固体推进剂的可光固化聚乙烯粘合剂的设计,合成和性能

Minghao Zhang¹, Min Xia¹, Tao Guo¹

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

Macromolecular rapid communications

|February 27, 2025

概括

研究人员开发了两个可光固的结合剂,即基终结聚乙烯 (AUPET) 和烯酸终结聚乙烯 (PUA),用于增材制造固体推进剂. PUA提供快速固化,而AUPET提供增强的灵活性,添加醇.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
添加剂制造添加剂制造添加剂制造

背景情况:

乙烯氧化物-四基共聚乙烯 (PET) 是固体推进剂中常见的粘合剂.
光固化粘合剂对于先进的增材制造技术至关重要.

研究的目的:

为了合成和描述基于PET的新型可光固化粘合剂,用于增材制造.
评估合成的结合剂的光聚合动力学和机械性能.

主要方法:

从PET合成基终结聚乙烯 (AUPET) 和烯酸终结聚乙烯 (PUA).
研究光聚合的外热行为和动力学.
在各种固化条件下测试机械性能 (抗拉强度,破裂时延长).

主要成果:

与AUPET相比,PUA的光聚合率更快,使其能够快速光固化.
在自固化过程中,PUA薄膜具有脆性 (1.18 MPa的抗拉强度,破裂时81.07%的延长).
用醇固化AUPET的柔性显著增强 (0.37 MPa的抗拉强度,587.49%的破裂延伸).
纳入三酸环和醇的存在改善了机械性能.

结论:

AUPET和PUA都是可行的可光固化结合剂,用于增材制造固体推进剂.
粘合剂的选择取决于所需的特性:PUA用于速度,AUPET与醇用于灵活性.
氨酸环结合提供了一条进一步提高粘合剂性能的途径.

关键词:

添加剂制造添加剂制造添加剂制造粘合剂粘合剂粘合剂乙烯氧化物-四基合聚乙烯.摄影固化是一种光学固化.

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