Preparation of Graphene Oxide-modified Thermal Insulation Layer and Its Anti-plasticizer Migration Performance

LU Zhe-hong; YU Sheng-quan; LIU Chen-lu; HE Lin-zhe; SUN Lu; HU Yu-bing; JIANG Wei

doi:10.14028/j.cnki.1003-3726.2026.26.021

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Preparation of Graphene Oxide-modified Thermal Insulation Layer and Its Anti-plasticizer Migration Performance

更新时间：2026-05-19

- Preparation of Graphene Oxide-modified Thermal Insulation Layer and Its Anti-plasticizer Migration Performance
- Polymer Bulletin (2026)
- 作者机构：
  
  河南大学　化学与分子科学学院　开封　 475004
  河南大学　纳米科学与工程研究院　开封　 475004
  南京理工大学化学与化工学院　国家特种超细粉体工程技术研究中心　南京　 210094
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2026.26.021
  CLC：
- Received：15 January 2026，
  
  Accepted：12 February 2026，
- 稿件说明：
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鲁哲宏, 余生泉, 刘晨露, 贺霖哲, 孙露, 胡玉冰, 姜炜. 氧化石墨烯改性绝热层的制备及其抗增塑剂迁移性能. 高分子通报, doi: 10.14028/j.cnki.1003-3726.2026.26.021

Lu, Z. H.; Yu, S. Q.; Liu, C. L.; He, L. Z.; Sun, L.; Hu, Y. B.; Jiang, W. Preparation of graphene oxide-modified thermal insulation layer and its anti-plasticizer migration performance. Polym. Bull. (in Chinese), doi: 10.14028/j.cnki.1003-3726.2026.26.021
鲁哲宏, 余生泉, 刘晨露, 贺霖哲, 孙露, 胡玉冰, 姜炜. 氧化石墨烯改性绝热层的制备及其抗增塑剂迁移性能. 高分子通报, doi: 10.14028/j.cnki.1003-3726.2026.26.021 DOI：

Lu, Z. H.; Yu, S. Q.; Liu, C. L.; He, L. Z.; Sun, L.; Hu, Y. B.; Jiang, W. Preparation of graphene oxide-modified thermal insulation layer and its anti-plasticizer migration performance. Polym. Bull. (in Chinese), doi: 10.14028/j.cnki.1003-3726.2026.26.021 DOI：

摘要

针对推进剂贮存过程中增塑剂向绝热层迁移的问题，选取具有层状结构的氧化石墨烯(GO)作为纳米填料，系统探究其在提升绝热层抗增塑剂迁移性能中的应用效果及作用机制。采用改性Hummer法制备了GO，并将GO作为纳米填料引入三元乙丙橡胶(EPDM)基体中，通过机械复合法制备了GO/EPDM绝热层。GO/EPDM-3(GO添加量为3 phr)对癸二酸二辛酯(DOS)的迁移抑制效果最为显著，与未改性EPDM相比，DOS的平衡迁移量降低了约18.47%，显示出最佳的抗迁移性能。此外，为深入理解GO对增塑剂迁移行为的调控机制，结合分子动力学模拟方法，对DOS在绝热层中的迁移行为进行了模拟研究。模拟结果显示，与未改性EPDM相比，GO/EPDM体系中DOS的迁移系数和结合能明显降低，表明GO的引入有效抑制了DOS的迁移。实验数据和模拟结果均表明GO的引入能够有效增强EPDM绝热层的抗迁移性能。

Abstract

Regarding the issue of plasticizer migrating to the insulation layer during propellant storage

this report has selected layered graphene oxide (GO) as a nanofiller and systematically investigated its effectiveness and underlying mechanisms in enhancing the anti-plasticizer migration performance of the insulation layer. GO was prepared according to a modified Hummer’s method

and introduced into an ethylene propylene diene monomer (EPDM) matrix as a nanofiller. The GO/EPDM insulation layer was then fabricated via mechanical compounding. Among the samples

GO/EPDM-3 (with 3 phr GO) have exhibited the most significant inhibition effect on the migration of dioctyl sebacate (DOS)

demonstrating an approximately 18.47% reduction in the equilibrium migration mass of DOS compared to unmodified EPDM. To further elucidate the regulatory mechanism of GO on plasticizer migration behavior

molecular dynamics (MD) simulations were integrated in this study to model the migration behavior of DOS within the thermal insulation layer. The simulation results revealed that

compared to unmodified EPDM

the migration coefficient and binding energy of DOS in the GO/EPDM system were significantly decreased

indicating that the introduction of GO effectively suppressed DOS migration. Both experimental and simulation results confirmed that the incorporation of GO can effectively enhance the anti-migration performance of the EPDM insulation layer.

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