Structural Regulation and High-temperature Thermo-oxidative Aging Behavior of Quartz Fiber/Thermoplastic Polyimide Composites

Xue-Yi Yu; Yue-Shu Gao; Liang-Hui Gong; Bin Wang; Chen-Yu Liu; Rui-Mei Xu; Wan-Juan Wang; Guo-Shan He; Ye Zhang; Xin-Zheng Huang; Run-Xin Bei; Si-Wei Liu; Ruo-Peng Liu; Yi Zhang

doi:10.1007/s10118-026-3777-4

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Structural Regulation and High-temperature Thermo-oxidative Aging Behavior of Quartz Fiber/Thermoplastic Polyimide Composites

RESEARCH ARTICLE | Updated：2026-10-10

- Structural Regulation and High-temperature Thermo-oxidative Aging Behavior of Quartz Fiber/Thermoplastic Polyimide Composites
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-12(2026)
- Affiliations：
  
  a.PCFM Lab, GD HPPC Lab, Guangdong Engineering Technology Research Centre for High-performance Organic and Polymer Photoelectric Functional Films, GBRCE for Functional Molecular Engineering, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou 510275, China
  b.Kuang-Chi Institute of Advanced Technology, Shenzhen 518000, China
  c.Wuxi Shunxuan New Materials Co., Ltd., Wuxi 214037, China
  d.Instrumental Analysis & Research Center, Sun Yat-sen University, Guangzhou 510275, China
  e.Guangzhou Quality Testing and Inspection Institute, Guangzhou 511447, China
- Author bio：
  
  ye.zhang@kuang-chi.com (Y.Z.)
  beirunxin1@shunxnm.cn (R.X.B.)
  ceszy@mail.sysu.edu.cn (Y.Z.)
- Funds：
- DOI：10.1007/s10118-026-3777-4
  CLC：
- Received：18 May 2026，
  
  Accepted：09 June 2026，
  
  Online First：10 October 2026，
  
  Published：2026-08
- Accepted：
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Yu, X. Y.; Gao, Y. S.; Gong, L. H.; Wang, B.; Liu, C. Y.; Xu, R. M.; Wang, W. J.; He, G. S.; Zhang, Y.; Huang, X. Z.; Bei, R. X.; Liu, S. W.; Liu, R. P.; Zhang, Y. Structural regulation and high-temperature thermo-oxidative aging behavior of quartz fiber/thermoplastic polyimide composites. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3777-4

Xue-Yi Yu, Yue-Shu Gao, Liang-Hui Gong, et al. Structural Regulation and High-temperature Thermo-oxidative Aging Behavior of Quartz Fiber/Thermoplastic Polyimide Composites[J/OL]. Chinese Journal of Polymer Science, 2026, 441-12.
Yu, X. Y.; Gao, Y. S.; Gong, L. H.; Wang, B.; Liu, C. Y.; Xu, R. M.; Wang, W. J.; He, G. S.; Zhang, Y.; Huang, X. Z.; Bei, R. X.; Liu, S. W.; Liu, R. P.; Zhang, Y. Structural regulation and high-temperature thermo-oxidative aging behavior of quartz fiber/thermoplastic polyimide composites. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3777-4 DOI：

Xue-Yi Yu, Yue-Shu Gao, Liang-Hui Gong, et al. Structural Regulation and High-temperature Thermo-oxidative Aging Behavior of Quartz Fiber/Thermoplastic Polyimide Composites[J/OL]. Chinese Journal of Polymer Science, 2026, 441-12. DOI： 10.1007/s10118-026-3777-4.

摘要

Abstract

Thermoplastic polyimide serves as a promising high-performance polymer matrix for fiber-reinforced composites

yet its high melt viscosity severely impairs fiber wetting and filler dispersion

limiting the high-temperature service performance. In this work

we propose and validate a universal and controllable fabrication strategy using quartz fibers and a pyromellitic dianhydride/4

4’-oxydianiline (PMDA/ODA)-type polyimide as a model system. Our approachinvolves significantly diluting the poly(amic acid) (PAA) solution to reduce viscosity and improve fiber wetting

combined with the intercalation of PAA films to enhance laminar interlaminar adhesion within prepreg. Cross-sectional scanning electron microscopy (SEM) reveals a dense

defect-free microstructure with no evidence of voids or delamination. Following thermal aging at 300 °C for 504 h

the composite exhibit no macroscopic damage and retain 70%–75% of their initial mechanical properties. To achieve high filler loading

multi-walled carbon nanotube (MWCNT)/Fe

(at a weight ratio of polyimide (PI):MWCNT:Fe

=10:1:5) are pre-dispersed in pure solvent

resulting in excellent microwave absorption (RL

min

= –55.07 dB

EAB=1.9

GHz at 1.5 mm) alongside high thermal stability. The process method allows precise control over composite thickness and resin distribution by adjusting the number of prepreg layers and the amount and placement of PAA film. This study demonstrates that thermoplastic polyimide can act as a high-performance polymer matrix

enabling advanced fiber-reinforced composites with exceptional long-term thermo-oxidative stability for harsh high-temperature polymer composite applications.

关键词

Keywords

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