聚丙烯纤维增强交联聚苯乙烯的介电及力学性能研究

doi:10.11896/cldb.25010020

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (8839KB)
Export: BibTeX | EndNote (RIS)

Abstract Cross-linked polystyrene has an extremely low dielectric constant and dielectric loss, and is regarded as the preferred application material in the field ofhigh-frequency communication. With the increase in the size of communication equipment, the mechanical properties of cross-linked polystyrene cannot meet the requirements of large-sized workpieces. In this study, fiber-reinforced composite were fabricated via the pouring method, integrating polypropylene fibers with cross-linked polystyrene. The dielectric properties, mechanical performance, and fracture morphology of the composites were comprehensively examined under different fiber contents and lengths. A resonator, a universal testing machine, and scanning electron microscopy were employed for these investigations. At 5.0 GHz, the dielectric constant of the composites dropped from 2.52 (the dielectric constant of cross-linked polystyrene) to 2.45, with a dielectric loss value of 0.001. Compared to pure cross-linked polystyrene, the composite material exhibited remarkable improvements: a 36.2% increase in flexural strength, a 67.7% boost in tensile strength, and a storage modulus reaching 1 756 MPa (46.3% higher than that of the original cross-linked polystyrene). Evidently, the addition of polypropylene fibers significantly enhances the mechanical properties of cross-linked polystyrene.

Key words： low dielectric loss cross-linked polystyrene composite mechanical property

Published: 10 January 2026 Online: 2026-01-09

CLC number:

TB332

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	YIN Ziluo

Cite this article:

YIN Ziluo. Dielectric and Mechanical Properties of Polypropylene Fiber-reinforced Cross-linked Polystyrene[J]. Materials Reports, 2026, 40(1): 25010020-6.

URL:

https://www.mater-rep.com/EN/10.11896/cldb.25010020 OR https://www.mater-rep.com/EN/Y2026/V40/I1/25010020

1 Li X T, Zhu X M, Dong J, et al. Chinese Journal of Polymer Science, 2021, 39(9), 1200.
2 Tang L, Tang Y, Zhang J, et al. Science Bulletin, 2022, 67(21), 2196.
3 Fan Y G, Li Y H, Ma J B. Chemical Journal of Chinese Universities-Chinese, 2002, 23(8), 1622.
4 Xu F, Wei W, Zhang C, et al. Journal of Radioanalytical and Nuclear Chemistry, 2020, 324(2), 697.
5 Huang H, Zhang B, Zhao Z. Chemical Journal of Chinese Universities-Chinese, 2017, 38(9), 1687(in Chinese).
黄海鸿, 张保玉, 赵志培. 高等学校化学学报, 2017, 38(9), 1687.
6 Sha D, Yu X, Zhao J, et al. Chemical Journal of Chinese Universities-Chinese, 2020, 41(4), 838(in Chinese).
沙迪, 禹旭敏, 赵将, 等. 高等学校化学学报, 2020, 41(4), 838.
7 Wu Fei. Preparation and properties of cross-linked polystyrene and its glass fiber reinforced composites. Master's Thesis, Wuhan University of Technology, China, 2010 (in Chinese).
吴飞. 交联聚苯乙烯及其玻纤增强复合材料的制备及性能研究. 硕士学位论文, 武汉理工大学, 2010.
8 Li R, Pei J, Li X, et al. Ferroelectrics, 2019, 540(1), 162.
9 Zhang X, Wang Y, Cheng S. Polymer Bulletin, 2013, 70(3), 821.
10 Devaux E, Caza C, Recher G, et al. Polymer Testing, 2002, 21(4), 457.
11 Cerovic D D, Petronijevic I, Dojcilovic J R. Polymers for Advanced Technologies, 2014, 25(3), 338.
12 Prabhu T N, Hemalatha Y J, Harish V, et al. Journal of Applied Polymer Science, 2007, 104(1), 500.
13 Fang Ke, Fu Wanli, Lin Ting. Jiangxi Chemical Industry, 2022, 38(2), 75 (in Chinese).
方轲, 傅万里, 林婷. 江西化工, 2022, 38(2), 75.
14 Benzerga R, Badard M, Mejean C, et al. Journal of Electronic Materials, 2020, 49(5), 2999.
15 Latif S S, Nahar S, Hasan M. Journal of Reinforced Plastics and Compo-sites, 2015, 34(3), 187.
16 Yang J, Xie H F, Song X, et al. Shanghai Journal of Stomatology, 2016, 25(1), 1.
17 Joseph P V, Mathew G, Joseph K, et al. Composites Part A:Applied Science and Manufacturing, 2003, 34(3), 275.
18 Ku H, Wang H, Pattarachaiyakoop N, et al. Composites Part B:Engineering, 2011, 42(4), 856.
19 Rezaei F, Yunus R, Ibrahim N A. Materials & Design, 2009, 30(2), 260.
20 Venkateshwaran N, Elayaperumal L A, Jagatheeshwaran M S. Journal of Reinforced Plastics and Composites, 2011, 30(19), 1621.
21 Ashok R B, Srinivasa C V, Basavaraju B. Advanced Composites and Hybrid Materials, 2019, 2(4), 586.
22 Zhang D, He M, Qin S, et al. RSC Advances, 2017, 7(25), 15439.