Effects of Graphene Oxide–Attapulgite Ratios on Bending and Shape Memory Properties of Basalt Composites Fabricated by VIHPS 


Vol. 27,  No. 2, pp. 923-939, Feb.  2026
10.1007/s12221-025-01250-2


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  Abstract

This study investigates the role of graphene oxide (GO)–attapulgite (ATT) hybrid fillers in optimizing the mechanical and shape memory properties of basalt fiber (BF)-reinforced epoxy composites. Composites with varying GO:ATT ratios (1:0 to 1:14) were fabricated via vacuum infiltration hot pressing system (VIHPS), and their microstructure, porosity, density, flexural strength, and shape memory performance were systematically characterized. Key findings reveal that a GO:ATT ratio of 1:9 delivers optimal performance. Mechanical properties: flexural strength peaks at 505.94 MPa (28.92% enhancement over GO-only composites), attributed to ATT-induced interfacial roughness and improved resin infiltration; Shape memory behavior: ATT addition elevates shape recovery rate by 4.28%, recovery force by 36.77%, and accelerates recovery kinetics, while slightly reducing shape fixation. Microstructural analysis demonstrates that ATT nanofillers: bridge gaps between GO and BF, enhancing resin flow and reducing voids; increase GO surface roughness, strengthening interfacial friction and bonding. However, excessive ATT triggers aggregation, impairing resin penetration and degrading performance. These results provide actionable insights for designing high-performance shape memory composites through nanofiller hybridization, balancing interfacial engineering and processability.

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  Cite this article

[IEEE Style]

X. Liu, Y. Ma, C. Li, Y. Zhang, Y. Shi, G. Song, "Effects of Graphene Oxide–Attapulgite Ratios on Bending and Shape Memory Properties of Basalt Composites Fabricated by VIHPS," Fibers and Polymers, vol. 27, no. 2, pp. 923-939, 2026. DOI: 10.1007/s12221-025-01250-2.

[ACM Style]

Xinran Liu, Yuqin Ma, Chengshan Li, Yuyang Zhang, Yanni Shi, and Guochao Song. 2026. Effects of Graphene Oxide–Attapulgite Ratios on Bending and Shape Memory Properties of Basalt Composites Fabricated by VIHPS. Fibers and Polymers, 27, 2, (2026), 923-939. DOI: 10.1007/s12221-025-01250-2.

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