Lightweight hybrid fiber-reinforced sheet molding compound with enhanced mechanical properties and excellent acid resistance

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2024-05-26 DOI:10.1007/s42114-024-00907-5

Jian Li, Xiufang Zhu, Chao Fu, Rahma Sellami, Saad Melhi, Mohammed A. Amin, Ke Liu, Ruifeng Ming, Minxian Shi, Mufang Li

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Abstract

The effects of hollow glass microspheres (HGMs) content, mass ratio of hybrid fibers, and fiber length on the properties of sheet molding compound (SMC) were investigated in this study. An optimized composition is achieved for SMC composite lightweighting and reinforcement improvement. Then, the resistance to acid of the optimized SMC is investigated. Introducing the high-performance fibers, carbon fibers (CFs) or basalt fibers (BFs), into the glass fibers (GFs) reinforced SMC composites can improve the mechanical properties significantly. The CFs incorporated SMC shows lower density and higher bending strength and impact strength than those of the BFs incorporated SMC. It can be concluded the SMC filled with 5 wt% HGMs, reinforced by GFs and CFs (mass ratio of 1:1) with a fiber length of 1.5 in, shows the greatest performance. When comparing with commercially available SMC for chemical resistance, the optimized SMC shows reduced density (22%) and increased bending strength (147%) and impact strength (27%). The mechanical properties of this SMC can be preserved 85.66% for bending strength and 90.22% for impact strength after immersing in 42 wt% H₂SO₄ solution at 100 °C for 28 days, suggesting an excellent resistance to acid. This research paves the way for the manufacture of SMC technology and the design of lightweight and corrosion-resistant SMC materials.

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轻质混合纤维增强片状模塑料，具有更强的机械性能和优异的耐酸性能

本研究探讨了中空玻璃微球（HGMs）含量、混合纤维质量比和纤维长度对片状模塑料（SMC）性能的影响。优化后的成分可用于 SMC 复合材料的轻量化和增强。然后，研究了优化 SMC 的耐酸性能。在玻璃纤维（GFs）增强的 SMC 复合材料中引入高性能纤维（碳纤维（CFs）或玄武岩纤维（BFs））可显著改善其机械性能。与加入 BFs 的 SMC 相比，加入 CFs 的 SMC 密度更低、弯曲强度和冲击强度更高。由此可以得出结论，在纤维长度为 1.5 英寸的 SMC 中填充 5 wt% 的 HGMs，并用 GFs 和 CFs（质量比为 1:1）进行增强的 SMC 性能最好。与市售 SMC 的耐化学性相比，优化后的 SMC 密度降低（22%），抗弯强度（147%）和抗冲击强度（27%）提高。将这种 SMC 在 42 wt% H2SO4 溶液中 100 °C 下浸泡 28 天后，其弯曲强度和冲击强度的机械性能分别保持了 85.66% 和 90.22%，表明其具有极佳的耐酸性。这项研究为 SMC 技术的生产和轻质耐腐蚀 SMC 材料的设计铺平了道路。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.