High mechanical performance of 3-aminopropyl triethoxy silane/epoxy cured in a sandwich construction of 3D carbon felts foam and woven basalt fibers

Abstract

Epoxy-based sandwich composites with improved economic efficiency were developed to better utilize composite components with functions such as high mechanical performance and light weight, which influenced quality for load-bearing applications. Herein, an epoxy-based sandwich composite was made by laminating woven basalt fibers (WBFs) as a face sheet on 3D carbon felt foam (3D CFs) as a core material. The cast-in-place process was used to infuse the epoxy solution within the sandwich, resulting in bicontinuous composites with outstanding mechanical characteristics and high performance. In addition, the epoxy solution was combined with a silane coupling agent to boost the composite’s toughness by enhancing the adhesion between the fibers and the epoxy. The mechanical properties of epoxy composites were also found to be much improved when WBFs were used as a face on 3D CF foam. Compared to the epoxy/3DCFs/WBFs composite sandwich to pure epoxy, the flexural and tensile strengths improved by 298.1 and 353.8%, respectively, while the impact strength rose to 135 kJ/m2. This research shows a new way to make a new process for making sandwich composites with epoxy that is cheap and strong.

Enhancing the Tribological Characteristics of Epoxy Composites by the Use of Three-Dimensional Carbon Fibers and Cobalt Oxide Nanowires

“…Carbon fiber felts have low thermal conductivity as a result of their fibrous porosity structure and strong heat resistance at the interfaces between fibers, which is produced by the noticeable gaps between the surrounding composites. These carbon fiber felts also demonstrate excellent damage tolerance owing to the presence of reinforced fibers [19].…”

“…Carbon composites are widely used yet difficult and expensive to prepare for aircraft brakes. Carbon fiber/epoxy (CF/EP) composites are widely used because they are easy to produce [19,20]. The resin matrix maintains fibers together in traditional woven carbon fiber/epoxy laminates, causing interlaminar delamination.…”

Effects of reactive diluent on processing, structure, and properties of epoxy foams and their sandwich composites

“…Foam sandwich composite (FSC) materials, due to their excellent characteristics of lightweight, high specific strength, high specific stiffness, and fatigue resistance, are widely used in fields such as rail transportation, shipping, aerospace, and construction 1 . Common core filling materials include metal foam cores, 2,3 polymer foam core, 4–6 and wood core 7 . Among these, polymer foam core has gained significant attention due to its high specific strength and resistance to corrosion, making it a research hotspot.…”

Investigating the Synergistic Impact of Cenosphere and Mg-Sn Alloy on the Tribological and Mechanical Properties of Aluminum Foam Composites

“…The emergence of composite materials as a new class of materials has great implications for many industries [1][2][3]. Due to its many uses, aluminum is one of the most common minerals found on earth and one of the most beneficial.…”