Viscoelastic and dry-sliding wear properties of basalt fiber-reinforced composites based on a surface-modified graphene oxide/epoxy matrix

Abstract

The current study focuses on the development of silanized graphene oxide reinforced basalt fiber/epoxy composites for enhanced tribological and viscoelastic properties. The modified-graphene oxide nanoplatelets were characterized using energy-dispersive X-ray spectroscopy, and Raman analyses. Pin-on-disk wear test and dynamic mechanical thermal analysis were conducted to determine the tribological and viscoelastic properties of the fabricated specimens with different silanized-graphene oxide loadings in the matrix (0–0.5 wt.% at a step of 0.1). The multiscale specimens were fabricated using the hand lay-up technique. The best silanized-graphene oxide loading for effectively enhancing the tribological properties was found to be 0.4 wt.%, whose wear rate and friction coefficient were 62% and 44%, respectively lower than those of the neat basalt/epoxy composite. The examination of the worn surfaces showed the enhanced basalt fiber/epoxy bonding in graphene oxide-reinforced specimen. From the results of dynamic mechanical thermal analysis, the specimen filled with 0.4 wt.% silanized-graphene oxide demonstrated the highest increase of 130% and 13.6℃ in the storage modulus and glass transition temperature as compared to the neat composite. This study indicated that the addition of silanized-graphene oxide considerably enhanced the tribological and viscoelastic properties of the fibrous composites.

On the low‐velocity and high‐velocity impact behaviors of aramid fiber/epoxy composites containing modified‐graphene oxide

“…GNs via the crack deflection mechanism (see SEM image in the next section) delay the crack propagation, enhancing the fracture toughness. (c) The specimens containing GNs have a higher bending stiffness than that of the neat specimen [8,9], and as a result, they can absorb more energy in terms of elastic deformation.…”

“…In this regard, numerous works have been conducted to explore the mechanical properties of GNs‐reinforced polymer matrix composites [3–5]. The addition of GNs to FRPs is a promising technique for further improvement of mechanical properties like tensile, flexural, compressive, wear, and interlaminar shear properties [6–10]. This type of material is called multiscale composites [11,12].…”

Hybrid Epoxy Composites with Both Powder and Fiber Filler: A Review of Mechanical and Thermomechanical Properties

“…The SGO addition resulted in a higher mechanical property enhancement than the GO addition. In another study [97], the viscoelastic and tribological properties of these materials were investigated. For the basalt/epoxy composites with 0.4 wt.% SGO enhanced tribological properties, such as wear rate (62% lower than the reference sample) and friction coefficient (44% lower than the reference sample), were observed.…”

Preparation of silica‐decorated graphene oxide nanohybrid system as a highly efficient reinforcement for woven jute fabric reinforced epoxy composites

“…[29,30] The observed bands at 1,036 and 1,163 cm −1 show the presence of C O and C O C stretching of epoxy groups, respectively. [25] After GONP modification, three new peaks appear at 1,082, 803, and 460 cm −1 , which are assigned to the Si O bond, representing the presence of SiO 2 on the surface of GONPs. [31,32] To get more information about the morphology of the GONPs and SiO 2 @GONPs, they imaged using AFM, as F I G U R E 6 Elemental X-ray mapping for the SiO 2 @GONPs [Color figure can be viewed at wileyonlinelibrary.com] F I G U R E 7 Flexural stress-strain curves of the specimens filled with various loadings of (a) graphene oxide nanoplatelets (GONPs) and (b) SiO 2 @GONPs illustrated in Figure 5.…”

“…The composite preparation consists of two steps. [24,25] In the first step, defined amounts of GONPs or SiO 2 @GONPs were mixed with the epoxy resin using a mechanical stirring (20 min at 2,000 rpm). The mixture was then sonicated for 30 min using an ultrasonic homogenizer (150 W, 24 kHz, TOPSONICS Company) with a cooling system around the specimen container.…”