Enhancement of tensile and thermal properties of epoxy nanocomposites through chemical hybridization of carbon nanotubes and alumina

Improving flexural and dielectric properties of MWCNT/epoxy nanocomposites by introducing advanced hybrid filler system

“…14a-d, CNT and alumina particles seem to be dispersed together in the epoxy matrix. This result proved the previous theory which stated that alumina particles worked as the transport for CNT to disperse homogenously in the epoxy matrix [9]. Consequently, the best dispersion and distribution of CNT and alumina were achieved in this Epoxy/HYB.…”

“…Thus, the agglomeration of CNT formed the void space in the epoxy matrix and effectively reduced the volume fraction of the epoxy matrix [36]. Another notable point was the good dispersion of CNT in the Epoxy/HYB due to alumina which acted as a vehicle for CNT to uniformly disperse in the epoxy matrix, which consequently promoted better load transfer between filler and matrix [9]. As a result, it provided uniform stress distribution and reduced the stress concentration in the epoxy composite.…”

“…Nowadays, carbon nanotubes (CNTs) as particulate filler in epoxy resin are widely used with remarkable improvements in mechanical [3], electrical [4,5], optical [6] and thermal properties [7,8]. CNTs are regarded as seamless cylinders formed by wrapping graphene sheets with carbon atoms that are covalently bonded with each other through sp2 hybridization [9]. Based on the number of layers of graphene sheets, it can be categorized as either single-walled or multi-walled CNT.…”

Comparative study of single‐layer graphene and single‐walled carbon nanotube‐filled epoxy nanocomposites based on mechanical and thermal properties

“…Meanwhile, the tensile strength and tensile modulus of the Epoxy/SLG0.5 seemed to be the highest among all Epoxy/SLG with 48.01 MPa and 1.62 Gpa, showing an increment of about 7 and 13% higher compared with the neat epoxy. Indeed, the enhancement of the tensile strength and tensile modulus depends on various factors such as the dispersion and shape of filler in the matrix and the interfacial adhesion and strength of the matrix material . All these factors attributed to the higher tensile strength and tensile modulus of Epoxy/SWCNT compared with Epoxy/SLG.…”

Dielectric property determination of hybrid Al2O3-filled MWCNT buckypaper by the rectangular cavity perturbation technique

“…It has also been stated that the colloidal processing techniques can enable high nanoparticle loading and they could offer a practical method for producing homogeneous and high green density Al 2 O 3 -CNT microstructures [17]. Recently, Zakaria et al [18] reported a chemical vapor deposition method for the production of hybrid CNT-Al 2 O 3 structures that could be used to enhance the tensile and thermal properties of epoxy nanocomposites.…”