Some Properties of Composite Drone Blades Made from Nanosilica Added Epoxidized Natural Rubber

Abstract

The objective of this study was to investigate the basic properties of composite materials that were made from epoxidized natural rubber and nanosilica to be used as blades for drones. Nanocomposite samples were prepared with 5% of epoxidized natural rubber and epoxy resin loaded with 3% nanosilica. Their resistance against accelerated weathering conditions as well as mechanical properties, including flexural strength, impact strength, and hardness, were evaluated. Based on the findings of this work, the impact strength of the samples decreased 13.33% and 33.33% as a result of exposing them to weathering by UV radiation for 168 h and 336 h, respectively. However, their tensile strength properties enhanced 35.71% and 19.05% for the above corresponding exposure time spars. Experimental composite samples that were made in this study would have great potential to be used as raw material for propeller blade for drones based on their properties evaluated within the scope of this work.

Novel Engineered Materials: Epoxy Resin Nanocomposite Reinforced with Modified Epoxidized Natural Rubber and Fibers for Low Speed Wind Turbine Blades

“…The C=C bonds in NR were randomly converted into epoxide groups, so new characteristic peaks emerged at 1251 and 873 cm −1 (C-O-C, asymmetric stretching) in the spectrum of ENR 50 (lines 3 and 4) [ 37 ]. The nanosilica shown in lines 5 and 6 had three main characteristic peaks of silica in the range from 466 cm −1 to 1300 cm −1 [ 38 ].…”

“…The interlamina fracture toughness is an important and to considered that a review of a previous study ([ 38 , 39 ], that using SEM, and tensile testing can be used instead of interlaminar fracture toughness of a glass fiber (GF)/composite were investigated. SEM observations, that the modified composites formed between ENR 50, GF, and epoxy matrix exhibited improved interfacial adhesion and improvements in tensile strengths.…”

Effect of SiO2 Particles on the Relaxation Dynamics of Epoxidized Natural Rubber (ENR) in the Melt State by Time-Resolved Mechanical Spectroscopy

“…The utilization of natural rubber (NR) can be further extended by introducing reactive groups that may favor the compatibilization of the elastomer with other polymers or inorganic fillers, achievable by widening the possibilities of chemical reactions and increased physical interactions resulting from the increase in polarity. Epoxidation of NR as a route to achieve these objectives has been extensively reported in the literature [ 12 , 13 ]. Due to the reactivity of epoxy groups and the high polarity of OH groups, epoxidized natural rubber (ENR) is widely used for applications requiring strong adhesion and to enhance the interfacial adhesion with silica filler and nanoparticles to increase the reinforcement efficiency and related performance of products, such as tires [ 14 , 15 , 16 ].…”

Mechanical and Fracture Characterization of Epoxy/PLA/Graphene/SiO2 Composites

“…The fiber-reinforced composites exhibited lower tensile and flexural strength than pristine LDPE, which was attributed to the poor filler-matrix interface [14]. Due to their weather resistance and improved mechanical qualities, epoxy-based matrix composites reinforced with silica nanoparticles (SNs) and epoxidized natural rubber (ENR) as fillers were employed for drone blades [15]. When paired with SN, ENR demonstrated a decrease in glass transition temperature (Tg) and an increase in epoxy resin modulus.…”