Abstract
AbstractThe scarcity of nonrenewable resource motivated inclination towards the environmental-friendly novel materials and development of waste natural filler-based hybrid composite is encouraged to fulfill the material demand. Epoxy resins-based composites are high-performing thermosetting polymers and have outstanding blending properties, good machinability, and low cost. Due to these advantages, thermoset plastic is largely used in a broad range of engineering applications; however, thermomechanical properties of neat epoxy are low. Thus, to enhance the thermomechanical properties of epoxy, it is interfaced materials such as graphite, graphene nanoplatelet, boron, carbon fiber, aluminium, silver, etc. Among various substances, graphene has been deliberated as an acceptable novel filler because of its exceptional properties. In addition to inorganic filler inclusion, natural filler/fiber like hemp, sisal, flax, bamboo, jute, etc. can be utilized in a higher percentage as biodegradable material. The present article assisted to improve thermomechanical properties of neat epoxy. This work identifies and addresses (i) processes used for graphene modification; (ii) treatment utilized for enhancing the binding properties of natural filler; (iii) various natural filler extraction process employed; (iv) neat epoxy modification; and (v) influence of different dimensions of fillers.
Highlights
The scarcity of nonrenewable resource motivated inclination towards the environmental-friendly novel materials and development of waste natural filler-based hybrid composite is encouraged to fulfill the material demand
Nano-silica weight percentage is varied from 0.5 to 3 wt% in the hybrid composite and result of the analysis showed that, at 3 wt% filler addition, the highest tensile strength is obtained around 444.89 MPa, with 46.8% improvement
Various governing factors have been underlined and focus was given on their mechanism for improving thermomechanical properties of graphene and natural filler-based epoxy hybrid composite
Summary
Abstract: The scarcity of nonrenewable resource motivated inclination towards the environmental-friendly novel materials and development of waste natural filler-based hybrid composite is encouraged to fulfill the material demand. Epoxy resins-based composites are high-performing thermosetting polymers and have outstanding blending properties, good machinability, and low cost. Nanotube, natural graphite, graphene, and graphene nanoplatelet to the thermoset polymer Among these different types of filler materials, graphene and various forms of graphene were found to be quite interesting substances that can be used to enhance mechanical and thermal properties of neat thermoset polymers. The improved consciousness about the use of natural filler and fibers in the development of hybrid composite materials replaces and fulfills the novel materials’ demand in the field of engineering application. An attempt to improve both the mechanical and thermal properties of these epoxy-based hybrid composites is essential for replacing the outdated appliances for better efficient result [9]. (iii) The combined effect of treated filler/fiber and functionalized high thermal conductivity graphene in the modified epoxy resin improves thermomechanical properties of hybrid composite. Fiber creates a stronger chemical bonding with the neat epoxy for developing hybrid composite. (ii) Different modifying techniques are discussed to enhance the crosslink bonding of virgin epoxy monomers that are suitable for preparing a hybrid thermosetting composite. (iii) The combined effect of treated filler/fiber and functionalized high thermal conductivity graphene in the modified epoxy resin improves thermomechanical properties of hybrid composite. (iv) Influence of micro- and nano-sized fillers is able to reach inside the interior spacing gaps of cross-linked fibers and improve the crosslinking bonding by minimizing the void content. (v) Effect of various dimensions, viz., 0D, 1D, 2D, and 3D nano-fillers’ inclusion in epoxy and filler/fiber-based hybrid composite
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