Natural Fillers as Potential Modifying Agents for Epoxy Composition: A Review

Area of Science:

• Materials Science
• Polymer Science
• Sustainable Engineering

Background:

• Epoxy resins are versatile organic matrices valued for their mechanical properties, thermal stability, and chemical resistance.
• Traditional non-biodegradable fillers are increasingly being replaced by sustainable alternatives in composite industries.
• Natural fillers offer environmental benefits, low cost, and good biodegradability, driving research into green composite materials.

Purpose of the Study:

• To investigate the use of natural, post-agricultural waste as reinforcement for epoxy resins.
• To develop partially biodegradable biopolymers with enhanced thermomechanical properties.
• To reduce synthetic polymer and fiber waste through the utilization of natural fillers.

Main Methods:

• Review of literature on natural fillers (e.g., cashew nut powder, coconut shell, rice husks, hemp fibers, banana bark) for epoxy resin composites.
• Analysis of the properties and advantages of natural fillers compared to traditional fillers.
• Focus on the development and characterization of partially biopolymer systems based on epoxy resins and natural reinforcements.

Main Results:

• Natural fillers like agricultural waste powders and fibers are effective reinforcements for epoxy resins.
• These green composites exhibit desirable properties such as good specific strength, lightweight, and biodegradability.
• Partially biopolymers derived from epoxy resins and natural fillers demonstrate improved thermomechanical performance.

Conclusions:

• The integration of natural fillers into epoxy resins presents a sustainable approach to developing advanced composite materials.
• These biocomposites offer a viable alternative to conventional materials, reducing environmental impact and waste.
• Further development of these "green products" is crucial for advancing sustainable materials in various industries.