Multifunctionality in Epoxy Resins

Abstract

Epoxy resin will continue to be in the forefront of many thermoset applications due to its versatile properties. However, with advancement in manufacturing, changing societal outlook for the chemical industries and emerging technologies that disrupt conventional approaches to thermoset fabrication, there is a need for a multifunctional epoxy resin that is able to adapt to newer and robust requirements. Epoxy resins that behave both like a thermoplastic and a thermoset resin with better properties are now the norm in research and development. In this paper, we viewed multifunctionality in epoxy resins in terms of other desirable properties such as its toughness and flexibility, rapid curing potential, self-healing ability, reprocessability and recyclability, high temperature stability and conductivity, which other authors failed to recognize. These aspects, when considered in the synthesis and formulation of epoxy resins will be a radical advance for thermosetting polymers, with a lot of applications. Therefore, we present an overview of the recent finding as to pave the way for varied approaches towards multifunctional epoxy resins.

Recent Research Progress on Lignin-Derived Resins for Natural Fiber Composite Applications

“…In this review article, research progress on thermoset resins preparation for natural fiber composites, especially lignin, VN, and DVN-based resins, was surveyed, and future research directions were suggested. Few review papers have indeed been published related to bio-based epoxy resins [37][38][39]. However, to our knowledge, no review paper of lignin, VN, and DVN-based resins has been published, which draws the research community's attention to developing bio-based natural fiber composites.…”

Synergistic improvement of mechanical and thermal properties in epoxy composites via polyimide microspheres

“…Epoxy resin‐based materials have been widely used in engineering construction, electronics industry, and other fields, 1–4 due to its excellent adhesion, wettability, dimensional stability, electrical insulation, and chemical resistance 5 . Nevertheless, the application of traditional epoxy resin products is limited due to its inherent high brittleness, poor crack resistance, and weak impact resistance 6 .…”

Synthesis and performance of flexible epoxy resin with long alkyl side chains via click reaction

“…It features excellent mechanical properties, high adhesion, wear resistance, chemical stability, low cost, and so on 1 . Since the 1970s, epoxy resins have been widely used in pigments, coatings, adhesives, industrial tools, aerospace industries, electronic materials, and biomedical systems 1–3 . However, the high density, and high rigidity of the crosslinked networks formed by epoxy resins and curing agents make these materials exhibit brittleness, which greatly affects their application 4–6 .…”

“…1 Since the 1970s, epoxy resins have been widely used in pigments, coatings, adhesives, industrial tools, aerospace industries, electronic materials, and biomedical systems. [1][2][3] However, the high density, and high rigidity of the crosslinked networks formed by epoxy resins and curing agents make these materials exhibit brittleness, which greatly affects their application. [4][5][6] Therefore, much effort has been exerted to toughen cured epoxy resins and thereby expand their application range.…”