1、Curing reactions of epoxy powder coatings in perspectives of chemical
The properties of the cured products of epoxy powder coatings are dominated by the curing systems. This review discusses the types, reaction principles, characteristics of curing agents and accelerators that participate in the curing reaction with different epoxy resins.
2、The epoxy resin system: function and role of curing agents
Epoxy resins are frequently used in electrical devices, castings, packaging, adhesive, corrosion resistance, and dip coating. In the presence of curing agents, epoxy resins become rigid and infusible. Eco-friendliness and mechanical functionality have emerged as vulcanization properties.
3、The epoxy resin system: function and role of curing agents
Epoxy resins are frequently used in electrical devices, castings, packaging, adhesive, corrosion resistance, and dip coating. In the presence of curing agents, epoxy resins become rigid...
4、Surface Chemistry and Molecular Dynamics of Epoxy Resin: Insights from
The surface chemistry of epoxy resin and its composites is critical for their long-term performance across various applications. In this study, we investigate the main reactions occurring on the surface of DEGBA/DEGBF epoxy resin following curing, ...
Curing Agent: Types & Process of Curing Agents for Epoxy Resin
Explore the main types of curing agents & various crosslinking methods which help to improve the polymerization process to select the right curing agent for coating formulation.
Thermal curing of epoxy resins at lower temperature using 4
In this study, we present N -methyl- N -pyridyl amide derivatives as thermal latent curing agents for use at lower temperatures, along with their mechanism of epoxy curing through the generation of the highly reactive 4- (methylamino)pyridine (4MAPy) (Figure 1).
Synthesis and application of epoxy resins: A review
The final properties of cured epoxy resins are affected by the type of epoxy resin, curing agent, and curing process. This paper aims to review the synthesis, curing process, and application of epoxy resins.
Curing agents for epoxy resins
These crosslinkers , hardeners or curing agents as they are widely known, promote cross-linking or curing of epoxy resins. Curing can occur by either homopolymerisation initiated by a catalytic curing agent or a polyaddition/copolymerisation reaction with a multifunctional curing agent.
Influence of different composite curing agents on the rapid curing
In particular, effective formulations are designed for mixing fast and slow curing agents, studying their effects on the curing behavior, curing quality, and mechanical properties of epoxy resins and elucidating their influence mechanisms.
Theoretical studies of mechanisms of epoxy curing systems
epoxy resin, a particular curing agent and/or a particular catalyst. The examination of all possible reaction pathways for each curing system can allow us to predict the most preferable pathway in the system and can enable the development of a more accurate kinetic model for the system.
In modern industrial and construction fields, epoxy resins and their curing agents play a crucial role. These two materials are not only widely used across various sectors due to their exceptional properties but also form a complex and precise system through their interactions. This article delves into the relationship between epoxy resins and curing agents, exploring how they interact under specific conditions to achieve the curing process.
Epoxy resin is a thermosetting polymer with molecular structures containing repetitive epoxy groups, which can undergo chemical reactions with other substances. This reaction is a critical step in the curing process, transforming the epoxy resin into a solid state and endowing it with excellent physical and chemical properties.
Curing agents are chemicals that react with the epoxy groups in epoxy resins, promoting cross-linking reactions. These reactions are typically exothermic, often requiring heat or other methods to accelerate the reaction rate. When epoxy resins react with curing agents, they form a three-dimensional network structure, enhancing mechanical strength, chemical resistance, and longevity.
The relationship between epoxy resins and curing agents dates back to the late 19th century. With advancements in chemical industries, scientists began studying ways to improve epoxy resin performance. Early curing agents included amine compounds (e.g., imidazolines), anhydride compounds (e.g., phthalic anhydride), and phenolic resins. Over time, new curing agents have been developed to meet diverse application needs. For instance, aromatic curing agents improved temperature resistance, while sulfur- or phosphorus-containing agents enhanced corrosion resistance. The integration of nanotechnology has also introduced nanoparticles to boost wear resistance and conductivity.
The interaction between epoxy resins and curing agents involves a complex chemical process. Epoxy groups react with active groups in curing agents, forming stable chemical bonds. This process typically requires specific temperatures and sufficient time to complete. Once finished, the epoxy resin transitions from liquid to solid, achieving full curing.
This interaction significantly impacts the final product’s performance. By precisely controlling curing conditions (temperature, time, pressure), optimal mechanical strength, temperature resistance, and corrosion resistance can be realized. practical applications also depend on environmental factors, additives, and material ratios, all of which must be carefully considered during design and production.
the interaction between epoxy resins and curing agents is a core concept in modern materials science. Deepening our understanding of this process enables better utilization of epoxy resins’ properties and expands their applications. Looking ahead, advancements in new material technologies will likely drive further innovation and broader use of this chemistry.
