1、Effects of Curing Agents on the Adhesion of Epoxy Resin to Copper: A

Epoxy resins are widely used adhesives in industrial fields. To use epoxy resin as an adhesive, it is necessary to mix the epoxy resin with a hardener. Hardeners have various functional groups and skeletons, and the properties of epoxy resins vary depending on the hardener.

2、Investigation of curing systems in modified epoxy anticorrosion

To further elucidate the influence of curing agent molecular structure on the adhesion of epoxy coatings, the adsorption behaviors of different curing agent molecules on the iron substrate during the MD process (0–50 ps) were analyzed.

3、Impact of Curing Time and Temperature on Bond Performance of Epoxy

The bonding performance of epoxy resin adhesives plays a critical role in ensuring interlayer adhesion and long-term durability in steel bridge deck pavements.

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.

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.

Effect of Curing Agent Type on Curing Reaction Kinetics of Epoxy Resin

In this paper, low molecular weight polyamides, aromatic amines and anhydrides were selected as three kinds of curing agents and their isothermal viscosity-time properties were studied to...

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-friendli-ness and mechanical functionality have emerged as vulcanization properties.

The study of curing behavior and thermo

The choice of curing agents significantly influences the crosslinked network structure of epoxy systems, thereby affecting their thermo-mechanical properties [[7], [8], [9]]. Therefore, the strategic selection of appropriate curing agents holds crucial practical significance for epoxy adhesives.

Study on Thermomechanical Properties and Morphology of an Epoxy Resin

The research results reveal the influence of curing conditions on the thermal conductivity and thermal stability of the epoxy resin thermally conductive adhesive, which has a specific reference value for improving the performance of the epoxy resin thermally conductive adhesive, optimizing its usage conditions, and improving production efficiency.

Preparation and Properties of Epoxy Adhesives with Fast Curing at Room

Developing a highly efficient multifunctional epoxy adhesive is still an enormous challenge, which can rapidly cure at room temperature and has excellent low-temperature resistance performance and is crucial for the epoxy adhesive and electrical sealing fields during severe cold seasons.

In modern industry, epoxy resin is widely used across various fields due to its exceptional performance. The critical role of this high-performance material in numerous applications largely depends on the excellent adhesion formed during its curing process. This article explores the aspects of epoxy curing agent adhesion, from theoretical principles to practical applications, to deepen the understanding of the importance of this key property.

1. Definition and Importance

Epoxy curing agent adhesion refers to the bonding strength between cured epoxy resin and the substrate. This bonding strength is a vital indicator of epoxy resin performance, directly affecting the durability, reliability, and safety of the final product. Good adhesion can withstand external stresses, prevent material delamination or crack propagation, and ensure the stability and integrity of the entire structure.

2. Influencing Factors

1. Resin Type: Different epoxy resins have varying functional groups and molecular structures, which determine their interaction mechanisms with substrates. For example, aromatic epoxy resins typically exhibit better adhesion due to their higher polarity and abundance of polar groups.

2. Curing Conditions: Curing temperature, time, and environmental conditions significantly impact the bonding between the curing agent and the substrate. Both excessively high or low temperatures may reduce adhesion. Additionally, humidity during curing can affect adhesion outcomes.

3. Surface Treatment: The substrate’s surface condition has a marked influence on adhesion. Clean, smooth, and oil-free surfaces are more likely to form effective chemical bonds with epoxy resin. Conversely, rough or contaminated surfaces may lead to insufficient adhesion.

4. Additives: Specific additives, such as coupling agents (e.g., silane coupling agents), can improve adhesion by providing additional chemical bonding sites, enhancing interactions between the resin and substrate.

3. Practical Applications

1. Electronic Packaging: In semiconductor manufacturing, epoxy resin is used to encapsulate sensitive electronic components. Strong adhesion helps prevent moisture intrusion, protecting components from corrosion and wear.

2. Automotive Manufacturing: Composite materials in automotive industries require high-strength, durable bonding, where epoxy curing agent adhesion plays a critical role. For example, bonding car body shells demands ultra-high adhesion to ensure vehicle safety and reliability.

3. Construction Industry: Epoxy resin is applied as coatings on concrete surfaces to enhance wear resistance and weather resistance. Robust adhesion ensures the coating adheres firmly to the substrate, extending its service life.

4. Future Prospects

As technology advances, the demand for improved epoxy resin and curing agent adhesion continues to grow. Future research will focus on leveraging new materials and processes to enhance adhesion. For instance, nanotechnology holds promise for delivering higher mechanical strength and superior adhesive properties. Additionally, developing eco-friendly epoxy resins will be a key direction to meet sustainable development goals.

epoxy curing agent adhesion is a crucial factor in epoxy resin applications. By understanding its influencing factors and practical examples, we can better leverage its performance characteristics for more efficient and safer applications across industries. With ongoing technological progress, adhesion is poised to remain a hot topic in future epoxy resin research.