1、Epoxy resins thermosetting for mechanical engineering

This review presents various types of epoxy resins and curing agents commonly used as composite matrices. A brief review of cross-linking formation and the process of degradation or decomposition of epoxy resins by pyrolysis and solvolysis is also discussed.

2、A critical review of dynamic bonds containing curing agents for epoxy

Investigated the mechanical, thermomechanical, thermal, and recycling properties of the epoxy thermosets cured by developed curing agents. Addressed the challenges, opportunities and emerging trends in the field.

3、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).

4、Development of Epoxy and Urethane Thermosetting Resin Using

Herein, to overcome the mechanical strength of cell-plastics, we used thermosetting epoxy and urethane resins containing Chlorella sp. as the green algae. We successfully fabricated thermosetting resins with a Chlorella sp. content of approximately 70 wt% or more.

5、The epoxy resin system: function and role of curing agents

Curing agents are critical components of aqueous epoxy resin systems. Unfortunately, its uses and applications are restricted because of its low emulsifying yields. Epoxy resins are frequently used in electrical devices, castings, packaging, adhesive, corrosion resistance, and dip coating.

Imidazole Derivatives: Advanced Latent Curing Agents for High

Imidazole derivatives serve as advanced latent curing agents for epoxy thermosetting resins, offering exceptional control over curing processes and enhanced final product properties.

Imidazole derivatives as latent curing agents for epoxy thermosetting

We achieved thermal curing of epoxy resins containing the latent curing agents. A mixture of the latent curing agents with epoxy resins had long storage stability. We have developed novel liquid-type thermal latent curing agents to generate imidazoles in epoxy resins.

Current situation and development trend of reactive epoxy resin curing

Epoxy resin belongs to thermosetting resin, commonly used in mechanical processing, electronic aviation equipment, shipbuilding industry and other fields, with good stability, shrinkage, paste and other characteristics, but the epoxy resin must be cured before it can play a role.

DIC Develops Basic Technology for an Innovative Epoxy Resin Curing Agent

To address this issue, DIC has developed basic technology for a groundbreaking epoxy resin curing agent that preserves the exceptional properties of epoxy resins, notably heat resistance, durability, adhesiveness, mechanical strength and electrical insulation, while also allowing remolding.

Dual

Dual-curing Epoxy thermosets has found widespread use in polymer materials in recent years. Dual-curing system is one of the ways used to control the curing rate of epoxy resin to design the final product through two different curing systems with different reaction conditions.

In modern materials science, thermosetting resins play an irreplaceable role in multiple fields due to their unique physical and chemical properties. Among these, thermosetting epoxy resins are particularly favored not only for their excellent performance but also for their broad application prospects. This article provides an in-depth exploration of the knowledge related to thermosetting epoxy resins and their curing agents, aiming to offer readers a comprehensive and insightful understanding.

I. Overview of Thermosetting Epoxy Resins

Thermosetting epoxy resins are materials that undergo cross-linking and curing upon heating, endowing them with superior mechanical strength, thermal resistance, and corrosion resistance. Among the diverse family of thermosetting resins—including phenolic resins, unsaturated polyester resins, and vinyl ester resins—thermosetting epoxy resins stand out for their exceptional overall performance. They are widely used in electronics, automotive, construction, and other industries.

II. Preparation of Thermosetting Epoxy Resins

The preparation of thermosetting epoxy resins involves multiple steps. First, suitable monomers such as epichlorohydrin and bisphenol A are selected and polymerized to form prepolymers. Next, modifiers like catalysts, fillers, and additives are incorporated to adjust the resin’s properties. Finally, the prepolymer is mixed with an initiator and cured at a specific temperature until the desired cross-linking density and mechanical properties are achieved.

III. Curing Process of Thermosetting Epoxy Resins

The curing process of thermosetting epoxy resins is critical to their performance. During curing, monomers in the resin undergo polymerization to form a network structure. Both curing temperature and time significantly affect the outcome: lower temperatures may improve mechanical properties but require longer curing times, while higher temperatures shorten curing time but risk degrading material performance. Selecting optimal curing conditions is key to ensuring material quality.

IV. Applications of Thermosetting Epoxy Resins

Due to their outstanding properties, thermosetting epoxy resins have widespread applications. In electronics, they are used for manufacturing circuit boards and encapsulation materials; in the automotive industry, they serve in engine components and body panels; and in construction, they reinforce concrete and coat flooring. Additionally, their wear resistance and chemical corrosion resistance make them valuable in aerospace, nuclear energy, and other specialized fields.

V. Curing Agents for Thermosetting Epoxy Resins

The curing of thermosetting epoxy resins is a complex chemical process requiring specific curing agents to initiate and promote cross-linking. Curing agents provide energy for monomers to react, forming chemical bonds essential for curing. Different epoxy resins may require tailored curing agents (e.g., acid anhydrides, amines, or imidazoles) to meet performance demands. These agents react with hydroxyl groups in the epoxy resin, driving the curing reaction.

VI. Future Prospects of Thermosetting Epoxy Resins

With advancements in technology and growing demand for new materials, research on thermosetting epoxy resins and their curing agents continues to evolve. Future developments may focus on high-performance, eco-friendly resins and curing agents, as well as innovative composite materials. Technological breakthroughs and optimization will expand the roles of thermosetting epoxy resins across industries.

As a cornerstone of modern materials science, thermosetting epoxy resins and their curing agents hold immense potential. By deepening our understanding of these materials, we can better leverage their applications and contribute to future technological progress.