1、Study on the Performances of Toughening UV

This study aims to investigate the effects of three toughening agents—core–shell rubber particles (CSR), nano-silica particles (NSPs), and epoxidized polybutadiene (EPB)—on the performance of UV-LED-cured epoxy electronic encapsulants.

2、Novel Thermal Latent Curing Agents for Epoxy Resins Based on Dual

Herein, we present a dual-locked thermal latent curing agent based on aminopyridines, protected by amidation and N-oxidation, designed to enhance both pot life and final curing efficiency.

3、Catalyst

This study addresses these challenges by modifying the catalyst to regulate the curing process. By lowering the activation energy of the overall curing reaction, we suppressed the heat accumulation and uneven curing while enhancing the degree of cure and crosslinking density.

Synthesis and Characterization of a Novel Curing Agent for Epoxy Resin

Chai et al. prepared two latent curing agents (PHI-HPP and EMI-HPP) by a simple method, and used them to make one-component epoxy resins. These resins have excellent properties including flame retardancy, long shelf life, fast curing, transparency, and good mechanical properties [10].

Preparation of Latent Curing Agent for Epoxy Resin by Encapsulation

The microcapsule-type curing agents DDM-PMMA and IZ-PU were prepared by solvent evaporation method and interfacial polymerization method, respectively. The surface morphology of the two microcapsules was characterized by SEM.

Electronics Encapsulation Epoxy: An In

Common resins used in electronics encapsulation include epoxy, silicone, and polyurethane resins. Hardeners: Also known as curing agents, hardeners are added to resins to initiate the curing process.

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...

Modified

Abstract The chemical modification of a polyalkylene-polyamine by reaction with phenol and formaldehyde allowed the obtainment of a series of curing agents tailored for an epoxy formulation suitable for the “conformal coating” of electronic assemblies.

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.

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Curing Behavior of the Microcapsule-type Curing Agent for Epoxy Resin Thermal curing behavior of the DDM-PMMA microcapsules to epoxy resin was examined by DSC under argon...

Electronic encapsulation curing agents for epoxy resins are critical materials in electronic packaging, widely used for encapsulation, bonding, and protection of electronic devices. Epoxy resins offer excellent mechanical properties, chemical stability, and electrical insulation, making them indispensable in the electronics industry. This article discusses these curing agents from the following perspectives:

I. Definition and Classification

1. Definition: Electronic encapsulation curing agents for epoxy resins are organic compounds containing epoxy groups. They form three-dimensional network structures through chemical reactions, providing high mechanical strength, superior electrical insulation, and resistance to chemical corrosion.
2. Classification: Based on application needs, these curing agents are categorized into types such as two-component, one-component, and multi-component systems. The most common variant is the two-component epoxy encapsulation glue, consisting of Part A (curing agent) and Part B (resin), which are mixed in specific ratios before use.

II. Performance Characteristics

1. High Mechanical Strength: These agents exhibit exceptional mechanical strength, withstand heavy loads and impacts, and are suitable for encapsulating various electronic devices.
2. Excellent Electrical Insulation: They provide reliable electrical insulation, preventing current leakage and enhancing circuit safety.
3. Superior Chemical Stability: Resistant to environmental factors, they maintain performance stability under diverse conditions without degradation.
4. Ease of Operation: Typically liquid or semi-solid, they are easy to apply, facilitating efficient encapsulation and repairs of electronic components.
5. Environmental Safety: Their production and use generate no harmful substances, posing no risks to human health or the environment.

III. Applications

1. Electronic Product Encapsulation: Widely used for sealing integrated circuits, electronic components, and circuit boards. Encapsulating components in epoxy resins improves product reliability and lifespan.
2. Adhesion and Fixation: Employed for bonding and securing electronic parts, such as solder joints and connectors, ensuring stability and safety.
3. Protective Function: Guards against moisture, oxygen, and other corrosive elements, extending the lifespan of devices.
4. Repair and Maintenance: Acts as a repair material for damaged devices, restoring functionality to compromised components.

IV. Development Trends

1. Green and Eco-Friendly: Increasing emphasis on environmental sustainability drives research toward reducing pollution and toxicity.
2. High Performance: Advancements focus on improving mechanical strength, electrical insulation, and corrosion resistance to meet stringent requirements.
3. Smart Manufacturing: Automation and intelligent systems (e.g., automated production lines and smart formulation technologies) enhance efficiency and cost-effectiveness.
4. Multifunctional Integration: Evolution toward multipurpose agents that combine encapsulation, bonding, and protection in one formulation.

As a vital electronic packaging material, epoxy-based encapsulation curing agents play a pivotal role in the electronics industry. With technological advancements and market demands, these agents will continue advancing toward higher performance, environmental sustainability, intelligence, and multifunctionality, ensuring greater reliability and safety for electronic devices.