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.

2、Effect of the Structure of Epoxy Monomers and Curing Agents: Toward

The low intrinsic thermal conduction and high dielectric properties of epoxy resins have significantly limited their applications in electrical and electronic devices with high integration, high frequency, high power, and miniaturization.

3、Epoxy Adhesives

One-component epoxy adhesives are prepared and supplied by mixing all formulated components in advance including epoxy resin and curing agent. One-component epoxy adhesives usually need cure at elevated temperature and store at low temperature in a refrigerator or even freezer.

4、Epoxy Resin Adhesives

There are various types of epoxy resin curing agents, and the curing conditions and working life are determined depending on the type and amount used.

5、环氧树脂固化剂的常见类型及其固化机理

潜伏固化剂可与环氧树脂混合制成液态化合物，简化环氧树脂产品的应用，其应用范围从单一的包装胶粘剂向涂料、浸渍漆、灌封料、粉末涂料等多方面发展。

Epoxy Resins for Adhesives and Sealants

Get comprehensive information about the fundamentals of epoxy resins used in adhesives, main types of chemical classes, and selection tips to find the right product for your adhesive or sealant formulation.

Epoxy Additives and Polyamides

Besides products based on isophorone chemistry the portfolio contains a full range of high quality epoxy curing agents and modifiers for a wide range of applications, including marine and protective coatings, civil engineering and construction adhesives and composites.

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.

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.

Epoxy Resin Adhesives: Modification and Applications

The epoxy-based adhesive hardly generates low-molecular products during curing, has a small linear expansion coefficient, stable dimensions, small internal stress and better bonding strength. Epoxy-based adhesives meet the requirements of structural adhesives, but they also have some shortcomings.

Epoxy resin adhesive, a material widely used in electronics, construction, and automotive manufacturing, is renowned for its exceptional adhesive properties. when it encounters a mysterious substance called a "non-curing agent," its otherwise stable bonding performance is disrupted, preventing the adhesive from curing and triggering a series of problems. This article aims to explore the complex relationship between epoxy resin adhesive and non-curing agents, as well as their impact on modern industry.

I. Working Principle of Epoxy Resin Adhesive

Epoxy resin adhesive is a composite material composed of thermosetting resins, curing agents, fillers, and additives. When these components are thoroughly mixed, the reactive groups in the thermosetting resin undergo a chemical reaction with the curing agent, forming an insoluble and infusible three-dimensional network structure, thus achieving adhesion. This process typically requires specific temperature and time conditions. Once curing is complete, the adhesive transitions from a liquid to a solid state, exhibiting its bonding properties.

II. The Role and Impact of Non-Curing Agents

As the name suggests, non-curing agents are substances that inhibit or prevent the curing of epoxy resin adhesive. These agents may be chemical compounds, physical barriers (such as temperature, humidity, or light), or environmental factors. The presence of non-curing agents disrupts the adhesive’s ability to cure under predefined conditions, leading to reduced performance or even failure.

III. Types and Characteristics of Non-Curing Agents

1. Chemical Inhibitors: These non-curing agents are compounds with specific chemical properties that react with reactive groups in the epoxy resin, suppressing the curing reaction. For example, certain organic acids can react with phenolic groups in the resin, blocking the curing process.

2. Physical Barriers: In addition to chemical inhibitors, physical obstructions are a common type of non-curing agent. These include excessive temperature, high humidity, or intense light, which directly hinder the curing process.

3. Environmental Factors: In some cases, non-curing agents may not originate from the adhesive itself but from external environments. For instance, oxygen or moisture in the air can negatively affect curing.

IV. Impact on Industrial Production

1. Product Quality Issues: The inability of the adhesive to cure as expected leads to quality defects, such as insufficient bonding strength, poor durability, and susceptibility to detachment. These issues not only affect product functionality but also pose safety hazards.

2. Reduced Production Efficiency: Failed curing disrupts workflow, increasing production costs, extending cycles, and weakening competitiveness.

3. Rising R&D Costs: Addressing non-curing agent-related problems often requires additional investment in research and development, raising costs and risking economic losses if solutions fail.

V. Mitigation Strategies and Solutions

1. Select Compatible Non-Curing Agents: Choose non-curing agents compatible with the adhesive or adopt alternative methods to neutralize their effects. For example, control environmental conditions (temperature, humidity) or use specialized curing agents.

2. Improve Processing Techniques: Enhance curing efficiency and quality through advanced processes, such as automated temperature/humidity control or real-time adhesive monitoring.

3. Strengthen Raw Material Management: Ensure precise proportions and high-quality ingredients in the adhesive. Monitor raw material sources to prevent substandard inputs.

4. Establish Robust Quality Control: Implement strict quality management systems to monitor every production step, promptly address non-curing agent-related issues, and ensure product reliability.

The interplay between epoxy resin adhesive and non-curing agents is a critical concern in modern industry. By understanding their mechanisms and影响因素, we can better master adhesive usage and maintenance, improving product quality and efficiency. Continuous innovation and proactive problem-solving are essential to overcoming challenges posed by non-curing agents. Only through such efforts can businesses thrive in competitive markets and build a foundation for sustainable growth.