1、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.

2、THE COATINGS EXPERT

For ambient-cure epoxy systems, amine curing agents for chemical resistant applications can be separated into two basic categories, aliphatic amine and cycloaliphatic amine curing agents.

3、Functional dendritic curing agent for epoxy resin: Processing

Considering the advantage of dendrimers, such as high density of functional terminal groups, greater solubility in resins, we proposed to use them as modifying agents to prepare functionalized curing agents for curing and toughening epoxy resins.

Epoxy Curing Agents: A Comprehensive Understanding of Their

Explore the basic knowledge of epoxy curing agents, including their classification, working principle, wide application in construction, electronics, automotive and other industries, as well as market trends and the latest developments of environmentally friendly products.

Curing Agents for Epoxy Resin (固化剂)

The epoxy resin compositions of Three Bond currently on the market are the Three Bond 2000 Series (base agent for epoxy resin), the Three Bond 2100 Series (curing agent for epoxy resin), and the Three Bond 2200 Series (one-part thermal cure epoxy compound resins).

Air Chemistry Waterborne Epoxy Topcoat Curing Agent

A novel, waterborne epoxy system comprised of non-ionic stabilized dispersions of a solid epoxy resin and an amine curing agent has been designed for ambient-cure coatings.

Types of Epoxy Curing Agents – Part 1

Types of Epoxy Curing Agents: 1. Amines/ Polyamines: Amine curing agents are widely used in epoxy formulations for their ability to initiate and control the curing process. They react with epoxy resins through an amine group, resulting in the formation of a cross-linked network.

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.

EVERYONE WINS WHEN YOU CHOOSE ANQUAMINE® 728 CURING AGEN

ANQUAMINE® 728 CURING AGENT he waterborne agent of choice for industrial applications. It allows applicators to apply a second coat after only 4 hours; providing us ithout sacrificing aesthetics or allowing for carbamation. Primers and topcoats formulated with ANQUAMINE 728 and specialty epoxy resin ANCAREZ® AR-555 give applicators a competitiv

Comparing and Contrasting Epoxy Resin Curing Agents A Comprehensive Guide

In this blog post, we will compare and contrast different types of epoxy curing agents, including epoxy resin hardeners, modified cycloaliphatic amine epoxy hardeners, high functional curing agents, and high-performance hardeners.

In modern industrial and construction fields, epoxy topcoats are widely used as critical surface protection materials for various substrates. The superior performance of epoxy topcoats relies on their unique curing systems, with curing agents being an indispensable component. This article explores the roles, classifications, selection criteria, and application points of curing agents for epoxy topcoats, aiming to provide references for professionals in related fields.

1. Function of Curing Agents for Epoxy Topcoats

Curing agents are essential for initiating chemical reactions between epoxy resins and curing agents, forming stable three-dimensional network structures and achieving desired physical properties. For epoxy topcoats, the main functions of curing agents include:

1. Promoting Cross-Linking: Active functional groups in curing agents react with hydroxyl groups in epoxy resins to form chemical bonds, increasing cross-linking density. This enhances hardness, impact resistance, and chemical resistance.

2. Viscosity Adjustment: Curing agents reduce the viscosity of epoxy resins, improving workability and coating efficiency.

3. Improving Leveling: Curing agents, typically with low volatility, reduce surface bubbles and pinholes, ensuring smoother and more aesthetically pleasing coatings.

4. Enhancing Adhesion: Organic resins in curing agents form strong chemical bonds with substrate surfaces, improving adhesion.

2. Classification of Curing Agents for Epoxy Topcoats

Based on their properties and characteristics, curing agents for epoxy topcoats can be classified as follows:

1. Aliphatic Amine Curing Agents: Known for thermal stability and water resistance, suitable for high-temperature and water-resistant applications.

2. Aromatic Amine Curing Agents: Offer good weather resistance and flexibility, ideal for outdoor or variable climate conditions.

3. Anhydride Curing Agents: Provide high cross-linking density and excellent mechanical properties, suited for high-strength and wear-resistant scenarios.

4. Imidazole Curing Agents: Characterized by alkali resistance and corrosion protection, commonly used in chemical equipment and marine engineering.

3. Selection Criteria for Curing Agents

When selecting curing agents for epoxy topcoats, consider:

1. Application Environment: Choose curing agents based on temperature, water resistance, and weather resistance requirements.

2. Coating Performance: Ensure compatibility between curing agents and epoxy resins to achieve target physical properties.

3. Cost Efficiency: Balance performance and cost, prioritizing economical options that meet performance standards.

4. Safety: Select environmentally friendly curing agents free from hazardous substances.

4. Application Points for Curing Agents

Key considerations when using curing agents include:

1. Accurate Proportioning: Mix curing agents and epoxy resins strictly according to specified ratios.

2. Thorough Mixing: Ensure uniform dispersion of curing agents to avoid sedimentation.

3. Temperature Control: Cure coatings at optimal temperatures, as extreme temperatures may degrade performance.

4. Time Management: Adjust curing times based on curing agent types and performance requirements to avoid over- or under-curing.

Curing agents are vital for achieving desired coating performance in epoxy topcoats. By selecting and applying curing agents rationally, the performance of epoxy topcoats can be significantly enhanced to meet diverse industrial and construction needs. With advancements in technology and stricter environmental regulations, future research on curing agents will prioritize eco-friendliness, efficiency, and cost-effectiveness to align with market demands.