1、环氧树脂固化剂的常见类型及其固化机理
如在 145-165 ℃时，环氧树脂可在 30 分钟内固化；三氮化硼乙胺络合物在室温下也很稳定，高于 100 ℃时环氧树脂可固化。 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 ...
2、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. In the presence of curing agents, epoxy resins become rigid and infusible. Eco-friendliness and ...
3、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.
4、环氧树脂的固化剂 (Curing Agents for Epoxy Resin)
环氧树脂的固化剂 (Curing Agents for Epoxy Resin)-尽管DICY具有较长的适用期，但由于其固化温度太高，时间太长，因此还是需要使用促进剂。常用的促进剂包括叔胺，有机脲，咪唑和芳香胺。7-3.有机酰肼（Organic-acidhydrazide）有机酰肼是一种具有高熔点的粉末状物质，由肼和羧酸
5、Improved curing performances of epoxy resin by a structure
Then, effect of synthesis conditions on the performances of curing agent was studied, including the reactant ratio, reaction temperature and time. To improve the heat stability of curing agent and dispersion ability of epoxy resin latex, 5 wt% of HAc (to -NH) was applied as a neutralization agent.
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.
Formulating Epoxy Systems: Resins and Curing Agents
In light of the recent development of tri and tetra-functional epoxy resins, we began to investigate the effectiveness of anhydrides as curing agents for these resins.
Comparing and Contrasting Epoxy Resin Curing Agents A Comprehensive Guide
Epoxy resin is a versatile and widely used material, known for its excellent adhesion and durability. However, to achieve optimal curing and performance, it requires the addition of a curing agent or hardener. 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 ...
A review of the curing rate and mechanical properties of epoxy resin on
The curing rate of epoxy resins is a critical parameter that significantly influences the curing properties of polymer matrix composites (PMCs). It plays a vital role in meeting high-performance requirements, particularly in achieving rapid development of high modulus. The paper reviews the current state of research on the curing of epoxy resins in PMCs, including theoretical studies on the ...
Effect of Curing Agent Type on Curing Reaction Kinetics of Epoxy Resin
Curing agent types have a great influence on the reaction kinetics and post-curing properties of epoxy resins. The dynamic process of epoxy resin curing reaction will affect the structure ...
Epoxy Resin 703 Curing Agent
In modern industrial and construction fields, the epoxy resin 703 curing agent plays a critical role as an essential chemical material. It not only demonstrates excellent adhesive properties, mechanical strength, and chemical corrosion resistance but also effectively enhances the wear resistance and impact resistance of materials. This article provides a comprehensive exploration of the epoxy resin 703 curing agent, covering its fundamental characteristics, application examples, and future development trends to offer readers a thorough understanding.
I. Fundamental Characteristics
1. Composition and Components
The epoxy resin 703 curing agent is a curing agent based on bisphenol A epoxy resin. It consists of two epoxy groups and one hydroxyl group, capable of compatibility with various resin systems to form stable chemical bonds. The primary features of this curing agent include its high crosslinking density and excellent chemical stability, enabling outstanding performance across diverse applications.
2. Physical Properties
The physical properties of the epoxy resin 703 curing agent include viscosity, color, and odor. Generally, this curing agent exhibits high viscosity, but after appropriate dilution, it can meet the requirements of different construction conditions. Its color is light yellow or colorless and transparent, with a slight odor, minimizing environmental and human health impacts.
3. Chemical Reactions
During the curing process, the epoxy resin 703 curing agent undergoes a series of chemical reactions, primarily involving the ring-opening polymerization of epoxy groups and the condensation reaction of hydroxyl groups. These reactions gradually form a three-dimensional network structure in the resin system, resulting in enhanced mechanical properties and chemical stability.
II. Application Fields
1. Electronics and Electrical Industry
In the electronics and electrical sector, the epoxy resin 703 curing agent is widely used for circuit board bonding, encapsulation, and insulating protective layers. It provides superior electrical performance and mechanical strength while maintaining low dielectric constant and thermal conductivity, effectively preventing electrical failures and heat loss.
2. Automotive Manufacturing
In automotive manufacturing, this curing agent is employed for bonding interior and exterior components, sealing, and producing shock-absorbing materials. Its exceptional wear resistance and weather resistance ensure stable performance under complex environmental conditions.
3. Construction Industry
Within the construction industry, the epoxy resin 703 curing agent is utilized for reinforcement and repair of concrete structures, waterproofing, moisture protection, and anti-corrosion coatings for steel structures. It significantly improves structural strength and extends the lifespan of buildings while reducing maintenance costs and environmental impact.
III. Future Development Trends
As technology advances and society evolves, the application scope and performance requirements of the epoxy resin 703 curing agent continue to rise. Future development trends are manifested in the following areas:
1. Eco-Friendly Product Development
To address growing environmental challenges, developing low-VOC (Volatile Organic Compound) epoxy resin 703 curing agents will become a priority. This not only reduces environmental pollution but also enhances market competitiveness.
2. High-Performance Innovations
To meet demanding engineering needs, creating curing agents with higher mechanical strength, lower water absorption, and superior temperature resistance will be a key focus. Such advancements will ensure stable performance under extreme conditions.
3. Application of Intelligent Production Technologies
Leveraging advanced intelligent manufacturing technologies, such as automated batching systems and online detection equipment, will improve production efficiency and product quality. This helps lower costs and accelerate time-to-market.
As a critical chemical material, the epoxy resin 703 curing agent plays an irreplaceable role in modern industrial and construction fields. By deeply understanding its fundamental characteristics, application potential, and future trends, we can better grasp its prospects and driving forces in various industries. With continuous technological progress and evolving societal demands, the epoxy resin 703 curing agent will continue to lead new trends in industry development through its卓越的性能and broad application potential.
