1、Latent curing epoxy systems with reduced curing temperature and
Additionally, bisphenol A (BPA), Tetrachlorobisphenol A (TCBPA), and Tetrabromobisphenol A (TBBPA) were chosen to use as latent curing agents because of the less influence on the mechanical performance of the resin.
2、Mechanical Properties of Epoxy Compounds Based on Bisphenol a Aged in
The subject of this study is to compare the effect of operating factors on the strength of epoxy compounds made of epoxy resin based on bisphenol A and two different curing agents: tritethylenetetramine and polyaminoamide C.
3、Comparative Study of Different Methods of Synthesis and Their Effect on
The work presented in this paper deals with the comparative synthesis of diglycidyl ether-based tetrabromobisphenol-A (TBBPA) using both conventional and nonconventional methods in order to explore ...
4、Surface Chemistry and Molecular Dynamics of Epoxy Resin
In this study, we investigate the main reactions occurring on the surface of DEGBA/DEGBF epoxy resin following curing, post-curing, and thermal post-curing processes using Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS).
Highly selective conversion of tetrabromobisphenol A epoxy
Tetrabromobisphenol A epoxy resin (TBBPA-ER) is the most important nonmetallic composition of waste printed circuit boards (PCBs). Currently, the TBBPA-ER waste is mainly sent to incineration or landfills.
Experimental study on curing of bisphenol A epoxy resin
Taking the bisphenol A epoxy resin system as the research object, the thermal curing and microwave curing experiments were carried out. The relationship between the curing degree and the hardness of the product after thermal curing and microwave curing was analyzed.
A review of the curing rate and mechanical properties of epoxy resin on
Abstract 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.
(PDF) Comparative Study of Different Methods of Synthesis and Their
ABSTRACT: The work presented in this paper deals with the comparative synthesis of diglycidyl ether-based tetrabromobisphenol-A (TBBPA) using both conventional and nonconventional methods in...
The curing characteristics and properties of bisphenol A epoxy resin
In this paper, the maleopimaric acid (MPAc) curing agent was prepared from a renewable resource, rosin, and blended with a petroleum-based curing agent (methylhexahydrophthalic anhydride) to cure bisphenol A epoxy resin.
Comparative Study of Different Methods of Synthesis and Their Effect on
A majority of the epoxy resin formulations are investigated to have flammability attributes ranging from slow burning to self-extinguishing properties. The flame retardancy of epoxy resin can be achieved by the addition of halogenated compounds or phosphorated compounds or a mixture of both classes of compounds.
Tetrabromobisphenol A-based epoxy curing agents are critical industrial materials primarily used in the curing process of epoxy resins. These curing agents are widely favored for their excellent chemical stability, low viscosity, and superior electrical insulating properties. Below, I will introduce their basic characteristics, applications, and environmental impacts.
Introduction to Tetrabromobisphenol A-Based Epoxy Curing Agents
Definition and Chemical Structure
Tetrabromobisphenol A-based epoxy curing agents are compounds containing a tetrabromobisphenol A structure. Tetrabromobisphenol A is an organic compound with strong antioxidant properties. During the curing process of epoxy resins, these compounds react with reactive groups in the resin, promoting cross-linking to form a robust polymer network.
Basic Characteristics
- Chemical Stability: The presence of multiple reactive bromine atoms in its molecular structure endows tetrabromobisphenol A-based curing agents with exceptional chemical stability. They remain inert under diverse environmental conditions and resist chemical reactions.
- Low Viscosity: Compared to other epoxy curing agents, these agents exhibit lower viscosity, enhancing material processability, mixing efficiency, and ease of application.
- Electrical Insulating Properties: They offer优异的 electrical insulation, making them suitable for electronic and electrical products requiring dielectric protection.
- Thermal Stability: Under high-temperature conditions, these curing agents maintain their chemical stability and electrical insulation properties, enabling applications in harsh thermal environments.
Application Fields
Construction Industry
In construction, tetrabromobisphenol A-based curing agents are used for bonding and sealing materials like concrete and stone. They provide weather resistance, waterproofing, and extended lifespan for buildings.
Electronics and Electrical Industry
These curing agents are widely employed in manufacturing circuit boards, cable sheathing, switches, and sockets. They ensure reliable electrical insulation, mechanical strength, and safety in electronic products.
Automotive Manufacturing
In automobile production, they are used for exterior/interior trim, chassis components, and other parts. Their corrosion resistance and wear resistance enhance vehicle performance and longevity.
Aerospace Industry
Tetrabromobisphenol A-based curing agents are critical for manufacturing aircraft and spacecraft components. Their high strength and heat resistance ensure reliability and safety in aerospace applications.
Environmental Impact
Ecological Risks
Despite their advantages, excessive use or improper disposal of tetrabromobisphenol A-based curing agents may contaminate soil and water. Adherence to regulations and standards during usage and waste management is essential to minimize environmental harm.
Sustainability Considerations
To advance sustainability, eco-friendly epoxy curing agents can replace traditional ones. These alternatives typically have lower toxicity and environmental footprints while offering better performance and cost-effectiveness, aligning with modern industrial demands.
As a vital industrial material, tetrabromobisphenol A-based epoxy curing agents play a key role across various sectors. growing environmental awareness and sustainable development strategies necessitate the adoption of greener curing agents. By transitioning to eco-friendly alternatives, we can reduce environmental impact, improve productivity, and contribute to global sustainability goals.
