1、Slow Curing of Epoxy Resin Underwater at High Temperatures
In this work, a novel curing agent, 4,4′- ( (methylenebis (4,1-phenylene))bis (azanediyl))bis (4- (furan-2-yl)butan-2-one) (AFPA), has been designed and synthesized via a one-pot method. The gelation time of epoxy system with AFPA underwater at 120 and 150 °C reaches 20 and 8 h, respectively.
2、Influence of different composite curing agents on the rapid curing
In particular, effective formulations are designed for mixing fast and slow curing agents, studying their effects on the curing behavior, curing quality, and mechanical properties of epoxy resins and elucidating their influence mechanisms.
3、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.
4、Low viscosity and low temperature curing reactive POSS/epoxy hybrid
Results demonstrated that the OPEP system has excellent processability with low viscosity and long processing window period and satisfies the practical requirements of low-temperature curing.
5、Thermal curing of epoxy resins at lower temperature using 4
To expand the application fields of epoxy resins, there has been a growing demand for thermal latent curing agents that combine a lower curing temperature with a long storage lifetime for a one-component epoxy formulation.
Real
Controlling and monitoring the processing parameters during epoxy manufacturing is a challenging task and their variation impacts the curing process of the polymer and its final quality.
Influence of different composite curing agents on the rapid curing
In particular, effective formulations are designed for mixing fast and slow curing agents, studying their effects on the curing behavior, curing quality, and mechanical properties of epoxy...
Effect of Curing Agent Type on Curing Reaction Kinetics of Epoxy Resin
In this paper, low molecular weight polyamides, aromatic amines and anhydrides were selected as three kinds of curing agents and their isothermal viscosity-time properties were studied to...
Slow Curing of Epoxy Resin Underwater at High Temperatures
Epoxy resins have been widely applied in various industrial fields,because of their high performances.However,previous studies mainly focused on low and medium temperatures;thus,curing behavior at high temperatures was less documented,which largely limits the deep understanding of epoxy resin formation and their applications in wider conditions ...
211005_WP_Epoxy Curing Agents _en_Freigabe.indd
Epoxy adhesives essentially consist of an epoxy resin and a curing agent. Usually, the epoxy resins are monomeric or oligomeric, bi- or polyfunctional oxiranes which are mainly derived from bisphenols or polyphenols.
Epoxy Resin Slow-Curing Agent: Performance, Applications, and Future Prospects
1. Overview Epoxy resin is a critical high-performance polymer material widely used in numerous fields due to its excellent physical and chemical properties. traditional epoxy resins exhibit prolonged curing times, which hinder their efficiency in applications requiring rapid response. Consequently, developing a slow-cure epoxy hardener with rapid-curing capabilities has become a significant research focus.
2. Performance Characteristics of Epoxy Resin Slow-Curing Agents
1. Rapid Curing Compared to conventional epoxy resins, slow-cure hardeners accelerate the curing process, enabling completion within a short timeframe. This substantially reduces construction cycles, proving invaluable for production environments or emergency repairs demanding quick responses.
2. Excellent Adhesion Slow-cure hardeners ensure robust bonding between epoxy resin and various substrates, enhancing structural stability and durability.
3. Superior Mechanical Properties These hardeners significantly improve the mechanical strength and toughness of epoxy resins, making them suitable for high-load applications.
4. Environmental Performance Slow-cure hardeners typically have low Volatile Organic Compound (VOC) content, minimizing environmental and health impacts. This advantage is particularly beneficial in applications with strict eco-requirements.
3. Applications of Epoxy Resin Slow-Curing Agents
1. Construction Industry In construction, slow-cure hardeners facilitate rapid repair of concrete surface coatings and waterproof/anticorrosion treatments. Their fast-curing capability boosts施工效率（construction efficiency）and quality.
2. Automotive Manufacturing In automotive production, these hardeners enable quick repairs of vehicle body coatings and seals, offering manufacturers greater flexibility and time savings.
3. Aerospace Sector For aerospace applications, slow-cure hardeners support rapid repairs of aircraft fuselage surfaces and bonding/fixation of aviation components, meeting urgent maintenance demands.
4. Future Prospects Advancements in technology will drive further innovation in slow-cure hardeners. Future developments are expected to prioritize high performance, low toxicity, and enhanced eco-friendliness. Such progress will expand the applicability of epoxy resins across industries, propelling related sectors forward.
As an emerging material, epoxy resin slow-cure hardeners offer unique advantages through their rapid-curing properties. unlocking their full potential requires ongoing research and development. With continuous innovation, slow-cure hardeners are poised to play increasingly vital roles, delivering greater convenience and value to diverse fields.
