1、Bio
Improving the toughness of epoxy resin (EP) while maintaining its strength is still considered a huge challenge. Herein, a novel bio-based curing agent, PA–DAD, has successfully been developed for EP that provides both mechanical reinforcement and flame retardancy.
2、Synthesis, Curing Behaviors and Properties of a Bio
In this research, a new eugenol-based epoxidized silicone resin (SITEUP) was synthesized (Scheme 1) and then cured with epoxy resin to improve toughness.
3、X
Product Information X-48-1801 is a silicone-based non-yellowing polyisocyanate curing agent. When cold blended with polyisocyanate curing agents, it improves various coating performance, especially weather resistance and oil repellency.
4、Organic silicone
The silicone-modified epoxy curing agent system is rarely reported yet. This study aims to prepare the polysiloxane (PS)-modified waterborne epoxy coatings based on aqueous curing agents technology.
5、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.
The Impact of Various Curing Agents on Bio
In this study, our research group targeted to improve the competence of bio-based epoxy resins for diverse applications by investigating the effect of multiple curing agents including DETDA, Citric Acid (CA), and Tannic Acid (CA), on their characteristics.
Organic silicone
Purpose The silicone modifications of two-component epoxy resin coatings are commonly built on epoxy resins rather than on epoxy curing agents. The silicone-modified epoxy...
Phase morphology modulation of silicone
In this study, phase control of silicones in modified epoxy resins was achieved by modulating the curing process, and a series of silicone-modified epoxy resins with different phase sizes were prepared.
The Effect of Curing Agents on Basic Properties of Silicone
A silicone-epoxy hybrid resin was cured with 3-aminopropyltriethoxysilane (AMEO) and AMEO/3-aminopropyltrimethoxysilane (AMMO) mixture. The effect of resin-to-hardener ratio on cured...
Curing agents for epoxy resins
These crosslinkers , hardeners or curing agents as they are widely known, promote cross-linking or curing of epoxy resins. Curing can occur by either homopolymerisation initiated by a catalytic curing agent or a polyaddition/copolymerisation reaction with a multifunctional curing agent.
In modern industrial and construction fields, epoxy resin is widely utilized due to its exceptional physical properties, chemical stability, and superior adhesive performance. the curing process of epoxy resin often requires high temperatures and extended reaction times, which not only limits its efficiency in applications like rapid成型 but also imposes stringent requirements on the operating environment. Against this backdrop, silicone oil-based active curing agents have emerged as an innovative solution, offering a new approach to epoxy resin curing.
Silicone oil, a common organosilicon compound, boasts excellent resistance to extreme temperatures, electrical insulation, and hydrophobicity. These properties make it an ideal carrier for curing agents. By reacting with epoxy resin, silicone oil enables a mild and efficient curing process. Compared to traditional curing agents such as multifunctional isocyanates (MDI) or phenolic resins, silicone oil-based curing agents reduce both the required curing temperature and the emission of harmful substances during the process.
The mechanism of action of silicone oil-based curing agents involves reacting with the hydroxyl groups on the epoxy resin molecular chains to form stable siloxane bonds. This reaction typically proceeds at room temperature, significantly shortening the curing time and lowering temperature requirements. Additionally, due to the high bond energy of siloxane bonds, the cured epoxy resin exhibits excellent mechanical strength and thermal resistance.
In practical applications, silicone oil-based curing agents demonstrate several advantages. First, they are compatible with various types of epoxy resins, including bisphenol-A, cycloaliphatic, and aromatic epoxies, thereby broadening the scope of curing agent applications. Second, their use simplifies the curing process, reducing complexity and enhancing production efficiency. Finally, owing to their environmentally friendly characteristics, these curing agents have gained widespread traction in fields such as electronic encapsulation, aerospace, and automotive manufacturing.
silicone oil-based curing agents are not without limitations. Their relatively slower curing speed may impact scenarios with strict production cycle requirements. Additionally, their higher cost poses a challenge to broader adoption. Nevertheless, as technology advances and costs decline, silicone oil-based curing agents are poised to play a more significant role in the future of epoxy resin curing.
Looking ahead, with advancements in materials science, it is reasonable to anticipate that silicone oil-based active curing agents will synergize with other novel curing agents, such as amine-based and acid anhydride curing agents, to create more diversified and efficient curing systems. This integration will help meet the diverse needs of industries for epoxy resin curing technologies, driving the application and development of epoxy resins and their composites across broader domains.
silicone oil-based active curing agents offer a revolutionary solution for epoxy resin curing with distinct advantages. As technology evolves and applications expand, these agents are expected to assume greater importance in the field of epoxy resin curing, unlocking new possibilities and opportunities for industrial production and scientific research.
