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、Journal of Applied Polymer Science
Several techniques were used to systematically investigate the effects of the structure and content of the two curing agents on the properties of the cured products. The Fourier transform infrared analysis demonstrated that epoxy resin reacted with soybean oil–based curing agents.
3、A curing agent for epoxy resin based on microencapsulation of 1
Results demonstrated that the optimal particle size was about 10.8 μm, and the maximum content of 1BMI in MCs was 33% corresponding to 60% 1BMI in oil phase. Afterward, the 1BMI MCs were used as latent curing agent (LCA) for epoxy resin (EP).
4、Synthesis and Characterization of Bio
A novel self-curing epoxy resin was synthesized using bio-oil. Bio-oil was produced by hydrothermal liquefaction of loblolly pine and utilized as a biopolyol in the synthesis of bio-oil-based epoxy resin (BOBER) for the first time. Hydroxyl groups in bio-oil were analyzed by quantitative 31P NMR. It was found that not only does the total hydroxyl number of bio-oil influence the yield and epoxy ...
5、Preparation and properties of soybean oil–based curing
Several techniques were used to systematically investigate the effects of the structure and content of the two curing agents on the properties of the cured products. The Fourier transform infrared analysis demonstrated that epoxy resin reacted with soybean oil–based curing agents.
Sustainable Bio
Epoxy systems are typically formulated in the form of a compound containing epoxy resin and a curing agent with modifiers and additives. Most of these epoxy resins, curing agents, and reactive additives used today still originate from fossil fuels.
Preparation and properties of soybean oil
Several techniques were used to systematically investigate the effects of the structure and content of the two curing agents on the properties of the cured products. The Fourier transform...
Journal of Applied Polymer Science
To transform epoxy resins into crosslinked networks with desirable thermal and mechanical properties, the resins must be cured with a curing agent. This review encompasses recent developments using bio-based epoxy resins and bio-based epoxy curing agents.
A critical review of dynamic bonds containing curing agents for epoxy
Investigated the mechanical, thermomechanical, thermal, and recycling properties of the epoxy thermosets cured by developed curing agents. Addressed the challenges, opportunities and emerging trends in the field.
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.
Epoxy Resin Oil-Based Curing Agents
In the vast realm of modern materials science, epoxy resins have become indispensable across numerous fields due to their unique physical and chemical properties. Among these, oil-based curing agents, as a critical component of epoxy resin systems, directly influence the quality and performance of final products. This article provides an in-depth exploration of various aspects of oil-based curing agents for epoxy resins, including their definition, classification, characteristics, and significance in practical applications.
Definition Oil-based curing agents are substances that facilitate the curing reaction of epoxy resins and other resin systems. By chemically reacting with the epoxide groups in epoxy resins, they form stable three-dimensional network structures, endowing materials with excellent mechanical strength, chemical resistance, and dimensional stability. The selection and ratio of oil-based curing agents directly affect the curing time, temperature, and the physical and chemical properties of the final product. understanding the performance characteristics of oil-based curing agents is crucial for the preparation and application of epoxy resin materials.
Classification Oil-based curing agents can be categorized from multiple perspectives, primarily including:
- Amine-based curing agents: Widely used due to their high catalytic activity and low cost.
- Anhydride-based curing agents: Preferred for high-performance applications due to their high crosslinking density and heat resistance.
- Imidazole-based curing agents: Valued for their excellent low-temperature curing capabilities and sensitivity to moisture.
Each type has specific performance traits and application scenarios. For example, amine-based curing agents dominate general-purpose epoxy systems, while anhydride-based agents are favored in high-temperature or structural applications. Imidazole-based agents are often chosen for low-temperature or humidity-controlled environments.
Selection Criteria Beyond the type of curing agent, factors such as reactivity, volatility, toxicity, and environmental impact must be considered. Highly reactive curing agents accelerate curing but may lead to incomplete reactions or excessive byproducts. Low-volatility agents reduce health risks and safety hazards during handling, while low-toxicity options align with eco-friendly manufacturing goals. Balancing these factors ensures optimal curing processes and product performance.
Importance in Applications The role of oil-based curing agents extends far beyond curing speed and efficiency. They significantly influence the mechanical, weathering, and electrical properties of epoxy materials. For instance, in aerospace composites, anhydride-based agents enhance thermal stability; in construction adhesives, amine-based agents improve bonding strength. Thus, rational selection is essential to meet application-specific requirements.
Research Advancements Ongoing innovations focus on developing next-generation oil-based curing agents. Examples include:
- Low-volatility agents: Reducing odor and improving workplace comfort.
- Nanocomposite-modified agents: Adding functionalization potential, such as enhanced durability or self-healing properties.
- Bio-based alternatives: Aligning with sustainable development trends.
As a core component of epoxy resin systems, oil-based curing agents determine the quality and applicability of final products. Through advancements in materials and technology, future curing agents are expected to become more versatile, efficient, and environmentally friendly, further driving innovation in industries ranging from electronics to aerospace. Understanding their mechanisms and evolution is key to harnessing their full potential in material engineering.
