1、Curing and degradation kinetics of crosslinked epoxidized soybean oil

New curing agent for epoxies based on isosorbide: isosorbide methylphthalate acid (IMPA). Crosslinking of ESO with IMPA has advantages over curing with anhydrides. IMPA makes the curing simpler and less toxic: it avoids the use of amine catalysts.

2、Epoxidized soybean oil cured with tannic acid for fully bio

Fully bio-based EP thermosets from epoxidized soybean oil and tannic acid were prepared for versatile applications under moderate curing conditions.

3、Preparation of high

Ultraviolet (UV)-curable coatings made from acrylated epoxy soybean oil (AESO) combine the advantages of renewable biobased resources and energy-efficient UV-curable materials, so they serve as the primary research objects for developing eco-friendly coatings.

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.

Bio

2.1 Amine hardeners widely used as curing agents for generating epoxy resin. For ESO, a series of amines used as curing agents are listed in Table 1 and the re c-tion scheme between ESO and amine is shown in Figure 1. Most of the researchers focused on the investigation of the cross-linking process of partially bio-based polymers becau

Curing kinetics of bio‐based epoxy resin based on epoxidized soybean

New thermoset with a high bio-based content was synthesized by curing epoxidized soybean oil (ESO) with a green curing agent maleopimaric acid catalyzed by 2-ethly-4-methylimidazole.

Curing and degradation kinetics of crosslinked epoxidized soybean oil

In this study, epoxidized soybean oil (ESO) was added to a typical diglycidyl ether of bisphenol A (DGEBA) epoxy resin system with an amine curing agent, and the cure and thermal...

Preparing soybean oil

In order to improve the flexibility properties of conventional epoxy resin, researchers from Guangdong University of Technology have synthesised two novel soybean oil-based curing agents for epoxy resin.

Moderate

However, the challenge remains to eliminate toxic chemicals while enhancing comprehensive properties. This study focused on synthesizing a degradable polymer from epoxidized soybean oil (ESO) without organic solvent at low temperature (120°C), accomplished through a modified curing agent (MCA).

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...

In modern industry and construction, epoxy soybean oil curing agents play an indispensable role as critical chemical raw materials. They are not only fundamental components in coatings, adhesives, sealants, and other products but also key drivers for enhancing the performance of these materials. This article aims to explore the chemical composition, application scope, and environmental impact of epoxy soybean oil curing agents, providing readers with a comprehensive and in-depth understanding.

Chemical Composition Epoxy soybean oil curing agents are high-molecular-weight compounds synthesized through chemical reactions using soybean oil as raw material. Their basic structure consists of polymers formed by the reaction of epoxy groups (-C-O-) with long-chain fatty acids in soybean oil. These curing agents exhibit excellent chemical stability, strong adhesion, water resistance, and oil resistance, enabling their widespread use across multiple fields.

Applications in Coatings In the coatings industry, epoxy soybean oil curing agents are essential for manufacturing various coatings. For example:

• Epoxy resin coatings: Prized for their mechanical strength, electrical insulation, and corrosion resistance, they are widely used in marine, bridge, and pipeline anticorrosion applications.
• Polyurethane coatings: Valued for their wear resistance, chemical resistance, and decorative properties, they are commonly applied in automotive and furniture finishes.
• Specialty coatings: These include high-temperature-resistant and conductive coatings tailored to specific industrial needs.

Role in Adhesives Epoxy soybean oil curing agents are pivotal in adhesive formulations. When combined with resins, they create high-strength, flexible adhesives such as epoxy resin and polyurethane adhesives. These products are extensively used in construction, aerospace, and electronics to improve bonding strength, heat resistance, and weatherability.

Other Applications Beyond coatings and adhesives, these curing agents show promise in sealants and waterproof materials. For instance, when paired with silicone or polyurethane, they form high-performance sealants and waterproof coatings that prevent moisture penetration and extend building lifespan.

Environmental Considerations The use of epoxy soybean oil curing agents raises environmental concerns due to potential emissions of volatile organic compounds (VOCs). Effective controls during production and application are necessary to minimize harm to human health and ecosystems. Additionally, stricter environmental regulations have spurred the development of low-VOC or VOC-free eco-friendly curing agents.

Future Outlook The evolution of epoxy soybean oil curing agents is trending toward greater sustainability and innovation:

1. Reducing VOCs: Research focuses on lowering VOC content while maintaining performance.
2. Novel Formulations: Incorporating bio-based materials and nanotechnology to enhance properties and expand applications.

As a vital chemical resource, epoxy soybean oil curing agents continue to drive advancements in industry and construction. With ongoing technological progress, they are poised to contribute even more significantly while aligning with environmental sustainability and circular economy goals.