1、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.

2、Modified Epoxy Resin Processes

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.

3、Improving Epoxy Resin Performance Using PPG and MDI by One

In this study, epoxy resin was modified with MDI and PPG, compared with the traditional polyurethane prepolymer modification, and the effect of the modifier addition on the mechanical properties of epoxy resin was discussed.

4、Reactive Modified Epoxy Resin and Its Miscible Blends Based on Recycled

The curing kinetics of the pure reactive modified epoxy resin (baseline) and its mixtures with RO of different concentrations were investigated under both isothermal and nonisothermal conditions using small amplitude oscillatory shear flow.

Modified epoxy resins, processes for making and using

Discloses a technique for modifying an epoxy resin by reacting with addition copolymerizable monomer in the presence of at least 3% of benzoyl peroxide at about 110° C. to 120° C., or the free radical initiating equivalent thereof.

Modification Processes of Epoxy Resins

Experimental results on modified epoxy resins are collectively summarized, which focus on the structure, curing, and alternate methods for modification of epoxy resins.

Preparation Method and Performance Study of Nanocellulose/Epoxy Resin

Although most research focuses on the chemical grafting modification of CNCs and its impact on the mechanical and adhesive properties of CNC/epoxy resin composites, this study employs multiple modification techniques to prepare epoxy resin composites, conducting various tests such as thermal conductivity, vacuum steam adsorption and dielectric ...

Preparation of modified epoxy resin with high hydrophobicity, low

This process, when combined with the copolymerization with epoxy resin (E51) using diamino-diphenylmethane (DDM) as the curing agent, resulted in PDMS-modified EP materials with enhanced hydrophobicity, low dielectric, high toughness, and flame retardancy.

Preparation and Application of Polyurethane

Epoxy resins always suffer from high brittleness and poor resistance to crack initiation and propagation due to their high cross-linked density. In this work, a highly tough, self-healable, degradable, and recyclable polyurethane-modified epoxy material was successfully prepared via combining long and flexible chains with dual dynamic covalent bond/hydrogen bond cross-linking networks into the ...

Research status of mechanical modification of epoxy resin

To achieve this, researchers have adopted various methods to enhance the mechanical and physical properties of epoxy resin. Epoxy resin modification is a common method and has been subject to numerous innovations in recent years.

In modern industry, epoxy resins have become a critical material in numerous fields due to their excellent adhesive properties, superior mechanical strength, and chemical stability. With advancements in technology, the demands for the performance of epoxy resins have steadily increased, and traditional epoxy resins can no longer meet the requirements of all application scenarios. Consequently, modified epoxy resin processes have emerged. By introducing different modifiers, these processes endow epoxy resins with new properties and expand their application range.

The core of modified epoxy resin processes lies in chemically or physically modifying traditional epoxy resins to achieve better comprehensive performance. Common modification methods include:

1. Chemical Modification: Altering the structure of epoxy resins through chemical reactions to incorporate functional groups or molecular chains with specific properties. For example, introducing siloxane groups can enhance temperature resistance, while incorporating carbamate groups improves flexibility.

2. Physical Modification: Using mechanical means such as filling or reinforcement to process epoxy resins, thereby improving their mechanical properties.

3. Nanotechnology: Employing nanoparticles as fillers or additives to enhance the mechanical properties, heat resistance, and electrical insulation of epoxy resins.

4. Radiation Technology: Treating epoxy resins with gamma rays, electron beams, or other radiation methods to form cross-linked networks on their surfaces, thereby improving chemical resistance and thermal stability.

5. Bio-based Modification: Replacing some organic solvents with bio-based compounds to reduce volatility while retaining basic properties.

6. Surface Treatment: Improving the interfacial adhesion between epoxy resins and substrates through coatings, surfactants, or other techniques.

7. Blend Modification: Blending epoxy resins with other high-performance polymers to achieve superior overall properties.

8. Self-assembly Technology: Utilizing molecular interactions to enable the self-assembly of epoxy resin components, resulting in composite materials with specific structures.

9. Microencapsulation: Encapsulating modifiers in microscopic capsules and dispersing them into the epoxy matrix to enhance stability under specific conditions.

10. Graft Copolymerization: Introducing new functional groups onto epoxy resin molecular chains through graft copolymerization reactions, thereby imparting novel properties.

Each modification method has distinct characteristics and can be selected based on specific application needs. For instance, physical modification and nanotechnology may be chosen for applications requiring high strength and wear resistance; chemical modification and surface treatment are suitable for scenarios demanding strong adhesive properties; and radiation technology or graft copolymerization can be used for high-temperature environments.

The development of modified epoxy resin processes has expanded the potential applications of epoxy resins. As new materials technology continues to advance, the performance of epoxy resins will become even more exceptional, and their application fields will grow. it is important to note that as a polymer material, the modification of epoxy resins often involves increased costs and greater technical complexity. balancing performance with cost reduction will remain a critical direction for future research.