1、Research status of mechanical modification of epoxy resin

The study reviews global research, compares different improvement methods, and tests their effects through experiments like tension, bending, compression, and impact tests. The goal is to help advance the field by understanding how different modifications affect epoxy resin’s performance.

2、Advances in Toughening Modification Methods for Epoxy Resins: A

Through a detailed analysis of experimental studies, this paper highlights the effectiveness of various toughening strategies and suggests future research directions aimed at further optimizing epoxy resin toughening techniques for diverse industrial applications.

3、Study on Modification of Epoxy Resin Reinforcing Adhesive Commonly Used

Epoxy resin reinforcing adhesive has become the most commonly used reinforcing adhesive in the aerospace field because of its wide bonding range, high bonding s

Study on Performance Modification of Epoxy Resin

This study proposes a performance optimization scheme of liquid asphalt mixtures (LAMs) based on epoxy resin-based material modification and investigates its various performances.

Performance optimization of epoxy resin

This study proposes a performance optimization scheme of liquid asphalt mixtures (LAMs) based on epoxy resin-based material modification and investigates its various performances.

Study on toughening modification of epoxy resin and its

The effects of the introduction of methyl hexahydrophthalic anhydride (MeHHPA) and bisphenol F-type epoxy resin (8220) on the curing kinetics, heat resistance, and mechanical properties of the casting body were investigated.

Research development on the toughness and performance of epoxy resin

This paper reviews the progress of domestic and international research on the performance of epoxy resin in a low-temperature environment and its toughening mechanism, involving toughening...

Practical Technology of Toughening Epoxy Resin (II): Modification

During the epoxy curing process, strong intermolecular forces are generated between SEP and epoxy resin, which further enhances the heat resistance of modified epoxy resins. Better insulation of epoxy resin are achieved by adding engineering plastics with fine insulation equipment.

Research progress on toughening modification of epoxy resin

Epoxy resin is a polymer material known for its high strength and rigidity,good chemical stability,and ease of processing.However,its brittleness seriously limits its applications.To address the toughening of epoxy resin,domestic and foreign scholars have conducted extensive research.The article mainly introduced the research progress on the ...

Advances in Toughening Modification Methods for Epoxy Resins: A

This work provides a comprehensive review of the recent advancements in the toughening modification methods for epoxy resins. The study explores a variety of approaches, including the incorporation of liquid rubbers, core–shell rubber particles, ...

Epoxy resin, as an important class of organic synthetic polymers, is widely utilized in coatings, adhesives, composite materials, and other fields due to its excellent physical and chemical properties. limitations in its molecular chain structure result in significant deficiencies in heat resistance, mechanical properties, and chemical resistance, constraining its performance in broader applications. modifying the properties of epoxy resin has become a critical research topic.

1. Performance and Applications of Epoxy Resin

Epoxy resin is a high-molecular-weight compound formed by the reaction of epoxide groups with hydroxyl groups. It exhibits exceptional adhesion, mechanical strength, electrical insulation, and corrosion resistance. These superior characteristics enable epoxy resin to perform outstandingly in many high-performance applications.

2. Overview of Modification Methods

The properties of epoxy resin can be enhanced through various modification approaches, including copolymerization, crosslinking, and filler reinforcement.

• Copolymerization: Introducing functional monomers such as polyurethane or siloxane improves heat resistance, oil resistance, and mechanical strength.
• Crosslinking: Increasing the crosslinking density of the epoxy network via chemical or physical means enhances thermal stability and mechanical strength.
• Filler Reinforcement: Adding inorganic (e.g., carbon fiber, graphite) or organic fillers boosts mechanical properties and heat resistance.

3. Copolymerization Modification

Copolymerization is a common method to improve epoxy resin performance. For example, incorporating polyurethane into the epoxy system via copolymerization reactions effectively enhances heat resistance, oil resistance, and mechanical strength. Similarly, siloxane copolymerization introduces siloxane groups to improve temperature resistance and mechanical strength.

4. Crosslinking Modification

Crosslinking modification increases the epoxy network’s crosslinking density through chemical or physical methods. This significantly improves thermal stability and mechanical strength. For instance, free radical polymerization initiated by initiators enables rapid room-temperature curing, while ultraviolet or electron beam irradiation technologies also achieve crosslinking modifications.

5. Filler Reinforcement Modification

Filler reinforcement involves adding inorganic or organic materials to enhance mechanical properties and heat resistance. Inorganic fillers like carbon black or glass fibers provide strong mechanical strength and thermal stability, while organic fillers such as graphite or carbon fibers offer higher temperature resistance and electrical conductivity.

6. Analysis of Modification Effects

Studies on different modification methods reveal varying efficacy. Copolymerization and crosslinking modify epoxy resin at the molecular level, while filler reinforcement improves performance by increasing material density at the macroscale.

7. Challenges and Prospects

Despite progress, challenges remain. Balancing performance enhancement with cost control and ensuring quality management in mass production are key issues. Looking ahead, advancements in new materials and technologies will drive more efficient and environmentally friendly modifications of epoxy resin.

As a vital high-performance material, epoxy resin’s property modification holds significant research value. By integrating copolymerization, crosslinking, and filler reinforcement, epoxy resin’s performance can be substantially improved to meet diverse application demands. With technological progress and novel material development, future epoxy resins are expected to deliver even greater performance, contributing more meaningfully to human society.