1、From renewable biomass to bio

Synthetic strategies of biobased epoxy resin through the chemical modification are summarized.

2、Effect of the Structure of Epoxy Monomers and Curing Agents: Toward

Herein, a liquid crystalline epoxy (LCE) monomer with a biphenyl mesogenic unit was first synthesized through an efficient one-step reaction.

3、Synthesis and Modifications of Epoxy Resins and Their

This article is designed to review the developments in synthesis, modifications, and properties of epoxy monomers derived from both petroleum and renewable resources.

4、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.

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.

Modification Processes of Epoxy Resins

Graft modification introduces new functional groups or monomers into epoxy molecular chains via chemical reactions. This approach enables the development of specialized epoxies, such as conductive or photosensitive resins.

Chemically Recyclable Carbon Fiber Reinforced Polymer Composites with

Epoxy resins represent a cornerstone of high-performance materials due to their outstanding thermal and mechanical properties. However, the irreversible covalently crosslinked architecture of conventional epoxy thermosets poses significant challenges for chemical recycling and circular utilization. Herein, acid-activatable rigid spiro diacetal and acetal are incorporated into one epoxy monomer ...

Advanced chemical modification technology of inorganic oxide

In this comprehensive review, we explored advanced chemical modification techniques tailored for IONs incorporated into EP, providing a detailed examination of the mechanical characteristics of surface cm-ION/EP nanocomposites.

Synthesis and Modifications of Epoxy Resins and Their

This article is designed to review the developments in synthesis, modifications, and properties of epoxy monomers derived from both petroleum and renewable resources.

Improving Epoxy Resin Performance Using PPG and MDI by One

In this study, a convenient way to toughen epoxy resins was explored, and the monomers PPG and MDI for the synthesis of polyurethane prepolymers were used for a one-step modification of epoxy resins.

Chemical Modification of Epoxy Resin Monomers

Introduction: Epoxy resin, a high-performance thermosetting polymer material, is widely used in coatings, adhesives, composites, electronic encapsulation, and other fields. Due to its excellent mechanical properties, electrical insulation, corrosion resistance, and dimensional stability, epoxy resin has become an indispensable material in modern industry and scientific research. these superior properties are closely linked to its molecular structure. Modifying its molecular structure, particularly through chemical modification, can impart new properties and functions to epoxy resin, meeting specific application requirements. This paper explores the concepts, methods, and applications of chemical modification of epoxy resin monomers, aiming to provide references for further development and utilization of epoxy resin.

1. Concept of Chemical Modification of Epoxy Resin Monomers

Chemical modification refers to the process of altering the molecular structure of epoxy resin monomers through chemical reactions, thereby obtaining new properties or functionalities. This modification typically includes crosslinking reactions, copolymerization, graft reactions, etc. Through chemical modification, the heat resistance, chemical corrosion resistance, mechanical properties, and electrical performance of epoxy resin can be significantly improved, enhancing its application value in specific fields.

2. Methods of Chemical Modification of Epoxy Resin Monomers

1. Crosslinking Reaction

Crosslinking reaction is one of the most fundamental and important methods for modifying epoxy resin. By introducing crosslinking agents such as phenolic resin, triethylenetetramine (TETA), and multifunctional compounds, chemical bonds can be formed between the molecular chains of epoxy resins, increasing their crosslinking density and strength. Crosslinking reactions not only improve the mechanical properties of epoxy resin but also enhance its solvent resistance and chemical resistance. Additionally, crosslinking reactions contribute to better dimensional stability and heat resistance.

2. Copolymerization

Copolymerization involves the simultaneous reaction of two or more different types of monomers during polymerization, generating polymers with specific structures. Through copolymerization, the molecular chain structure and properties of epoxy resin can be regulated, yielding materials with specialized functions. For example, copolymerizing epoxy resin with monomers of different characteristics, such as polyurethane or silane, can produce composites with excellent mechanical properties, high-temperature resistance, and chemical resistance.

3. Grafting Reaction

Grafting reaction refers to the chemical bonding of one or more monomer units onto the macromolecules of epoxy resin, forming block copolymers or branched polymers. Through grafting reactions, functionalized epoxy resins, such as conductive epoxy resin or photoluminescent epoxy resin, can be prepared. These functionalized epoxy resins have broad application prospects in electronics, optics, and energy fields.

4. Other Chemical Modification Methods

In addition to the above methods, other chemical modification techniques can be applied to epoxy resin. For instance, surface treatment technologies such as plasma etching or anodization can improve the surface properties of epoxy resin. Furthermore, the incorporation of nanofillers or organic-inorganic hybridization can be used to enhance performance and expand applications.

3. Applications of Chemical Modification of Epoxy Resin Monomers

1. Electronic Product Encapsulation

Epoxy resin is widely used in the encapsulation of electronic products. Through chemical modification, epoxy resin with high dielectric constant and low dielectric loss can be prepared for the encapsulation of high-frequency and high-speed circuits. Additionally, epoxy resin with excellent electrical properties and mechanical strength can be used for the encapsulation and protection of integrated circuits.

2. Aerospace Field

In the aerospace field, epoxy resin is extensively used as a structural material and adhesive. Through chemical modification, epoxy resin with high strength, high rigidity, and high heat resistance can be prepared for manufacturing critical components such as aircraft fuselages and engine parts. epoxy resin with good corrosion resistance and wear resistance can be used for anticorrosion coatings of aircraft.

3. Biomedical Field

In the biomedical field, epoxy resin is widely used as a biocompatible material in tissue engineering and drug delivery systems. Through chemical modification, epoxy resin with good biocompatibility and bioactivity can be prepared for cell culture substrates and drug carriers. Additionally, epoxy resin with excellent antibacterial properties can be used for sterilization and corrosion prevention of medical devices.

4. New Energy Field

In the new energy field, epoxy resin is widely used as an electrode material and electrolyte material in fuel cells and solar cells. Through chemical modification, epoxy resin with high conductivity and a wide electrochemical window can be prepared for electrode materials. Additionally, epoxy resin with good stability and cycle performance can be used in the research and application of battery electrolytes.

Chemical modification of epoxy resin monomers is a technology with vast application prospects. Through crosslinking reactions, copolymerization, graft reactions, and other chemical modification methods, the performance and functionality of epoxy resin can be significantly enhanced, meeting the demands of various fields. In the future, with the development of new material science and technology, chemical modification of epoxy resin monomers will achieve more breakthroughs, contributing greater progress to human society.