1、Effect of thermosetting resin coating modification on the properties of

The thermosetting resin produces a cross-linking curing effect with the curing agent when heated, and a tightly bonded membrane is formed on the surface of the irregularly shaped Si 3 N 4 particles, which is the thermosetting resin coating layer.

2、Modification of Thermosetting Resins

Currently, the modification of thermosetting resin is primarily focused on three areas, namely toughening modification, heat resistance modification, and flame retardant modification.

3、Recent advances of thermosetting resin and its application prospect in

Currently, the modification of thermosetting resin is primarily focused on three areas, namely toughening modification, heat resistance modification, and flame retardant modification.

Modification of thermosetting resins and composites through preformed

This technical review of preformed particle modification of thermosetting resins and composite systems summarizes the utilization of these materials and their performance.

材料科学与工程学院卞军教授团队在高性能新型热固性高分子

该Review全面概述了聚苯并噁嗪（PBZ）的国内外最新研究进展，评述了其合成、制备、分子模拟方法和多功能应用潜力。 对目前关于PBZ的科学研究和工程应用中面临的瓶颈问题进行了深入分析，并提出了有效解决方法，最后对PBZ的研究与开发未来的发展前景进行了展望。

Modification of Thermosetting Resins by Thermoplastics

Two systems are considered: a styrenated polyester resin containing added poly (vinyl acetate) (PVA), and epoxy resins containing poly (ethersulphone) (PES). A combination of scanning electron microscopy (SEM) and differential etching procedures was employed to examine...

热固性树脂过渡层对聚醚砜树脂基碳纤维复合材料界面性能的

In previous studies, it discovered that thermosetting cyanate ester (CE) resin had advantages such as good melt flowability, a curing temperature close to that of PES resin, and some...

环氧树脂的合成、改性及应用研究进展

This article reviews the research progress on the synthesis methods and modification technologies of epoxy resin both domestically and internationally, in order to improve its comprehensive performance and application scope.

Research progress on modification of phenolic resin

With the widening of the application fields of phenolic resins, many types of modifiers have been used to modify the molecular structure of phenolic resins.

Modification of thermosetting resins and composites through

Modification of thermosetting resins and composites through preformed polymer particles: A review 预成型聚合物粒子对热固性树脂及复合材料的改性研究进展

Techniques for Modifying Thermosetting Resins

Introduction

Thermosetting resins are materials that undergo a cross-linking reaction during heating, forming a solidified structure. With the advancement of modern industry, the demand for material performance has escalated, and traditional thermosetting resins no longer meet the requirements of certain specialized fields. This necessitates modifications to enhance their properties. This article introduces the concept, methods, and applications of thermosetting resin modification.

Definition and Classification of Thermosetting Resin Modification

Definition

Thermosetting resin modification refers to the process of improving the inherent properties of the resin by adding specific additives or altering its preparation processes to meet particular application demands.

Classification

1. Chemical Modification: Involves introducing different monomers, prepolymers, or functional groups to alter the chemical structure of the resin, such as incorporating silanes, amino groups, or epoxy groups.
2. Physical Modification: Involves changing the resin’s morphology, size, or surface properties through methods like melt spinning, blending, filling, or surface treatment.
3. Functionalized Modification: Involves adding functional fillers or monomers to impart special properties to the resin, such as conductivity, magnetism, or self-healing capabilities.

Methods of Thermosetting Resin Modification

1. Chemical Modification

• Introduction of Monomers and Prepolymers: Adding various monomers or prepolymers can alter the resin’s molecular weight, glass transition temperature (Tg), and thermal stability.
• Introduction of Functional Groups: Chemical reactions to incorporate groups like hydroxyl, carboxyl, or amino groups can enhance hydrophilicity, acid/alkali resistance, and mechanical strength.
• Use of Cross-Linking Agents: Selecting appropriate cross-linking agents increases cross-linking density, improving heat resistance, mechanical strength, and chemical resistance.

2. Physical Modification

• Melt Spinning: High-temperature melting of polymer solutions into fine filaments, followed by cooling and solidification, produces composites with uniform fiber structures.
• Blending Modification: Combining different resins or fillers leverages the advantages of each component, enhancing overall mechanical properties and heat resistance.
• Filling Modification: Adding fillers like carbon fibers, glass fibers, or nanoparticles improves strength, hardness, and wear resistance.

3. Functionalized Modification

• Conductive Filler Integration: Adding carbon black, graphite, or other conductive fillers boosts electrical conductivity, suitable for electronic encapsulation.
• Magnetic Material Integration: Incorporating ferrites, magnetite, or other magnetic materials imparts magnetic properties for use in recording and sensing.
• Self-Healing Material Preparation: Designing resin systems with photoinitiators or catalysts enables self-repair functions under light or temperature changes.

Applications of Thermosetting Resin Modification

1. Electronics and Electrical Engineering

• Electromagnetic Shielding Materials: Adding metal particles or oxides enhances electromagnetic shielding for devices like phones and computers.
• High-Performance Circuit Boards: Modified thermosetting resins serve as substrates for circuit boards with high insulation, low dielectric constant, and low loss.

2. Aerospace Industry

• High-Temperature Resistant Materials: Filling with alumina, zirconia, or other high-temperature materials creates composites for aviation engines and rockets.
• Lightweight, High-Strength Structures: Physically and functionally modified composites offer high strength, modulus, and low density for aircraft fuselages and satellite components.

3. Automotive Manufacturing

• Lightweight Materials: Melt spinning and blending produce high-strength, high-stiffness, low-density composites for vehicle bodies and chassis.
• Abrasion- and Corrosion-Resistant Materials: Nanoparticles or anticorrosion additives create durable parts for automotive and engine components.

Thermosetting resin modification technology is a critical branch of modern materials science. By modifying resins through various methods, their performance can be significantly enhanced to meet specialized application needs. As new materials continue to emerge, these modification techniques will find even broader applications across industries, contributing further to human advancement.