1、A phosphorus/silicon hybrid curing agent for epoxy resin

Through ingenious structural design, this study develops a high-performance curing agent to simultaneously enhance the flame retardancy, thermal stability, and mechanical properties of epoxy resins.

2、The Impact of Various Curing Agents on Bio

In this study, our research group targeted to improve the competence of bio-based epoxy resins for diverse applications by investigating the effect of multiple curing agents including DETDA, Citric Acid (CA), and Tannic Acid (CA), on their characteristics.

3、Bis‐Imidazole Derivative as Latent Curing Agent for One‐Component Epoxy

The PBMM/E-51 system demonstrated optimal curing performance at a mass ratio of 15:100 (curing agent to resin), as determined via dynamic gel time analysis. Differential scanning calorimetry (DSC) was employed to reveal the curing parameters.

4、Synthesis of an Epoxy Toughening Curing Agent through

Utilizing this property, a novel approach for the treatment of PTA sludge waste was developed for its modification and re-use. This study focuses on the preparation of epoxy curing agents using PTA sludge-tank material.

5、Influence of different composite curing agents on the rapid curing

In particular, effective formulations are designed for mixing fast and slow curing agents, studying their effects on the curing behavior, curing quality, and mechanical properties of...

A latent curing agent for rapid curing of phenolic epoxy resin

Developing effective latent curing agent for rapid curing of epoxy resins at low temperatures remains challenging. This study reports a latent curing agent, ortho-cresol phenolic epoxy resin-bisphenol A (EOCN-BPA), prepared through the addition reaction of o-methyl phenolic epoxy resin with BPA.

Investigation of curing systems in modified epoxy anticorrosion

This study elucidated the mechanism by which the molecular structure of the curing agent influenced the anti-corrosion performance of epoxy coatings, further improving the research method for studying the constitutive effects of the curing agent system in simulation work on anti-corrosive coatings, and providing effective guidance for screening ...

Preparation and properties of stretchable low temperature resistant

Two innovative molecular design strategies for epoxy curing agents to address the inherent brittleness and cryogenic limitations of conventional epoxy systems are introduced.

Effect of Curing Agent Type on Curing Reaction Kinetics of Epoxy Resin

In this paper, low molecular weight polyamides, aromatic amines and anhydrides were selected as three kinds of curing agents and their isothermal viscosity-time properties were studied to...

Bio

Improving the toughness of epoxy resin (EP) while maintaining its strength is still considered a huge challenge. Herein, a novel bio-based curing agent, PA–DAD, has successfully been developed for EP that provides both mechanical reinforcement and flame retardancy.

In modern industry and construction, epoxy materials are widely used due to their exceptional properties. Epoxies are renowned for their superior mechanical strength, chemical stability, and electrical insulation, making them ideal for manufacturing high-performance composites. the complex preparation process and high cost of epoxy materials limit their application in certain fields. developing an economically efficient alternative with performance comparable to traditional epoxies has become critically important. In recent years, pseudo-epoxy curing agents, as emerging substitutes for epoxies, have gradually gained attention.

Pseudo-epoxy curing agents mimic the curing reactions of traditional epoxies by introducing specific chemicals to simulate the cross-linking and curing process. Compared to conventional epoxies, they offer advantages such as lower costs and simpler preparation while retaining the fundamental properties of epoxy materials. challenges remain in practical applications, including longer curing times and slightly inferior mechanical properties compared to traditional epoxies.

Theoretical Basis of Pseudo-Epoxy Curing Agents

The working principle of pseudo-epoxy curing agents relies on chemical reactions. During curing, double bonds in their molecular chains undergo cross-linking to form a three-dimensional network structure, endowing the material with excellent mechanical properties and chemical resistance. Compared to traditional epoxies, pseudo-epoxy curing agents have lower cross-linking densities, resulting in somewhat weaker mechanical performance. Nonetheless, they can meet most engineering requirements, particularly in cost-sensitive applications.

Preparation Methods for Pseudo-Epoxy Curing Agents

The main steps in preparing pseudo-epoxy curing agents include: selecting an appropriate resin matrix, incorporating cross-linking agents, adding initiators, and adjusting formulations to achieve desired properties. For example, epoxy resins can be blended with polyamides or polyesters via melt blending to produce pseudo-epoxy curing agents with varying properties. Additionally, additives can be introduced to regulate curing times and mechanical performance.

Applications of Pseudo-Epoxy Curing Agents

Pseudo-epoxy curing agents demonstrate unique advantages across multiple domains. In aerospace, their lightweight and high-strength characteristics make them suitable for manufacturing aircraft structures and components. In the automotive industry, they are used to fabricate high-strength body panels and chassis parts. Furthermore, pseudo-epoxy curing agents find applications in sports equipment, medical devices, and building reinforcement materials.

Challenges and Prospects

Despite their benefits, pseudo-epoxy curing agents face several challenges in practice. First, their extended curing times may impact production efficiency. Second, their slightly weaker mechanical properties compared to traditional epoxies necessitate additional protective measures under extreme conditions. To address these issues, researchers are exploring novel cross-linking agents and initiators to shorten curing times.

Looking ahead, advancements in new material technologies are expected to introduce innovative solutions. Pseudo-epoxy curing agents could potentially integrate with other advanced materials, such as nanomaterials and bio-based composites, to achieve higher performance and lower costs. This would provide new possibilities for optimizing and replacing traditional epoxies, driving progress in materials science.

pseudo-epoxy curing agents, as cost-effective alternatives to epoxies, hold broad application prospects in modern industry and construction. While their mechanical properties currently lag behind traditional epoxies, ongoing research and technological progress promise expanded roles for pseudo-epoxy curing agents in more fields, contributing significantly to human development.