1、Ma'anshan Epoxy Elastic Curing Agent
Ma'anshan, one of China’s major industrial hubs, plays a pivotal role in the recycling of epoxy curing agents. This article explores the current status, challenges, and strategies for epoxy curing agent recycling in Ma'anshan.
2、Mild chemical recycling of anhydride
Herein, we report a mild, efficient and scalable chemical degradation strategy for ACERs, followed by direct high-value utilization of degradation solution (DS) in furan resin synthesis without complex separation processes.
3、Mechanochemical Recycling of Acid Anhydride
Epoxy resin (EP) is a widely used thermosetting resin. However, its cross-linked structure poses a big challenge for recycling into value-added products. This study advanced the recycling of acid anhydride-cured epoxy using solid-state shear milling (S3M) technology.
4、Suqian's Recycling of Epoxy Curing Agents
Despite many studies focusing on recovering fibers fromcomposites, few studies have focused on recycling the resin itself.In this study, we developed a new approach for recycling the decomposedamine-cured epoxy resin as an amine curing agent.
Recycling of ammonia
In this study, various types of epoxy resins which consist of bisphenol F-type epoxy resin and typical amine curing agent are prepared and decomposed using nitric acid.
Recent progress in degradation and recycling of epoxy resin
Amine curing agent is the most common type of epoxy resin curing agents and approximately 71% of all epoxy resins are cured by amine curing agents. Therefore, it is crucial to study the degradation of amine-cured epoxy resins.
Mechanochemical Recycling of Acid Anhydride
Fig. S7. Mechanical properties of REP/EP composites: (a) stress−strain curves, (b) Tensile strength of REP-20 powder is added to MHHPA-cured epoxy resin at 5% addition, (c) Flexural strength of REP-20 was added to MHHPA-cured epoxy resin in varying amounts, (d) REP powder is added to 593-cured epoxy resin at 5% addition,
Efficient recycling of anhydride
Systematic investigation of synthesis processes for novel epoxy resins by adjusting the recycled resin content. The accumulation of resin-based electrical waste poses significant resource wastage and environmental challenges, with chemical recycling representing a key solution.
Ma'anshan Epoxy Topcoat Curing Agent
1、Ma'anshan Cured Agent Epoxy Flooring Ma'anshan, one of China’s major industrial hubs, plays a pivotal role in the recycling of epoxy curing agents. This article explores the current status, challenges, and strategies for epoxy curing agent recycling in Ma'anshan.
Exploration and Application of Anshan Epoxy Resin Curing Agents
Committed to high quality and affordability, this organization offers a wide range of products including TGIC and HAA curing agents for polyester powder coatings, glycoluril crosslinker TMMGU, epoxy curing agents, levelling agents, gloss agents, wrinkle catalysts, and acrylic resins.
In the rapid development of modern industry, epoxy curing agents, as a critical chemical raw material, are widely used across multiple fields. the disposal of discarded epoxy curing agents at the end of their life cycle has become an unavoidable issue. As one of China’s key chemical production bases, Ma'anshan plays a vital role in the recycling and utilization of epoxy curing agents.
Epoxy curing agents primarily consist of epoxy resin and curing agents, which form hard, stable materials through chemical reactions. These materials exhibit excellent adhesion and mechanical strength, making them indispensable in construction, electronics, automotive, and aerospace industries. due to their complex production processes, high costs, and growing environmental awareness, rationally managing waste epoxy curing agents to minimize environmental impact has emerged as a significant challenge.
The recycling of epoxy curing agents in Ma'anshan not only promotes resource reutilization and reduces pollution but also generates economic benefits for enterprises. The recycling process involves three main steps: physical separation, chemical treatment, and resource utilization.
First, during the physical separation stage, methods such as gravity sorting and magnetic separation are used to divide solid particles from liquids in waste residues, facilitating subsequent processing. Although straightforward, this step is fundamental to ensuring accuracy and efficiency in later stages.
Next, chemical treatment—the core of the recycling process—neutralizes or transforms harmful substances in waste liquids into harmless ones. Common approaches include neutralization, precipitation, and extraction. For instance, heavy metal ions in waste liquids can be converted into water-insoluble compounds via precipitation and then filtered out.
Finally, resource utilization reinvents processed waste liquids or solids into useful products. This often involves complex chemical reactions, such as synthesizing new resins, coatings, or adhesives. Through such methods, waste epoxy curing agents are repurposed, achieving circular resource utilization.
Ma'anshan has made notable progress in epoxy curing agent recycling by establishing specialized treatment centers and adopting advanced technologies. These centers also ensure quality control and classification of recycled materials, guaranteeing their safety and reliability.
Despite achievements, challenges remain. Waste liquids may contain diverse chemicals, requiring multi-stage treatment to eliminate all pollutants. Additionally, rising demands for product variety and performance necessitate higher technical standards for resource utilization.
To address these issues, local enterprises and research institutions are exploring more efficient and eco-friendly solutions. Examples include developing new catalysts to enhance reaction efficiency, creating low-cost separation and purification technologies, and converting waste liquids directly into high-value chemicals.
Looking ahead, Ma'anshan has vast potential to advance epoxy curing agent recycling. Through technological innovation and optimized management, comprehensive recycling could significantly contribute to environmental protection and resource conservation. This effort would mark a transformational upgrade for traditional chemical industries and a robust endorsement of ecological civilization.
