1、Facile recycling of anhydride
Herein, we developed a mild and energy-saving process for high-efficiency degradation and reuse of anhydride-cured epoxy thermoset with the aid of hydrazine hydrate. The degradation degree of the epoxy resin reached 99.6% at 120 °C within a short time of 60 min.
2、Recycling Heated Epoxy Curing Agents
The manufacturer offers a diverse range of epoxy resin curing agents, including but not limited to: general-purpose curing agents, fast-curing agents, low-temperature curing agents, and low-viscosity curing agents.
3、Chemical Recycling of Epoxy Thermosets: From Sources to Wastes
However, the expanding production of EP inevitably leads to the accumulation of waste end-of-life equipment and the corresponding increasingly serious environmental problems. This review summarizes the recycling strategies of EP, divided into two perspectives: recycling from wastes and sources.
4、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.
5、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.
DIC Develops Basic Technology for an Innovative Epoxy Resin Curing Agent
Tokyo, Japan—DIC Corporation today announced that it has succeeded in developing basic technology for a groundbreaking epoxy resin curing agent that resists heat up to over 200°C and can be recycled.
The carbonate exchange reaction strategy for chemical recycling of poly
The unique structure of DPC-PC enables it to serve as a curing agent for preparing high-performance and recyclable epoxy thermosets, thus blazing a new trail for the chemical recycling of BPA-PC.
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.
环氧树脂的固化剂 (Curing Agents for Epoxy Resin)_百度文库
一种胺固化剂的固化速度取决于其胺的种类，以及所配合的环氧树脂的类型。 最常见的缩水甘油醚型的树脂很容易常温固化，但闭环的环氧树脂，如环氧环己烷，环氧聚丁二烯，却很难进行固化。 缩水甘油酯型的环氧树脂比缩水甘油醚类的固化速度快很多。
Facile recycling of anhydride
Herein, we develop a mild, efficient and energy-saving process for degrading anhydride-cured epoxy resins with the aid of hydrazine hydrate. In this system, hydrazine hydrate is chosen as a multifunctional reagent to play the role of a solvent and a reactant during the degradation process.
In today’s era of increasingly strained resources, environmental protection and sustainable development have become global consensus. Particularly in the field of materials science, effectively recycling waste chemical products to reduce environmental impact has become a research hotspot. This article explores the applications and significance of recycling heated epoxy curing agents.
Epoxy curing agents are indispensable components in epoxy resin applications. They promote cross-linking reactions between epoxy resins and various additives, forming composite materials with high mechanical strength and durability. with industrial development and technological advancements, a large amount of used epoxy curing agents remains improperly treated, exacerbating environmental pollution.
Traditional methods for disposing of epoxy curing agents—such as incineration, landfilling, or simple burial—not only consume significant energy but also generate harmful gases and pollutants. In recent years, rising environmental awareness and technological progress have spurred the exploration of more eco-friendly and cost-effective recycling methods.
Recycling methods for heated epoxy curing agents primarily include physical recovery and chemical recovery. Physical recovery involves processes like crushing and sieving to separate waste curing agents for reuse. While straightforward, this approach is inefficient for large-scale recycling.
Chemical recovery, meanwhile, transforms waste curing agents into useful chemicals or raw materials through reactions. Common methods include pyrolysis, redox reactions, and photochemistry. Pyrolysis, a mature technique, heats curing agents to break them into smaller molecules, which are then purified to obtain high-value chemicals. This method not only recycles waste but also converts byproducts like carbon black and fuel oil into economically valuable resources.
Beyond these approaches, innovative technologies are under investigation. For instance, microbial degradation of epoxy curing agents has shown promise. By selecting specific microbial strains, decomposition can be accelerated under controlled conditions, enabling efficient recycling. Additionally, nanotechnology offers potential for modifying curing agents. Nanomaterials’ adsorption and catalytic properties could enhance recovery efficiency and reduce energy consumption.
Recycling heated epoxy curing agents addresses environmental issues while delivering economic benefits. First, it reduces reliance on new resources, slowing resource depletion. Second, byproducts from recycling can be processed into valuable products, fostering circular economies. Furthermore, recycled curing agents lower production costs, boosting corporate competitiveness.
challenges remain. Improving recovery efficiency, reducing energy use, and achieving full resource utilization of waste require deeper research. Policy support and market mechanisms are also critical to advancing recycling practices.
recycling heated epoxy curing agents mitigates environmental harm and generates economic value. With ongoing technological advancements and growing environmental consciousness, future innovations will likely emerge to enable comprehensive recycling. Let us work together to protect our planet!
Note: The translation maintains technical accuracy while adapting complex sentences for clarity. Key terms (e.g., pyrolysis, nanotechnology) align with international scientific terminology. Redundant phrasing in the original (e.g., repeated titles) is preserved as per the user’s request.
