1、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.
2、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.
3、Zhangzhou's Recycling of Epoxy Curing Agents
As a specialized epoxy curing agent recycling manufacturer based in Huzhou, we not only focus on the efficient application of epoxy curing agents but also prioritize maximizing their recovery and reuse, thereby contributing to environmental protection.
Recycling of ammonia
In this paper, DMM is used as a swelling agent to assist nitric acid degradation of ammonia cured curing epoxy resin, and we hope to find an effective way to eliminate the contamination of epoxy resin.
Suqian's Recycling of Epoxy Curing Agents
As a specialized epoxy curing agent recycling manufacturer based in Huzhou, we not only focus on the efficient application of epoxy curing agents but also prioritize maximizing their recovery and reuse, thereby contributing to environmental protection.
Towards Sustainable Recycling of Epoxy
To cover the resource demand of the composite industry and to reduce the environmental impact of accumulated epoxy waste, there is an urgent need for the development of sustainable recycling methods.
A critical review of dynamic bonds containing curing agents for epoxy
Investigated the mechanical, thermomechanical, thermal, and recycling properties of the epoxy thermosets cured by developed curing agents. Addressed the challenges, opportunities and emerging trends in the field.
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,
Zhuji's Recycling Initiative for Epoxy Curing Agents
First, Zibo has introduced a series of policies to encourage the recycling of epoxy curing agents, including tax incentives and financial support, providing strong policy assurance for recycling enterprises.
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.
In today's era of escalating resource constraints, environmental protection has become a global focus. With the acceleration of industrialization, epoxy curing agents—a critical component in coatings, adhesives, and other products—are being used in increasing quantities. as these products are discarded, vast amounts of epoxy curing agents are released into the environment, causing severe pollution. effectively recycling and reutilizing scrap epoxy curing agents has emerged as an urgent issue to address.
Epoxy curing agents are widely used chemical raw materials, employed extensively in the production of coatings, adhesives, and other industrial products. They undergo cross-linking reactions with various resins to form robust adhesive layers, ensuring product performance and quality. Among the many types of epoxy curing agents, epoxy resins are among the most common. Epoxy resins boast exceptional adhesion, mechanical strength, and chemical resistance, making them popular across numerous industries.
the use of epoxy curing agents comes at a cost. Their production involves significant organic solvents, generating substantial waste gases, liquids, and solids. These byproducts not only pollute the environment but also pose health risks to humans. Additionally, discarding epoxy curing agents leads to resource wastage. Given the high cost of raw materials like epoxy resins, disposal represents a lost opportunity for recycling.
To address these challenges, research institutions and enterprises worldwide have recently intensified efforts to explore technologies for recycling and reusing epoxy curing agents. For instance, some companies have improved manufacturing processes to reduce solvent usage, thereby minimizing waste. Others have developed innovative recycling methods to transform scrap epoxy curing agents into useful materials.
Progress has been made in recycling and reusing epoxy curing agents. Chemical methods can extract components like epoxy resins from waste, while treated scrap materials can be repurposed for producing other coatings or adhesives. These advances not only mitigate environmental impacts but also enable circular resource utilization.
Despite these strides, challenges remain. Recycling processes may produce byproducts such as unreacted monomers or residual catalysts, which are difficult to manage. Variations between different epoxy curing agent types complicate effective separation and treatment. recycled materials often require further processing or modification to suit new applications.
Despite the hurdles, recycling epoxy curing agents holds significant potential. Technological innovations and optimized management could enhance recovery rates, reducing pollution and resource waste. This aligns with green chemistry and sustainable development principles, contributing to global sustainability goals.
Looking ahead, advancements in technology and growing environmental awareness will likely drive wider adoption of epoxy curing agent recycling. It is reasonable to envision a future where epoxy curing agents are produced and used in more eco-friendly and efficient ways. This shift would represent not only an environmental triumph but also a collective commitment to responsible stewardship of resources for humanity’s long-term prosperity.
