1、Biological Effects and Toxicity of Compounds Based on Cured Epoxy Resins

Abstract: The aim of this work was to investigate selected biological and toxicity properties of cured epoxy resin-based compounds based on a bisphenol A epoxy resin, cold-cured by a...

2、Broch. EPOXY Engels

Liquid epoxy resins and some reactive diluents are not readily biodegradable; although the epoxy functional groups are hydrolysed in contact with water, they have the potential to bioaccumulate and are moderately toxic to aquatic organisms.

3、Ranking the Toxicity of Epoxy Curing Agents

The ranking of epoxy curing agents' toxicity is a complex and nuanced topic, as it involves multiple factors including chemical structure, application environments, exposure duration, concentration levels, and individual susceptibility.

4、Toxic and Safety Exploration of Epoxy Adhesive Curing Agents

Even though existing DANs containing curing agent-cured epoxy resins usually possess low glass transition temperatures, they need toxic metallic accelerating agents, preventing their use for advanced applications and medical, healthcare, and kid's items.

5、From renewable biomass to bio

In addition, commonly used curing agents, such as isofolketone diamine (IPDA) and other amines, as well as anhydrides, are toxic before curing [16]. Based on the above consideration of environment and health, it is a hot topic to look for renewable resources from nature to design safer epoxy resins.

Biological Effects and Toxicity of Compounds Based on Cured Epoxy Resins

The aim of this work was to investigate selected biological and toxicity properties of cured epoxy resin-based compounds based on a bisphenol A epoxy resin, cold-cured by a polyamide and containing two types of metal powders (aluminum and copper).

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.

The Toxicity of Epoxy Curing Agents

The toxicity of epoxy curing agents is a complex socio-environmental issue, intersecting environmental protection, public health, and industrial safety. Addressing this challenge demands collaborative efforts from governments, industries, and the public to implement comprehensive strategies.

Biological Effects and Toxicity of Compounds Based on

The aim of this work was to investigate selected biological and toxicity properties of cured epoxy resin-based compounds based on a bisphenol A epoxy resin, cold-cured by a polyamide and containing two types of metal powders (aluminum and copper).

A phosphorus/silicon hybrid curing agent for epoxy resin

This study develop a phosphorus‑silicon hybrid curing agent (DA) with rational structural design that synergistically enhances the flame retardancy, thermal stability, and toughness of epoxy resins.

In modern industrial and construction fields, epoxy materials are widely used due to their excellent adhesive properties, chemical resistance, and mechanical strength. the safety of epoxy curing agents—a critical additive—has long been a concern. This article delves into the toxicity of epoxy curing agents, analyzes their potential health impacts, and discusses measures to ensure their safe use.

1. Composition and Function of Epoxy Curing Agents

Epoxy curing agents are substances that promote chemical reactions in epoxy resins, enabling them to cure into hard, stable materials. Common curing agents include polyamines, anhydrides, and aromatic sulfonates. While these agents facilitate the curing process, they also impart superior physical and chemical properties to the epoxy materials.

2. Manifestations of Toxicity in Epoxy Curing Agents

The toxicity of epoxy curing agents primarily arises from their chemical composition. Some contain volatile and flammable toxic organic compounds, such as benzene, toluene, and xylene, which can harm human health through prolonged exposure or inhalation. Additionally, certain curing agents contain heavy metal ions like lead, cadmium, and chromium, which may cause chronic poisoning with long-term contact.

3. Potential Health Impacts of Epoxy Curing Agents

1. Respiratory System Effects: Volatile organic compounds (VOCs) in curing agents can irritate the respiratory tract and induce inflammation. Chronic exposure may lead to conditions like chronic bronchitis and reduced lung function.
2. Nervous System Effects: Ingredients such as benzene have been proven to damage the central nervous system, causing symptoms like dizziness, headaches, and reduced memory.
3. Skin and Mucous Membrane Irritation: Chemicals in curing agents may trigger allergic reactions, including rashes and itching.
4. Endocrine Disruption: Some organic compounds in curing agents may interfere with the endocrine system, leading to reproductive abnormalities and hormonal imbalances.

4. Safety Measures for Epoxy Curing Agents

1. Select Eco-Friendly Curing Agents: Industries should prioritize low-toxicity or non-toxic curing agents to minimize environmental and health risks.
2. Strict Usage Control: Follow product guidelines for proportioning and application, avoid overuse, and regulate curing temperatures and durations to prevent excessive exposure.
3. Enhance Personal Protection: Workers should wear protective equipment like gas masks and gloves to reduce direct contact. Regular health check-ups are essential for individuals exposed to curing agents.
4. Establish Safety Management Systems: Enterprises must implement rigorous protocols for the storage, transportation, and usage of curing agents. Employee training on risk awareness and emergency response is also critical.

Despite their indispensable role in industry and construction, the toxicity of epoxy curing agents cannot be ignored. To safeguard human health and environmental safety, it is imperative to source high-quality, eco-friendly curing agents and adopt robust safety practices. Only through such measures can we achieve sustainable development of epoxy materials and create a safer, healthier future for all.