1、Volatilization Time of Epoxy Resin Curing Agents

The curing kinetics of liquid epoxy resin (E-51) in the presence of curing agent was studied by differential scanning calorimetry (DSC), and the curing process of cured film was observed by light microscope.

2、The epoxy resin system: function and role of curing agents

In the presence of curing agents, epoxy resins become rigid and infusible. Eco-friendliness and mechanical functionality have emerged as vulcanization properties.

3、Heterogeneous dynamics in the curing process of epoxy resins

In this study, the microscopic dynamics in the curing process of a catalytic epoxy resin were investigated under diferent temperature conditions utilizing X-ray photon correlation spectroscopy.

4、Curing

In this work, the effects on the curing-dependent modulus and the internal stress development of the epoxy/crosslinker chemistry, curing temperature, relative humidity, filler conditions, and initial solvent concentration, are studied.

5、Curing Agent: Types & Process of Curing Agents for Epoxy Resin

Explore the main types of curing agents & various crosslinking methods which help to improve the polymerization process to select the right curing agent for coating formulation.

Epoxy Resins, Curing Agents, Compounds, and Modifiers: An Industrial Guide

It will be of value to technical and managerial personnel involved in the manufacture and use of the final products made from these various resins and curing agents. Epoxy resins have experienced tremendous growth since their introduction in the 1950s.

Theoretical studies of mechanisms of epoxy curing systems

epoxy resin, a particular curing agent and/or a particular catalyst. The examination of all possible reaction pathways for each curing system can allow us to predict the most preferable pathway in the system and can enable the development of a more accurate kinetic model for the system.

Impact of Solvent Evaporation and Curing Protocol on Degree of

This study evaluated the effect of air-drying time and light-curing time on the degree of conversion (DC) of three etch-and-rinse adhesive systems: ONE-STEP (OS) and ONE-STEP plus (OSP), Ambar (AMB), and two multimode adhesive systems: All-Bond ...

环氧树脂固化剂的常见类型及其固化机理

Teams generally move faster when they screen transfer, flow, drying or curing, and substrate hold together instead of changing one raw material at a time without a clear decision frame.

Epoxy Curing Agents: A Comprehensive Understanding of Their

Explore the basic knowledge of epoxy curing agents, including their classification, working principle, wide application in construction, electronics, automotive and other industries, as well as market trends and the latest developments of environmentally friendly products.

In modern industrial production and construction, epoxy resin is widely used as a critical material in various products and components. The curing process of epoxy resin is a key step in its application, and curing agents play a vital role in promoting this process. curing agents can emit harmful substances during use, posing risks to human health and the environment. Studying the volatilization characteristics of epoxy curing agents and their environmental and health impacts is therefore of significant importance.

The primary function of epoxy curing agents is to undergo cross-linking reactions with active groups in the epoxy resin, forming a robust and stable structure. During this process, curing agents must fully react with the epoxy resin to achieve the desired curing effect. the volatilization of harmful substances from curing agents raises concerns for both human health and environmental safety.

First, organic solvents constitute a major category of volatile pollutants. Solvents such as toluene and xylene are highly volatile at room temperature, flammable, and explosive, posing threats to human health and environmental safety. Prolonged exposure to low concentrations of these solvents can cause dizziness, nausea, vomiting, and potentially lead to chronic poisoning. Additionally, organic solvents degrade air quality and contribute to atmospheric pollution.

Second, heavy metal ions in curing agents, such as lead, mercury, and cadmium, are another critical source of volatile pollutants. These metals can volatilize at high temperatures and enter the human body through respiratory pathways, causing harm. Long-term exposure to high concentrations of heavy metals may result in neurological damage, kidney dysfunction, reproductive system disorders, and other diseases.

Beyond organic solvents and heavy metals, curing agents may also contain other volatile organic compounds (VOCs). VOCs are colorless, odorless, and easily volatile gases that negatively impact human health and the environment. Chronic exposure to low-concentration VOCs can induce headaches, dizziness, nausea, and vomiting, while severe cases may lead to chronic poisoning. VOCs also exacerbate air pollution and reduce air quality.

To mitigate the environmental and health impacts of harmful substances emitted by curing agents, the following measures can be adopted:

1. Select low-toxicity or non-toxic curing agents. Environmentally friendly alternatives, such as waterborne epoxy curing agents and acrylic epoxy curing agents, exhibit lower volatility and reduced harm to humans and ecosystems.

2. Enhance process control. During production, strictly regulate the dosage and application methods of curing agents to avoid excessive use and excessive emissions. Regular maintenance of equipment is also critical to prevent leaks caused by malfunctions.

3. Improve exhaust gas treatment. For highly volatile curing agents, employ advanced technologies like activated carbon adsorption and photocatalytic oxidation to neutralize harmful substances in exhaust gases.

4. Strengthen monitoring and evaluation. Regularly assess air quality in production areas to evaluate the impact of volatile substances. Adjust production processes and equipment based on monitoring results to ensure safety and environmental protection.

epoxy curing agents release harmful substances during use, affecting both human health and the environment. By adopting strategies such as selecting low-toxicity curing agents, enhancing process control, improving exhaust treatment, and strengthening monitoring, the adverse impacts of volatile substances can be significantly reduced. Implementing these measures promotes green production and sustainable development goals.