1、Systematic study of the effect of silane coupling agent on the

Molecular dynamics simulations are used to elucidate the mechanism by which silane coupling agents (SCAs) affect the hydrothermal aging resistance of the epoxy resin (EP)/silica interface, which is the main type of interface existed in/around the underfill adhesive (UF).

2、Effects of different coupling agents on the heat and oxidative aging

Composite insulators are widely used in power transmission systems because of their excellent mechanical and electrical properties. However, composite insulator.

3、Systematic study of the effect of silane coupling agent on the

Systematic study of the effect of silane coupling agent on the hydrothermal aging resistance of the underfill epoxy resin and silica interface via molecular dynamics simulation

The influences of silane coupling agents on the heat and moisture

Heat and dampness are crucial factors causing the deterioration of electrical equipment. A hot, humid environment causes moisture to penetrate the composite interface into the electrical equipment.

STRUCTURAL GRADIENT IN THE SILANE COUPLING AGENT LAYERS AND ITS

Origins of the structural variation in the silane layers are discussed in terms of the silane treating solution and variations in the substrates. The solution pH, concentration, solvent, hydrolysis time and aging time are some of the important parameters identified.

Influence of silane coupling agent and aging on the repair bond

The use of a silane coupling agent before the application of an adhesive does not significantly affect the process of adhesion to an aged resin. The application of a solvent-free adhesive system was able to restore the cohesive strength values of the material.

Silanes and Other Coupling Agents; Volume 2

Many different aspects of coupling agents were discussed, and both fundamental and applied aspects were accorded due coverage. In addition to formal presentations, there were brisk and lively discussions throughout the symposium, and this event provided an opportunity for cross-pollination of ideas in the broad arena of adhesion promoters.

Systematic study of the effect of silane coupling agent on

Molecular dynamics simulations are used to elucidate the mechanism by which silane coupling agents (SCAs) affect the hydrothermal aging resistance of the epoxy resin (EP)/silica interface, which is the main type of interface existed in/around the underfill adhesive (UF).

Effect of Corrosive Aging Environments on the Flexural

Considering the experimental results, the three silane coupling agents modified the corrosive aging performance of the composites in the order of KH550 > KH560 > A171. This will provide theoretical support for the application of silane-coupling-agent-modified BFRPs in corrosive aging environments.

The influences of silane coupling agents on the heat and moisture

In this work, the interface, mechanical, and electrical properties of basalt fibre composites treated with three coupling agents via damp‐heat ageing were compared. Molecular simulations were...

Silane coupling agents are critical industrial materials widely used in plastics, coatings, composites, and other fields. their performance gradually deteriorates over time, a phenomenon known as "aging." This article explores the causes of aging in silane coupling agents and proposes corresponding preventive measures.

1. Environmental Factors

Environmental factors are a primary cause of aging in silane coupling agents. Increased temperature and humidity accelerate the aging process. High temperatures induce thermal decomposition of organic components in silane coupling agents, producing small molecular byproducts that react with the base material, leading to performance degradation. In humid conditions, moisture penetrates the material and triggers hydrolysis reactions with silane coupling agents, generating acidic substances that further expedite aging.

2. Chemical Degradation

Over long-term use, the chemical structure of silane coupling agents may degrade. For example, organic groups in some silane coupling agents may undergo oxidation or reduction, altering functional groups and diminishing adhesive properties. Additionally, organic groups may polymerize into high-molecular-weight substances, further reducing performance.

3. Physical Damage

Mechanical stress, thermal stress, and other physical forces can damage silane coupling agents. Prolonged friction, stretching, or impact may create microcracks on surfaces, which propagate and compromise structural integrity. Poor packaging or vibration during transportation and storage can also lead to physical damage, affecting performance.

4. Microbial Contamination

Microbial growth and reproduction can contribute to aging. Enzymes secreted by bacteria or molds may break down organic groups in silane coupling agents, reducing their adhesive capacity. Metabolic activities of microorganisms can also convert organic groups into other substances, impairing performance. Storage and handling should minimize microbial contact to reduce aging risks.

5. Ultraviolet (UV) Radiation

UV radiation is a significant aging factor. UV light triggers photochemical reactions in organic groups, producing irritant compounds harmful to human health. It also causes thermal decomposition, generating corrosive gases that accelerate aging. Avoiding direct sunlight exposure during use is critical to mitigating this issue.

6. Human Factors

Human-related factors also play a role in aging. Improper operation, poor equipment maintenance, and substandard raw materials can all induce aging. For instance, unfamiliarity with usage protocols may lead to accidental reactions, while neglected equipment or inferior materials can compromise performance. Enhancing operator training, strengthening equipment management, and ensuring raw material quality are essential preventive steps.

Aging in silane coupling agents results from the interplay of multiple factors. To extend their lifespan, comprehensive preventive measures are necessary:

1. Use high-quality raw materials and ensure clean, dry storage environments.
2. Regularly inspect and maintain silane coupling agents to address issues promptly.
3. Train operators to improve their proficiency and understanding.
4. Implement strict quality management systems to standardize production processes.

By adopting these strategies, the aging process of silane coupling agents can be effectively delayed, ensuring their long-term stability and performance.