1、Molecular elucidation of cement hydration inhibition by silane coupling
Here the authors show how silane coupling agents hinder calcium dissolution of tricalcium silicate from ab initio metadynamics simulations and hydration experiments.
2、Inhibiting the Polycondensation of Silane Coupling Agents
The effects of a silane coupling agent such as (N - (nbutyl) 23-aminopropyltrimethoxy silane) on old corrugated container (OCC) fibers, as a recyclable material, were studied on the ultimate strength of the prepared OCC fibers/high density polyethylene composites.
3、“Silatranization”: Surface modification with silatrane coupling agents
Silatranization, a specialized variant of silanization using silatrane compounds, is emerging as a powerful strategy to functionalize material surfaces.
Molecular elucidation of cement hydration inhibition by silane coupling
Here we show dissolution behavior of tricalcium silicate (Ca 3 SiO 5) under 3-aminopropyl triethoxysilane impact using ab initio metadynamics, with experimental validation of the retardation effects in silane-treated pastes.
Recent Progress in Silane Coupling Agent with Its Emerging Applications
The covalent attachment of photosensitizing dyes to TiO 2 using silane coupling agents (SCAs) is a promising strategy for enhancing the photocatalytic activity of TiO 2 -based photocatalysts and the photovoltaic conversion of dye-sensitized solar cells (DSSCs).
Molecular elucidation of cement hydration inhibition by
Here we show dissolution behavior of tricalcium silicate (Ca 3 SiO 5) under 3-aminopropyl triethoxysilane impact using ab initio metadynamics, with experimental validation of the retardation effects in silane-treated pastes.
Reactivities of silane coupling agents in the silica/rubber composites
In this work, we systematically assessed the performance of Si69 and Si75 agents in silica/rubber composites based on the density functional theory (DFT) and meanwhile disclosed the relationships...
Molecular elucidation of cement hydration inhibition by silane coupling
Silane coupling agents are widely recognized to retard early hydration when incorporated into fresh cement paste, yet the atomic-level mechanisms underlying their effects on clinker...
How Silane Coupling Agents Become Secret Weapons in
In the field of materials science, silane coupling agents play a crucial role. In particular, KH-570 and KH-560 are two types of silane coupling agents that, when mixed in a 3:2 ratio, can significantly enhance adhesion to substrates.
Interfacial adhesive strength of a silane coupling agent with metals: A
In this study, the effect of a silane coupling agent on interfacial adhesive strength with metals is investigated through first-principles calculations. The challenge of this study is to relate atomic-scale phenomena on the interface to stress-strain relationship.
Silane coupling agents, as critical surface modifiers, are widely utilized in coatings, inks, composite materials, and other fields. excessive use of silane coupling agents not only increases production costs but also poses environmental pollution risks. exploring effective strategies to control their dosage and inhibit their activity has become a hot research topic. This paper aims to analyze the activity mechanisms of silane coupling agents, discuss their potential hazards in practical applications, and propose corresponding inhibition strategies.
The activity mechanism of silane coupling agents lies in their molecular structure, which contains reactive groups capable of reacting with functional groups such as hydroxyls or amines on substrate surfaces. When these agents form stable chemical bonds with the substrate surface, they enhance adhesive strength and wear resistance. this activity is not limitless; it is constrained by factors such as the concentration of silane coupling agents, environmental conditions (e.g., temperature, humidity), and the surface properties of the substrate.
In practical applications, excessive use of silane coupling agents may lead to several issues:
- Cost and Environmental Impact: Excessive use raises costs and environmental burdens. During decomposition, silane coupling agents may release toxic organic compounds, contaminating water and soil.
- Reduced Adhesion Efficacy: Beyond a certain threshold, additional silane coupling agents do not significantly improve adhesive strength. Excessive amounts may even degrade substrate performance, weakening bonding effects.
- Durability Risks: Overuse can compromise the durability of bonded layers. Excess silane coupling agents may create internal stress concentrations, accelerating fatigue failure of the adhesive layer.
To inhibit the activity of silane coupling agents, the following strategies are recommended:
- Precise Dosage Control: Calculate the optimal amount based on substrate properties, bonding requirements, and environmental conditions.
- Formulation Optimization: Select high-activity, eco-friendly silane coupling agents and adjust curing conditions (e.g., temperature, time) to regulate their reactivity.
- Alternative Surface Modification: Employ supplementary techniques such as plasma treatment or laser processing to improve substrate surface properties, reducing reliance on silane coupling agents.
inhibiting the activity of silane coupling agents is key to achieving green surface modification. By optimizing dosage, formulation, curing conditions, and adopting alternative technologies, it is possible to reduce environmental risks, enhance adhesive performance, and improve durability. These measures not only benefit environmental protection but also boost economic efficiency and market competitiveness for enterprises. Future research and practice will continue to explore more efficient and sustainable surface modification methods to support sustainable development.
