1、Silane coupling agent
In the present research, through molecular structure design and the internal emulsification method, we synthesized a series of bio-based waterborne polyurethanes modified with silane coupling agent (SWPU).
2、Preparation and characterization of waterborne polyurethane nail enamel
Intended for preparing silane-modified waterborne polyurethane dispersions and then applying them to the development of environmentally friendly nail enamels, the synthesis mechanism was investigated in this paper to determine the optimal technological parameters.
3、Silane coupling agent
In the present research, through molecular structure design and the internal emulsification method, we synthesized a series of bio-based waterborne polyurethanes modified with silane coupling agent (SWPU).
4、(PDF) Recent Progress in Silane Coupling Agent with Its Emerging
This paper presents the effects of silane coupling agent, which includes interfacial adhesive strength, water treatment, polymer composites and coatings that make it valuable for...
5、Understanding Silane Coupling Agent Performance in Waterborne Systems
Delve into the advantages of using silane coupling agents in waterborne systems, with a focus on KH-602. NINGBO INNO PHARMCHEM CO.,LTD. explains how these chemicals contribute to stability and performance in eco-friendly formulations.
Silane coupling agent
In the present research, through molecular structure design and the internal emulsification method, we synthesized a series of bio-based waterborne polyurethanes modified with silane coupling agent (SWPU).
Preparation and Performance Evaluation of Waterborne Polyurethane
An environmentally friendly waterborne polyurethane (CWPU) emulsion was developed via a dual modification strategy by combining both the silane coupling agent KH-602 with renewable castor oil (CO) as a sustainable substitute for petroleum-based polyols.
Synthesis and Characterization of Self
Therefore, in this paper, four silane coupling agents such as KH540, KH550, KH560 and AEAPTMS were used to hydrophobically modify waterborne polyurethane (WPU). A series of self-matting waterborne polyurethane solutions were prepared with HTPB and PTMG as soft segments and IPDI as hard segment.
Synthesis and characterization of waterborne polyurethane
Herein, series of waterborne polyurethane emulsions were synthesized using the pre-polymerization chain expansion and self-emulsification method, with varying contents of 3-aminopropyl triethoxysilane as the modified post-chain extender.
Silane coupling agent
In the present research, through molecular structure design and the internal emulsification method, we synthesized a series of bio-based waterborne polyurethanes modified with silane coupling agent (SWPU).
Abstract: In the field of materials science, the construction of chemical bonds is critical for achieving functionalization and structural optimization of substances. Silane coupling agents, as a class of important organic-inorganic hybrid materials, have garnered significant attention due to their unique chemical properties and broad application prospects. Among them, waterborne hybrid silane coupling agents, characterized by their environmental friendliness, low toxicity, and high reactivity, demonstrate immense potential in coatings, adhesives, electronic encapsulation, and other fields. This paper explores the fundamental concepts, synthesis methods, application scope, and future development trends of waterborne hybrid silane coupling agents.
1. Fundamental Concepts and Characteristics
Waterborne hybrid silane coupling agents are compounds containing siloxane bonds (Si-O-Si) with organic functional groups introduced to enhance their water solubility and hydrophobic compatibility. These agents form stable protective layers on inorganic particle surfaces, significantly improving mechanical strength, chemical resistance, and thermal stability of materials. Compared to traditional silane coupling agents, waterborne hybrid variants exhibit higher solubility, superior wetting properties, and enhanced environmental compatibility.
2. Synthesis Methods
The preparation of waterborne hybrid silane coupling agents typically involves the following steps:
- Selection of silicon sources: Compounds such as tetraethyl orthosilicate (TEOS) or silica sols serve as precursors.
- Hydrolysis reaction: Silicon sources undergo hydrolysis to form silanol groups (Si-OH).
- Organic functionalization: Hydroxyl groups are modified with organic moieties (e.g., epoxy, amino, or methacrylate groups) to improve hydrophilicity and compatibility.
- Condensation or polymerization: Organic groups are covalently bonded to silanol groups via condensation or radical polymerization, yielding the final product.
3. Application Fields
Waterborne hybrid silane coupling agents are widely utilized across diverse industries due to their distinctive advantages:
- Coatings Industry: They enhance adhesion, abrasion resistance, and corrosion protection, prolonging coating lifespan.
- Electronic Encapsulation: As binders, they improve adhesion between chips and substrates, reducing warpage and cracking.
- Textiles and Automotive Paints: They boost dye affinity, weather resistance, and surface hardness.
- Construction Sealants: They enhance durability, flexibility, and moisture resistance.
4. Future Development Trends
With growing environmental awareness and the push for green chemistry, research on waterborne hybrid silane coupling agents is shifting toward more eco-friendly and efficient directions. Key focuses include:
- Novel Functional Groups: Developing innovative organic groups to optimize performance while minimizing environmental impact.
- Nanotechnology Integration: Leveraging nanomaterials to enhance functionality, stability, and targeted applications.
- Sustainable Processes: Advancing synthesis methods to reduce energy consumption and waste generation.
As an emerging class of organic-inorganic hybrid materials, waterborne hybrid silane coupling agents hold tremendous potential in coatings, adhesives, and electronic encapsulation. By refining synthesis techniques and expanding application frontiers, these agents are poised to drive advancements in materials science while contributing to environmental sustainability and green development.
