Description

Docosenyltriethoxysilane is a long-chain alkyltrialkoxysilane coupling agent, a key intermediate for imparting hydrophobic and oleophilic properties to inorganic surfaces. Its primary value lies in its ability to create durable, water-repellent coatings and enhance the compatibility between organic polymers and inorganic fillers like silica or minerals. This silane is essential for manufacturers in the coatings, sealants, and advanced composite materials industries seeking to improve product performance and longevity.

Application

• Surface Modification Agent: Used to hydrophobically treat silica, glass fibers, and other mineral fillers to improve dispersion in polymer matrices and reduce moisture absorption.
• Coupling Agent for Composites: Enhances the interfacial adhesion between organic resins (e.g., epoxy, polyurethane) and inorganic substrates, leading to stronger, more durable composite materials.
• Waterproofing Additive: Incorporated into coatings, sealants, and construction materials to provide long-lasting water repellency and protection against weathering.
• Release Coatings: Serves as a key component in formulating non-stick and easy-release coatings for industrial and consumer applications.
• Adhesion Promoter: Improves the bonding of paints, inks, and adhesives to difficult-to-bond substrates like metals and treated plastics.
• Rubber and Tire Industry: Used to modify silica fillers in rubber compounds, reducing rolling resistance and improving wet grip in high-performance tire formulations.

Basic Information

Product Name	Docosenyltriethoxysilane
CAS No.	330457-44-8
Molecular Formula	C28H60O3Si
Molecular Weight	472.86 g/mol
Synonyms	22-Triethoxysilyldocosane; 1-Docosene, 1-(triethoxysilyl)-; Docos-1-en-1-yltriethoxysilane; Triethoxy(docos-1-en-1-yl)silane; Vinyltriethoxysilane C22; Long-chain vinylsilane; C22 Vinyltriethoxysilane
EINECS	Contact for details

Quality Control

Our Docosenyltriethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR), to ensure consistent purity and performance. Certificates of Analysis (COA) detailing assay, identity, and impurity profiles are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Density (20°C)	~0.88 g/mL
Refractive Index (n20D)	~1.440

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.