Description

Allyltriethoxysilane is a versatile organosilicon compound featuring a reactive allyl group and three hydrolyzable ethoxy groups. This dual functionality makes it a crucial coupling agent and monomer for modifying the interface between inorganic materials and organic polymers. It is essential for manufacturers in the composites, coatings, and adhesives industries seeking to enhance material properties like adhesion, dispersion, and mechanical strength. Allyltriethoxysilane CAS NO 2550-04-1 is a key intermediate for producing specialty silicones and surface-treated fillers.

Application

• Coupling Agent for Composites: Improves the bond between glass, mineral, or metal fillers and polymer matrices (e.g., epoxy, polyester, polyethylene), enhancing mechanical properties and durability.
• Surface Modification of Nanoparticles: Used to functionalize silica, alumina, and other metal oxide nanoparticles to improve their compatibility and dispersion in organic solvents and resins.
• Adhesion Promoter in Coatings & Sealants: Incorporated into primers and formulations to promote adhesion to difficult substrates like metals, glass, and concrete.
• Crosslinking Agent for Silicone Polymers: Serves as a crosslinker or chain extender in the synthesis of heat-curable silicone rubbers and resins.
• Fiberglass Treatment: Applied as a sizing or finishing agent on glass fibers to protect filaments and improve resin wettability and adhesion in reinforced plastics.
• Synthesis Intermediate: A key raw material for manufacturing other functional silanes, silicone oligomers, and specialty organosilicon compounds.
• Moisture-Curing Systems: Used in one-part RTV (Room Temperature Vulcanizing) sealants and encapsulants that cure upon exposure to atmospheric moisture.

Basic Information

Product Name	Allyltriethoxysilane
CAS No.	2550-04-1
Molecular Formula	C9H20O3Si
Molecular Weight	204.34 g/mol
Synonyms	Triethoxy(allyl)silane; Allyltriethoxysilane; (Allyloxy)triethoxysilane; Silane, triethoxy-2-propen-1-yl-; 3-(Triethoxysilyl)-1-propene; A 100 (OSi Specialties); Dynasylan® 1505; KBE-1003; SIA 0610.0; Allyl triethoxysilane
EINECS	219-842-1

Quality Control

Our Allyltriethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity, reactivity, and performance. Certificates of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles are provided with every shipment to guarantee supply reliability and specification compliance for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent hydrolysis and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.395 - 1.405
Density (20°C)	0.89 - 0.91 g/mL
Color (APHA)	≤ 30

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