Description

Bis(Triethoxysilyl)Ethylene is a bifunctional organosilane coupling agent featuring a central ethylene bridge and terminal triethoxysilyl groups. This molecular structure is critical for creating durable covalent bonds between inorganic substrates and organic polymer matrices. It is essential for manufacturers in the composites, coatings, and adhesives industries seeking to enhance material performance, particularly in demanding environments where moisture resistance and strong interfacial adhesion are paramount.

Application

• As a coupling agent in mineral-filled composites (e.g., glass fiber, silica, talc) to improve mechanical strength and moisture resistance.
• As a crosslinking agent and adhesion promoter in silicone sealants, adhesives, and rubber compounds.
• For the surface treatment of fillers and pigments to enhance dispersion and compatibility in polymer systems.
• In the formulation of moisture-curable resins and coatings for improved durability and substrate bonding.
• As a key intermediate in the synthesis of specialty silicone polymers and hybrid organic-inorganic materials (ORMOSILs).
• For modifying glass or mineral surfaces to create specific functional properties for advanced material applications.

Basic Information

Product Name	Bis(Triethoxysilyl)Ethylene
CAS No.	87061-56-1
Molecular Formula	C14H34O6Si2
Molecular Weight	354.60 g/mol
Synonyms	1,2-Bis(triethoxysilyl)ethane; Ethylene-1,2-diylbis(triethoxysilane); Bis(triethoxysilyl)ethane; 1,2-Di(triethoxysilyl)ethane; Ethylenebis(triethoxysilane); Silane A-2120 (trade name equivalent); Organosilane coupling agent; EINECS 201-729-7
EINECS	201-729-7

Quality Control

Our production of Bis(Triethoxysilyl)Ethylene adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay (GC), identity confirmation (IR, NMR), and purity verification, to ensure it meets precise chemical and physical specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and 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 product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (20°C)	~1.00 g/cm³
Refractive Index (n20D)	~1.410
Moisture (Karl Fischer)	≤ 0.5%

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