Silane
Product Description
Product Identification
Chemical name: 1,1,3,3-Tetramethyl-1,3-divinyldisilazane
Synonyms: Tetramethyldivinyldisilazane, DVTMDS, 1,3-Divinyl-1,1,3,3-tetramethyldisilazane, Bis(vinyldimethylsilyl)amine
CAS No.: 7691-02-3
Molecular formula: C8H19NSi2
Molecular weight: 185.41
Boiling point: 161-163 ℃
Density: 0.819g/mL @ 25°C
Specification
Appearance: Colorless transparent liquid
Purity: 95.00%min by GC
Impurity (Divinyltetramethyldisiloxane): 5.00%max by GC
Color (APHA): 50 max
Package
Regular Packing: N.W 160kg/iron drum
Sample Packing: 0.1kg-1kg plastic bottle or under request
Transport Information
Classification:
Class 3 dangerous goods
UN 1993
PG III
HS Code: 2931900090
Status & Application
Commercial available;
Application:
It can be used to produce silicone rubber, silicone colloid and vinyl silicone resin, and also can be used as coating additives, polymer modifiers, and synthetic intermediates for pharmaceuticals and agricultural chemicals, as well as negative adhesion promoter for negative photoresist.
Tetramethyl divinyl disilazane is a colorless transparent liquid, non-toxic, soluble in most organic solvents such as ethyl acetate, toluene, and cyclohexane. CAS number: 7691-02-3, tetramethyldivinyldisilazane content (%): ≥96.0, tetramethyldivinylsiloxane content (%): ≤4.0, refractive index (n020): 1.437—1.439, molecular weight: 185.42, color: ≤50, boiling point: 160°C—161°C, flash point: 34°C, density (25°C) g/cm3: 0.819. It is an active silane coupling agent, mainly used for surface treatment of fumed silica in liquid silicone rubber products.
Silane coupling agent is a kind of organosilicon compound containing two groups of different chemical properties in the molecule. Its classic product can be represented by the general formula YSiX3. In the formula, Y is a non-hydrolyzable group, and X is a hydrolyzable group. Due to this special structure, the silane coupling agent will act at the interface of inorganic materials (such as glass, metal or mineral) and organic materials (such as organic polymers, coatings or adhesives), combining or coupling the two completely different material. It has the function of enhancing the affinity between organics and inorganic compounds, and can strengthen and improve the physical and chemical properties of composite materials, such as strength, toughness, electrical properties, water resistance, and corrosion resistance.
Tetramethyl divinyl disilazane (vinyl silazane) specific use: used to treat fumed white carbon black (normal recommended addition amount 2% -5%), the treated white carbon black becomes hydrophilic Hydrophobic, better affinity with raw rubber; can be used as a synthetic intermediate for medical and other chemicals; can be used as a coating additive; can be used in the manufacture of silicone rubber, silicone resin colloid, vinyl silicone resin; can be used as a ceramic surface Treatment agent.
