Triethoxyvinylsilane CAS 78-08-0

Chemical Name:Triethoxyvinylsilane
CAS No.: 78-08-0
Molecular Fomula: C8H18O3Si
Sample: available

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Triethoxyvinylsilane (CAS 78-08-0): Comprehensive Technical Overview

1. Chemical Identification & Properties

Parameter Specification
CAS Number 78-08-0
Molecular Formula C8H18O3Si
Molecular Weight 190.31 g/mol
Appearance Colorless to pale yellow liquid
Density 0.903 g/mL at 25°C
Boiling Point 160–161°C
Flash Point 34°C (closed cup)
Refractive Index n20/D: 1.398

Comparative Advantage: Superior thermal stability vs. peroxide crosslinkers, lower viscosity (0.9 cP at 25°C) than comparable silanes for improved processing.

2. Key Applications

2.1 Crosslinking Agent

  • Primary use in silane-crosslinked polyethylene (XLPE) for wire/cable insulation
  • Enables ambient-temperature curing vs. traditional high-energy radiation methods

2.2 Coupling Agent

  • Glass fiber treatment: 0.5–1.5% loading improves composite interfacial adhesion
  • Mineral-filled polymers: Enhances dispersion in PP/PE up to 60% filler content

2.3 Hydrophobic Coatings

  • Electronics: Reduces moisture absorption in PCB substrates by 40–60%
  • Construction: Water repellent for concrete with >90% contact angle retention

3. Safety & Handling

Parameter Requirement
Storage Nitrogen atmosphere, <30°C, away from oxidizers
Flash Point 34°C (Class IB flammable)
LD50 (Oral, Rat) 22,500 mg/kg
PPE Chemical goggles, nitrile gloves, vapor respirator above 50°C

Emergency Protocol: For spills >1L, use vermiculite absorption followed by 5% acetic acid neutralization. Fire suppression requires alcohol-resistant foam.

4. Industrial Case Studies

4.1 Cable Manufacturer (China)

  • Application: 110kV power cable insulation
  • Result: 15% increase in production speed vs. peroxide crosslinking
  • Loading: 2.1% with 0.05% dibutyltin dilaurate catalyst

4.2 Automotive Composite Supplier (Germany)

  • Application: Glass fiber-reinforced polyamide
  • Result: 28% improvement in tensile strength at 150°C
  • Process: 0.8% aqueous pretreatment at pH 4.5

5. Technical Inquiry

For formulation assistance or bulk pricing:
Email: info@vivalr.com
Tel: (86) 15866781826

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